Modern Technology Research Articles

Ultrathin, flexible, and high-performance bacterial cellulose/copper nanowires film for broadband electromagnetic interference shielding and photothermal conversion

The swift advancements in wearable electronics, implantable medical devices, fifth-generation mobile communication, unmanned aerial vehicles, and military stealth technology have led to a surge in demand for highly flexible multifunctional films. Consequently, the enhancement of electromagnetic radiation and the requirement for normal operation in extreme environments have posed significant challenges for flexible electromagnetic interference (EMI) shielding films. In this paper, ultra-thin, flexible bacterial cellulose (BC)/copper nanowires (CuNWs) (BCu) films with Janus structure are prepared by the combination of microwave-assisted hydrothermal synthesis and vacuum filtration method, which can be used for broadband EMI shielding and photothermal conversion. BCu films demonstrate exceptional mechanical properties, boasting a tensile strength range from 48.5 to 77.3 MPa, accompanied fracture strain 4.1–5.9 %. When CuNWs mass in Janus film increases to 10 mg, the conductivity of BCu-4 Janus films can reach 4761.90 S cm−1. The ultra-strong EMI shielding effectiveness (SE, above 56.00 dB) is achieved in 6–26.5 GHz for BCu-4 film with an ultra-thin thickness (16 μm). Moreover, the specific EMI SE of BCu-4 is as high as 4294.38 dB mm−1. Furthermore, BCu Janus films exhibit outstanding photothermal conversion performance. A saturation temperature of BCu-4 Janus film reaches as high as 75 °C under irradiation of one sunlight (100 mW cm−2). The facile and collaborative strategy is provided for fabricating ultra-thin, flexible multifunctional Janus films with EMI shielding and photothermal conversion capabilities, addressing EMI problems in modern electronic technology and offering new avenues for applications in various fields.

Automated methodology for calculating key production indicators of oil field development for business planning model

Background: In order to secure the stable and efficient operations of oil-producing companies, it is essential to forecast the profitability and ROI of the enterprise, as well as to regulate development for the next 5 years. Accurate forecasts facilitate more informed planning and decision-making, directly influencing the economic sustainability and competitiveness of the enterprise. Aim: The purpose of this study is to develop an innovative approach to automate the methodology for calculating key development indicators in a business planning model. Materials and methods: The study utilizes methods for collecting and analyzing production and geological data, empirical forecasting models, and statistical analysis techniques to enchance the accuracy and reliability of forecasts. This approach employs modern algorithms and technologies to process large volumes of data, which allows for more accurate and reasonable forecasts of key production indicators of the field development. Results: This methodology can be applied to forecast a five-year business plan and evaluate its expected implementation. It is integrated into the ‘Production planning and monitoring’ of the ABAI information system, which allows direct data export from the database, automates the monthly monitoring of production indicators, and generate reports for further export. Conclusion: The proposed method for automated planning of key production indicators of the development enhances the accuracy and efficiency of forecasting, thereby improving the quality of planning and evaluating the implementation of the business plan. This contributes to more informed and strategically validated management of oil production processes. Automation of planning processes reduces the labor costs traditionally associated with manual analysis and calculations, freeing up resources for more strategic purposes. This enables rapid responses to changes in production conditions and prompt adjustments of plans. As a result, managers can allocate resources more efficiently, minimize risks, and increase the overall productivity of oil production operations.

Van der Waals semiconductor InSe plastifies by martensitic transformation.

Inorganic semiconductor materials are crucial for modern technologies, but their brittleness and limited processability hinder the development of flexible, wearable, and miniaturized electronics. The recent discovery of room-temperature plasticity in some inorganic semiconductors offers a promising solution, but the deformation mechanisms remain controversial. Here, we investigate the deformation of indium selenide, a two-dimensional van der Waals semiconductor with substantial plasticity. By developing a machine-learned deep potential, we perform atomistic simulations that capture the deformation features of hexagonal indium selenide upon out-of-plane compression. Unexpectedly, we find that indium selenide plastifies through a martensitic transformation; that is, the layered hexagonal structure is converted to a tetragonal lattice with specific orientation relationship. This observation is corroborated by high-resolution experimental observations and theory. It suggests a change of paradigm, where the design of new plastically deformable inorganic semiconductors can focus on compositions and structures that facilitate phase transformations, going beyond the conventional dislocation slip.

