Synthesis and characterization of well-dispersed polyurethane/CaCO3 nanocomposites

被引：51
作者：
Gao, Xiaoyan [1 ]
Zhou, Bing [1 ]
Guo, Yupeng [1 ]
Zhu, Yanchao [1 ]
Chen, Xue [1 ]
Zheng, Yunhui [1 ]
Gao, Wei [1 ]
Ma, Xiaoyu [1 ]
Wang, Zichen [1 ]
机构：
[1] Jilin Univ, Coll Chem, Changchun 130012, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2010年 / 371卷 / 1-3期
关键词：
Polyurethane; CaCO3; Phosphate ester; Dispersion; SILICATE NANOCOMPOSITES; MECHANICAL-PROPERTIES; ELASTOMERS; POLYPROPYLENE; ORIENTATION; COMPOSITES; STABILITY; FILMS;
D O I：
10.1016/j.colsurfa.2010.08.036
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：
Well-dispersed and long-term stable nano-CaCO3/polyol dispersions were prepared by a mechanochemical approach with the aid of poly (propylene glycol) phosphate ester (PPG-P). Polyurethane (PU)/CaCO3 nanocomposites were prepared by further in situ polymerization with 6 wt% nano-CaCO3. The microstructure and dispersion of nano-CaCO3 in the nanocomposites were investigated. It was found that well dispersion was obtained up to 6 wt% of the surface treated CaCO3 loading for PU/CaCO3 nanocomposite. The segmented structures of PU were not interfered by the presence of nano-CaCO3 in these nanocomposites as evidenced by Fourier transform infrared. Compared with the pure PU, a significant improvement in thermal stability was observed with the addition of 6 wt% of the surface treated CaCO3. The experimental results suggested that the properties of nanocomposites were correlated with the dispersion of nano-CaCO3 in PU and the interfacial interactions between nano-CaCO3 and polymer matrix. (C) 2010 Published by Elsevier B.V.
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页码：1 / 7
页数：7
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