Tensile properties of thermoplastic starch-PVB blends

被引：16
|
作者：
Sita, C.
Burns, M.
Haessler, R.
Focke, W. W.
机构：
[1] Univ Pretoria, Dept Chem Engn, Inst Appl Mat, ZA-0001 Pretoria, South Africa
[2] Leibniz Inst Polymer Res Dresden, D-01069 Dresden, Germany
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2006年 / 101卷 / 03期
关键词：
starch; polyvinyl butyral; polymer blends; recycling; mechanical properties;
D O I：
10.1002/app.23512
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Blends of thermoplastic starch and recycled polyvinylbutyral from automotive windscreens were investigated. Mechanically compatible blends are formed at low to intermediate starch content. However, scanning electron microscopy and dynamic-mechanical analysis revealed a phase-separated nature for all blend compositions investigated. Tensile properties are negatively affected by aging in a high humidity environment and they deteriorate rapidly when the samples are soaked in water. Synergistic property enhancement was observed for a compound containing 22% thermoplastic starch. It features a higher tensile strength, shows better water resistance, and is significantly less affected by aging. (c) 2006 Wiley Periodicals, Inc.
引用
收藏
页码：1751 / 1755
页数：5
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