How do customers react to the integration of AI in customer experience

Artificial Intelligence is revolutionizing customer service through enhanced customization and efficiency. Processing natural language makes interactions more human-like and guarantees higher levels of customer satisfaction. With the help of AI-enabled Chatbots communication with users occurs instantaneously, answering their questions and providing immediate responses. By forecasting preferences and suggesting recommendations through the evaluation of data collected on customers, artificial intelligence improves service quality. The amalgamation of modern technology and customer service provides a smooth, personalised and linear client experience. While AI-driven chatbots and tools prove time and cost-effective, occasional delays or failures instil human hesitation. The escalating trend of integrating AI in customer service significantly enhances the overall human experience, according to various studies. However, this study aims to address a dearth of empirical research on AI-enabled customer experiences. The absence of emotional intelligence in current AI models contributes to lacklustre customer commitment and engagement. This study investigates how customers react to Artificial intelligence being integrated into the customer service industry. The study scrutinizes pivotal factors—Perceived trustworthiness, personalization, perceived ease of use, perceived usefulness, accuracy, and quality of information provided—examining their interdependence in augmenting the customer experience. This study will utilise a proposed model which utilises the stimulus, organism, and response model. Results underscore how these factors contribute to improving customer loyalty through the mediation role of customer engagement. Hence, the study reveals the interconnectedness of these factors with brand affinity and loyalty, emphasizing the importance of these factors in fostering lasting customer relationships.

The role of innovative musical education in the development of social skills in children and adolescents

This article aims to investigate the significance of innovative musical education in fostering social skills among children and adolescents. To achieve this objective, the authors devised teaching approaches centered on the development of social skills through vocal training, utilizing modern technologies such as Minute Voice WarmUp and Swiftscales. The curriculum was designed to facilitate the formation of articulatory approaches to vocal singing, the enhancement of technical skills in vocal performance, the cultivation of emotional expression in execution, and the establishment of dual-voice rendition. Findings revealed that emotional expression in singing (0.491) and articulation (0.483) played pivotal roles in developing social skills, along with dual-voice rendition (0.207), influencing the freedom and confidence in execution. Moreover, the study results demonstrated that among the acquired social skills in children and adolescents, presenting vocal capabilities effectively (1.96) stood out prominently, enabling individuals to express their opinions in the interpretation of melodies. Additionally, students developed voice control skills (1.83), closely associated with the precision of word pronunciation and the conveyance of inherent intonation. The practical significance of this work lies in the potential for shaping social skills through vocal singing, guided by the utilization of digital applications such as Minute Voice WarmUp and Swiftscales.

Can Eye Tracking Help Assess the State of Consciousness in Non-Verbal Brain Injury Patients?

