中国塑料 ›› 2008, Vol. 22 ›› Issue (07): 83-87 .DOI: 10.19491/j.issn.1001-9278.2008.07.017

• 助剂 • 上一篇    下一篇

苯并吠喃酮类复合抗氧剂在聚丙烯中的应用研究

侯松涛,蔡智,辛忠,孟鑫   

  1. 1.华东理工大学化学工程联合国家重点实验室,产品工程系,上海200237;2.中国石油化工股份有限公司九江分公司,江西九江332004
  • 收稿日期:2008-01-21 修回日期:1900-01-01 出版日期:2008-07-26 发布日期:2008-07-26

Application of Benzofuranone Complex Antioxidants in Polypropylene

HOU Song-tao,CAI Zhi,XIN Zhong,MENG Xin   

  1. I .State Key Laboratory of Chemical Reaction Engineering, Department of Product Engineering,East China University of Science and Technology, Shanghai 200237, China;2. SINOPEC; liangxi Oil Products Company, liujiang 332004,China
  • Received:2008-01-21 Revised:1900-01-01 Online:2008-07-26 Published:2008-07-26
  • Contact: XIN Zhong

摘要: 采用多次挤出的熔体流动速率和氧化诱导期(OIT)方法研究了4种不同结构苯并峡喃酮与抗氧剂1010及I68的三元复合抗氧体系对聚丙烯(PP)加工稳定性和热氧稳定性的影响。结果表明:在挤出温度为250℃; 添加浓度均为I g/kgPP的情况下,含5-叔丁基一7一甲基一3-( 4一甲氧基苯基)-3-氢一苯并峡喃-2-}I} ( ANBF2)的三元复合抗氧剂所稳定PP在5次挤出之后的熔体流动速率最小,具有最优的加工稳定性;同时(OIT值最大,体现出在含氧条件下最好的热稳定性。在保持ANBF2 /1010 /168三元复合抗氧体系中1010和I68的添加量不变情况下,降低了ANBF2的含量与工业化产品Irganox HP-2225比较,当ANBF2添加量仅为Irganox HP-I36添加量的l /3时,ANBF2 /1010 /168三元复合抗氧剂仍具有比Irganox HP-2225更优的加工稳定性和热氧稳定性。

关键词: 苯并峡喃酮, 聚丙烯, 复合抗氧剂, 熔体流动速率, 氧化诱导期

Abstract: Four different benzofuranone/1010/168 ternary complex antioxidants for polypropylene (PP) had been studied via comparing their melt flow rate after multiple extrusions and oxidation induction time (OIT).Aftcr 5 times of extrusions at 250℃,the PP sample containing 1%of 5一tcrt-butyl-7-methyl-(3-methoxyphenyl)-3H- benzofuran-2-one(ANBF2)/1010/168 system exhibited the smallest flow rate and the longest OIT, and thus the highest thermal stability.At the same loading of 1010 and 168,the stabilizing effect of八}BF2 was compared with Irganox HP-2225.Even when the loading of ANBF2 was one third that of HP-2225,the stabilizing effect of the former was still better than the latter.

Key words: benzofuranone, polypropylene, complex antioxidant, melt flow rate, oxidation induction time