合成材料老化与应用2016，Vol.45Issue(5)：5-9,5.
不同抗氧体系对高温热氧老化后PP-R管材料熔融指数的影响
The Effects of Different Antioxidants on the Melting Flow Index of PP-R Pipe Materials after High-temperature Thermal Oxidation
摘要
Abstract
PP-R pipe materials were modified with different antioxidants and the effects of primary antioxidants, auxiliary antioxidants and compound antioxidants on the melt index of PP-R pipe materials were investigated. It has been found after 1200 h high temperature thermal-oxidative aging at 150℃ that the addition of antioxidants can ef-fectively improve the anti-oxidation properties of PP-R,and the Melt Flow Index ( MFI) of PP-R without antioxida-nts dramatically increased by 32. 7%,but that of the PP-R modified with compound antioxidants retained within 8%. Meanwhile,masterbatch addition showed a far better effect than direct powder addition.关键词
聚丙烯/热氧老化/熔融指数/管材Key words
polypropylene/thermal oxidation aging/melting flow index( MFI)/pipe materials分类
化学化工引用本文复制引用
王飞,雷祖碧,王浩江..不同抗氧体系对高温热氧老化后PP-R管材料熔融指数的影响[J].合成材料老化与应用,2016,45(5):5-9,5.基金项目
广州市产学研协同创新重大专项(项目编号:201601040105) （项目编号:201601040105）
