| 聚丙烯酰胺／蒙脱土仿贝壳纳米复合材料的制备 |
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| 引用本文： | 龙斌,汪长安,黄勇,孙加林.聚丙烯酰胺／蒙脱土仿贝壳纳米复合材料的制备[J].稀有金属材料与工程,2007,36(A01):844-847. |
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| 作者姓名： | 龙斌 汪长安 黄勇 孙加林 |
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| 作者单位： | [1]北京科技大学材料科学与工程学院,北京100083 [2]清华大学材料科学与工程系新型陶瓷与精细工艺国家重点实验室,北京100084 |
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| 基金项目： | 国家自然科学基金（50572044）和教育部新世纪优秀人才资助计划项（NCET-04-0083） |
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| 摘 要： | 研究了电泳沉积制备聚丙烯酰胺／蒙脱土纳米层状复合材料的过程中悬浮液的性能、电泳沉积的参数对材料的制备以及结构的影响。通过改变有机／无机的相对浓度、调节电压和沉积时间，制备出均匀的薄膜。结果表明，随着单体浓度的增加，溶液的zeta电位和电导率降低，溶液变得不稳定。XRD和FTIR表明，单体插层进入蒙脱土的层间后，经过紫外照射而聚合，随着单体浓度的改变，蒙脱土的层间结构发生了变化。通过SEM，可以观察到材料呈现天然贝壳的层状结构。
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| 关 键 词： | 蒙脱石 丙烯酰胺 电泳沉积 仿贝壳结构 |
| 文章编号： | 1002-185X（2007）S1-0844-04 |
| 修稿时间： | 2007-02-28 |
Preparation of Polyacrylamide/Montmorillonite Nacre-Like Nanocomposites |
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| Affiliation: | 1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;2. State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China |
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| Abstract: | The effects of electric properties of suspension and parameters of electrophoretic deposition on preparation and the properties of the polyacrylamide/montmorillonite nanocomposites have been investigated. The homogeneous films were obtained by changing the organic/inorganic relative concentration and adjusting voltages and deposition time. The results show that the suspension became unstable as the content of acrylamide increased, which was verified by the decrease of the Zeta potential and conductivity. XRD and FTIR showed that the acrylamide was polymerized by the UV light after intercalating into the interlayer of the clay. Thus, the structure of the clay was affected by the different contents of the monomers. SEM showed that the film exhibited a layered structure, which was similar to the nature nacre. |
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| Keywords: | montmorillonite acrylamide electrophoretic deposition nacre-like structure |
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