| 硅烷偶联剂改性对聚丙烯纤维抗裂效果的影响 |
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| 引用本文： | 罗玲 彭家惠 瞿金东. 硅烷偶联剂改性对聚丙烯纤维抗裂效果的影响[J]. 土木与环境工程学报, 2007, 29(4): 118-120 |
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| 作者姓名： | 罗玲 彭家惠 瞿金东 |
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| 作者单位： | 1. 新疆大学,建筑工程学院,乌鲁木齐,830008
2. 重庆大学,材料学院,重庆,400045 |
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| 摘 要： | 采用乙烯基三乙氧基硅烷偶联剂(SCA-1613)对聚丙烯纤维分别进行浸泡和表面接枝改性,并研究了最佳改性工艺条件;通过对开裂指数和断裂能的测试,研究了偶联剂改性对聚丙烯纤维在砂浆中的抗裂性能的影响。结果表明,与未改性纤维相比,经硅烷浸泡处理后的纤维,可明显提高水泥基材料的抗塑性开裂性能,其最佳的纤维体积掺量为0.08%,改性效果较突出。
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| 关 键 词： | 聚丙烯纤维 表面改性 硅烷偶联剂 水泥砂浆 塑性收缩开裂 断裂能 |
| 文章编号： | 1006-7329（2007）04-0118-03 |
| 修稿时间： | 2007-01-15 |
Modification of Polypropylene Fiber by Silane Coupling Agent and Its Influence on the Anti-crack Property of Cement Mortar |
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| LUO Ling,PENG Jia-hui,QU Jin-dong. Modification of Polypropylene Fiber by Silane Coupling Agent and Its Influence on the Anti-crack Property of Cement Mortar[J]. Journal of Civil and Environmental Engineering, 2007, 29(4): 118-120 |
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| Authors: | LUO Ling PENG Jia-hui QU Jin-dong |
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| Affiliation: | 1. College of Construction Engineering, Xinjiang University, Xinjiang 830008, China;2. College of Materials Science and Engineering, Chongqing University, Chongqing 400045,China |
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| Abstract: | In this paper,the surface of polypropylene(PP) fiber was modified by SCA-1613 impregnating and grafting,and the optimal modifying process was studied.Through the testing on relative cracking index and energy at break,the effect of silane coupling agent modification on the plastic shrinkage cracking resistance of PP fiber in cement mortar was also investigated.Results show that,in comparison with unmodified fiber,the PP fiber impregated with silane coupling agent can obviously improve plastic shrinkage cracking.The optimal addition of polypropylene fiber is 0.08%. |
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| Keywords: | PP fiber surface modification silane coupling agent cement mortar plastic shrinkage cracking energy at break |
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