不同助剂对无机内墙涂料稳定性及成膜性的影响  

Effects of auxiliary agents on stability and film-forming property of inorganic interior wall paint

作　　者：张志勇 关志会 曹立刚 焦学平 刘传龙 杜国平[2] ZHANG Zhiyong;GUAN Zhihui;CAO Ligang;JIAO Xueping;LIU Chuanlong;DU Guoping(Shandong Yanzhou Construction Corporation,Jining 272100,China;School of Physics and Materials Science,Nanchang University,Nanchang 330031,China)

机构地区：[1]山东兖州建设总公司,山东济宁272100 [2]南昌大学物理与材料学院,江西南昌330031

出　　处：《电镀与涂饰》2024年第8期118-124,共7页Electroplating & Finishing

基　　金：山东省工信厅技术创新项目(202250800582,202350800363)。

摘　　要：[目的]以硅酸盐溶液作为主要成膜剂的无机内墙涂料存在贮存稳定性与成膜性能差的技术缺陷。[方法]以硅酸钾溶液和苯丙乳液作为主要成膜物,采用共混法制备无机内墙涂料,研究了不同分散剂、增稠剂、稳定剂和消泡剂对涂料黏度、防流挂性和涂层表观的影响。[结果]确定了制备无机内墙涂料的最佳工艺参数为:六偏磷酸钠(分散剂)0.4%(质量分数,下同),羟丙基甲基纤维素0.1%,黄原胶0.1%,聚氨酯类增稠剂0.5%~1.0%,季铵盐类稳定剂0.5%,矿物油类消泡剂0.5%。[结论]该涂料具有较好的贮存稳定性及成膜性能,能够满足相关国家标准的要求。[Introduction]Inorganic interior wall coatings with silicate solution as the main film-forming agent have the technical defects of poor storage stability and film-forming performance.[Method]An inorganic interior wall paint was prepared by blending potassium silicate solution and styrene-acrylic emulsion as binders.The effects of different dispersants,thickeners,stabilizers,and defoamers on the viscosity and anti-sagging property of the paint and the appearance of its coating were studied.[Result]The optimal dosages of different auxiliary agents by mass fractions for preparing the inorganic interior wall paint were determined as follows:sodium hexametaphosphate 0.4%as a dispersant,hydroxypropyl methyl cellulose 0.1%,xanthan gum 0.1%,polyurethane thickener 0.1%,quaternary ammonium salt stabilizer 0.5%-1.0%,and mineral oil defoamer 0.5%.[Conclusion]The paint has good storage stability and film-forming performance,and its properties can meet the requirements of related national standards.

关 键 词：硅酸盐溶液 苯丙乳液 无机内墙涂料 贮存稳定性 成膜性 黏度 助剂 

分 类 号：TQ638[化学工程—精细化工]