Morphology and Mechanical Properties of Polyurethane/Organoclay Nanocomposites

被引：0
|
作者：
Park, Kyu-Nam [1 ]
Yoon, Kwan Han [1 ]
Bang, Dae-Suk [1 ]
机构：
[1] Kumoh Natl Inst Technol, Dept Polymer Sci & Engn, Gyeongbuk 730701, Gumi, South Korea
来源：
ELASTOMERS AND COMPOSITES | 2007年 / 42卷 / 04期
关键词：
polyurethane; organoclay; nanocomposites; ultrasonication; mechanical properties;
D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Polyurethane (PU) was prepared with the compositions of polytetramethylene glycol (PTMG) having two different molecular weight (250, 1000 g/mol). The optimum composition of PTMG 250/1000 was 60/40 based on the mechanical properties. PU/organoclay nanocomposites were prepared with several kinds of organoclay. The mechanical properties of nanocomposite prepared with 93A were considerable. The improvement in tensile strength and modulus for PU/organoclay nanocomposite with the application of ultrasound compared to the PU/organoclay nanocomposite without the application of ultrasound was factors of 1.2, and hardness (shore A type) increased from 90 to 95. The difference in thermal degradation was not observed. The results of transmission electron micrographs and X-ray measurements suggest that the intercalated organoclay in PU matrix was observed.
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页码：224 / 231
页数：8
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