DYNAMIC-MECHANICAL THERMAL-ANALYSIS OF POLYAMIDE 6/THERMOPLASTIC POLYURETHANE BLENDS

被引：15
|
作者：
HAPONIUK, JT
机构：
[1] Faculty of Chemistry, Technical University of Gdańsk, Gdańsk
来源：
JOURNAL OF THERMAL ANALYSIS | 1995年 / 43卷 / 01期
关键词：
DMTA; DSC; POLYAMIDE; 6; THERMOPLASTIC POLYURETHANE BLENDS;
D O I：
10.1007/BF02635971
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Blends obtained from polyamide 6 and polyester or polyether polyurethanes were investigated by means of DMTA. The blends were prepared by compounding in a twin-screw Brabender - Plasticorder. Changes in composition did not influence the glass temperature of the amorphous fraction of the polyamide, but also no distinct transition for separated polyurethane soft segment was visible. Therefore the blends seem to be multiphase systems, where the elastomeric polyurethane phase is dispersed in a continuous polyamide phase. From changes in the beta relaxation region of the polyamide better miscibility of polyester polyurethanes comparing to polyether polyurethanes was explained by hydrogen bonding in the common amorphous phase.
引用
收藏
页码：91 / 101
页数：11
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