Coated Polyester Fabric Research Articles

Biomass phytate salt-based flame-retardant polyurethane coating for outdoor polyester fabric: A long-lasting solution

Polyurethane (PU)-coated polyester fabrics are commonly used in outdoor settings, but their flame-retardant properties are somewhat lacking. In this study, biomass phytate salt was applied to improve the flame retardancy and anti-dripping properties of PU-coated polyester fabrics. This study also explored the hydrostatic pressure, mechanical performance, heat release capacity, flame retardancy, washing durability, and mode of action of coated polyester fabrics. The polyester fabric coated with 4 % phytate salt-modified PU exhibited impressive self-extinguishing properties without any dripping. Additionally, the coated polyester fabric showed a low damaged length of 12.2 cm and a high LOI of 33.8 %, satisfying the requirements for the B1 level. The coated polyester fabric proved to withstand 50 washing cycles, highlighting its remarkable flame retardancy efficiency and durability. It also exhibited a significant reduction in heat release, suggesting the fire safety performance. Analysis of the thermal resistance and char residue revealed a condensed flame-retardant mechanism attributed to the phytate-based system. Overall, phytate salt shows promising potential as a long-lasting flame-retardant system for outdoor PU-coated polyester fabrics.

Morphology, conductivity, thermal stability and electromagnetic radiation shielding study on Cu, Cu-Ni coated polyester fabric and polyester mesh

Morphology, conductivity, thermal stability and electromagnetic radiation shielding study on Cu, Cu-Ni coated polyester fabric and polyester mesh

Metallic phytates modified polyurethane coating for constructing long-lasting flame-retardant outdoor polyester fabric

The flame-retardant (FR) properties of polyurethane (PU)-coated polyester fabrics used in outdoor settings are unsatisfactory. This study aimed to enhance the FR performance of PU-coated polyester fabrics by synthesizing a series of metallic phytate salts through the chelation of phytic acid and four metal ions (Mg2+, Fe2+, Fe3+, Al3+). The flame retardancy, washing durability, mechanical properties, combustion performance, and FR mechanism of coated PET fabrics were investigated. Among the different metallic phytate salts, phytate aluminum salt exhibited stable FR efficiency without significantly affecting the mechanical performance of the fabric. The coated polyester fabric with 4 wt% phytate aluminum salt possessed a high LOI of 34.2 %, and achieved self-extinguishing action and met the requirements for B1 classification. The coated fabric also displayed remarkable flame retardancy and durability, even after undergoing 50 washing cycles. Moreover, the addition of phytate aluminum salt resulted in a significant reduction of 34.3 % and 56.8 % in total heat and smoke release, respectively, indicating high fire safety. The phytate aluminum salt acted as a catalyst for the dehydration and carbonization of the PU-coated polyester in the condensed phase. This research introduces a novel approach for producing sustainable and long-lasting FR PU-coated polyester fabrics.

High sensitive humidity sensor based on PEDOT:PSS/CMC-Na coated polyester fabric with directional moisture transport performance

Flexible humidity sensors with excellent flexibility and sensitivity have been widely used in various fields such as human and plant health monitoring and management, non-contact human-machine interaction, smart e-textiles, and industrial and agricultural production. However, many sensors are limited their application due to the problems of unbreathable and poor wear comfort. Herein, a highly sensitive humidity sensor based on flexible polyester fabric with directional moisture transport is proposed. The facile method of coating is conducted by the preparation of poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) and sodium carboxymethylcellulose (CMC-Na) paste with adjustable content and applied to the polyester fabric. The difference of hydrophilicity between the two sides of the fabric caused by the coating helps to directional moisture transport, thus giving rapid sensitivity, while using PEDOT: PSS can obtain the changes of electrical conductivity coming from the humidity. and the addition of CMC-Na not only helps the coating, but also provides hydrophilic groups, which is conducive to humidity sensing and directional moisture transport. The combination of this moisture-sensitive coating and directional moisture transport gives the sensor a fast humidity response time of 0.35 s, a wide humidity detection range (0‐100%(0–100% RH) and sensitivity of 4.15. Furthermore, the sensor can maintain the humidity response time in milliseconds even after being subjected to water washing and friction, indicating its excellent durability and stability.

