Adhesion Of Films Research Articles

One-Step synthesis of nanosized Cu-Ag films using atmospheric pressure plasma jet

Thin films of copper-silver (Cu-Ag) composed of nanosized particles were successfully synthesised and deposited on glass and carbon substrates under various metal ratios in a single step using an atmospheric pressure plasma jet (APPJ) system. This rapid synthesis and deposition technique only requires very low power input (20 W) and rudimentary solutions of metal salt precursors and DI water without additives, pretreatment, or post-treatment process. Successful Cu-Ag alloying was observed, with excellent compositional and deposition area control. Strongly adherent films can be formed on conductive and non-conductive substrate, making APPJ an ideal and sustainable approach for large-scale deposition of multi-component thin metallic films. A comprehensive characterisation of Cu-Ag alloys deposited using APPJ and their potential use as electrocatalytic CO2 reduction catalysts is discussed.

Nanomechanical and Structural Characteristics of Nanodiamond Composite Films Dependent on Target-Substrate Distance

AbstractThis study explores the optimization of target-substrate distance (TSD) in coaxial arc plasma deposition technique for depositing nanodiamond composite (NDC) films on unheated WC–Co substrates, with a focus on enhancing properties relevant to cutting tool applications. TSD significantly impacted film growth and adhesion, while hardness and Young’s modulus remained stable within the 10–50 mm TSD range. Increased TSD led to reduced deposition rates and film thickness, but improved quality by eliminating macroparticles and reducing surface roughness. Notably, the NDC film deposited at 10 mm TSD exhibited exceptional adhesion resistance, a thickness of 11.45 μm, low compressive internal stress (2.8 GPa), and a surface roughness (Sa) of 280 nm, coupled with an impressive hardness of 49.12 GPa. This film also achieved a favorable deposition rate of 1.05 nm/s. In comparison, the film deposited at 15 mm TSD displayed a maximum hardness of 51.3 GPa, lower Sa of 179 nm, but a reduced deposition rate of 0.29 nm/s. The estimated C sp3 fraction correlated well with the nanoindentation measurements, while internal stress showed a consistent relationship with film adhesion. These findings suggest that a TSD of 10 mm is optimal for balancing hardness, adhesion, deposition rate, and surface roughness, making NDC films a promising candidate for cutting tool applications.

In-Depth Characterization of Two Bioactive Coatings Obtained Using MAPLE on TiTaZrAg

TiZrTaAg alloy is a remarkable material with exceptional properties, making it a unique choice among various industrial applications. In the present study, two types of bioactive coatings using MAPLE were obtained on a TiZrTaAg substrate. The base coating consisted in a mixture of chitosan and bioglass in which zinc oxide and graphene oxide were added. The samples were characterized in-depth through a varied choice of methods to provide a more complete picture of the two types of bioactive coating. The analysis included Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), ellipsometry, and micro-Raman. The Vickers hardness test was used to determine the hardness of the films and the penetration depth. Film adhesion forces were determined using atomic force microscopy (AFM). The corrosion rate was highlighted by polarization curves and by using electrochemical impedance spectroscopy (EIS). The performed tests revealed that the composite coatings improve the properties of the TiZrTaAg alloy, making them feasible for future use as scaffold materials or in implantology.

Dual-mode electrochemical/colorimetric capillary-driven microfluidic device for simultaneous determination of Δ⁹-tetrahydrocannabinol and cannabidiol in cannabis flower

Cannabis flower is well-known for its high levels of cannabidiol (CBD). However, the medical-grade cannabis flowers must meet strict standards to guarantee high CBD content and minimal to no contamination of Δ⁹-tetrahydrocannabinol (Δ⁹-THC). Given their similar redox potentials as determined by electrochemical detection, a dual readout approach becomes essential for accurately measuring the individual concentrations of Δ⁹-THC. In this work, we developed a capillary-driven microfluidic device that integrated electrochemical and colorimetric detections. The device was made from low-cost, transparent hydrophilic PET film and double-sided adhesive film with a pump-free delivery function. Once the sample solution was loaded, analysis of total Δ⁹-THC and CBD was conducted using an electrochemical technique, with a limit of detection (LOD) of 0.26 μg/mL and linear ranges of 0 – 120 μg/mL for both total Δ⁹-THC and CBD. Simultaneously, the sample solution autonomously flowed to the colorimetric zone within the transparent hydrophilic PET film, with corresponding LOD and linear ranges of 0.44 μg/mL and 0–120 μg/mL specifically for CBD. The method involved subtracting the CBD concentration obtained by colorimetry from the total Δ⁹-THC and CBD concentration obtained by electrochemical detection. Therefore, the proposed device, with its excellent analytical performance and advantageous features of affordability, simplicity, and fully portable light-controlled box, offers a practical alternative for quality control in the assessment of Δ⁹-THC and CBD levels in cannabis flowers.

