［Objective］To improve the problem of reduced yellowing resistance of coatings causedby the introduction of tertiary amine hydrogen donors/Norrish type II photoinitiators.［Methods］A tertiary amine hydrogen donor with self-migratory capability was designed and synthesized. This donor， in combination with benzophenone and 2-hydroxy-2-methyl-1-phenyl-1-propanone，formed an initiation system，which was employed to prepare a series of UV-cured coatings. The migration ability， along with its effects on the polymerization rate，degree of cure，oxygen inhibition resistance and yellowing resistance of the coatings，was systematically investigated.［Results］A fluorine-containing tertiary amine hydrogen donor，capable of spontaneously migrating to the coating surface，was successfully synthesized. Compared with UV-cured coatings containing 0. 5% diethylamine，the coating with 0. 1% migratory tertiary amine hydrogen donor achieved a double bond conversion rate of50% at a depth of 70 μm and a 10% increase in final double bond conversion rate，significantly alleviating the oxygen inhibition. After 150 h of accelerated UV aging，the color difference of the coating decreased from 11. 43 to 7. 10. The reduction in the amount of tertiary amine hydrogen donoreffectively enhanced the yellowing resistance of the coating.［Conclusion］The migratory hydrogen donors，leveraging their inherent migration capabilities，could effectively suppress interfacial oxygeninhibition and concurrently enhance the yellowing resistance of coatings at low dosages.
［Objective］To prepare stabilized hydroxyacrylic emulsions with high solids and high hydroxyl content.［Methods］Using butyl acrylate（BA）and isooctyl acrylate（EHA）as soft monomers， styrene（St） and methyl methacrylate（MMA） as hard monomers，and hydroxyethyl methacrylate（HEMA）as a functional monomer，we focused on the effects of oil-to-water ratio and emulsifier dosageon the stability of the pre-emulsions through the reactive free-radical emulsion polymerization methodand further explored the effects of the proportion of hydroxyl monomer in the core-shell layer on thegelation rate of the emulsion.［Results］The emulsifier dosage was 1. 5% of the total monomer mass， and the mass ratio of anionic emulsifier to nonionic emulsifier was 2∶1. The stability of the pre-emulsion was excellent when the oil-to-water ratio was 2∶1，and no delamination was observed when it was left to stand for 24 h. When the core-to-shell mass ratio was 1∶1 and the mass ratio of hydroxyl monomer distributed in the core layer to that in the shell layer was 1∶1（a hydroxyl monomer content of approximately 32. 1% in both layers）， the polymerization gel rate could be reduced to 0. 048%.［Conclusion］A hydroxy acrylic emulsion with a hydroxyl content of 4. 2% and a solid content of 45% was prepared，and the prepared paint film had a hardness of 2H，a gloss of 85. 7 at 20°，a gloss of 92. 9 at 60°，a short drying time，and good water resistance.
［Objective］In order to improve the optical transmittance and antifogging property of glass.［Methods］On the basis of analyzing the influence of thickness on optical properties by usingTFCalc optical film design software，SiO2 antireflection films were prepared on BK7 glass by an acid-catalyzed sol-gel method. The structure and surface morphology of the SiO2 film were characterized by X-ray diffraction（XRD）， scanning electron microscope（SEM） and white light interferometer. The transmittance spectra of SiO2 films with different incident angles（0°，15°，30°）were tested using a UV-visible-near-infrared spectrophotometer. The contact angle was measured and its variation with solid-liquid contact time was recorded. The wettability of the film was analyzed and the antifogging propertyof SiO2 film was evaluated through a self-made anti-fog testing device.［Results］The results indicated that SiO2 prepared by acid catalyzed sol-gel method was amorphous phase. The SiO2 films prepared on BK7 glass was uniform and crack-free. Compared to uncoated glass，the surface roughness of the SiO2-coated glass was significantly higher. All the SiO2 films prepared on BK7 glass had antireflection property. Among them，the average transmittance of SiO2 film prepared on BK7 glass with the pullingspeed of 3 cm/min was 93. 39% at the wavelength of 380-1 100 nm，which was 1. 62% higher than that of the uncoated glass. When the incident angle increased from 0° to 30°，the transmittances of BK7 glass with and without SiO2 film were decreased. However，at an incident angle of 30°，the SiO2 film prepared on BK7 glass with the pulling speed of 3 cm/min exhibited an average transmittance of 90. 89%，which was 2. 42% higher than that of the uncoated glass. The water contact angle of BK7 and SiO2-coated BK7 glass were about 47° and 3°，respectively，indicating that the SiO2 film had superhydrophilicity. Antifogging tests showed that the SiO2 film coated on BK7 glass had good antifogging performance.［Conclusion］All the results illustrated the SiO2 films prepared on glass byacid-catalyzed sol-gel method had both antireflection and antifogging properties.