Background/Objectives: Developments in eye-tracking technology are opening up new possibilities for diagnosing patients in a state of minimal consciousness because they can provide information on visual behavior, and the movements of the eyeballs are correlated with the patients' level of consciousness. The purpose of this study was to provide validation of a tool, based on eye tracking by comparing the results obtained with the assessment obtained using the Coma Recovery Scale-Revised (CRS-R). Methods: The mul-ti-center clinical trial was conducted in Poland in 2022-2023. The results of 46 patients who were not able to communicate verbally due to severe brain injury were analyzed in this study. The state of consciousness of patients was assessed using the Minimally Conscious State Detection test (MCSD), installed on an eye tracker and compared to CRS-R. The examinations consisted of performing the MCSD test on patients five times (T1-T5) within 14 days. Collected data were processed based on the FDA and GCP's regulatory requirements. Depending on the nature of the data, the mean and standard deviation, median and lower and upper quartiles, and maximum and minimum values were calculated. Passing-Bablok regression analysis was used to assess the measurement equiva-lence of the methods used. Results: There was no difference between the MCSD and CRS-R in the raw change between T5 and T1 time points, as well as in the total % of points from all time points. The MCSD results from each time point show that at least the first two measurements serve to famil-iarize and adapt the patient to the measurement process, and the third and next measurement should be considered reliable. Conclusions: The results indicated a significant relationship be-tween the scores obtained with MCSD and CRS-R. The results suggest that it seems reasonable to introduce an assessment of the patient's state of consciousness based on eye-tracking technology. The use of modern technology to assess a patient's state of consciousness opens up the opportunity for greater objectivity, as well as a reduction in the workload of qualified personnel.

Financial Development of Disney: Analyzing Box Office Revenue, Derivative Products, and Audience Demographics

Disney is known around the world for its unique animated films, theme parks and classic characters. Through continuous innovation and development, Disney has combined The traditional art of animation with modern technology to create many classic animated films such as "The Lion King," "Frozen" and "Beauty and the Beast."This paper explores Disney's success factors in terms of box office revenue, derivative products, and audience demographiAnalyzingzing relevant literature and it summarizes how Disney has solidified its leading position in the global entertainment industry through high-grossing films, a wide range of derivative products, and precise market positioning. The study reveals that Disney's continuous innovation and market adaptation, including the introduction of new content and diverse products, have successfully attracted audiences of all ages. The paper also provides recommendations for further enhancing Disney's market position and audience engagement, such as investing in original content, emphasizing diversity and inclusivity, and expanding digital and interactive experiences.

Detection of seizure clustering using ultralong-term subcutaneous EEG monitoring

AbstractEpileptic seizures usually occur unpredictably yet not necessarily at random times. Cyclical patterns of seizure recurrence have been broadly described. Long-term seizure documentation may reveal individual cyclical seizure patterns; however, seizure reporting by patients or their caregivers is often inaccurate. Modern technologies for at-home monitoring of epileptic seizures enable continuous EEG recording for objective seizure counts over long-term timescales. Here, we present the clinical case of a patient with temporal lobe epilepsy due to hippocampal sclerosis who underwent ultralong-term subcutaneous EEG recording over a 1-year period, which revealed the occurrence of seizure clusters at three- to four-weekly intervals. The case demonstrates the possibility of detection of subject-specific seizure timing using a minimally invasive subcutaneous EEG recorder for ultralong-term at-home seizure monitoring. Information about individual seizure timing may contribute to a more personalized chronotherapeutic treatment approach in which antiseizure medication can be maintained at low doses during the low-risk periods and increased briefly before the anticipated seizures.

Modern technologies and subject content of a foreign language course for future media specialists

Importance. The subject-language integrated approach is relatively new in the field of foreign language teaching methods. It pursues a dual goal related to the formation of professional communication skills in a foreign language (the formation of communicative and professional competencies). The application of the subject-language integrated approach faces several challenges related to both teachers and students. Firstly, the level of training of students should correspond to the B1B2 level. Secondly, the level of teacher training should combine the foreign language teaching with the specialized content teaching. The potential of the subject-language integrated approach in teaching foreign languages has already been applied and evaluated in the future doctors training, lawyers, and agricultural specialists.Research Methods. The subject-language integrated approach can be incorporated into the language training for future professionals in the media sphere (areas of training “Journalism”, “Advertising and Public Relations”, “Media Communications”). The professional component of the course is related not only to the thematic content of the classes, but also to the possibility of using modern technologies (for example, the artificial intelligence capabilities, virtual and augmented reality technologies) in the media products development within the framework of the training course with their subsequent discussion in the language being studied.Research Results. The subject-language integrated approach has obvious potential in the language training of future media specialists (areas of study “Journalism”, “Advertising and Public Relations”, “Media Communications”). The specialized subject content of the course, as well as the technologies and tools used in the practice of media specialists in the media products and advertising products development, along with language competencies, allow the formation of professional competencies.Conclusions. The aim of the research is to further investigate the potential of an integrated approach to the training of future media professionals. Of particular interest to the study is the identification of specific speech skills required for effective foreign language communication in the speech interaction professional sphere.