Cyanophenol and benzyl phosphonic acid grafted electrodes for poly(butyl viologen) thin film-based electrochromic device

Viologens are considered among the most promising electrochromic materials for utilization in electrochromic devices (ECDs). In this regard, poly(butyl viologen) (PBV) has gained interest due to its stability, conductivity, and ease of synthesis, thus making it suitable for electrochromic applications. Regrettably, the poor adhesion of PBV thin film with substrates/electrodes deters the redox properties and long-term stability of PBV-based ECDs. To address this issue, herein, two types of surface-modified indium tin oxide (ITO) electrodes, grafted with 4-cyanophenol (P–CN-ITO) and benzyl phosphonic acid (BPO3-ITO), are introduced for the deployment in PBV-based ECDs. The optical contrast (ΔT, %) for substrate-modified P–CN and BPO3-based ECD was measured to be ∼57.0 and ∼59.5, respectively, which was remarkably higher (an improvement of ∼66 %) than that of ECD with bare ITO (∼34.3). Meanwhile, the coloration times (τc) of the P–CN, BPO3, and bare ITO-based ECD were registered to be ∼1.7, ∼2.0, and ∼4.1 s, respectively, thus revealing the superiority of utilized functional groups over the unmodified substrate. The P–CN and BPO3-based ECD retained ∼70.2 % and ∼55.5 % of initial ΔT, respectively, after continuous switching of 10,000 cycles, thus showing high endurance and reversibility. The XPS results indicated the strong covalent bond formation between the utilized functional groups (P–CN and BPO3) and ITO, which delivered improved electrochemical, optical, and stability behavior when deployed in ECDs. Our study suggests that P–CN and BPO3-based substrates can be promising for deployment as terminal electrodes in viologen-based ECDs for improved overall performance.

Enhancing sp3 formation in DLC on low thermal conductivity substrate: Interval deposition minimizing ion energy sensitivity

Depositing sp3-rich diamond-like carbon (DLC) on low thermal conductivity substrates is difficult due to the high sensitivity of sp3 formation to ion energy. This sensitivity is attributed to the heating effect of ion bombardment during plasma-enhanced chemical vapor deposition (PECVD) processing. This study introduced an interval deposition method aimed at minimizing the ion energy sensitivity, thereby achieving sp3-rich DLC deposition and broadening the process window. The variation in sp3 content of deposited DLC showed that the interval deposition can enhance sp3 formation, which is particularly significant when the single deposition duration is ≤1 s and the ratio of interval duration to deposition duration is ≥3. Deposition experiments with varying bias voltages confirmed that the ion energy sensitivity of sp3 formation in DLC can be effectively reduced by the proposed method. The analysis of transient film temperature during the deposition process revealed that this method took effect by limiting the temperature elevation of the film. Performance comparison showed that the adhesion of films to the substrate was improved by 138 % using the interval deposition method, compared to the traditional continuous deposition. This user-friendly and high-tolerance deposition method can significantly advance the application fields of DLC coatings.

Effect of UV ageing on debonding of double glass laminates based on different crosslinking and thermoplastic PV encapsulants

