PC透明件表面Silicone/TiO_(2)一维光子晶体紫外防护膜层研究  

Study on UV-reflecting Silicone/TiO_(2) One-dimensional Photonic Crystal Films for Photoprotection of Transparent Polycarbonte Parts

作　　者：韩健[1] 吕艳 席圣杰 张军利[1] 祝林 袁旗 刘春太[1] 申长雨[1] HAN Jian;LYU Yan;XI Shengjie;ZHANG Junli;ZHU Lin;YUAN Qi;LIU Chuntai;SHEN Changyu(National Engineering Research Center for Advanced Polymer Processing Technology,Zhengzhou University,Zhengzhou 450000,China)

机构地区：[1]郑州大学橡塑模具国家工程研究中心,郑州450000

出　　处：《载人航天》2025年第2期197-201,共5页Manned Spaceflight

基　　金：国家自然科学基金项目(52172161);河南省自然科学基金项目(232300421132)。

摘　　要：为提升PC透明件的抗辐照性能,选用柔韧性有机硅为低折射率材料,二氧化钛(TiO_(2))为高折射率材料,结合溶胶凝胶法和旋涂法,在PC表面成功制备了表面无裂纹的一维光子晶体纳米多层膜。通过调节溶胶浓度及旋涂速度,4周期Silicone/TiO_(2)1DPhC/PC在紫外波段(波长328 nm处)反射率达到86%,同时在可见光区的平均透过率达到85%以上。经胶带剥离和摩擦测试后,Silicone/TiO_(2)1DPhC/PC表现出良好的耐刮擦性及力学稳定性。人工加速紫外老化实验表明,Silicone/TiO_(2)一维光子晶体紫外反射膜层可以为PC基材提供有效的紫外辐照防护。To improve the anti-ultraviolet(UV)irradiation performance of polycarbonate(PC)parts,flexible silicone and titanium dioxide(TiO_(2))were employed as low and high refractive index material,respectively,to fabricate crack-free one-dimensional photonic crystal(1DPhC)multilayer films on polycarbonate(PC)using a sol-gel method combined with spin coating.The sol concentration and spin coating speed were optimized,resulting in a 1DPhC/PC with four periods of silicone/TiO_(2) achieving an 86% reflectance in the ultraviolet(UV)spectrum at a wavelength of 328 nm and an average transmittance exceeding 85% in the visible range.Moreover,the silicone/TiO_(2)1DPhC/PC demonstrated good scratch resistance and mechanical stability,as evidenced by tape peeling and friction test.Artificial accelerated UV aging test results indicated that the UV reflecting silicone/TiO_(2)1DPhC film can provide effective photoprotection for the PC substrate.

关 键 词：聚碳酸酯 紫外防护 一维光子晶体 多层膜 有机硅 

分 类 号：TB383[一般工业技术—材料科学与工程]