中国塑料2024，Vol.38Issue(8)：20-25,6.DOI:10.19491/j.issn.1001-9278.2024.08.004
亚磷酸酯P-EPQ与受阻酚在聚丙烯中的协同抗氧作用研究
Synergistic antioxidant effect of phosphonite P-EPQ and hindered phenol in polypropylene
邵豪锋 1焦隆杰 1公维光 2孟鑫1
作者信息
- 1. 华东理工大学化工学院产品工程系,上海市多相结构材料化学工程重点实验室,上海 200237
- 2. 华东理工大学体育新材料研发中心,上海 200237
- 折叠
摘要
Abstract
Hydrogen peroxide clearance experiments and thermogravimetric analysis were conducted to compare the anti-oxidant activity and thermal stability of tetrakis(2,4-di-tert-butylphenyl)4,4′-biphenylene diphosphonate(Hostanox P-EPQ)and tris(2,4-di-tert-butylphenyl)phosphite(Irgafos 168).The results demonstrated that due to its higher phos-phorus content and unique P—C bond in the structure,P-EPQ exhibited superior antioxidant performance and thermal stability.Furthermore,hindered phenolic antioxidants Irganox 1010 and Irganox 1076 were selected to be compounded with P-EPQ to investigate their synergistic antioxidant effects in isotactic polypropylene(iPP).The comparison of chang-es in melt volume flow rate(MVR)and yellowing index(YI)during multiple extrusion,as well as the oxidation induc-tion period(OIT)in oxygen atmosphere of iPP stabilized by compound antioxidants indicated that the combination of an-tioxidant 1010 and P-EPQ exhibits a significant synergistic effect.When the mass ratio of 1010 to P-EPQ was 6/4,the stabilized iPP had the optimal overall stability performance.At this stage,the MVR and YI of antioxidant-modified sam-ple after the fifth extrusion were only 19.8%and 79.9%of pure iPP,while the OIT at 180℃significantly increased from 0.8 min to 74.8 min.关键词
亚磷酸酯/抗氧化性能/聚丙烯/复配体系/协同效应Key words
phosphite/antioxidative performance/polypropylene/compound system/synergistic effect分类
化学化工引用本文复制引用
邵豪锋,焦隆杰,公维光,孟鑫..亚磷酸酯P-EPQ与受阻酚在聚丙烯中的协同抗氧作用研究[J].中国塑料,2024,38(8):20-25,6.
