| 微胶囊对微胶囊/环氧树脂复合材料增韧作用 |
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| 引用本文： | 倪卓,杜学晓,王帅,梁伟杰,苏晓敏,单晓凤. 微胶囊对微胶囊/环氧树脂复合材料增韧作用[J]. 复合材料学报, 2011, 28(4): 63-69 |
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| 作者姓名： | 倪卓 杜学晓 王帅 梁伟杰 苏晓敏 单晓凤 |
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| 作者单位： | 深圳大学 化学与化工学院, 深圳 518060 |
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| 基金项目： | 国家自然科学基金(50878131); 深圳市科技项目(SY200806270082A) |
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| 摘 要： | 使用脲醛(Urea-formaldehyde)树脂-环氧树脂微胶囊(E-51)和三聚氰胺-尿素-甲醛共缩聚树脂 (Melamine-urea-formaldehyde)-环氧树脂微胶囊(E-51)制备微胶囊/环氧树脂复合材料样品。对其力学性能进行了测试, 并对复合材料的断面形貌进行了观察, 研究了微胶囊对微胶囊/环氧树脂复合材料力学性能的影响。结果表明: 随着微胶囊用量的增加, 复合材料拉伸强度和弯曲强度有所降低; 微胶囊质量分数小于2%时, 复合材料断裂伸长率和断裂弯曲应变有所提高; 大于2%时复合材料断裂伸长率和断裂弯曲应变下降。微胶囊对环氧树脂有增韧效果, 微胶囊表面越粗糙, 粒径越小, 增韧效果越明显。在裂纹扩展区, 大部分微胶囊破裂, 裂纹终止区, 大部分微胶囊剥离。
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| 关 键 词： | 微胶囊 增韧 断面形貌 力学性能 环氧树脂 复合材料 |
| 收稿时间： | 2010-06-13 |
Effects of microcapsules on toughening properties for microcapsule/epoxy composites |
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| NI Zhuo,DU Xuexiao,WANG Shuai,LIANG Weijie,SU Xiaomin,SHAN Xiaofeng. Effects of microcapsules on toughening properties for microcapsule/epoxy composites[J]. Acta Materiae Compositae Sinica, 2011, 28(4): 63-69 |
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| Authors: | NI Zhuo DU Xuexiao WANG Shuai LIANG Weijie SU Xiaomin SHAN Xiaofeng |
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| Affiliation: | College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen 518060, China |
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| Abstract: | The microcapsules were synthesized by in-situ polymerization technology respectively with urea-formaldehyde resin(UF) or melamine-urea-formaldehyde co-condensed resin(MUF) as shell materials and epoxy resin(E-51) as core materials.A series of epoxy composite specimen were prepared using the microcapsules in order to study the effects of the microcapsules.Tensile and bending properties of the composite specimen were tested by universal tensile machine,and the fracture surface of composite materials was obser... |
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| Keywords: | microcapsule toughening fracture surface mechanical properties epoxy resin composites |
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