RHEOLOGY AND PHYSICAL-PROPERTIES OF TERNARY BLENDS CONTAINING A THERMOTROPIC LIQUID-CRYSTALLINE COPOLYESTER

被引：16

作者：

HONG, SM ^{[1
]}

KIM, BC ^{[1
]}

机构：

[1] KOREA INST SCI & TECHNOL, DIV POLYMER SCI & ENGN, SEOUL 130650, SOUTH KOREA

来源：

POLYMER ENGINEERING AND SCIENCE | 1994年 / 34卷 / 21期

关键词：

D O I：

10.1002/pen.760342105

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Ternary blends of polyarylate (PAR) U-Polymer 100, thermotropic liquid crystalline copolyester (LCP) Vectra A950, and a block copolyesterether Hytrel 7246 were investigated in terms of theological properties, morphology, and mechanical properties. The PAR/Hytrel blend exhibited melting point depression and gave a unique single T-g over the entire range of blend compositions. Addition of Hytrel to the PAR/LCP blend decreased both dynamic viscosity and storage modulus over the normal processing temperature range. Further, it notably reduced the voids between the LCP domains and the matrix, and improved the mechanical properties. The optimum usage level of Hytrel proved to be 2 phr.

引用

页码：1605 / 1612

页数：8

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