丙烯酸镁/丙烯酸钙复合防水材料的制备与性能研究  

Preparation and Properties of Magnesium Acrylate/Calcium Acrylate Composite Waterproof Material

作　　者：谷亚新[1] 卢鹏 黄露莹 聂琦 金恒刚[2] 李晓明[2] 腾飞[2] Gu Yaxin;Lu Peng;Huang Luying;Nie Qi;Jin Heng gang;Li Xiaoming;Teng Fei(College of Materials,Shenyang Jianzhu University,Shenyang 110168 China;Liaoning Institute of Construction Science,Shenyang 110005 China)

机构地区：[1]沈阳建筑大学材料学院,辽宁沈阳110168 [2]辽宁省建设科学研究院,辽宁沈阳110005

出　　处：《山东化工》2022年第14期8-10,13,共4页Shandong Chemical Industry

基　　金：辽宁省教育厅项目(lnfw202014);辽宁省建设科学研究院项目。

摘　　要：为得到满足施工要求且无毒环保的丙烯酸盐防水材料,制备了丙烯酸镁/丙烯酸钙基复合防水注浆材料。以氧化镁或氧化钙、丙烯酸为原料,通过酸碱中和反应分别制备了丙烯酸镁、丙烯酸钙水溶液,进行不同比例的混合,共混形成丙烯酸镁/丙烯酸钙混盐水溶液;加入氧化还原引发剂,通过自由基聚合反应,形成丙烯酸镁/丙烯酸钙聚合物凝胶,研究了混盐溶液的固化以及固化物的性能。结果表明,丙烯酸镁、丙烯酸钙混合质量比例为4∶1时,凝胶体遇水膨胀率、固砂体抗压强度性能最佳。交联剂的加入可以提高吸水膨胀率和固砂体抗压强度。To meet the requirements for safety and get a non-toxic and environmental-friendly acrylate waterproof material,we made the composite waterproof grouting material,namely magnesium acrylate/calcium acrylate.We used magnesium and calcium oxide and acrylic acid as raw materials to produce magnesium acrylate and calcium acrylate aqueous solutions through acid-base neutralization reaction.And we mixed them in different proportions to produce magnesium acrylate/calcium acrylate salt aqueous solution.And we added redox initiator to produce magnesium acrylate/calcium acrylate polymer gel via free radical polymerization reaction.We have researched the solidification of mixed salt solutions and the functions of the solid product.The result shows that the water swelling rate of gel body and the ability to bear pressure of solid sand body are the highest when the mixing ratio of magnesium acrylate and calcium acrylate is 4∶1.The cross-linking agent can upgrade the ability to swell water and the ability of the solid sand body to bear pressure.

关 键 词：丙烯酸镁钙复合盐 固化 防水注浆 

分 类 号：TQ323[化学工程—合成树脂塑料工业] TU592[建筑科学—建筑技术科学]