［Objective］ In order to enhance the cross-linking density of light-curing acrylateresins and optimize their thermal stability，mechanical properties，and water resistance，a research study was conducted.［Methods］In this paper，epoxy acrylate prepolymers were synthesized usingglycidyl acrylate（GMA），methyl methacrylate（MMA），and butyl acrylate（BA） as raw materials. Subsequently，UV-curable unsaturated acrylate prepolymers（UEA1-UEA3） were prepared usingepoxy acrylate prepolymer precursors and acrylic acid（AA）as raw materials，and the correspondingcured films were prepared. The cured films were characterized by FT-IR， 1H MNR，DTG，DSC，DMA， and the cured films were tested for water absorption，water contact angle，and tensile properties.［Results］The results demonstrated the successful preparation of epoxy acrylate prepolymer andunsaturated acrylate prepolymer. The enhancement of crosslink density in UEA，attributable to the increase of GMA dosage and the introduction of unsaturated bonds，directly augmented the tensilestrength of the cured films without compromising their elongation at break. With the rise in crosslink density，a substantial enhancement in glass transition temperature was observed for the cured films.Furthermore，an upward trend was evident in the thermal decomposition temperature of the cured films.The thermal decomposition temperature of the cured film exhibited an upward trend，and the increase in crosslink density of the cured film significantly enhanced its surface hydrophobicity. When the massfraction of GMA was 29. 29%，UEA2 exhibited optimal comprehensive performance，circumvented the low-temperature decomposition caused by excessive cross-linking and internal defects，and possessed a stable cross-linking structure. The water contact angle was 82°，the water absorption rate was 1. 04%， the elongation at break was 6. 36%，the T5% was 265. 83 ℃，and the tensile strength reached 17. 37 MPa.［Conclusion］The crosslink density of the cured film，as a major factor affecting mechanical properties and thermal stability，can be controlled in this synthesis pathway.
［Objective］To prepare organic polysilazane（PSN）composite coatings with excellent high temperature resistance at lower curing temperatures.［Methods］By introducing silane coupling agent modified silicon carbide（SiC） particles as heat-resistant reinforcement phase，the reaction kinetics of PSN in the thermal crosslinking reaction process were investigated and gradient programmedtemperature curing process was developed to evaluate the curing efficiency and high temperatureresistance of PSN based composite coatings with different SiC addition amounts at lower curingtemperatures（100-200 ℃）.［Results］The PSN composite coatings were prepared using the curing process of 130 ℃/2 h，150 ℃/2 h，180 ℃/2 h，and 200 ℃/2 h，while the addition of modified SiC significantly improved the high temperature resistance of the PSN composite coating. Notably，the high temperature resistance of PSN composite coatings increase with the addition of modified SiC，among which the PSN composite coating with 5% modified SiC content has the best thermal stability，the maximum temperature tolerance of the coating exceeds 400 ℃ and there are no cracks or defects on thesurface after the heat treatment at 400 ℃.［Conclusion］The modified SiC reinforced PSN compositecoatings prepared by gradient programmed temperature curing process can significantly reduce thecuring temperature of PSN coatings while effectively improving their high temperature resistance limit.
