| 碳纳米管在水泥基复合材料中的分散性研究 |
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| 引用本文： | 张姣龙,朱洪波,柳献,袁勇.碳纳米管在水泥基复合材料中的分散性研究[J].武汉理工大学学报,2012,34(5):6-9,24. |
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| 作者姓名： | 张姣龙 朱洪波 柳献 袁勇 |
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| 作者单位： | 1. 同济大学隧道及地下建筑工程系,上海,200092
2. 同济大学材料科学与工程学院,上海,201804 |
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| 摘 要： | 通过试验研究了碳纳米管在不同掺量、超声波分散以及表面活性剂作用下的分散性及其对水泥基复合材料力学性能的影响;采用SEM观测了碳纳米管改性水泥基复合材料的微观结构,讨论了影响碳纳米管在水泥基复合材料中分散性的因素;综合分析了分散性与力学性能的关系。结果表明:合理的碳纳米管掺量在超声波分散和PVP表面活性剂共同作用下能够显著提高碳纳米管在水泥浆体中的分散性,使水泥/碳纳米管复合材料的抗压强度提高14%。
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| 关 键 词： | 碳纳米管 分散性 水泥基复合材料 SEM |
Research on Dispersion of Carbon Nano Tubes in Cement Based Composite |
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| ZHANG Jiao-long
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ZHU Hong-bo
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LIU Xian
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YUAN Yong.Research on Dispersion of Carbon Nano Tubes in Cement Based Composite[J].Journal of Wuhan University of Technology,2012,34(5):6-9,24. |
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| Authors: | ZHANG Jiao-long ZHU Hong-bo LIU Xian YUAN Yong |
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| Affiliation: | 1(1.Department of Tunnel and Underground Engineering,Tongji University,Shanghai 200092,China; 2.School of Materials Science and Engineering,Tongji University,Shanghai 201804,China) |
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| Abstract: | In this paper,the effects of different CNTs(Carbon Nano Tubes) proportion,ultrasonic and surfactant on both the dispersion of CNTs and mechanical performance of composite were studied through experiments.The images of SEM presented the microstructures of cement based composite modified with CNTs.As for the dispersion of CNTs in cement based composite,influential factors were discussed.Finally,this article analyzed the relationship between dispersion of CNTs and mechanical performance of composite.The results indicate that the dispersion of CNTs in cement paste is improved a lot with reasonable CNTs proportion,ultrasonic vibration and surfactant,making the compressive strength of cement/CNTs composite increase by 14%. |
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| Keywords: | CNTs dispersion cement based composite SEM |
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