Polymer/layered clay nanocomposites: 2 polyurethane nanocomposites

被引：251
|
作者：
Yao, KJ
Song, M [1 ]
Hourston, DJ
Luo, DZ
机构：
[1] Univ Loughborough, Inst Polymer Technol & Mat Engn, Loughborough LE11 3TU, Leics, England
[2] Hyperlast Ltd, Derby SK22 1BR, England
来源：
POLYMER | 2002年 / 43卷 / 03期
关键词：
polyurethane; nanocomposites; clay;
D O I：
10.1016/S0032-3861(01)00650-4
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A kind of novel polyurethane/Na+-montmorillonite nanocomposites has been synthesised using modified 4,4'-di-phenymethylate diisocyanate (M-MDI), modified polyether polyol (MPP) and Na+-montmorillonite (layered clay). Here, MPP was used as a swelling agent to treat the layered clay. Experimental results indicated that with increasing the amount of layered clay, the strength and strain-at-break increased. The storage modulus below the glass transition temperature of the soft segments in the polyurethane was increased by more than 350%. With increased loading of layered clay, the thermal conductivity decreased slightly rather than increased. This finding will provide valuable information for polyurethane industry. (C) 2001 Published by Elsevier Science Ltd.
引用
收藏
页码：1017 / 1020
页数：4
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