受阻胺光稳定剂与紫外吸收剂协同改进GPPS树脂抗紫外光老化性能研究  

Study on Synergistic Improvement of UV Aging Resistance of GPPSResin by Hindered Amine Light Stabilizers and UV Absorbers

作　　者：计伟[1,2] 许佳 申海燕[1,2] 张冰[1,2] Ji Wei;Xu Jia;Shen Haiyan;Zhang Bing(Research Institute of CNPC Dushanzi Petrochemical Branch,Karamay,Xinjiang,833699;Xinjiang Laboratory of Rubber-Plastic Materials,Karamay,Xinjiang,833699;Rubber Department of CNPC Dushanzi Petrochemical Branch,Karamay,Xinjiang,833699)

机构地区：[1]中国石油天然气股份有限公司独山子石化分公司研究院,新疆克拉玛依833699 [2]新疆橡塑材料实验室,新疆克拉玛依833699 [3]中国石油天然气股份有限公司独山子石化分公司橡胶部,新疆克拉玛依833699

出　　处：《现代塑料加工应用》2024年第1期19-22,共4页Modern Plastics Processing and Applications

摘　　要：采用黄度指数仪、激光扫描共聚焦显微镜(CLSM)和透光率雾度测定仪等研究了2种紫外光吸收剂(UV-A、UV-B)与受阻胺光稳定剂(HALS)协同使用对通用级聚苯乙烯(GPPS)树脂抗紫外光老化性能的影响。结果表明:加入HALS,UV-A,UV-B均可有效抑制GPPS树脂因紫外光老化作用而发生降解。在紫外光环境下,紫外光吸收剂(UV-A,UV-B)对样品抗紫外老化性能的提升效果均优于HALS,其中,UV-A最优。HALS与2种紫外光吸收剂(UV-A,UV-B)复配时均表现出良好的抗紫外光老化协同作用。The synergistic effects of two UV absorbers(UV-A,UV-B)and hindered amine light stabilizers(HALS)on UV aging resistance of general purpose polystyrene(GPPS)resin were studied using a yellowing index meter,laser scanning confocal microscope(CLSM)and transmittance haze analyzer.The results show that the addition of HALS,UV-A,UV-B can effectively inhibit the degradation of GPPS resin due to UV aging.Under UV light conditions,UV absorbers(UV-A,UV-B)have a better effect on improving the anti UV aging performance of the sample than HALS,with UV-A being the optimal.When HALS is combined with two types of UV absorbers(UV-A,UV-B),they all present a good synergistic effect in resisting UV aging.

关 键 词：通用级聚苯乙烯树脂 受阻胺光稳定剂 紫外光老化 黄色指数 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]