[1]倪卓,张萍,林燕玲,等.不饱和聚酯/微胶囊复合材料自修复性能[J].深圳大学学报理工版,2010,27(3):260-266.
 NI Zhuo,ZHANG Ping,LIN Yan-ling,et al.Self-repairing behaviours of unsaturated polyester/microcapsule composites[J].Journal of Shenzhen University Science and Engineering,2010,27(3):260-266.
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不饱和聚酯/微胶囊复合材料自修复性能()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第27卷
期数:
2010年3期
页码:
260-266
栏目:
化学与化工
出版日期:
2010-07-30

文章信息/Info

Title:
Self-repairing behaviours of unsaturated polyester/microcapsule composites
文章编号:
1000-2618(2010)03-0260-07
作者:
倪卓1张萍1林燕玲1王帅1李伟文2黄中伟2
1)深圳大学化学与化工学院,深圳 518060
2)深圳大学土木工程学院,深圳 518060
Author(s):
NI Zhuo1ZHANG Ping1LIN Yan-ling1WANG Shuai1LI Wei-wen2and HUANG Zhong-wei2
1)College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen 518060, P. R. China
2)College of Civil Engineering, Shenzhen University , Shenzhen 518060, P. R. China
关键词:
材料物理与化学微胶囊增韧自修复材料断裂形貌不饱和聚酯复合材料
Keywords:
materials physics and chemistry microcapsule toughening self-healing material fracture morphology unsaturated polyester composite
分类号:
TQ 317
文献标志码:
A
摘要:
以双酚A型环氧树脂(E-51)为囊芯,脲醛树脂(urea-formaldehyde,UF)为囊壁,采用原位聚合法合成微胶囊,制备不同微胶囊含量的聚酯/微胶囊材料.通过电子拉力机测定材料的力学性能,扫描电子显微镜观察试件断面形貌.微胶囊对聚酯材料具有增韧和修复作用.自修复机理是微胶囊在裂纹前端应力作用下,囊壁出现破裂,囊芯环氧树脂流出并流入裂缝,将裂缝面黏合,达到自修复效果.自修复材料的设计及工程应用,对延长材料在受到冲击、加载和高温条件下的使用寿命和提高工程安全具有重要意义.
Abstract:
In-Situ polymerization was employed to prepared microcapsules using bisphenol A epoxy resin as core and urea-formaldehyde resins (UF) as wall.The specimen of polyester/microcapsule composites contain different amount of microcapsule.Experiments were done by using electronic tensile machine,measuring tensile properties,scanning electron microscope to observe section topography,strain-point bending tester to initiate cracks in the material,and optical microscopy to observe self-repairing process for the cracks.Results show that these microcapsules have a toughening and self-healing effect on the polymer.The self-healing mechanism is that the cracks go through the microcapsules and cause them to break,the core liquid flows out to fill the crack and bonds the cracked surface.The design of self-healing materials and their engineering application is a promising field which could improve material life and safety of the works significantly.

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备注/Memo

备注/Memo:
收稿日期:2010-06-07;修回日期:2010-06-22
基金项目:国家自然科学基金资助项目(50878131);深圳市公共科技基金资助项目(SY200806270082A)
作者简介:倪卓(1963-),男(汉族),吉林省通化市人,深圳大学教授、博士生导师.E-mail:royzhuoni@hotmail.com
更新日期/Last Update: 2010-07-30