中国塑料2025，Vol.39Issue(6)：1-5,5.DOI:10.19491/j.issn.1001-9278.2025.06.001
基于马来酸酐苯乙烯交替共聚物的耐候聚丙烯的制备及机理研究
Preparation and mechanism of weather-resistant polypropylene based on maleic anhydride-styrene alternate copolymer
摘要
Abstract
This study investigates the use of maleic anhydride-styrene alternate copolymer(MSL)to develop weathering-resistant polypropylene(PP).The relative molecular weight,mechanical properties,and yellowing index of MSL-modi-fied PP were evaluated before and after UV-accelerated aging.The results indicated that at 0.1 wt%MSL,the material retained mechanical properties post-aging equivalent to those modified with commercial hindered amine light stabilizers(HALS).The MSL particles(≈400 nm in size)achieved homogeneous dispersion within the PP matrix.UV light was reflected while absorbing and re-emitting low-energy blue light,synergistically reducing UV-induced degradation.Even minimal MSL loading significantly enhanced the weatherability of the substrate,demonstrating its efficiency as a cost-ef-fective UV stabilizer.These results position MSL as a promising additive for durable PP applications in outdoor environ-ments.关键词
马来酸酐苯乙烯交替共聚物/聚丙烯/抗紫外老化Key words
maleic anhydride-styrene linear copolymer/polypropylene/ultraviolet light aging resistant分类
化学工程引用本文复制引用
赖金梅,郭照琰,茹越,戚桂村,蔡传伦,宋志海..基于马来酸酐苯乙烯交替共聚物的耐候聚丙烯的制备及机理研究[J].中国塑料,2025,39(6):1-5,5.基金项目
中国石油化工股份有限公司资助项目:茂金属聚烯烃结构性能研究与加工成型技术开发(9-23ZS0434) （9-23ZS0434）
