硅酸钾水性无机涂料的贮存稳定性及耐水性能的研究  

Study on Storage Stability and Water Resistance of Potassium Silicate Waterborne Inorganic Coatings

作　　者：刘荣鑫 张志勇 曹立刚 焦学平 刘传龙 杜国平[1] LIU Rong-xin;ZHANG Zhi-yong;CAO Li-gang;JIAO Xue-ping;LIU Chuan-ong;DU Guo-ping(School of Physics and Materials Science,Nanchang University,Nanchang 330031,Jiangxi,China;Shandong Yanzhou Construction Corporation,Jining 272100,Shandong,China)

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

出　　处：《中国涂料》2024年第4期56-60,共5页China Coatings

摘　　要：主要研究了不同模数的硅酸钾和不同种类的有机乳胶对涂料贮存稳定性和耐水性能的影响。通过对比实验制备了涂料样品,并对涂料的黏度、耐水性、贮存稳定性等进行了表征。实验结果表明:硅酸钾模数为3.5的无机涂料贮存稳定性最好,硅酸钾模数在3.5~3.9的耐水性能较为优异;对比了纯丙乳胶、苯丙乳胶和硅丙乳胶对涂料性能的影响,结果发现使用苯丙乳胶的硅酸钾水性无机涂料贮存稳定性最好,且苯丙乳胶和硅丙乳胶的耐水性能均优于纯丙乳胶。本实验使用3.5模数硅酸钾和苯丙乳胶所制备的硅酸钾水性无机涂料性能满足TCSTM 00632.3—2022《建筑涂饰工程用涂料产品技术要求第3部分:无机建筑涂料体系》的标准要求。This paper mainly studied the influence of potassium silicate with different moduli and different kinds of organic latex on the storage stability and water resistance of coatings.Coatings samples were prepared through comparative experiments,and the viscosity,water resistance,and storage stability of the coatings were characterized.The experimental results show that inorganic coatings with potassium silicate modulus of 3.5 have the best storage stability,and coatings with potassium silicate modulus between 3.5 and 3.9 have excellent water resistance;the effects of pure acrylic latex,styrene acrylic latex,and silicone acrylic latex on the coatings performance were compared.The results showed that the potassium silicate waterborne inorganic coatings using styrene acrylic latex had the best storage stability,and the water resistance of styrene acrylic latex and silicone acrylic latex was better than that of pure acrylic latex.The performance of potassium silicate waterborne inorganic coatings prepared by using 3.5 modulus potassium silicate and styrene acrylic latex in this experiment meets the requirements of T/CSTM 00632.3—2022 Technical Requirement for Coatings Used in Architectural Finishing Engineering—Part 3:Inorganic Architectural Coatings System.

关 键 词：硅酸钾 无机涂料 贮存稳定性 耐水性 

分 类 号：TQ630.71[化学工程—精细化工]