碳纤维增强水泥基复合材料(CFRC)是一种新型建筑智能材料,碳纤维在水泥基体中的分散性直接影响着它的力学性能.借助超声波和甲基纤维素(MC)分散剂,实现了短碳纤维在水泥基体中的均匀分散,对所制备的CFRC复合材料的断口形貌作了SEM观察;测试了试件的抗压强度、抗拉强度和抗折强度.结果发现,碳纤维均匀分散时,复合材料的抗压强度提高19%,抗拉强度比不加碳纤维时提高2.2倍,弹性模量提高1.4倍.此外,复合材料的抗弯强度、抗折强度均高于未均匀分散时的强度.
参考文献
| [1] | 王闯,李克智,李贺军.短碳纤维在不同分散剂中的分散性[J].精细化工,2007(01):1-4,26. |
| [2] | Chung D D L.Cement reinforced with short carbon fibers:a multifunctional material[J].Comp Part B,2000(31):511. |
| [3] | Houssam A. Toutanji .Evaluation of the tensile strength of cement-based advanced composite wrapped specimens[J].Composites science and technology,1999(15):2261-2268. |
| [4] | Zhao Jianguo;Li Kezhi;Li Hejun.The influence of thermal gradient on pyrocarbon deposition in carbon/carbon composites during the CVI process[J].Carbon,2006(44):786. |
| [5] | Garce's P;Fraile J;Vilaplana Ortego E.Effect of carbon fibres on the mechanical properties and corrosion levels of reinforced portland cement mortars[J].Cement and Concrete Research,2005(35):324. |
| [6] | 赵稼祥 .碳纤维的发展与应用[J].纤维复合材料,1996,4(12):46. |
| [7] | 王茂章;贺福.碳纤维的制造、性质及其应用[M].北京:科学出版社,1984 |
| [8] | Cao Jingyao;Chung D D L.Carbon fiber reinforced cement mortar improved by using acrylic dispersion as an admixture[J].Cement and Concrete Research,2001(31):1633. |
| [9] | 刘丽娟,徐梁华,王广林.碳纤维增强水泥基复合材料的应用研究[J].材料科学与工程,2002(02):283-286,272. |
| [10] | Wen Sihai;Chung D D L.Uniaxial compression in carbon fiber-reinforced cement,sensed by electrical resistivity measurement in longitudinal and transverse directions[J].Cement and Concrete Research,2001(31):297. |
| [11] | Yang Yuanxia.Methods study on dispersion of fibers in CFRC[J].Cement and Concrete Research,2002(32):747. |
| [12] | Park Soojin;Seo Minkang;Shim Hwanboh.Effect of different cross-section types on mechanical properties of carbon fibers-reinforced cement composites[J].Materials Science and Engineering A-structural Materials Properties Microstructure and Processing,2004(366):348. |
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