| PCs/GO复合物对水泥基材料微观结构和力学性能的影响 |
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| 引用本文： | 吕生华,朱琳琳,贾春茂,李莹,贺亚亚,赵浩然,邓丽娟.PCs/GO复合物对水泥基材料微观结构和力学性能的影响[J].材料导报,2017,31(6):125-129, 135. |
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| 作者姓名： | 吕生华 朱琳琳 贾春茂 李莹 贺亚亚 赵浩然 邓丽娟 |
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| 作者单位： | 1. 陕西科技大学轻工科学与工程学院,西安,710021;2. 陕西科技大学化学与化工学院,西安,710021 |
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| 基金项目： | 国家自然科学基金面上项目(21276152) 吕生华:1963年生,博士,教授,博士研究生导师,主要研究方向为水泥基材料的结构与性能 E-mail:lvsh@sust.edu.cn |
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| 摘 要： | 用氧化石墨烯(GO)纳米片层分散液与甲基丙烯酸聚氧乙烯单甲醚(MPE)、甲基丙烯酸(MAA)和丙烯磺酸盐(AA)进行插层聚合反应制备了聚羧酸减水剂(PCs)与GO的插层复合物(PCs/GO),将其应用于水泥基复合材料。结果表明,PCs/GO能够调控水泥基体成为由多面体状产物构成的规整的微观结构,具有显著的增强增韧效果,同时也发现PCs/GO能够在水泥基体的裂缝和孔洞处产生花状和多面体状晶体,具有修复裂缝、孔洞的功效。研究结果对于制备无裂缝及高强度、高韧性和高耐久性水泥基复合材料具有积极的意义。
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| 关 键 词： | 氧化石墨烯 水泥微观结构 自修复作用 增强作用 |
Influence of PCs/GO Composites on Microstructure and Mechanical Properties of Cement Based Materials |
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| LU Shenghu,ZHU Linlin,JIA Chunmao,LI Ying,HE Yay,ZHAO Haoran and DENG Lijuan.Influence of PCs/GO Composites on Microstructure and Mechanical Properties of Cement Based Materials[J].Materials Review,2017,31(6):125-129, 135. |
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| Authors: | LU Shenghu ZHU Linlin JIA Chunmao LI Ying HE Yay ZHAO Haoran and DENG Lijuan |
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| Abstract: | The composites of polycarboxylate superplasticizer (PCs) and raphene oxide (GO) (PCs/GO) was prepared by intercalation of GO and methacrylic acid (MAA), sodium allyl sulfonate (SAS) and methacrylate polyoxyethylene ether (MPE). The application results indicated that PCs/GO could regulate to form ordered micromorphology consisted by polyhedron products, which exhibited obvious reinforcing and toughening effect. Meanwhile, it was found that GO could generate flower-like and polyhedron products in the holes and cracks to repair the holes and cracks. The research result has positive significance to preparation of the cement composites with defect-free structure, high strength, high toughness as well as long service life. |
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| Keywords: | graphene oxide cement microstructure self-repairing effects reinforcement |
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