Intelligent polyester fabric with fire safety for personal temperature management

The stability of personal thermal management are increasingly indispensable in modern society due to the growing demand for energy savings and environmental protection. Herein, inspired by solid–liquid host–guest materials, we propose a coating preparation strategy that uses a solid flame-retardant gel as the host skeleton filled by a solid–liquid switchable phase change flame-retardant functional guest, thus fabricating smart polyester fabrics for personal temperature management in one step. Both attenuated total reflectance (ATR) and scanning electron microscopy (SEM) are used to confirm the host–guest structure coating on the surface of polyester fabric. Results from simulated cold and heating environments show that the coated polyester fabric has a desirable personal temperature regulation ability. The skin wrapped by the coated polyester fabric presents a higher temperature compared with bare polyester fabric, in simulated cold conditions. Meanwhile, in heating conditions, the internal temperature of the coated polyester fabric is 5.2 oC lower than that of the bare polyester fabric. Furthermore, the coated polyester fabric exhibits excellent flame retardancy in the combustion test, with a horizontal burning rate of 85.7 mm/min and a peak of heat release rate (PHRR) reduction of 52.8 %, attributed to higher graphitization degree and suppressed pyrolysis products. For promoting the practical application, the water vapor transmission, washing resistance, and mechanical performance are also deeply studied. Hence, a phase-change flame-retardant polyester fabric constructed with a host–guest structure provides huge application potentials in various personal temperature management fields, such as snow rescue, field camping, and adventure activities.

An investigation on the effect of acid dyes as dopants on the electrical conductivity and heat generation of polypyrrole coated polyester fabric

This study investigates the effect of three different acid dyes as dopants on the electrical properties and heat generation of polypyrrole-coated polyester fabric. The polyester fabric was weight reduced by 11 %. Sodium dodecyl sulfate (SDS) was chosen as a reference dopant. Polypyrrole was synthesized on polyester fabric through in-situ chemical polymerization in an oxidation bath containing ferric chloride as oxidant. SEM micrographs showed that the undoped polypyrrole layer is considerably denser with much smaller pores in comparison to the doped ones. It was also revealed that the undoped and SDS doped samples showed the lowest and highest add-on, respectively. Weight reduction of polyester fabric led to a lower electrical resistance irrespective of employing a dopant or not. All the doped polypyrrole-coated weight-reduced polyester fabrics showed a lower resistance than the undoped sample. SDS doped sample enjoyed the lowest electrical resistance, followed by acid red1, acid red 18 and indigo carmine. The SDS doped polypyrrole-coated fabric also showed the highest add-on followed by acid red 1, acid red 18 and indigo carmine. The rise of temperature versus time for the coated samples is exponential, reaching a plateau after about 3 min. Moreover, higher voltages led to higher temperatures. Acid red 1 doped polypyrrole reached the highest temperature (96 °C) at 12 V. In spite of higher electrical resistance, the fabric coated with acid dye doped polypyrrole showed a higher capacity for heat generation than the fabric coated with SDS doped polypyrrole.

Fabrication and EMI (electromagnetic interference) shielding performance of polyester fabrics coated with polyaniline via in-situ polymerization

Polyaniline (PANI) coated polyester fabrics were synthesized via in-situ polymerization approach. It was demonstrated that the two electromagnetic interference (EMI) shielding results which measured by vector network analyzer (VNA) and calculated by dielectric parameters have almost the same values. The experimental results indicate that PANI is semi-crystalline in nature so it exhibits 2 broad peaks in XRD pattern. DC conductivity which measured by four-probe technique increased from insulative region to maximum value of 8.2 S/cm. Less 0.1% transmission was observed in UV, visible and near infrared (NIR) region. The EMI shielding was tested in the frequency range of 1–13 GHz, and it increased from 3 dB to 38 dB for pure fabric and PANI coated fabric respectively. The thermal imaging signal analysis shows the complete blockage of IR radiation could make human body almost invisible to thermal imagining camera.

Biomass‐functionalized graphene oxide toward waterborne polyurethane composite with enhanced flame retardancy and hydrophobicity

