INFLUENCE OF THERMAL-DEGRADATION ON TENSILE-STRENGTH AND YOUNGS MODULUS OF POLY(HYDROXYBUTYRATE)

被引：35

作者：

HOFFMANN, A

KREUZBERGER, S

HINRICHSEN, G

机构：

[1] Institute of Nonmetallic Materials, Polymer Physics, Technical University of Berlin, Berlin, D-10587

来源：

POLYMER BULLETIN | 1994年 / 33卷 / 03期

关键词：

D O I：

10.1007/BF00314274

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Microbially produced poly(3-hydroxybutyrate) (P(3HB)) and a copolymer were investigated by measuring tensile strength, Young's modulus and molar mass after different periods of thermal treatment at temperatures slightly above their melting temperatures in order to describe the changes of molecular and mechanical properties. The tensile strength turns out to be strongly influenced by time and temperature of heat treatment. After a heat treatment for 10 min at 190 degrees-C the tensile strength drops to 30% of its initial value.

引用

页码：355 / 359

页数：5

共 8 条

[1] HYDROXYAPATITE REINFORCED POLYETHYLENE - A MECHANICALLY COMPATIBLE IMPLANT MATERIAL FOR BONE-REPLACEMENT [J].