［Objective］To address the issue of traditional coatings being prone to failure in human sweat environments，cathodic electrophoretic coatings with high resistance to artificial sweat wasprepared using acrylic resins.［Methods］By screening the types and amounts of acrylic monomers，the effects of curing agent dosage，neutralization degree，electrophoretic construction，and curing process parameters on coating performance were studied，a coating with excellent sweat corrosion resistance wasobtained. The structure of the product was characterized by Fourier transform infrared spectrometer（FT-IR）.［Results］The results indicated controlling the amount of monomer GMA in resin synthesis to be 11%-12%，the amount of MMA to be 25%-30%，the amount of IBOMA to be 12%-15%，the amount of other functional monomers，and the key influencing factors during the coating construction process，a coating system with excellent comprehensive performance was obtained，and the artificial sweat resistance was more than 96 hours，which was significantly better than similar products.［Conclusion］This product was applicated in surface protection for automotive interior components， sports equipment，and accessories such as eyewear and watches.
［Objective］The purpose of this study was to develop efficient antibacterial waterborneinterior wall coatings. By using self-made KH550 surface modified silver nanoparticles（AgNPs）as an antibacterial agent，a coatings product with excellent antibacterial properties was successfully prepared.［Methods］ Using silver nitrate aqueous solution as silver source，γ -aminopropyltriethoxysilane（KH550）as surface modifier，1，2-propylene glycol as solvent and reducing agent，KH550 surface modified silver nanoparticles（AgNPs） were prepared by solution chemical method. During the experiment，AgNPs were successfully synthesized using 1，2-propanediol as solvent and reducingagent，and 0. 1 mol/L silver nitrate aqueous solution as silver source. Subsequently，different proportions of AgNPs dispersion were added to the waterborne coatings，and the antibacterial coatings were cured by volatile solvents. The optical properties，chemical composition and morphology of AgNPswere characterized by ultraviolet-visible absorption spectroscopy（UV-Vis），X-ray photoelectron spectroscopy（XPS）and transmission electron microscopy（TEM），and the antibacterial properties of the coatings were systematically evaluated.［Results］ AgNPs exhibited excellent antibacterial properties against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus. When the addition amount of AgNPs dispersion reached 1. 05%，the antibacterial rate of the antibacterial coatings against Escherichia coli reached 100%，and the antibacterial rate against Staphylococcus aureus reached 99. 1%.［Conclusion］In this study，high-efficiency antibacterial waterborne interior wall coatings was successfully prepared by KH550 surface-modified AgNPS. The antibacterial performance was positively correlated with the amount of AgNPS added. The broad-spectrum antibacterial effect couldbe achieved at the addition amount of 1. 05%，which provided a feasible solution for the antibacterial functionalization of architectural coatings.
［Objective］To develop high-performance UV-curable coatings utilizing renewable resources，［Methods］soybean oil-based polyol（ESOR）was synthesized via the solvent-free ring-opening reaction of epoxidized soybean oil（ESO）with ricinoleic acid（RA）. A series of photoreactive epoxidized soybean oil-based polyurethane acrylate resins（ER-IH5，ER-IH7，and ER-IH9） were prepared by end-group modification of ESOR using the semi-addition product of isophoronediisocyanate and 2-hydroxyethyl acrylate. These resins served as the primary film-forming material toformulate UV-curable coatings. The effect of terminal double bond content on coating performance wassystematically investigated.［Results］As the results shown，with increasing double bond content in the photoreactive resins，the tensile strength，pencil hardness，gel content，and chemical resistance of the UV-cured coatings were significantly enhanced. And the ER-IH9 coating exhibited optimal performance：transmittance exceeding 95%，haze below 1%，tensile strength up to 26. 1 MPa，pencil hardness of 6H，adhesion grade of 0，gel content of 96. 5%，water absorption of only 0. 87%，and showed the lowest mass loss after immersion in acidic and alkaline media.［Conclusion］This UV-curable coating shows promising application in fields demanding high hardness and superior transparency.
