有机硅单体对聚合物水泥涂料相容性与抗渗性的影响  

Effect of Organosilicon Monomer on Compatibility and Impermeability of Polymer-Modified Cementitious Coating

作　　者：苏延俐 姜东兵 李成铭 梁辰[1,2] 赵丕琪 SU Yanli;JIANG Dongbing;LI Chengming;LIANG Chen;ZHAO Piqi(Shandong Provincial Key Lab of Preparation and Measurement of Building Materials,University of Jinan,Jinan 250022,China;School of Materials Science and Engineering,University of Jinan,Jinan 250022,China;China Construction Eighth Bureau New Construction Engineering Co.,Ltd.,Shandong Branch,Jinan 250011,China)

机构地区：[1]济南大学山东省建筑材料制备与测试技术重点实验室,山东济南250022 [2]济南大学材料科学与工程学院,山东济南250022 [3]中建八局新型建造有限公司山东分公司,山东济南250011

出　　处：《建筑材料学报》2025年第1期65-71,共7页Journal of Building Materials

基　　金：国家自然科学基金资助项目(52172021,U22A20126);“十四五”国家重点研发计划项目(2021YFB3802002);山东省优秀青年科学基金资助项目(ZR2023YQ041);山东省自然科学基金资助项目(ZR2021ME123);泰山学者计划项目;山东省高校青年科研人员科技创新支持计划项目(2019KJA017)。

摘　　要：在优选聚合物水泥涂料乳液配比的基础上,通过钙离子稳定性、筛上残余率和Zeta电位等探究了有机硅单体对聚合物水泥涂料相容性与抗渗性的影响,并结合流变测试阐明了有机硅对乳液稳定性的影响机制.结果表明:有机硅在乳液改性过程中使分子链缠绕絮凝增加,Zeta电位下降;当有机硅掺量为2%时,聚合物水泥涂料性能最佳,其防腐抗渗性能得到显著提升;与市售乳液相比,有机硅聚合物水泥涂料的吸水率、电通量分别降低了27.8%、35.1%.Based on the optimized ratio of polymer‑modified cementitious coating emulsion,the effect of organosilicon monomer on the compatibility and impermeability of polymer‑modified cementitious coating was investigated through calcium ion stability,sieve residue rate,and Zeta potential.In addition,the mechanism of organosilicon monomer’s impact on emulsion stability was elucidated in combination with rheological test.The results show that during the modification process of emulsions with organosilicon,molecular chain entanglement flocculation increased,leading to a decrease in Zeta potential.When the dosage of organosilicon is 2%,the polymer‑modified cementitious coating exhibits optimal performance,with significantly enhanced anti‑corrosion and impermeability properties.Compared to commercially available emulsions,the organosilicone polymer‑modified cementitious coating exhits 27.8%,35.1%reduction in water absorption ratio and electrical flux,respectively.

关 键 词：有机硅单体 聚合物乳液 稳定性 涂料 抗渗性能 

分 类 号：TQ172[化学工程—水泥工业]