AbstractIn this study, phytic acid‐polydopamine functionalized GO (GO@PA@PDA) was first synthesized. The DOPO derivatives, hydroxyl‐terminated polydimethylsiloxane (PDMS) and GO@PA@PDA were incorporated into waterborne polyurethane (WPU) by in situ polymerization. The chemical structure of GO@PA@PDA was characterized by Fourier transform infrared spectroscopy, Raman spectroscopy, X‐ray diffraction, ultraviolet–visible (UV–vis) spectroscopy and scanning electron microscopy. A cone calorimeter test and a universal testing machine investigated the flame retardancy and mechanical properties of GO@PA@PDA modified waterborne polyurethane (GPD‐WPU). The results showed that the incorporation of GO@PA@PDA into WPU significantly enhanced the flame retardancy by reducing the heat release rate, total heat release, smoke production rate, and total smoke production. Furthermore, the mechanical properties of the GPD‐WPU composite films increased with the dosage of GO@PA@PDA from 0 to 2.0 wt%, and decreased slightly afterward. The contact angle and atomic force microscope measurements showed that the addition of GO@PA@PDA increased the surface roughness of GPD‐WPU composite film, thereby improving the hydrophobicity of GPD‐WPU composite films. Afterward, GPD‐WPU as a finishing agent was coated on polyester fabric. The experimental results of limiting oxygen index (LOI) and the vertical burning test indicated that when the dosage of GO@PA@PDA was 2.5 wt% in GPD‐WPU, after‐flame time, after‐glow time, damage length and LOI value of the coated polyester fabric were 2.9 s, 0 s, 6.8 cm, and 28.6%, respectively.

Effect of UV Exposure on the Mechanical Properties of Polyurethane-Coated Fabrics

Polyurethane materials can be used industrially in different ways, some of which can be used as textile materials or as auxiliary materials applied to textile materials. Polyurethane stands out as a widely used polymer for coating textile products used in outdoor applications, because of high stability at low temperature, flexibility, no or very little volatile organic component content, high water resistance, pH stability, excellent solvent resistance, weather resistance, and many other chemical and mechanical properties. In the study, cotton, polyester, and viscose fabrics were coated with polyurethane and aged under UV light to investigate the causes and behaviors of the mechanical degradation effects of UV on the coating material and fiber. The results indicate that the PU coating process improves the mechanical properties of textile materials while being exposed to UV rays deteriorates the fabric structure. The deterioration in the structure of raw and coated fabrics with the effect of UV increased the air permeability. According to the results of DSC analysis, the increase in the time of UV exposure did not create significant differences in terms of thermal degradation temperatures in both cotton and viscose fabrics. The glass transition temperatures (Tg) increase with more exposure to UV rays, and the UV exposure time had a negative effect on the melting temperature (Tm) and enthalpy (ΔH) of coated polyester fabrics.

Nanoscale chemical heterogeneity enables the co-existence of opposing superhydrophobic and hygroscopic properties

Superhydrophobicity and hygroscopicity are two properties that are theoretically exclusive to each other. The fabrication of functional fabrics with these two properties remains very challenging. In this work, it is demonstrated that a non-sticky superhydrophobic and hygroscopic fabric coating can be prepared via the photo polymerization of hexadecyl acrylate and methacrylic acid. On coating surface, the phase-separation-induced chemical heterogeneity has a unique feature of possessing elevated continuous hydrophobic domain and depressed hydrophilic domain, as evidenced by atomic force microscopy measurement. The elevation of hydrophobic domain (i.e., depression of hydrophilic domain) allows the hydrophilic domain to make negligible contribution to the surface wettability to water drop, but can absorb water molecules, thus inducing the unique superhydrophobic but hygroscopic property. The coating has a very low total surface energy of 22.61 mN m−1, with its polar part (0.01 mN m−1) being negligible, thereby showing a high static water contact angle of ~112° on flat glass slide. The coated polyester fabric shows a non-sticky superhydrophobicity with a static water contact angle of ~151° and a water shedding angle of ~10°, as well as good hygroscopic and anti-static properties. We anticipate that this novel coating and the reported strategy of generating the particular chemical heterogeneity may lead to the development of advanced special wettability coatings for various applications.

Lightweight polyester fabric with elastomeric bismuth titanate composite for high-performing lead-free X-ray shielding

To protect the workers from overexposure to X-ray radiation, conventional lead (Pb)-based aprons are widely applied to many medical institutions and nuclear industries. However, these Pb-based aprons have many disadvantages such as heaviness, toxicity, and discomfort wearing experience, there is thus a strong demand for the replacement using lightweight, Pb-free, and flexible X-ray shielding materials. In this study, a new solution using a sandwich-structure composite (polyester fabric-elastomeric bismuth titanate composite-polyester fabric) is explored to develop the superior X-ray shielding materials. To demonstrate this concept, nanosized bismuth titanate (BTO) was used as an effective shielding component, which was blended with polydimethylsiloxane (PDMS) to form a PDMS/BTO composite. The sandwich-structure PDMS/BTO coated polyester fabric (SL-PDMS/BTO-PES) was then fabricated using 2 × coated PES fabrics and compressed together. X-ray transmission of these SL-PDMS/BTO-PES fabrics with an average thickness at 1.1 mm was measured at 80 kVp and 100 kVp, showing 0.35 mm Pb-equivalent X-ray shielding ability. Moreover, this SL-PDMS/BTO-PES was 42% lighter than 0.35 mm Pb sheet, indicating that this lightweight and flexible sandwich-structure coated PES textile can be potentially engineered in the future for replacing the conventional Pb-vinyl X-ray shielding clothing.

