Melt stabilization of wet polyamide 6

被引：15

作者：

La Mantia, FP ^{[1
]}

Scaffaro, R ^{[1
]}

机构：

[1] Univ Palermo, Dipartimento Ingn Chim Proc & Mat, I-90128 Palermo, Italy

来源：

POLYMER DEGRADATION AND STABILITY | 2002年 / 75卷 / 03期

关键词：

melt stabilization; polyamide;

D O I：

10.1016/S0141-3910(01)00250-6

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Melt processing of polycondensate polymers must be carried out after careful drying in order to avoid any hydrolytic chain scission caused by the presence of water or other small molecules. In this work, the effect of two different antioxidants on the processing and flow properties of a polyamide 6 sample not dried before processing operations has been studied. One of these stabilizers seems to protect the wet polymer from hydrolytic chain scission. This action has been interpreted considering that the stabilizer hydrolyses instead of the polyamide macromolecules. (C) 2002 Published by Elsevier Science Ltd.

引用

页码：473 / 477

页数：5