［Objective］To address coal ash contamination on coal mine tunnel walls，a coal mine anti-stain varnish coating was developed by using silica sol-modified acrylic emulsion，revealingdifferences in contamination behavior between carbonaceous coal ash and conventional ash.［Methods］Based on the method A in GB/T 9780—2013 standard，a coal ash resistance evaluation protocol was established. The effects of the polymer glass transition temperature（Tg），interfacial hydrophilicity/hydrophobicity，and silica sol modification on coal ash resistance of emulsions were studied. Water contact angle meter and scanning electron microscope（SEM）were employed to analyzethe infiltration behavior and adhesion mechanisms of coal ash on organic coating，while SEM was used to observe the micro-nano structural characteristics formed by silica sol modification. Key performanceindicators such as water resistance，alkali resistance，and thermal storage stability of the anti-stain varnish were simultaneously tested.［Results］As the Tg of emulsion increased，the stain resistance of coating was significantly enhanced，carbonaceous coal ash exhibited compatibility with organic coating， resulting in increase of adhesion strength. Hydrophobic interfaces improved the stain stability bystrengthening intermolecular interactions with the coal ash，while the silica crystals generated by silicasol modification weaken the bonding strength between coating and coal ash through polar repulsion.［Conclusion］ Based on the multi-effect synergistic mechanism，the anti-stain varnish exhibited a reflectance coefficient decline rate below 5% post-contamination，significantly inhibit coal ash adsorption，and was suitable for long term protection of high coal ash polluted environments.
［Objective］ In order to further enhance the anti-blast performance of aerospace vehicles，［Methods］four types of anti-blast coatings were selected as research objects. The finiteelement simulation software was used to simulate the anti-detonation performance to determine the bestanti-detonation performance of the rigid polyurea system. On this basis，a new type of anti-blast coatings were developed by adjusting the n（—NH2）∶n（—NCO）ratio and adding functional fillers. The anti-blast performance of the anti-blast coating was verified through TNT flat explosion tests.［Results］The simulation and flat explosion test results showed that when the hard polyurea coatingthickness was 6 mm，the anti-blast performance was the best，with a protection effect of 31. 62%. On the basis of hard polyurea，when the n（—NH2）∶n（—NCO）ratio was 1∶1. 05 and the carbon nanotube addition amount was 1%，the anti-blast coating could achieve the best anti-blast performance，onlyrequiring a coating thickness of 4 mm，with a protection effect of 28. 24%，approaching the protection effect of the 6 mm thick hard polyurea coating.［Conclusion］The developed product not only meet theanti-blast performance requirements of aerospace vehicles but also reducing the coating thickness， achieving the lightweight requirements of anti-blast coatings aerospace vehicles.
［Objective］To improve the road performance of waterborne energy-saving luminescent pavement marking coating.［Methods］Using strontium aluminate long-acting luminescent powder as energy storage and luminescent material，an aqueous pavement marking coating with energy storage，luminescent function，and excellent road performance was developed. Performance testing systematically studied theinfluence of different emulsions，fillers，and coating thicknesses on film-forming performance. An orthogonal experimental design analyzed the influence of component dosages on film formation. Extremedifference analysis determined the impact size（order of influence） of each factor on specific performance and identified the optimal combination.［Results］The optimal composition comprised： silica-acrylic emulsion（43%）as the base material，calcium carbonate（14%）as filler，deionized water（19%），a uniform mixture of luminescent powder and titanium dioxide（7∶3 mass ratio，totaling 15%）and auxiliary raw materials（9%，including dispersants，film-forming additives，sodium methylcellulose，defoaming agents，leveling agents，propylene glycol，and drying agents）. Coating thickness was optimally controlled at 0. 310 mm for line marking performance with nonsticky-to-tyre drying time of 15 min，afterglow time of 12. 5 h，excitation stops for 10 min when the luminous brightness of 341. 55 mcd/m2.［Conclusion］ A waterborne energy-saving luminescent pavement marking coatingwas prepared，which could be further applied in urban roads，bridges，tunnels and other traffic facilities.
