| 纳米孔硅气凝胶/聚苯乙烯核壳材料合成制备 |
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| 引用本文： | 耿刚强,李春轩,边功勋,王欢,邹俊俊.纳米孔硅气凝胶/聚苯乙烯核壳材料合成制备[J].长安大学学报(自然科学版),2011(1):102-106. |
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| 作者姓名： | 耿刚强 李春轩 边功勋 王欢 邹俊俊 |
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| 作者单位： | 长安大学材料科学与工程学院;陕西通宇公路研究所有限公司; |
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| 基金项目： | 科技部国际科技合作项目(2008DFA51460) |
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| 摘 要： | 为获得纳米孔超级绝热复合材料,采用硅烷偶联剂对原位生成的纳米孔硅气凝胶进行表面处理,通过分散聚合工艺制备出聚苯乙烯接枝包覆硅气凝胶的纳米核壳结构复合材料。通过电子显微镜(TEM)对上述纳米样品进行了表征,并就体系组分、引发剂、聚合参数和分散工艺的影响进行了讨论。结果表明:体系组分中对转化率影响最大的是硅气凝胶与苯乙烯的质量比;以有机类偶氮二异丁腈(AIBN)为引发剂,经独特的超声工艺处理,获得包覆率达70%的核壳结构复合材料。
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| 关 键 词： | 材料工程 硅气凝胶 分散聚合 核壳结构 |
Synthesis technology of nano-hole silica aerogels/polystyrene core-shell composite materials |
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| GENG Gang-qiang,LI Chun-xuan,BIAN Gong-xun,WANG Huan,ZOU Jun-jun.Synthesis technology of nano-hole silica aerogels/polystyrene core-shell composite materials[J].JOurnal of Chang’an University:Natural Science Edition,2011(1):102-106. |
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| Authors: | GENG Gang-qiang LI Chun-xuan BIAN Gong-xun WANG Huan ZOU Jun-jun |
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| Institution: | GENG Gang-qiang1,LI Chun-xuan2,BIAN Gong-xun1,WANG Huan1,ZOU Jun-jun1(1.School of Materials Science and Engineering,Chang'an University,Xi'an 710061,Shaanxi,China,2.Shaanxi Tongyu Highway Research Institute Co Ltd,Xi'an 710075,China) |
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| Abstract: | In order to obtain nano-hole super heat insulating composite materials,with silane coupl-ing agent on the in-situ nmSiO2 surface treatment,the core-shell structure composite materials are prepared by dispersion polymerization process of polystyrene grafted on the nano SiO2 par-ticles.By TEM on these samples,the impact of the system components,initiator,polymerization parameters and dispersion process is discussed.The results show that the system component of the greatest impact on conversion rate is the rad... |
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| Keywords: | material engineering silica aerogel dispersion polymerization core-shell structure |
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