| 高分子包覆纳米CaCO3的制备及其在PS中的应用 |
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| 引用本文： | 李谷,王玉海,麦堪成.高分子包覆纳米CaCO3的制备及其在PS中的应用[J].中国塑料,2006,20(12):31-34. |
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| 作者姓名： | 李谷 王玉海 麦堪成 |
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| 作者单位： | 中山大学化学与化学工程学院,广东广州510275 |
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| 基金项目： | 中山大学化学与化工学院第四届创新化学实验基金项目（批准号：03025） |
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| 摘 要： | 用丙烯酸（AA）与苯乙烯（St）及丙烯酸甲酯（MA）与苯乙烯（St）共聚包覆改性纳米CaCO3，通过红外光谱及透射电镜对改性前后纳米CaCO3的结构和微观形貌进行了表征，利用改性后的纳米CaCO3填充聚苯乙烯（PS），测试了PS／纳米CaCO3复合材料的力学性能。结果表明包覆改性后的纳米CaCO3对，PS有增强增韧作用。经MA与St共聚包覆改性的纳米CaCO3比用AA与St共聚改性的纳米粒子更能提高PS／纳米CaCO3复合材料的力学性能，其拉伸强度及无缺口冲击强度分别比纯PS提高14％和21％。
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| 关 键 词： | 聚苯乙烯 纳米碳酸钙 表面改性 包覆 力学性能 |
| 文章编号： | 1001-9278（2006）12-0031-04 |
| 收稿时间： | 2006-06-27 |
| 修稿时间： | 2006-06-27 |
Encapsulation of Nano-CaCO3 and Its Application in PS |
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| LI Gu, WANG Yu-hai, MAI Kan-cheng.Encapsulation of Nano-CaCO3 and Its Application in PS[J].China Plastics,2006,20(12):31-34. |
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| Authors: | LI Gu WANG Yu-hai MAI Kan-cheng |
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| Affiliation: | School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China |
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| Abstract: | Nano-CaCO_3 was encapsulated by copolymerization of acrylate(AA)and styrene(St)or methylaerylate(MA)and St in toluene solution and was characterized by FTIR and TEM after extract- ing by acetone.The results showed that copolymers could be encapsulated on to the surface of nano-Ca- CO_3 by chemical bond.The mechanical properties of PS/nano-CaCO_3 composites showed that nano-Ca- CO_3 modified by MA and St copolymer could reinforce and toughen PS.The tensile strength and non- notched impact strength of PS/nano-CaCO_3 composites modified by MA and St copolymer were higher than those of PS/nano-CaCO_3 composites modified by AA and St eopolymer,and improved by 14% and 21% than pure PS,respectively. |
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| Keywords: | polystyrene nauo calcium carbonate Surface modification encapsulation mechanical property |
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