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材料导报  2018, Vol. 32 Issue (18): 3261-3265    https://doi.org/10.11896/j.issn.1005-023X.2018.18.029
  高分子与聚合物基复合材料 |
甲基丙烯酸处理活性硅酸钙填充硅橡胶的性能
程朝霞1,2, 彭小芹1, 季晓丽1, 曾路1
1 重庆大学材料科学与工程学院,重庆 400045;
2 河南理工大学土木工程学院,焦作 454003
Properties of Activated Calcium Silicate Filled Silicone Rubber Treated with Methacrylic Acid
CHENG Zhaoxia1,2, PENG Xiaoqin1, JI Xiaoli1, ZENG Lu1
1 College of Material Science and Engineering, Chongqing University, Chongqing 400045;
2 School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454003
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摘要 在蒸压反应釜中加入甲基丙烯酸(MAA)试剂及活性硅酸钙浆体,然后在一定温度下搅拌处理并干燥,得到MAA-ACS粉体材料。将MAA-ACS粉体加入硅橡胶中,研究其对硅橡胶性能的影响。通过XRD、SEM表征了粉体组成、形貌,采用TG、DSC研究了硅橡胶的热性能,同时通过拉伸及溶胀测试分析了硅橡胶的力学性能及其影响机理。结果表明, 经MAA处理后,活性硅酸钙粉体的形貌及微观结构发生了变化。添加5%(质量分数)MAA-ACS粉体时,硅橡胶主分解温度提高76.6 ℃,起始分解温度和终点分解温度分别提高了33.6 ℃和108.6 ℃。添加MAA-ACS粉体后,硅橡胶的拉伸强度、伸长率、交联密度均有所增加。
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程朝霞
彭小芹
季晓丽
曾路
关键词:  活性硅酸钙  甲基丙烯酸  硅橡胶    
Abstract: The methacrylic acid (MAA) reagent and the active calcium silicate (ACS) slurry interacted with each other in an autoclave reaction vessel at a certain temperature to obtain dry MAA-ACS powder. The MAA-ACS powder was added to a silicone rubber to improve its properties. The MAA-ACS powder composition and morphology were characterized by XRD and SEM. The thermal properties of the silicone rubber were studied by TG and DSC. The mechanical properties and the influencing mechanism were also analyzed by the tensile and swelling tests. The results showed that the morphology and microstructure of the MAA-ACS powder were different with the usual ACS. After adding 5% MAA-ACS powder, the main decomposition temperature, initial temperature and final decomposition temperatures of the silicone rubber were increased by 76.6 ℃,33.6 ℃ and 108.6 ℃ respectively. The tensile strength, elongation at break and crosslinking density of the silicone rubber were improved with the addition of MAA-ACS powder.
Key words:  activated calcium silicate    methacrylic acid    silicone rubber
                    发布日期:  2018-10-18
ZTFLH:  :TB332  
基金资助: 国家自然科学基金(51402029);重庆大学大型仪器开放基金(2013121513);2015年地方高校国家级大学生创新创业训练计划项目(201510460009)
作者简介:  程朝霞:女,1978年生,博士研究生,讲师,主要从事建筑材料研究 E-mail:chengzhaoxia@hpu.edu.cn
引用本文:    
程朝霞, 彭小芹, 季晓丽, 曾路. 甲基丙烯酸处理活性硅酸钙填充硅橡胶的性能[J]. 材料导报, 2018, 32(18): 3261-3265.
CHENG Zhaoxia, PENG Xiaoqin, JI Xiaoli, ZENG Lu. Properties of Activated Calcium Silicate Filled Silicone Rubber Treated with Methacrylic Acid. Materials Reports, 2018, 32(18): 3261-3265.
链接本文:  
http://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2018.18.029  或          http://www.mater-rep.com/CN/Y2018/V32/I18/3261
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