Green flame-retardant coatings based on iron alginate for polyester fabrics: Thermal stability, flame retardancy and mechanical properties

Polyester (PET) fabrics are widely used in our daily life, but they burn and drip quickly when they encounter flames, and the dripping can cause secondary damage to human bodies. In this study, flame-retardant finishing of PET fabrics was performed by preparing alginate coatings modified with Fe3+. A simple dip-coating technique was used and sodium alginate solution was employed to submerge PET fabrics, after that the coatings were complexed with Fe3+ to endow the flame retardancy of PET fabrics. The micromorphology, mechanical properties, thermal stability, flame retardancy, and burning behaviors of the coated PET fabrics were analyzed. Coated PET fabrics had a limiting oxygen index value of 29%. The vertical flame test illustrated that PET/Iron alginate-2 exhibited excellent self-extinguishing behaviors, no drips appeared. The peak heat release rate of PET/Iron alginate-2 was reduced by 70.3%. In the warp directions, compared with the control, the tensile strength of coated PET textiles increased dramatically. In a word, it is a green method to improve the flame retardancy and anti-dripping of PET fabrics.

Full-stress Range Stiffness Characteristics and a New Constitutive Model for Tensile Behaviors of Coated Fabrics under Plane Stresses

The paper investigates the mechanical properties of coated polyester fabrics in biaxial monotonic tensile tests. The nonlinear behaviors of the constitutive parameters within the full-stress range were in detail analyzed, and a new constitutive model based on the specific coupling relationships between the uniaxial and biaxial flexibilities was proposed to describe the complex tensile behaviors of coated fabrics under plane stresses. Finally, the accuracy of the nonlinear model in numerical simulations was verified, and special attention was devoted to the finite element (FE) implementation of the model as an ABAQUS user material (UMAT) subroutine. It was found that the constitutive parameters of the material varied noticeably with the stress level and ratio. The stiffnesses in the larger-stress direction are nearly stress-dominated, and the stress ratios exert a more significant effect on Poisson’s ratios than that on stiffnesses in the lower-stress direction. The proposed constitutive model, considering the material nonlinearities, is validated by the good correlations between the numerical and experimental results. Additionally, the FE simulation results using the UMAT are consistent with the experiments which reveals that the constitutive model proposed and the results obtained in this work are reliable.

Polydopamine-assisted load of palygorskite on polyester fabric for moisture absorption and perspiration

Polyester (PET) fabric is one of the most daily used clothing fabrics; however, the perspiration management of PET is poor. There remains a lack of an effective method for simultaneously satisfying the fabric requirements of excellent moisture management properties, low energy consumption, and environmental protection for industrial production. Therefore, herein, a simple two-step impregnation method was used to prepare palygorskite (Pal)-coated PET fabric. First, dopamine was polymerized to the polydopamine (PDA) membrane on the PET fabric surface to improve its adhesive properties. Subsequently, Pal was bound onto the PDA-modified PET fabric to prepare the Pal/PDA/PET fabric. The modification increased the fabric's the hydrophilicity, lipophilicity, moisture absorption, light-to-heat conversion performance, evaporation rate, and tensile strength. Additionally, the Pal with several hydroxyl groups increased the number of hydrogen bonds, enhancing water adsorption. The high-water evaporation rate was due to the high light-to-heat conversion by PDA and the low evaporation enthalpy of the Pal/PDA/PET fabric. Thus, the Pal/PDA/PET with excellent perspiration management can be potentially used in flash-drying clothing. Furthermore, the fabric modification by mineral provides a green and cost-effective method for improving the moisture absorption and perspiration of fabrics.

