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改性硅氧烷渗透结晶防水涂料的制备及性能研究
作者：谭俊华1，牟天舒2，彭军辉1，倪波1，朱开金1
（1.太原工业学院 材料工程系，山西 太原 030008；
2.北京东方雨虹民用建材有限责任公司，北京 100176）
2.北京东方雨虹民用建材有限责任公司，北京 100176）
摘要：采用丙烯酸酯单体对硅氧烷进行共聚改性作为活性物质，制备无机渗透结晶防水涂料。研究了合成改性硅氧烷的工艺条件及改性硅氧烷掺量对制得的渗透结晶防水涂料的力学、抗渗和抗碳化性的影响；并采用扫描电镜（SEM）和全自动压汞仪（MIP）对掺改性硅氧烷渗透结晶防水材料混凝土的微观结构进行分析。结果显示，改性硅氧烷渗透结晶防水涂料能细化混凝土的孔径分布，显著提高混凝土的抗渗和抗碳化性能。当改性硅氧烷掺量为4%时，混凝土最可能几率孔径仅为83.1 nm，28 d碳化深度下降了近40%。
关键词：渗透结晶防水涂料；改性硅氧烷；抗碳化性；孔径分布
中图分类号：TU56+1.65 文献标识码：A 文章编号：1001-702X（2020）11-0045-04
Preparation and properties of modified siloxane permeable crystalline waterproofing coatings
TAN Junhua1，MU Tianshu2，PENG Junhui1，NI Bo1，ZHU Kaijin1
（1.School of Material Engineering，Taiyuan Institute of Technology，Taiyuan 030008，China；
2.Beijing Oriental Yuhong Civil Building Materials CO. Ltd.，Beijing 100176，China）
Abstract：Acrylate was copolymerized with siloxane as an active substance to prepare permeable crystalline waterproofing coatings. The effects of the process conditions of the synthesis of modified siloxane and the content of modified siloxane on the mechanical，impermeable and anti-carbonization properties of the prepared permeable crystalline waterproofing coating were studied. The microstructure of concrete mixed with modified siloxane permeable crystalline waterproofing coatings was analyzed and characterized with SEM and MIP. The results showed that modified siloxane permeated crystalline waterproof coatings can refine the pore size distribution of concrete and significantly improve the impermeability and carbonation resistance of concrete. When the content of modified siloxane was 4%，the most likely pore size of concrete was only 83.1 nm，and the carbonation depth of 28 d decreased by nearly 40%.
Key words：permeable crystalline waterproofing coatings，modified siloxane，anti-carbonization，pore size distribution