| 硅溶胶/苯乙烯-丙烯酸酯共聚物无机-有机杂化水分散液的制备和表征 |
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| 引用本文： | 黄福明,张国伟,胡春圃,应圣康.硅溶胶/苯乙烯-丙烯酸酯共聚物无机-有机杂化水分散液的制备和表征[J].中国化学工程学报,2005,13(6):816-823. |
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| 作者姓名： | 黄福明 张国伟 胡春圃 应圣康 |
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| 作者单位： | Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China |
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| 基金项目： | Supported by Science and Technology Commission of Shanghai Municipality （No. 0212nm008）. |
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| 摘 要： | A stable silica sol with 3-5 nm in diameter, which can form homogeneous film without crack, was prepared and characterized. Then, the inorganic-organic hybrid aqueous dispersion composed of such a silica sol and an emulsion of styrene （St） and acrylate （Ac） copolymer was prepared and the hybrid effect between the silica sol and poly（St-co-Ac） was observed by Fourier transform infra-red （FT-IR） spectroscope. The toughness of the film prepared by this kind of hybrid aqueous dispersion was excellent, as it was enhanced appreciably by commixing with a small amount of poly（St-co-Ac） emulsion. Some amino-polysiloxane modified hybrid aqueous dispersions were also prepared and the properties of the modified dispersions and their films were investigated. The experimental results showed that the film prepared with such an amino-polysiloxane modified hybrid dispersion exhibited excellent hydrophobicity and low surface energy after heat treatment for 1.5 h, during which the formation of the graft copolymer was observed. The surface energy of this film decreases as a result of the enrichment of siloxane segments on the film surface.
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| 关 键 词： | 硅溶胶 苯乙烯-丙烯酸酯 共聚物 无机-有机杂化水分散液 制备 表征 |
| 收稿时间： | 2005-01-05 |
| 修稿时间： | 2005-01-052005-08-11 |
Preparation and Characterization of Hybrid Aqueous Dispersions Composed of Silica Sol and Poly(styrene-co-acrylate) |
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| HUANG Fuming,ZHANG Guowei,HU Chunpu,YING Shengkang.Preparation and Characterization of Hybrid Aqueous Dispersions Composed of Silica Sol and Poly(styrene-co-acrylate)[J].Chinese Journal of Chemical Engineering,2005,13(6):816-823. |
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| Authors: | HUANG Fuming ZHANG Guowei HU Chunpu YING Shengkang |
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| Affiliation: | Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | A stable silica sol with 3-5 nm in diameter, which can form homogeneous film without crack, was prepared and characterized. Then, the inorganic-organic hybrid aqueous dispersion composed of such a silica sol and an emulsion of styrene (St) and acrylate (Ac) copolymer was prepared and the hybrid effect between the silica sol and poly(St-co-Ac) was observed by Fourier transform infra-red (FT-IR) spectroscope. The toughness of the film prepared by this kind of hybrid aqueous dispersion was excellent, as it was enhanced appreciably by commixing with a small amount of poly(St-co-Ac) emulsion. Some amino-polysiloxane modified hybrid aqueous dispersions were also prepared and the properties of the modified dispersions and their films were investigated. The experimental results showed that the film prepared with such an amino-polysiloxane modified hybrid dispersion exhibited excellent hydrophobicity and low surface energy after heat treatment for 1.5 h, during which the formation of the graft copolymer was observed. The surface energy of this film decreases as a result of the enrichment of siloxane segments on the film surface. |
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| Keywords: | silica sol copolymer aqueous dispersion inorganic-organic hybrid amino-polysiloxane |
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