Studies on electrolytic and doping behavior of different compounds and their combination on the electrical resistance of polypyrrole film via electrochemical polymerization

AbstractElectrochemical polymerization of pyrrole requires a supporting compound for higher polymer yield. Such compounds have been designated as electrolyte or as dopant. This article examines the roles of such compounds when used individually or in combination for the synthesis of polypyrrole films and polypyrrole coated polyester fabric via in situ electrochemical polymerization. With a view to obtain higher polymer deposition, the effect of 0.15 mM concentration of sodium nitrate, sodium anthraquinone‐2‐sulfonate, p‐toluenesulfonic acid and oxalic acid on the system current and the surface resistance was examined by means of chronoamperometry technique. FTIR and WAXD spectra were used to establish the formation of polypyrrole and doping of different compounds. SEM analysis confirmed deposition of polypyrrole onto the fabric. The charge utilization factor helped in identifying a good dopant. Sulfonic acid‐based salt AQSA‐Na was found to be useful as a dopant as well as an electrolyte. A combination of 0.075 mM sodium nitrate as an electrolyte and 0.075 mM pTSA as a dopant resulted in least surface resistance of polypyrrole film and polypyrrole coated polyester fabric which was almost 88% lower than the polypyrrole coated polyester fabric prepared using the surface resistance of polypyrrole coated polyester fabric via pyrrole vapor polymerization.

Porous, colorful and gas-adsorption powder from wool waste for textile functionalization

Textile waste is a fast-growing challenge and a large quantity of used textile ends up in landfills and incineration plants, which can pollute the environment through the production of toxic substances and greenhouse gases. This work explores the utilization of waste wool in a circular context by mechanically transforming it into wool powder for reusing as sustainable additives for textile functionalization. A comprehensive investigation was conducted to understand the performance of fabrics coated with wool powder in adsorbing ammonia and formaldehyde based on monitoring their dynamic adsorption behavior using time-resolved infrared spectroscopy. In addition, the application of dyed wool powders as eco-friendly colorants for surface modification of textiles was explored and the performance of the colored powders in gas adsorption was investigated. Compared with ordinary wool fibers, the prepared powders possessed increased surface area, higher surface energy and a more heterogeneous surface. These properties made wool powder an ideal candidate for gas adsorption applications. The adsorption efficiencies of 66% and 62% were achieved in removing ammonia and formaldehyde by coated fabrics, respectively, which are significantly higher than the performance of ordinary wool fibers. Furthermore, the coated polyester fabrics showed an excellent cycling performance for both ammonia and formaldehyde (recovery yield up to 68.1%). The reuse of waste wool for functional modification of fabrics not only extends the practical applications of waste resources, but also alleviates the negative effect of textile disposal on the environment.

The finished polyester fabric with hot NH4OH pretreatment and mixed ZnO-Zn(OH)2 nanoparticles for hydrophobic property

This work aims to modify the hydrophobic coated polyester fabrics using 2%w/v ammonium hydroxide (NH4OH) at 90℃ prior and subsequently dipped in two difference aqueous zinc solution batchs containing 0.6%w/v zinc precursors with/without starch and NH4OH, finally dehydration, and characterized by the attenuated total reflection - Fourier transform Infrared (ATR-FTIR) and Raman spectroscopy (Raman), X-ray diffraction (XRD), Field emission scanning electron microscope (FE-SEM), Energy dipersive spectrometry (EDX), and Water contact angle (WCA) of 10 mL dropping at 23℃ and humidity of 63%. Raman spectra and XRD patterns results showed e-zinc hydroxide (e-Zn(OH)2), zinc oxide nanoparticle (ZnO NP) and ZnO-starch nanocomposite crystallized in the orthorhombic and hexagonol wurzite structure, respectively. The increasing intensities of Raman vibrational modes at 369 cm-1 and 750 cm-1 confirmed the increased of e-Zn(OH)2 content with additional starch, therefore, WCA trend of those finished fabric surfaces decreased. WCA optimum of 138° before washing and 136° after 5 washing cycles of the treated fabric which was activated by NH4OH acts as scourer and also as promoter of e-Zn(OH)2/ZnO NPs as revealed from ATR-FTIR result. While, other observed lower hydrophobic property after 5 washing cycles due to the hydroplilic ZnO-starch nanocomposite.e-Zn(OH)2/ZnO NPs. While others, there were observed lower hydrophobic property after 5 washing cycles due to the hydroplilic ZnO-starch nanocomposite.