Error analysis based on a tunable wave plate polarization interferometric imaging spectrometer

Interference imaging spectroscopy combines modern imaging technology with spectral technology, holding significant importance for object imaging and spectral detection. This article introduces the principle of an adjustable wave plate polarization interferometric imaging spectrometer. The example design specifications are set for an observation wavelength range of 450–780 nm and a maximum resolution of 2 nm at 450 nm, with a 0.5 in detector as the base for calculating the specific dimensions of the Soleil–Babinet compensator. An investigation was conducted on the issues of nonuniform sampling, as well as three types of mechanical errors: flatness, wedge angle tolerance, and optical axis orientation accuracy. Emphasis was placed on discussing the impact of these errors on the instrument’s optical path difference and spectral reconstruction accuracy. This research provides theoretical guidance for the design and engineering of this miniaturized imaging spectrometer.

ANALYSIS OF THE INTEGRATION OF TECHNOLOGICAL INNOVATIONS IN THE MOTIVATION STRATEGIES OF THE ENTERPRISE

This article investigates the impact of contemporary technological innovations on corporate motivational strategies, focusing on the integration of digital tools, analytical systems, and mobile applications into employee motivation processes. The relevance of the topic is underscored by the rapid technological advancements that are transforming management practices and employee needs, as well as enhancing business competitiveness. The works of Ukrainian scientists and economists have been analyzed regarding various aspects of the impact of modern technologies on employee motivation, approaches to their implementation, and the practical results they provide for enterprises. The paper examines how technological innovations—particularly digital feedback platforms, analytical systems, mobile applications, and gamification—affect motivational strategies by enabling more personalized and effective motivation management. It explores how these tools contribute to increased employee productivity, reduced turnover, and improved organizational culture. Existing approaches and outcomes of new technology implementations are evaluated, highlighting the need for further research to develop adaptive and dynamic motivational systems. The article offers recommendations for optimizing employee motivation processes through modern digital tools and approaches. The findings are valuable for practitioners and researchers involved in human resource management and technological innovations in business. Attention is drawn to further research on the impact of technological innovations on employee turnover management and the adaptation of new hires. It is determined that assessing the effectiveness of new approaches to employee integration and motivational support during the first months of employment can help develop strategies that reduce turnover rates and increase the engagement of new employees. It is substantiated that the prospects for further research in this field focus on expanding the understanding of how technologies can not only support but also transform motivational strategies, providing businesses with new opportunities to achieve their goals and enhance competitiveness.

