γ辐照下HALS与抗氧剂在PP中的并用效应及机理研究 Ⅰ.γ辐照下HALS与抗氧剂在PP中的并用效应  

THE COMBINATION EFFECT AND MECHANISM OF HALS WITH ANTIOXIDANTS ON THE RADIATION RESISTANCE OF PP Ⅰ. THE COMBINATION EFFECT OF HALS WITH ANTIOXIDANTS ON THE RADIATION RESISTANCE OF PP

作　　者：汪辉亮[1] 彭涛[1] 陈文琇[1] 

机构地区：[1]北京师范大学化学系,北京100875

出　　处：《高分子材料科学与工程》2002年第3期136-139,共4页Polymer Materials Science & Engineering

基　　金：北京师范大学青年科学基金资助项目

摘　　要：研究了受阻胺光稳定剂 PDS(4- (甲基丙烯酸 ) - 2 ,2 ,6 ,6 -四甲基哌啶醇酯和苯乙烯的共聚物 )与几种类型抗氧剂在γ-辐射下在聚丙烯中的并用效应。实验发现 ,PDS与受阻酚抗氧剂 Irganox 10 76、Irganox 10 10并用时表现出明显的协同效应 ,而 PDS和 Irganox 10 98并用时并未发生明显的协同效应。PDS与含磷抗氧剂 Irgafos 16 8、含硫抗氧剂 Irganox PS80 2以及芳香胺类抗氧剂 4 0 10并用均表现出一定的协同效应。 PDS与 4 0 10并用的效果比与其它类型抗氧剂的并用效果都好 ,PDS和混合抗氧剂的并用效果不如和单一抗氧剂的并用效果 。The combination effect of hindered amine light stabilizers(HALS) PDS (copolymer of 2,2,6,6 tetramethyl 4 piperidinyl methacrylate(TMPM) with styrene) with several kinds of antioxidant in polypropylene under γ irradiation was studied in this article. Significant synergism is observed when PDS and hindered phenol antioxidants Irganox 1076 or Irganox 1010 are used together, while the combination of PDS and Irganox 1098 shows no significant synergism. The combination of PDS with organophosphorous antioxidants Irgafos 168, sulfurbearing antioxidant Irganox PS 802 or aromatic amine antioxidant 4010 shows synergism. The combination effect of HALS (PDS) with aromatic amine antioxidants 4010 is much better than HALS with other antioxidants. The combination effect of PDS with blended antioxidants is not so good as that of PDS with single antioxidant, in some case, antagonistic effect is oberved.

关 键 词：Γ辐照 HALS 抗氧剂 PP 并用效应 机理 研究 受阻胺光稳定剂 聚丙烯 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业] TQ320.4