Effects of surface properties of colloidal silica particles on redispersibility and properties of acrylic-based polyurethane/silica composites

被引：94

作者：

Chen, GD

Zhou, SX

Gu, GX

Yang, HH

Wu, LM ^{[1
]}

机构：

[1] Fudan Univ, Dept Mat Sci, Adv Coatings Res Ctr, China Educ Minist, Shanghai 200433, Peoples R China

[2] Hubei Univ, Coll Chem & Mat Sci, Wuhan 430062, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2005年 / 281卷 / 02期

关键词：

colloidal silica; silane coupling agent; acrylic-based polyurethane; coats;

D O I：

10.1016/j.jcis.2004.08.100

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nanosilica particles with different surface properties were designed and prepared using colloidal silica particles and four different qualitative silane coupling agents (SCA), namely methyltriethoxysilane (MTES), octyltriethoxysilane (OTES), vinyltriethoxysilane (VTES) and methacryloxypropyltrimethoxysilane (MATMS), and further applied in acrylic resins and corresponding polyurethane coats by in situ polymerization. It was found that different qualitative SCA molecules had very different impacts on the redispersibility of nanosilica particles, the adsorbed acrylic polyol molecules, the viscosities of acrylic polyol/silica hybrid resins, and the properties of acrylic-based polyurethane/silica composites. (C) 2004 Elsevier Inc. All rights reserved.

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页码：339 / 350

页数：12

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