Determination of adsorbable organic halogens in textiles by ultrasonic extraction-high temperature combustion absorption-ion chromatography

建立了一种对纺织品中可吸附有机卤化物(AOX)的超声提取-高温燃烧吸收-离子色谱定量检测分析新方法。该方法采用超声方式提取纺织品中的AOX,提取液加入活性炭进行振荡吸附,并用酸性硝酸钠溶液对无机卤化物进行去除。采用程序升温的氧化燃烧方式对吸附AOX的活性炭进行裂解、燃烧及气化,其产生的卤化氢等气体随载气进入吸收液并完全转化为无机卤素阴离子,采用离子色谱分离测定,外标法定量。实验优化了超声提取时间、活性炭用量、燃烧气及其流量、燃烧升温程序、吸收液和吸收方式等前处理条件,并对离子色谱的仪器分析条件如色谱柱、柱温及淋洗液流速等进行优化。结果表明,氟、氯、溴、碘4种卤素离子的标准溶液在0.02~10 mg/L范围内呈线性关系,线性相关系数(R2)均在0.999以上;AOX测定的方法定量限为0.10~0.50 mg/kg。以棉、毛和涤纶3种不同种类的阴性纺织样品作为样品基质,选取典型的有机卤化物进行加标,在低、中、高3个加标水平下测得AOX的平均回收率为82.3%~98.7%,相对标准偏差(RSD, n=7)为2.0%~5.7%,表明方法具有良好的回收率和精密度。将该方法应用于实际纺织样品的测定,检出了不同含量的AOX,且重复性好。研究建立的方法通过采用活性炭的振荡吸附、程序升温的高温氧化燃烧方式和多孔吸收瓶的二级吸收方法,提高了AOX转化为无机卤素的回收率;同时利用离子色谱仪器选择性好、灵敏度高的特点成功地一次性分离检测4种AOX,且无杂质离子的干扰。该方法简单、准确、可靠,满足国内外法规和标准对纺织品中AOX的限量要求,适用于纺织品中AOX的分析测定。

Water Repellent Modified Polyester Fabric Based Triboelectric Nanogenerator for Harvesting Human Mechanical Energies

Wearable triboelectric nanogenerators (TENGs) for converting human mechanical energies into electricity are being investigated widely, because of their potentially diverse applications that come from wearable power supplied to multifunctional self-powered sensing. However, external influences, such as water or high humidity, seriously degrade the electrical output of TENGs. Therefore, a simple method was implemented for fabricating a water repellent fabric-based TENG for harvesting human mechanical energies. Polytetrafluoroethylene (PTFE) or SiO2 modified by trichloro(octadecyl)silane (OTS) were sprayed onto a polyester (PET) fabric surface to increase hydrophobicity. The PTFE and SiO2/OTS coated polyester fabrics exhibited excellent water repellency with a high-water contact angle of ∼144° and ∼153°, respectively. The surface morphology of the coated fabrics showed roughness with a granular structure, which was responsible for air entrapment that prevented water from penetrating the fabric. Furthermore, electrical output of conventional PET fabric-based TENG was found to improve with the deposition of PTFE particles on the fabric surface. By pairing the PTFE coated fabric with aluminum (Al) tape, in order to fabricate TENG, the device generated a maximum voltage of 10.2 V and short-circuit current of 0.20 µA, with a power output of 0.23 W/cm2, which is 14 times greater than that of SiO2/OTS coated fabric-based TENG. The process for achieving water repellent fabric is simple, and the coating materials are available. Thus, a water repellent fabric-based TENG is promising for large-scale production of wearable harvesters from power supplied to multifunctional self-powered sensing.

Phenol Formaldehyde Resole/Nanosilver Colloid Immobilized Polyester Textile Composite for Antibacterial Applications

AbstractThis work reports the fabrication of an antibacterial phenol formaldehyde (PF)/silver (Ag) nanocomposite coated polyester fabric material for industrial coating applications. Spherical Ag nanoparticles (NPs), with an average particle size of 20 nm were uniformly distributed in the PF resole resin. The polymer nanocomposites with different percentages of Ag NPs (0.2 %, 0.4 %, and 0.6 %) have been coated on polyester fabric by a hand layup procedure. The fabric samples were characterized by scanning electron microscopy (SEM), energy dispersive X‐ray analysis (EDAX) and X‐ray diffraction analysis. The thermal properties of samples have been investigated by differential scanning calorimetry and thermo‐ gravimetric analysis. The effect of Ag NPs on the adhesion features of resole resin coated polyester fabric was evaluated by the peel strength measurement. The optimized composite showed excellent antibacterial properties against Staphylococcus aureus and Escherichia coli bacteria. All the resole PF/Ag nanocomposite coated polyester fabrics are biocompatible. It has been proposed for a variety of applications in the fields of apparel, architecture and construction, insulation, automotive and chemical processing.