| Synthesis of nano-CaCO3 composite particles and their application |
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| 作者姓名： | Wei Wu Xueqin Zhang Jianfeng Chen Shuling Shen |
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| 作者单位： | [1]Key Lab of the Ministry of Education of China for Nanomaterials, Beijing University of Chemical Technology, Beijing 100029, China [2]Research Center of the Ministry of Education of China for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China |
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| 基金项目： | The work was financiaUy supported by the National Natural Science Foundation of China （No. 20236020, 20325621） and the National R ＆ D Program of China （No. 2001BA310A01）. |
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| 摘 要： | Nano-calcium carbonate composite particles were synthesized by the soapless emulsion polymerization technique of double monomers. The composite particles formation mechanism was investigated. The effects of composite particles on the mechanical properties of nano-CaCO3-ABS （acrylonitrile-butadiene-styrene copolymer） composite material were studied. It was validated that the composite particles are made up of the nano-calcium carbonate cores and the shells of alternating copolymers of butyl acrylate （BA） and styrene （St）. The shells are chemically grafted and physically wrapped on the surface of nano-calcium carbonate particles. When the composite particles were filled in ABS matrix, the CaCO3 particles are homogeneously dispersed in the composite material as nanoscales. The impact strength of the composite material is obviously enhanced after filling appropriate amounts of composite particles. It can be concluded that the soapless emulsion polymerization of double monomers is an effective method for nano-CaCO3 surface treatment. 2008 University of Science and Technology Beijing. All rights reserved.
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| 关 键 词： | 分析方法 粒子 碳酸钙 化合物 |
| 收稿时间： | 2007-02-22 |
Synthesis of nano-CaCo3 composite particles and their application |
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| Wei Wu Xueqin Zhang Jianfeng Chen Shuling Shen.Synthesis of nano-CaCO3 composite particles and their application[J].Journal of University of Science and Technology Beijing,2008,15(1):67-73. |
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| Authors: | Wei Wu Xueqin Zhang Jianfeng Chen Shuling Shen |
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| Affiliation: | aKey Lab of the Ministry of Education of China for Nanomaterials, Beijing University of Chemical Technology, Beijing 100029, China;bResearch Center of the Ministry of Education of China for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Nano-calcium carbonate composite particles were synthesized by the soapless emulsion polymerization technique of double monomers. The composite particles formation mechanism was investigated. The effects of composite particles on the mechanical properties of nano-CaCO3-ABS (acrylonitrile-butadiene-styrene copolymer) composite material were studied. It was validated that the composite particles are made up of the nano-calcium carbonate cores and the shells of alternating copolymers of buty1 acrylate (BA) and styrene (St). The shells are chemically grafted and physically wrapped on the surface of nano-calcium carbonate particles. When the composite particles were filled in ABS matrix, the CaCO3 particles are homogeneously dispersed in the composite material as nanoscales. The impact strength of the composite material is obviously enhanced after filling appropriate amounts of composite particles. It can be concluded that the soapless emulsion polymerization of double monomers is an effective method for nano-CaCO3 surface treatment. |
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| Keywords: | nano-calcium carbonate composite particles soapless emulsion polymerization composite material mechanical proper-ties mechanism |
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