To evaluate the potential of novel thermoplastic polyolefin (TPO) encapsulants as alternative for peroxide crosslinking ethylene vinyl acetate (EVA) copolymer and polyolefin elastomers (POE), compressive shear glass laminates were prepared and characterized using EVA and POE benchmark grades and TPO film adhesives (TPO-3.5, TPO-F and TPO-UV). The specimens were exposed to Xenon arc light with an UV irradiation of 40 W/m2, a black panel temperature of 65 °C and relative humidity of 10 % for up to 3,000 h. Visual, optical, mechanical and chemical changes were assessed by light microscopy, UV–visible–near infrared (UVVISNIR) spectroscopy, compressive shear testing, as well as differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS) on fractured surfaces. In contrast to EVA and POE laminates, enhanced birefringence was detected due to a higher degree of crystallinity of the TPO encapsulants. Nevertheless, the investigated TPO double-glass laminates revealed a significantly better ultimate mechanical shear performance at 60 °C, also after UV exposure for 3.000 h. TPO-3.5 was the best-performing grade after 3,000 h followed by TPO-UV, TPO-F, EVA and POE. While the aged and fractured EVA, POE, TPO-F and TPO-UV laminates exhibited carboxylic acid signatures differing in intensity, no carboxylic acid residues were detected on the fractured TPO-3.5 surface. TPO-3.5 is characterized by a lower melt flow index and hence, a higher average molar mass compared to TPO-F and TPO-UV. For the crosslinked EVA and POE, the test temperature was already within the melting range of the non-crosslinked, polyethylene rich phase of these peroxide crosslinked encapsulants.

P‐257: Late‐News Poster: Highly Efficient Geometrically Stretchable Organic Light Emitting Diodes with Angle Independent Narrow‐Band Emission

Herein, we demonstrated the first highly efficient geometrical stretchable top‐emitting organic light emitting diode by incorporating the pre‐stretched optical adhesive (OA) film. The enhancement of device efficiencies with light extraction phenomenon brought by the nanowavy corrugated structures of OA substrate. GSOLED shows stability in stretchable conditions and displays narrowband emission with color purity. The device shows very high current efficiency and EQE of 221 cd A ‐1 and 51 %.

Automated enzyme-linked immunosorbent assay for point-of-care COVID-19 testing

The COVID-19 pandemic pushed the demand for readily available monitoring tools, leading to the development of electrochemical point-of-care devices. This work presents an electrochemical capillary-driven immunoassay (eCaDI) device based on polyethylene terephthalate (PET) and adhesive films featuring a screen-printed carbon electrode (SPCE) for the detection of SARS-CoV-2 nucleocapsid (N) protein in clinical samples. The SPCE was modified with protein A and capture antibodies (Ab1) to ensure biomolecule immobilization and enhance sensitivity to detect N protein. The eCaDI automates an enzyme-linked immunosorbent assay (ELISA) through sequential reagent delivery, allowing for one-step sample addition. This process involves capturing the N protein by Ab1, followed by the automated delivery of HRP-labelled antibody and 3,3’,5,5’-tetramethylbenzidine (TMB) followed by electrochemical detection through TMB reduction. The SPCEs are sensitive and selective for SARS-CoV-2 N protein and stable for four weeks. Inactivated virus was used to determine a limit of detection (LOD) of 627 PFU/mL. The results obtained through immunoassay on eCADI were consistent with those of the RT-PCR method, showing a coefficient of determination (R2) of 0.816 for 27 nasal swab samples from SARS-CoV-2 infected individuals. The developed eCADI is an alternative to conventional ELISA, given the device's low cost (less than $1), low consumption of samples and reagents, low waste generation, and short analysis time (5 min). Moreover, the immunoassay has shown potential for diagnosing COVID-19 in decentralized areas.

High-temperature oxidation behavior of Mar-M247 and Mar-M247LC for aero-engines at 800–950 °C in air

The isothermal oxidation behavior of Mar-M247 and Mar-M247LC was investigated in air at 800–950 °C for 500 h. The oxidation activation energies of 327.7 kJ/mol and 281.4 kJ/mol were obtained, respectively. The oxidation kinetics and oxide layer evolution indicated that the Cr3+ outward diffusion dominated the oxide film growth. Firstly, NiO replaced Cr2O3 as the outer layer above 900 °C. Next, the formation of the internal Al2O3 was closely related to the γ' phase dissolution. The size of the γ' and the γ/γ' interfacial area may be one of the possible reasons for the minor differences in the Mar-M247 and Mar-M247LC oxidation properties. And finally, it is speculated that the oxide pegs in the oxide layer enhance the adherence of the oxide film to the substrate.

TPU-assisted adhesive PDMS film for dry or underwater environments

Adhesive polymer films with anisotropic properties on either side have attracted tremendous interest for biomedical and engineering applications. However, developing an innovative solution that provides effective adhesion under both dry and wet conditions remains a considerable challenge. In this study, we devised a novel process for creating adhesive films by casting polydimethylsiloxane (PDMS) onto a thermoplastic polyurethane (TPU) substrate. During the curing process, the PDMS layer in contact with the TPU was lightly cross-linked, which significantly increased adhesion. The catalytic reaction used for polymerization was regulated by the TPU, which is known to adsorb metal ions. This adhesive PDMS film (APF) demonstrated outstanding adhesion on various substrates under dry and underwater conditions and maintained adhesion even after repeated use. In practical applications, the APF proved to be an effective waterproof patch by adhering to the surfaces of objects submerged in water.