MARKETING FACTORS OF COMPETITIVENESS MEDITERRANEAN MARKET OF TOURIST SERVICES

The article analyzes the system of marketing factors of the competitiveness of the Mediterranean leisure industry since the promotion of tourist services today becomes impossible without the use of modern technologies. It is noted that the digitalization of marketing communications allows for the formation of unique competitive advantages of the Mediterranean tourism industry through the use of an integrated approach to the most effective combination of classical marketing provisions and the potential of modern technologies in the competitive environment of the tourism industry. Classical marketing techniques and digital technologies offer enormous potential for maximizing tourism revenues, increasing tourism demand, improving the quality of supply and facilitating communication. The influence of marketing elements on the competitiveness of the tourism industry of the Mediterranean countries is evaluated. It has been proven that this influence is uneven and differs according to the destination and the stage of creation and provision and implementation of the tour service. This influence is observed most in the sphere of pricing in Spain and least - in the sphere of tourism product promotion in such European countries as Albania and African countries - Morocco, Algeria and Tunisia. Directions for the analysis of the competitiveness of destinations in the Mediterranean region are proposed, which can be carried out according to different criteria and through different perspectives, such as: customer expectations, tourist satisfaction and service value, tourist and destination motivations, branding, destination attractiveness, destination sustainability and destination value. It is emphasized that, in contrast to classical marketing, modified tourism marketing was formed as a mix that includes seven elements: tourism product, tourism product pricing, distribution of tourism services, tourism promotion, human potential, service provision process and customer service, and which to varying degrees provide competitive advantages of the countries of the Mediterranean basin. It is shown that the competitiveness of the Mediterranean tourism industry has a double structure. Its first element is the process of positioning tourist products on the market of leisure services, the second is the efficiency of the operational activities of tour operators. It has been confirmed that the drivers of the main changes in the market of tourist services of the Mediterranean that have occurred recently are the intensive introduction of information technologies in marketing activities, where the main trends in the development of the leisure industry have become the globalization of the tourist business and the dominance of Internet technologies in the system of promoting tourist services.

Impact of faculty professional development programs on the adoption of modern technology

Impact of faculty professional development programs on the adoption of modern technology

The method of distributing the costs of growing perennial non-bloodless grasses by types of products

The introduction of modern technologies for growing perennial grasses in feed production has caused the need to improve the methodology for allocating costs by product type. The article describes the current method of distributing the costs of cultivation. The problems of distribution of these costs are revealed. It is proposed to open two analytical accounts for the sowing of a grass mixture of perennial uncovered grasses for a more accurate distribution of costs in the future, in the year of sowing: «The cost of tillage and sowing of perennial grasses», «The cost of caring for crops and harvesting perennial grasses». A new method of cost allocation by types of perennial herb products has been developed.

Embracing LLM Feedback: the role of feedback providers and provider information for feedback effectiveness

Feedback is an integral part of learning in higher education and is increasingly being provided to students via modern technologies like Large Language Models (LLMs). But students’ perception of feedback from LLMs vs. feedback from educators remains unclear even though it is an important facet of feedback effectiveness. Further, feedback effectiveness can be negatively influenced by various factors; For example, (not) knowing certain characteristics about the feedback provider may bias a student’s reaction to the feedback process. To assess perceptions of LLM feedback and mitigate the negative effects of possible biases, this study investigated the potential of providing provider-information about feedback providers. In a 2×2 between-subjects design with the factors feedback provider (LLM vs. educator) and provider-information (yes vs. no), 169 German students evaluated feedback message and provider perceptions. Path analyses showed that the LLM was perceived as more trustworthy than an educator and that the provision of provider-information led to improved perceptions of the feedback. Furthermore, the effect of the provider and the feedback on perceived trustworthiness and fairness changed when provider-information was provided. Overall, our study highlights the importance of further research on feedback processes that include LLMs due to their influential nature and suggests practical recommendations for designing digital feedback processes.

Intermediality of Modern Art and Technologies of its Perception

The purpose of the article is to reveal the peculiarities of the manifestation of termediality in modern art in their influence on perceptual processes and to propose appropriate technologies for the perception of intermedial artistic phenomena. The research methodology is based on the concepts of media theory, communication theory, modern art theory and uses general scientific principles of interconnection, systematisation, and synergy. The purpose and objectives of the article necessitated the application of the method of extrapolation of heuristic algorithms of exact sciences to the heuristics of artistic phenomena with a view to practical methods of organising the perception of the intermediality of modern art by students of higher education. The use of the analytical method made it possible to identify the content and design resources of intermediality in its current development. The scientific novelty consists in projecting the properties of intermediality of modern art onto the technology of its perception in the process of university training. In the article, for the first time in domestic art history, the peculiarities of the manifestations of intermediality of modern art in connection with the communication of its recipients are understood. Conclusions. Intermediality is one of the main trends in the development of art, which consists in a kind of dialogue. From the point of view of perceptual processes, intermediality actualises the integrity of perception, which involves different sensory modalities. Intermediality in the modern artistic space outgrows the boundaries of the interaction of arts, connecting other spheres of culture and ensuring the inseparability of synthesised elements in creative practices different from traditional ones. Perception of intermedia modern art requires preparation, which should be carried out in the educational process. Effective technologies for perceiving the intermediality of modern art are interactive and intermedial.

