文献类型：期刊文献

中文题名：苯并呋喃酮三元复合抗氧体系在PP中的抗氧化性能研究

英文题名：Antioxygenation Performance of Benzofuranone Ternary Composite Antioxidant on PP

作者：侯松涛[1];辛忠[1];孟鑫[1];石尧麒[1]

机构：[1]华东理工大学化学工程联合国家重点实验室,上海200237

年份：2008

卷号：36

期号：6

起止页码：65

中文期刊名：塑料工业

外文期刊名：China Plastics Industry

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：2005年中国石油化工集团股份有限公司资助项目(205100)

语种：中文

中文关键词：苯并呋喃酮;热稳定性;聚丙烯;熔体质量流动速率;氧化开始时间

外文关键词：Benzofuranone; Thermal Stability; PP; Melt Flow Rate; Oxidation Onset Temperature

摘要：采用多次挤出的方法对自制的四种不同结构苯并呋喃酮与受阻酚及亚磷酸酯的三元复配稳定体系在聚丙烯(PP)中的稳定化作用进行了研究,并与商业化产品Irganox HP-2225进行了比较。结果表明,含5-叔丁基-7-甲基-3-(3-羟基苯基)-3-氢-苯并呋喃-2-酮(PHBF2)的复配体系配方的多次挤出之后的熔体质量流动速率(MFR)最小,其余依次为5-叔丁基-7-甲基-3-(3-甲氧基苯基)-3-氢-苯并呋喃-2-酮(ANBF2)、5-叔丁基-7-甲基-3-(3-甲基苯基)-3-氢-苯并呋喃-2-酮(TBF2)、5,7-二叔丁基-3-(3,4-二甲基苯基)-3-氢-苯并呋喃-2-酮(OXBF1),这四种复配的抗氧剂的无氧稳定化均优于Irganox HP-2225。同时,由DSC测得的氧化开始温度(OOT)所表征的含氧条件下的稳定化效果差别不大,这表明在含氧条件下起主要热氧稳定化作用的是其中的共同组成部分-受阻酚及亚磷酸酯。而从造粒样品的热台红外(FTIR)测试得知:PP挤出加工过程中的高温剪切是导致PP断链降解的主要原因,单纯的热降解是一个很缓慢的过程。
Four self-made antioxidant composite systems with different structure benzofuranone-phenol-phosphorus derivant in PP were studied by means of multiple extrusions, and compared with commercial product Irganox HP-2225. The results showed the melt flow index （MFR） of PP compounded with 5-tert-butyl-7-methyl-（3-hydroxyphenyl）-3H-benzofuran-2-one （PHBF2）/phenol/phosphorusis was the smallest after multiple extrusion, the others increasing in order： 5-tert-butyl-7-methyl - （3-meth-oxyphenyl）-3H-benzofura-2-one （ANBF2）/phenol/phosphorus, 5,7-di-tert-butyl-methyl- （ 3,4-dimethylphenyl ）-3H-benzofuran-2-one （ OXBF1 ）/phenol/phosphorus, 5-tertbutyl-7-methyl-（3-methylphenyl）-3H-benzofuran-2-one （TBF2）/phenol/phosphorus. The stabiliza-tions of all of the four composite antioxidant systems were better than that of Irganox HP-2225 in no oxygen environment. The result of DSC showed the oxidation onset temperature （OOT） of PP stabilized by different composites of anticxidants did not have much difference, which meant in rich oxygen environment the addition of phenol1010/phosphorus168 was much more important in increasing the thermal stability of PP. FTIR indicated high temperature shearing was the main reason for the degradation in extrusion processing of PP, and pure thermal degradation was a very slow course.