Effects of Curing Defects in Adhesive Layers on Carbon Fiber-Quartz Fiber Bonded Joint Performance.

Due to their mechanical load-bearing and functional wave transmission, adhesively bonded joints of carbon fiber-quartz fiber composites have been widely used in the new generation of stealth aviation equipment. However, the curing defects, caused by deviations between the process environment and the setting parameters, directly affect the service performance of the joint during the curing cycle. Therefore, the thermophysical parameter evolution of adhesive films was analyzed via dynamic DSC (differential scanning calorimeter), isothermal DSC and TGA (thermal gravimetric analyzer) tests. The various prefabricating defects within the adhesive layer were used to systematically simulate the impacts of void defects on the tensile properties, and orthogonal tests were designed to clarify the effects of the curing process parameters on the joints' bonding performance. The results demonstrate that the J-116 B adhesive film starts to cure at a temperature of 160 °C and gradually forms a three-dimensional mesh-bearing structure. Furthermore, a bonding interface between the J-116 B adhesive film and the components to be connected is generated. When the curing temperature exceeds 200 °C, both the adhesive film and the resin matrix thermally degrade the molecular structure. The adhesive strength weakens with an increasing defect area ratio and number, remaining more sensitive to triangle, edge and penetration defects. By affecting the molecular structure of the adhesive film, the curing temperature has a significant impact on the bonding properties; when the curing degree is ensured, the curing pressure directly impacts the adhesive's performance by influencing the morphology, number and distribution of voids. Conversely, the heating rate and heat preservation time have minimal effects on the bonding performance.

Wear-resistant and adherent nanodiamond composite thin film for durable and sustainable silicon carbide mechanical seals

In response to environmental concerns, there is a growing demand for durable and sustainable mechanical seals, particularly in high-risk industries like chemical, petroleum, and nuclear sectors. This work proposes augmenting the durability and sustainability of silicon carbide (SiC) ceramic seals with the application of a nanodiamond composite (NDC) film through coaxial arc plasma deposition (CAPD) in a vacuum atmosphere. The NDC coating, with a smooth surface roughness of Ra = 60 nm as substrate, demonstrated a thickness of 1.1 μm at a deposition rate of 2.6 μm/h. NDC film has demonstrated exceptional mechanical and tribological characteristics, such as a hardness (H) of 48.5 GPa, Young's modulus (E) of 496.7 GPa, plasticity index (H/E) of 0.098, and fracture toughness of H3/E2 = 0.46 GPa, respectively. These NDC films showcased commendable adhesion strength (>60 N), negligible wear, and low friction (≤0.18) during dry sliding against a SiC counter material. Raman analysis has confirmed the nanocomposite structure of NDC film, emphasizing the role of highly energetic carbon ions in enhancing film adhesion by forming SiC intermetallic compounds at the interface through the diffusion of silicon atoms from the substrate into the films. The abundance of grain boundaries and rehybridization of carbon sp3 to sp2 bonding is perceived to improve tribological performance. CAPD excels in synthesizing long-life eco-friendly NDC coatings for durable and sustainable mechanical seals, featuring smooth surfaces, superior adhesion, outstanding hardness, and wear resistance, making them high potential candidates for various tribological applications.

Investigation of structure, morphology, and corrosion behavior of carboxylic acids/hydroxyapatite/chitosan coatings on Ti discs for implants