ГНОСЕОЛОГІЯ УПРАВЛІННЯ ТРУДОВИМ ПОТЕНЦІАЛОМ ПІДПРИЄМСТВ В УМОВАХ НЕВИЗНАЧЕНОСТІ

The existence of conditions of uncertainty in the process of managing the labor potential of enterprises gives rise to the need to find optimal management methods and tools for ensuring and combining the available human resources, their knowledge, experience and qualifications with the main components of the enterprise's potential, he strategy and goals of its development, ensuring the company's need for employees with the necessary qualifications and effective use of the labor potential of both individual employees and the team as a whole. A research aim is to learn the process of managing the labor potential, based on the current conditions of uncertainty in the development of enterprises. The object of the research is the process of managing the labor potential of enterprises in different economic conditions. The method of the research are modern methods and technologies of scientific knowledge, methods and techniques of conducting scientific research, tools of systemic, complex, economic analysis, principles of management of enterprises and their labor resources, which allow to review the existing approaches to the management of labor potential and identify directions stabilization of enterprises in modern economic conditions. The hypothesis of the research was an assumption about the possibility to determine the logic of learning the process of managing the labor potential of enterprises in modern conditions of uncertainty. The statement of basic materials. It is proved that epistemology is applied in the research in a purposeful way, as it is a tool of knowledge and a philosophy of managing the labor potential of enterprises in conditions of uncertainty. It has been confirmed that the management of labor potential is a component of the general process of managing the production potential of the enterprise, which means that it makes a direct contribution to the results of operations, the volume and output of products, the creation of certain benefits not only by the economic entity itself, but also contributes to the national income of the country. A certain philosophy of labor potential management is proposed, aimed at developing a special toolkit and acquiring new knowledge that can be used in labor potential management programs in wartime and postwar times. The originality and practical significance of the research is confirmed by the above philosophy of managing the labor potential of enterprises in modern conditions of uncertainty. Conclusions and perspectives of further research. The implemented epistemology of labor potential management made it possible to state that labor potential is a complex system with certain properties that requires the formation of additional requirements both for the assessment of labor potential and for its management. Therefore, the formation of an effective philosophy of labor potential management requires the constant development of personnel, the development of special programs for the management of labor potential based on the existing conditions of uncertainty of enterprises, including war and post-war times. Further research will be aimed at the development of special labor potential management programs, based on the sphere of activity of enterprises and their regional location

