| 聚苯乙烯-丙烯腈/蒙脱土纳米复合材料的制备和结构 |
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| 引用本文： | 杨晋涛,范宏,卜志扬,李伯耿.聚苯乙烯-丙烯腈/蒙脱土纳米复合材料的制备和结构[J].化工学报,2006,57(12):3016-3020. |
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| 作者姓名： | 杨晋涛 范宏 卜志扬 李伯耿 |
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| 作者单位： | 浙江大学化学工程联合国家重点实验室聚合反应工程分室，浙江 杭州 310027;浙江工业大学化学工程与材料学院，浙江 杭州 310014 ; |
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| 摘 要： | 引 言 近年来,聚合物/蒙脱土纳米复合材料已成为材料科学界的一个研究热点,各种高分子材料均被尝试用来制备此类纳米复合材料以提高聚合物的力学性能、热性能和阻隔性能1-4].对聚合物/蒙脱土纳米复合材料的研究主要集中在制备方法、结构和性能表征方面,如何利用蒙脱土片层的特性来探索简单易行、成本较低且能够使蒙脱土充分剥离分散的方法一直是此方面的研究焦点.
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| 关 键 词： | 聚苯乙烯-丙烯腈/蒙脱土纳米复合材料 制备 结构 |
| 文章编号： | 0438-1157（2006）12-3016-05 |
| 收稿时间： | 12 9 2005 12:00AM |
| 修稿时间： | 2005-12-092006-06-23 |
Preparation and structure of poly(styrene-acrylonitrile)/montmorillonite nanocomposite |
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| YANG Jintao,FAN Hong,BU Zhiyang,LI Bogeng.Preparation and structure of poly(styrene-acrylonitrile)/montmorillonite nanocomposite[J].Journal of Chemical Industry and Engineering(China),2006,57(12):3016-3020. |
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| Authors: | YANG Jintao FAN Hong BU Zhiyang LI Bogeng |
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| Affiliation: | 1.Polymer Reaction Engineering Branch, State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou 310027, Zhejiang , China ; 2. College of Chemical Engineering and Materials, Zhejiang University of Technology, Hangzhou 310014, Zhejiang , China |
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| Abstract: | Poly(styrene-acrylonitrile) emulsion particles with positive charges on the surface were synthesized by emulsion polymerization using cationic surfactant octotyltrimethyl ammonium chloride (OTAC) as emulsifier.The suspension of montmorillonite was slowly dropped into the emulsion.Through the interaction between the negative charges on the montmorillonite layers and the cations on the surface of poly(styrene-acrylonitrile) particles, the montmorillonite layers and emulsion particles could assemble and absorb on each other by themselves.The change of δ voltage and particle size of the emulsion during the process of dropping was characterized, which demonstrated that the emulsion particles and montmorillonite layers absorbed on each other by the electrovalent bond and an intersectional structure was formed in the complex emulsion.Poly(styrene-acrylonitrile)/ montmorillonite nanocomposite was obtained after coagulation.The structure of nanocomposite was characterized with XRD and TEM.The results indicated that montmorillonite was exfoliated into layers with a thickness of several nanometers and uniformly dispersed in the polymer matrix. |
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| Keywords: | poly(styrene-acrylonitile)/montmorillonite nanocomposite preparation structure |
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