Titanium (Ti) and its alloys are widely used in bone defect repair owing to their advantages, including high strength, corrosion resistance, and biocompatibility. The formation of a stable oxide layer on Ti implants enhances the osseointegration process. Nevertheless, additional progress is required to improve the incorporation of these implants at the microscopic and nanoscopic levels to achieve a biocompatible interface. The main objective of this study was to enhance the morphology of hydroxyapatite and the corrosion resistance of Ti implants by applying hydroxyapatite/chitosan (HA/Cs) nanocomposite coatings embedded with carboxylic acids. The coatings were fabricated by electrodeposition, wherein various acid concentrations (acrylic and acetic acids) were employed as Cs electrolyte solvents to enhance the adhesion and bond strength with the titanium metal substrate. The microstructures of the HA/Cs coatings were analyzed using X-ray diffraction. The results demonstrated that the structure of HA was affected by the type of acid used and its concentration as the crystallinity increased with a high concentration of acrylic acid. Additionally, the morphology of HA/Cs was analyzed using a transmission electron microscope. The results showed that the morphology of HA/Cs changed from a hexagonal rod-like shape with acrylic acid samples into a needle-like shape in acetic acid samples. The corrosion behavior was investigated using electrochemical impedance spectroscopy (EIS) in a simulated body fluid (SBF) at 37±2ºC. The EIS results showed a high corrosion resistance with phase angles close to −80° and high impedance values of 80.5 kΩ cm2 with a high concentration of acrylic acid. These results indicated the formation of a highly adhesive and stable film on the implants in the test solution. In conclusion, based on this study and our previous work, the corrosion resistance, good biocompatibility, and biomineralization properties of the prepared HA/Cs-coated Ti recommend it as an alternative implant for clinical applications.

Efficient modeling of heat conduction in multiply bonded composites covered with thermal barrier coating

In engineering practice, 3D (three-dimensional) composites consisting of multiply thin layers of anisotropic materials have been extensively applied. For enhancing their thermal endurance, the composites are often coated with a very thin layer of medium with low conductivity, usually referred to as the thermal barrier coating (TBC). This paper presents an efficient algorithm for the boundary element method (BEM) to accurately compute the nearly singular integrals in modeling 3D anisotropic heat conduction in TBC-coated composites, consisting of several thin anisotropic media. This algorithm is especially efficient because no analytical transformation of the integrands is involved as proposed in the past. When the TBC is prescribed with Dirichlet condition, a new equivalent convective condition is proposed to replace the TBC modeling. Moreover, thin films of adhesives on interfaces are considered by introducing interfacial conductance. In the end, several examples are presented.

Preparation and characterization of long carbon chain based polyacrylate latexes and their pressure sensitive adhesive application

Aqueous emulsion homo- and co-polymerization of lauryl methacrylate (LMA), a strong hydrophobic monomer with long carbon chain, is quite challenging. In this study, a long carbon chain emulsifier N-390 was used as the primary emulsifier to facilitate the emulsion copolymerization of LMA with other acrylate monomers through the mutual hydrophobic interaction between N-390 and LMA, and ultimately polyacrylate latex pressure sensitive adhesives modified by LMA via pre-emulsified semi-continuous seeded emulsion polymerization process were synthesized. The effects of LMA on the resulting latex and PSA properties was comprehensively examined. Both FTIR and 1H NMR spectra indicated that LMA has been successfully introduced into copolymer chain with the aid of long carbon chain emulsifier N-390. The results also showed that the introduction of LMA will contribute to decrease in particle size and zeta potential, while increase viscosity and gel content of the acrylate PSA latex. Moreover, as the LMA content increased, the latex PSA films demonstrated gradual improvements in both water resistance and thermal stability. Finally, for the long carbon chains adhesive film, the shear strength was improved greatly while at the sacrifice of loop tack and peel strength, when compared to counterparts without LMA.

Damage behavior of carbon fiber electrothermal adhesive films after long-term electrothermal and hygrothermal aging treatment

Carbon fiber electrothermal adhesive films (CFEAFs) are the primary heating elements in wood-based electrothermal composites, and their durability is key to ensuring their long-term performance in high-temperature and high-humidity environments. In this work, the failure mechanism of CFEAFs was discussed by using long-term hygrothermal coupled treatments after electrothermal treatments at different power densities. The results showed that for CFEAFs which were only electrothermal treatment, increasing the power density produced more microscopic cracks on the surface, destroyed chemical bonds, and caused the thermal stability to decrease. The pyrolysis temperature decreased by 16.25 °C from 292.61 °C to 276.36 °C. Furthermore, under the coupled effects of electrothermal and hygrothermal treatments, the microscopic cracks on the CFEAFs became more obvious, and the surface roughness increased. The entry of water molecules further affected the chemical structure of the molecules inside CFEAFs, the maximum tensile strength of the whole material decreased by 65.6%, and the Tg decreased from 221.5 °C to 216.4 °C. These results provide a technical reference for using carbon fiber paper as the heating element of wood-based electrothermal composites to prevent electrical safety hazards during long-term cold-hot cycling.

