| 改性废胶粉/天然橡胶的制备及性能 |
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| 引用本文： | 丁国新.改性废胶粉/天然橡胶的制备及性能[J].宇航材料工艺,2012,42(3):63-67. |
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| 作者姓名： | 丁国新 |
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| 作者单位： | 安徽理工大学材料科学与工程学院,淮南,232001 |
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| 基金项目： | 安徽省高校省级优秀青年人才基金，安徽理工大学2010年度青年教师科学研究基金 |
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| 摘 要： | 以丙烯酰胺(AM)为接枝单体,采用紫外光(UV)接枝的方法对废胶粉进行接枝改性,研究了废胶粉接枝改性的最佳条件。将最佳改性条件下的废胶粉与天然橡胶制成复合材料,研究了复合材料的力学性能、热空气老化性能及微观形貌。结果表明:废胶粉紫外光接枝改性的最佳条件为废胶粉目数为100目,AM用量为8%,BP用量为5%,光照时间为4 min。当改性废胶粉添加量为10%时,复合材料的拉伸强度、邵尔A硬度均有所提高;复合材料的抗热氧老化性能得到改善。微观形貌分析表明:改性废胶粉在NR中的分散性得到了改善,相容性得到了提高。
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| 关 键 词： | 废胶粉 接枝改性 复合材料 性能 |
Preparation and Properties of Modified Waste Rubber Powder / Natural Rubber Composites |
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| Ding Guoxin
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Cheng Guojun
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Xia Ming
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Zhang Zhimin.Preparation and Properties of Modified Waste Rubber Powder / Natural Rubber Composites[J].Aerospace Materials & Technology,2012,42(3):63-67. |
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| Authors: | Ding Guoxin Cheng Guojun Xia Ming Zhang Zhimin |
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| Institution: | Ding Guoxin Cheng Guojun Xia Ming Zhang Zhimin(Dept.of Material Science and Engineering,Anhui University of Science and Technology,Huainan 232001) |
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| Abstract: | AM monomer was grafted on waste rubber powder(WRP) surface by using the method of UV-irradiation,and the optimal conditions were investigated.Modified WRP/NR composites were prepared,and the mechanical properties,hot air aging properties and micro morphology were investigated.The results show that the optimal condition can be obtained when content of AM is 8%,content of BP is 5%,illumination time is 4 min and particle size is 100 mesh.The tensile strength,shore A hardness and thermal oxidative aging performance of composites can be improved when modified WRP amount is 10%.The micro morphology analysis show that the dispersibility of WRP is increased and the compatibility is improved after modification. |
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| Keywords: | Waste rubber powder Graft modification Composites Property |
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