中国塑料2017，Vol.31Issue(5)：78-83,6.DOI:10.19491./j.issn.1001-9278.2017.05.015
不同抗氧剂体系对聚丙烯热氧光老化的稳定作用
Stabilization of PP Against Thermal-and Photo-oxidation in Different Antioxidant Systems
摘要
Abstract
To impart a long-term antioxidant capability to polypropylene (PP),the hindered phenol antioxidants and hindered amine light stabilizers were selected as anti-aging agents to prepared the aging resistant PP.The rheological and mechanical properties of the aging-resistant PP were evaluated,and the effects of antioxidants and light stabilizers on their aging properties were investigated.The results indicated that the hindered phenol antioxidants led to an enhanced antioxidation capability for PP parts in an order of Irganox 1076＞Irganox 3114＞Irganox 1330＞Irganox 1010.A combination of Irganox 1076 and Chimassorb 944 could generate a long-term antioxidant effect on PP,the retention rates for elongation at break of PP were 75.9 ％ and 52.8 ％ after thermal oxidative aging for 72 h and 144 h,respectively.The retention rates for shear viscosity were 89.9 ％ and 74.1 ％ at the screw rotation rate of 1 r/min.关键词
聚丙烯/抗氧剂/光稳定剂/热氧光老化Key words
polypropylene/antioxidant/light stabilizer/thermal-and photo-oxidation aging分类
化学化工引用本文复制引用
热依扎·别坎,马俊红,倪玲贵,阿山卡德尔·居马卡德尔,买买提江·依米提..不同抗氧剂体系对聚丙烯热氧光老化的稳定作用[J].中国塑料,2017,31(5):78-83,6.基金项目
国家自然科学基金项目(21474082,21364014) （21474082,21364014）
