Power ultrasound effects for in situ compatibilization of polymer-clay nanocomposites

被引：47
|
作者：
Ryu, JG
Park, SW
Kim, H
Lee, JW
机构：
[1] Sogang Univ, Dept Chem Engn, Seoul 121742, South Korea
[2] Dankook Univ, Dept Chem Engn, Seoul 140714, South Korea
来源：
MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2004年 / 24卷 / 1-2期
关键词：
ultrasonic wave; polymer-clay nanocomposites; exfoliation;
D O I：
10.1016/j.msec.2003.09.057
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Polymer-clay nanocomposites of various concentrations were prepared by ultrasonically assisted polymerization and melt mixing processes. The sonication process using power ultrasonic wave was employed to enhance nano-scale dispersion during melt mixing of monomer, polymer and organically modified clay. According to the unique mode of power ultrasound wave, we expected enhanced breakup of layered silicate bundle and further reduction in the size of dispersed phase with better homogeneity compared to the in situ polymerization. The optimum conditions to perform stable exfoliated nanocomposites were studied by various compositions and conditions. Dispersion characteristics and morphology of the nanocomposites were verified by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Rheological behaviors were measured under dynamic frequency sweep mode using Rheometric science ARES. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：285 / 288
页数：4
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