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基于溶胶-凝胶法的高附着力有机硅防雾减反射涂层的制备及其性能研究

Study on preparation and properties of high adhesion silicone,antifogging and antireflective coating based on sol-gel method
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摘要 选用3-缩水甘油基氧基丙基三甲氧基硅烷(GPTMS)和N-[3-(三甲氧基硅基)丙基]乙二胺(NTMDA)作为原料,经环氧-氨基开环反应后得到含羟基有机桥连倍半硅氧烷前驱体GN.将GN与正硅酸乙酯(TEOS)按一定比例混合,在氨水催化条件下进行共水解缩聚得到有机硅溶胶,将溶胶沉积在基底上获得一系列有机硅减反射涂层,然后对所制备涂层进行不同温度热处理,得到附着力良好的减反射防雾涂层.重点研究GN含量对涂层微观结构、光学性能和附着力的影响以及热处理温度对涂层防雾性能和光学性能的影响规律.实验结果表明,GN具有“粘结”和“造孔”的作用.当V(GN)∶V(TEOS)为0.33∶1、处理温度为150℃时,涂层透过率不仅高达99.2%,而且具有良好的防雾效果,附着力达到0级. The hydroxy bridged-silsesquioxane GN was prepared by 3-glycidoxypropyl trimethoxysilane(GPTMS)and N-[3-(trimethoxysilyl)propyl]ethylenediamine(NTMDA)via epoxy amino ring-opening reaction.Then GN and tetraethoxysilane(TEOS)with a certain volume ratio proceeded co-hydrolysis-condensation reacting which was catalyzed by ammonia to prepare organosilicon sols.A series of organosilicon antireflective coatings were obtained by depositing the above sols on the substrates.By post-treatment of different temperatures,antifogging and antireflective coatings with enhanced adhesion were obtained.Furthermore,the effects of GN content on the microstructure,optical property and adhesion of the coatings and heat-treatment temperature on the optical property and antifogging property were mainly investigated.The results showed that GN played the dual roles of bonding and pore-forming.When V(GN)/V(TEOS)was 0.33∶1 and the post-treatment temperature was 150℃,the coatings not only performed good antireflective property with transmittance as high as 99.2%,but also exhibited antifogging property.Besides,the coatings adhesion level was 0 grade.
作者 张光华 杨晓梅 张策 姚孝伟 张万斌 ZHANG Guang-hua;YANG Xiao-mei;ZHANG Ce;YAO Xiao-wei;ZHANG Wan-bin(College of Chemistry and Chemical Engineering,Key Laboratory of Auxiliary Chemistry&Technology for Chemical Industry,Ministry of Education,Shaanxi University of Science&Technology,Xi′an 710021,China;Institute of Frontier Science and Technology Transfer,Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology,Shaanxi University of Science&Technology,Xi′an 710021,China)
出处 《陕西科技大学学报》 北大核心 2024年第4期78-85,共8页 Journal of Shaanxi University of Science & Technology
基金 国家自然科学基金项目(11904220,51803111) 陕西省轻化工助剂化学与技术协同创新中心开放课题(KFKT2022-10) 陕西科技大学教育部轻化工助剂化学与技术重点实验室开放基金项目(KFKT2022-10)。
关键词 防雾 减反射 有机桥连聚倍半硅氧烷 附着力 溶胶-凝胶 antifogging antireflective organic-bridged polysilsesquioxane adhesion sol-gel
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