| 聚氨酯丙烯酸酯改性聚甲基丙烯酸甲酯防水涂料的研究 |
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| 引用本文： | 杨冲,冉千平,孙德文,周栋梁,刘加平.聚氨酯丙烯酸酯改性聚甲基丙烯酸甲酯防水涂料的研究[J].中国建筑防水,2012(21):1-4. |
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| 作者姓名： | 杨冲 冉千平 孙德文 周栋梁 刘加平 |
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| 作者单位： | 江苏省建筑科学研究院有限公司,高性能土木工程材料国家重点实验室,江苏南京210008 |
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| 基金项目： | 973项目,项目编号2009CB623205.江苏省科技支撑计划,项目编号be2010009. |
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| 摘 要： | 以聚氨酯丙烯酸酯树脂(PUMA)为柔性链段与活性单体甲基丙烯酸甲酯进行自由基共聚反应,生成改性的聚甲基丙烯酸甲酯(PMMA)防水涂料。研究了PUMA的用量对PMMA防水涂膜性能的影响,包括固化情况、硬度、附着力、力学性能、不透水性及低温柔性等。当PUMA的用量为60%时制得的PMMA涂膜拉伸强度为16.5 MPa,断裂伸长率达130%,与混凝土粘结强度为3.5 MPa,1.8 MPa、24 h不透水,是一种性能优异的防水材料。
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| 关 键 词： | 聚氨酯丙烯酸树脂 聚甲基丙烯酸甲酯 防水涂料 拉伸强度 断裂伸长率 粘结强度 不透水性 |
Research on Polyurethane Methylacrylate Modified Polymethyl Methacrylate Waterproofing Coating |
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| Yang Chong,Ran Qianping,Sun Dewen,Zhou Dongliang,Liu Jiaping.Research on Polyurethane Methylacrylate Modified Polymethyl Methacrylate Waterproofing Coating[J].China Building Waterproofing,2012(21):1-4. |
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| Authors: | Yang Chong Ran Qianping Sun Dewen Zhou Dongliang Liu Jiaping |
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| Affiliation: | (State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Research Institute of Building Science, Nanjing, Jiangsu 210008,China) |
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| Abstract: | Modified polymethyl methacrylate （PMMA） waterproofing coating was prepared by radical copolymerization of polyurethane methyacrylate （PUMA） and methyl methaerylate. This article studied effects of the content of PUMA on performances of PMMA waterproofing coating, such as curing conditions, hardness, adhesion, mechanical properties, water impermeability and low temperature flexibility. When the content of PUMA was 60%, the modified PMMA coating had good waterproofing performance with 16.5 MPa tensile strength, 130% elongation at break, 3.5 MPa bond strength with concrete and water impermeability at 1.8 MPa and 24 h. |
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| Keywords: | polyurethane methyacrylate polymethyl methacrylate waterproofing coating tensile strength elongation at break bond strength water impermeability |
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