环氧树脂/粘土纳米复合材料的制备与性能研究

吕建坤; 柯毓才; 漆宗能; 益小苏

环氧树脂/粘土纳米复合材料的制备与性能研究

1.
浙江大学高分子复合材料研究所,杭州310027;
2.
中国科学院化学研究所工程塑料国家重点实验室,北京 100080;
3.
北京航空材料研究院先进复合材料国防科技重点实验室,北京100095

基金项目: 总装备部国防科技重点实验室基金项目

详细信息

作者简介:
吕建坤(1966),女,博士,副教授,复合材料研究方向。

中图分类号: V258; TB383
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出版历程
- 收稿日期: 1999-05-19
- 修回日期: 1999-07-21
- 刊出日期: 2002-02-14

SYNTHESIS AND MECHANICAL PROPERTIES OF EPOXY/CLAY NANOCOMPOSITES

1.
Institute of Polymers Composite, Zhejiang University, Hangzhou 310027,China;
2.
Key Laboratory of Engineering Plastics, Institute of Chemistry, C A S, Beijing 100080,China;
3.
Key Laboratory of Advanced Composites, Beijing Institute of Aeronautic Materials, Beijing 100095,China

摘要

摘要: 研究了有机蒙脱土在环氧树脂中的插层和剥离行为,制备了两种环氧树脂/蒙脱土纳米复合材料并测试了其力学性能。实验结果表明,环氧树脂与有机土的相容性好,二者混合时环氧树脂很容易插入到粘土层间。使用经不同有机阳离子处理的两种有机蒙脱土,分别制得插层型和剥离型环氧/粘土纳米复合材料,力学性能结果表明,剥离型纳米复合材料的性能优于同组成的插层型纳米复合材料。
- 环氧树脂 /
- 纳米复合材料 /
- 粘土
Abstract: Synthesis and mechanical properties of epoxy/clay nanocomposites are studied in this paper. It is found that the affinity between the organoclay and epoxy resin is very good and the organoclay is easy to be intercalated by epoxy resin with or without solvent. By direct or solution mixing, a stable and homogeneous epoxy/clay intercalated hybrid can be obtained in which the basal spacing of clay increases to about 3.7nm. Using two different kinds of organoclay, both exfoliated and intercalated epoxy/clay nanocomposites are achieved. In the former case, the clay exfoliates completely and there is no trace of X-ray diffraction peaks while in the latter case the clay retains its previous structure and strong X-ray diffraction peaks remain. Mechanical properties test results show that the exfoliated nanocomposite performs better than the intercalated nanocomposite of the same compound. But even in the exfoliated nanocomposites the mechanical properties of epoxy resin are not improved magnificently as in the cases of thermal plastic.
- epoxy resin /
- nanocomposite /
- clay