АУДИТ ВПРОВАДЖЕННЯ РИНКОВОЇ ІНФРАСТРУКТУРИ В УПРАВЛІННІ КЛАСТЕРАМИ

The article discusses the issue of the audit of the implementation of market infrastructure in the management of clusters, which is a key factor for increasing the efficiency and competitiveness of modern economic systems. Special attention is paid to the analysis of the role of market infrastructure in the development of cluster formations, which contributes to the synergistic effect, the unification of enterprises, scientific institutions and other business entities to achieve common economic goals. The purpose of the study is to carry out a comprehensive analysis of the implementation of market infrastructure in the management of clusters and determine its impact on the effectiveness of the functioning of cluster formations in Kyrgyzstan. The main attention is paid to the assessment of infrastructural components, such as logistics, financial services, information technology and institutional support, which ensure the competitiveness and sustainable development of clusters in the conditions of the modern economy. The object of the study is auditing methods and approaches used to assess the effectiveness and risks of innovative processes of introducing market infrastructure during cluster management. Research methods: logical and meaningful method, methods of comparison, systematization, induction and deduction, analysis and synthesis, coefficient method. The main hypothesis of the follow-up. Effective implementation of market infrastructure in the management of clusters has a positive effect on their competitiveness and ability to adapt to changes in the economic environment. The lack of proper infrastructure or its shortcomings can significantly limit the potential of clusters in achieving a synergistic effect and ensuring economic growth. Present of the main material. The authors highlight methodological approaches to the audit of market infrastructure, including the analysis of key indicators such as logistics and information networks, financial and credit institutions, as well as government support mechanisms. The importance of conducting an audit to identify problematic aspects that prevent the efficient functioning of clusters and to develop recommendations for their elimination is substantiated. Originality and practical significance. The study also presents the results of the analysis of the impact of the introduction of market infrastructure on the competitiveness of clusters and their ability to adapt to changes in the global economic environment. The issue of integration of cluster strategies with regional and national economic plans was separately considered. On the basis of empirical data, conclusions are drawn regarding the effectiveness of infrastructure changes and practical recommendations for improving cluster management are offered. Conclusions and prospects for further research. The results of the audit show that the market infrastructure is a key element that contributes to the development of clusters, ensuring effective interaction between the participants of the cluster association, improving their productivity and competitive advantages. Implementation of infrastructure components, such as modern information and communication technologies, financial institutions and logistics networks, is crucial for improving the efficiency of cluster management.

THE IMPORTANCE OF SATELLITE SYSTEMS AND NAVIGATION IN STEAM EDUCATION

The research focuses on the relevance of STEAM (Science, Technology, Engineering, Arts, and Mathematics) in modern society, education, and the role of satellite systems. The STEAM approach combines technical and creative skills to provide students with a holistic education that encourages innovative problem-solving and critical thinking. Understanding the workings of geostationary satellites and navigation systems, vital to many modern technologies, is essential for developing the competencies students need in the digital world. An engineering approach to understanding the concepts and content we use in our everyday lives is pointed out. The research emphasizes that integrating these topics into the educational process promotes interdisciplinary integration of physics, mathematics, geography and informatics knowledge and enhances students' digital competencies. Using innovative pedagogical approaches such as simulations, project work, and practical workshops, teaching complex subjects such as satellite systems effectively while contributing to the development of creativity and critical thinking is possible. This approach ensures that the education system effectively prepares young people for life in a technologically advanced and globalized society, where science and technology are becoming increasingly important. Keywords: EGNOS, navigation, satellite systems, STEAM

Thermosetting boron-nitride-filled polybutadiene composites with enhanced thermal conductivity and good dielectric properties

Low dielectric materials with high heat dissipation, low dielectric constant (Dk), and dielectric loss (Df) are urgently needed to address the issues of signal cross-talk and heat accumulation arising from the rapid development of modern communication technology and the integration of microelectronics. Polyolefins, as hydrocarbon polymers, have shown significant potential due to their excellent low dielectric properties. However, their low polarity and flexible structures limit their thermal conductivity and thermomechanical properties. In this study, we developed a method to prepare thermosetting polybutadiene composites with enhanced thermal conductivity and good dielectric performance by modifying hexagonal boron nitride (h-BN) and hydroxyl-terminated polybutadiene (HTPB) with thermally cross-linkable benzocyclobutene (BCB) groups. The properties of the resulting composites were tailored by varying the filler content. With 30 wt% of the BCB-modified filler, the composite (HB-30) displayed excellent dielectric properties (Dk = 2.70; Df = 1.67 × 10−3 @10 GHz). Meanwhile, it exhibited a thermal conductivity of 0.615 W/mK at 35 °C, which was 7.1 times that of pristine HTPB. It also showed significantly enhanced mechanical properties and thermal stability with a storage modulus of 2.7 GPa and a glass transition temperature (Tg) of 208.5 °C. This method proved effective for preparing polymer composites with enhanced thermal conductivity, heat resistance, mechanical properties and good dielectric properties, making them suitable for high-frequency communication applications.