［Objective/Significance］ Silicate-based cultural relics hold significant historical， artistic，and scientific value，and their conservation is crucial for the transmission of cultural heritage.The use of silicone materials for the protection and reinforcement of silicate-based relics serves as adirect and effective method to mitigate deterioration and improve preservation conditions，demonstrating remarkable research and application value.［Analysis/Discussion/Progress］Based on the unique chemical structure and superior properties of silicone materials，this study elaborated on their protection and reinforcement mechanisms for silicate-based relics. It reviewed the research and application progress of siloxanes and their composites，silicone-modified acrylic resins，nanomaterials， epoxy resins，and biomimetic synthetic materials in the conservation of silicate-based relics. Additionally，it discussed existing challenges in practical research and applications，along with potential solutions.［Conclusion/Prospect］Silicone materials exhibit excellent compatibility with silicate substrates and leverage the synergistic advantages of multiple materials，making them an ideal choice for the protection and reinforcement of silicate-based relics. However，they still face challenges such as poor penetration，salt enrichment damage，and aging-induced failure. Future research should focus on developing highly targeted materials，exploring eco-friendly biomimetic synthesis approaches， and enhancing material permeability and interfacial stress resistance.
［Objective/Significance］This paper aims to comprehensively understand the currentresearch status of anti-skid coatings for decks，analyze existing problems，propose improvement suggestions and future development directions，and provide theoretical support and research ideas forthe development of novel high-performance anti-skid coatings.［Analysis/Discussion/Progress］This paper focuses on reviewing the research progress and application prospects of polymer-based andmetal-based anti-skid coatings for decks，both domestically and internationally. Anti-skid coatings for decks have attracted significant attention due to their excellent properties，including anti-skid performance，abrasive resistance，weather resistance，and corrosion resistance. Polymer-based coatingsoffer advantages such as good flexibility and ease of application，while metal-based coatings exhibithigher hardness and enhanced corrosion resistance. Based on the current development status of anti-skid coatings for decks，the paper analyzes the current research shortcomings of anti-skid coatings for decks，identifies deficiencies in the development of such coatings within China，and puts forward corresponding improvement suggestions and measures.［Conclusion/Prospect］This paper clarifies the key development directions for future research on deck anti-skid coating materials，that is，the transition towards novel anti-skid coatings characterized as environmentally friendly，durable，and highly functional. This will serve as a valuable reference for researchers in related fields and furtheradvance the technological development of anti-skid coatings for decks.
［Objective/Significance］Facing the global challenge of continuous increase of energy consumption，radiative cooling coating materials，as a zero-energy-consumption，environmentally friendly passive cooling technology，provide a feasible solution.［Analysis/Discussion/Progress］This paper systematically elaborates on the principles，material systems，and performance characteristics of radiative cooling technology. It clarifies that radiative cooling materials must possess high solar reflectance（≥92%）and high atmospheric window emissivity（≥92%），and provides a detailed analysis of the performance features of three key material systems—polymer-based materials，inorganic materials，and composite hybrid systems. Furthermore，it explores their practical applications across various fields，including construction（roofs，exterior walls and glass），energy（solar cells，energy storage and dew collection），electronic devices，transportation，textiles，and agriculture.［Conclusion/Prospect］ Research demonstrates that radiative cooling coating materials offer significant advantages in energyconservation and emission reduction，with promising potential for broader applications in the future， thereby providing important support for carbon neutrality goals.
