氯氧镁水泥耐水改性剂的研究  

Study on Water Resistance Modifier of Magnesium Oxychloride Cement

作　　者：李领肖 陈雄木 刘秀英 赵风清[1] Li Lingxiao1, Chen Xiongmu1, Liu Xiuying2, Zhao Fengqing1(1. College of Chemical and Pharmaceutical Engineering Hebei University of Science ＆ Technology, Shijiazhuang 050018, 2. Huabei Pharmaceutical Hebei Huamin Pharmaceutical Co., Ltd.Shijiazhuang 05216)

机构地区：[1]河北科技大学化学与制药工程学院,河北石家庄050018 [2]华北制药河北华民药业有限公司,河北石家庄052165

出　　处：《粉煤灰综合利用》2018年第5期26-29,共4页Fly Ash Comprehensive Utilization

基　　金：河北省重点科学研究计划项目(17273807d)

摘　　要：以软化系数为目标,采用响应面法(Box-Behnken)进行试验设计,得到氯氧镁水泥耐水改性剂优化物料配比:柠檬酸1.3%,硅灰6%,苯丙乳液0.5%,β半水石膏11.95%。此时,氯氧镁水泥的软化系数达到0.981。对添加改性剂的镁水泥结构进行分析表征,证实改性剂对氯氧镁水泥水化产物5·1·8相具有较好的保护作用,保证了胶凝材料泡水后具有较高强度,耐水性能得到明显的改善。With softening coefficient being the objective, response surface method （ Box-Behnken ） was used for the experimental design in order to obtain the optimal material ratio of water resistance modifier for magnesium oxychloride cement ： citric acid 1.3 %, silica fume 6 %, styrene-acrylic emulsion 0.5 %, β -hemihydrate gypsum 11.95 %. In this case, the softening coefficient of magnesium chloride cement reached 0.981. The structure of magnesium cement with the modifier was analyzed and characterized. It was proved that the modifier had a better protective effect on 5Mg（OH）2· MgCl2·8H2O, which ensured the high strength of cementing material after soaking in water.

关 键 词：氯氧镁水泥 耐水性 软化系数 

分 类 号：TQ172.719.9[化学工程—水泥工业]