Heat Dissipation Capability of Stagger-Stacked Double Data Rate Module

In this study, we introduce a stagger-stacked DDR module that comprises one IPD chip (top die) along with four memory chips initially. The steady-state thermal characteristics of this configuration were empirically assessed using a dedicated thermal test vehicle. The purpose of this research is to investigate the module’s junction temperature by adjusting four factors: the thermal conductivity of the molding plastic, chip thickness, chip misalignment length, and the thermal conductivity of the adhesive film. We observed that the junction temperature decreases with an increase in the chip staggered length. An improved orthogonal experimental method was utilized to achieve the optimal design of the module. The optimal junction temperature has decreased by 4.74% compared to the initial value. Additionally, three alternative packaging technologies—cantilever, pyramid, and a combination of cantilever and pyramid—were evaluated for the benchmarking of the thermal performance. Ultimately, the stagger-stacked package demonstrated a reduction in the junction temperature by 3.62%, 7.95%, and 5.63%, respectively, when compared to the three traditional stacked packages.

Effect of zirconia coating on Ti6Al4V at elevated substrate temperature on its wear, corrosion and hemocompatibility properties

Titanium and its alloys have been recognized as biocompatible materials since decades although these materials can at times show wear, corrosion and thrombosis leading to various health complications. Surface coating has been found to be one of the effective techniques to overcome this issue in-vitro as well as in-vivo. In this paper, thin film coating of zirconia (ZrO2) on Ti6Al4V is reported using pulsed laser deposition (PLD) technique at elevated substrate temperatures ranging from room temperature to 800 °C (TiZr800). The morphology, composition, wettability and average surface roughness of the samples were analyzed by scanning electron microscope, Raman spectrometer, water contact angle (WCA) and profilometer, respectively. Adhesion between film and substrate was qualified using Elcometer. The tribological studies were performed in ball-on-disc against ZrO2 counterpart, the electrochemical potential analysis was done in simulated body fluid to replicate body environment and the hemocompatibility test was evaluated on the basis of human whole blood adsorption and distribution of Red Blood Cells (RBCs) on the samples. The results revealed an increase in WCA and film adhesion with increased substrate temperature. At 800 °C, formation of zirconium carbide, a relatively harder material, was observed due to diffusion of substrate carbon into ZrO2 film, as confirmed by the Raman analysis. In comparison to pristine, TiZr800 sample showed a reduction in wear rate from 3.5 × 10−3 mm3/Nm to 1.1 × 10−3 mm3/Nm indicating improved resistance of the sample against abrasive wear. Further, drop in Icorr from 4.96 × 10−7 A/cm2 to 2.75 × 10−7 A/cm2 resulted in a 44 % increase in corrosion protective efficiency of the sample coated at 800 °C. Additionally, a 4.5 fold increase in RBC counts was observed on TiZr800 sample. Therefore, it is inferred that while ZrO2 coating can improve overall surface properties of Ti–6Al–4V, additional benefits can be obtained by performing PLD at higher substrate temperatures, more so when the temperature is such as to promote formation of ZrC in the coating.

Development of smart adhesive using lanthanide-doped phosphor and carboxymethyl cellulose-reinforced gum Arabic

Smart polymer glue with photoluminescence and water-repellent properties was developed. The luminescent adhesive continues emitting light for up to 120 min after turning the excitation source off. Nanoparticles of lanthanide strontium aluminum oxide (LSAO) (8–13 nm) were consistently immobilized into carboxymethyl cellulose-reinforced gum Arabic (CMC/GA) adhesive. Using various concentrations of LSAO, the generated adhesives showed emission intensity at 519 nm and an excitation band at 365 nm. Depending on LSAO content, both of afterglow and fluorescence emission were monitored. Photochromism was detected as the transparent adhesive film changes color to green under ultraviolet irradiation. A greenish-yellow lightening in a darkened place was also observed. The nanocomposite resistance to scratches and hydrophobicity were found to enhance as the LSAO content was increased in the carboxymethyl cellulose-reinforced gum Arabic matrix. The LSAO@CMC/GA nanocomposite showed high durability and photostability. The present strategy proved the viability of a potential mass production toward photoluminescent adhesives for various smart applications, such as smart packaging, anti-counterfeiting printing, smart windows, and safety signs.