硅系无机防腐涂料的制备及性能  

Preparation and properties of an inorganic silicon-based anticorrosive paint

作　　者：纪发达 黄志杰[2] JI Fada;HUANG Zhijie(Shandong Longgang Silicon Technology Co.,Ltd.,Weifang 261300,China;College of Automotive Engineering,Guangxi Transport Vocational and Technical College,Nanning 530216,China)

机构地区：[1]山东龙港硅业科技有限公司,山东潍坊261300 [2]广西交通职业技术学院汽车工程学院,广西南宁530216

出　　处：《电镀与涂饰》2024年第4期144-149,共6页Electroplating & Finishing

基　　金：山东省技术创新项目(201930307094);科学技术成果鉴定项目(202137LG0011)。

摘　　要：[目的]硅系无机涂料的耐水性较差,固化过程中易发生起皮、开裂,使用后出现干擦掉粉现象,以及使用寿命短的问题亟需解决。[方法]以硅酸钾、硅溶胶和丙烯酸乳液为主要成膜物,结合钛白粉和石墨烯作为颜填料,再辅以适当的助剂,制得硅系无机防腐涂料。讨论了高模数硅酸钾溶液的稳定性,助剂的选择,以及成膜物、颜填料的用量对涂料性能的影响。[结果]该涂料不含游离甲醛,不含汞、镉等重金属,VOC(挥发性有机物)含量低,且具有优异的贮存稳定性、防腐性、阻燃性、耐水性、耐碱性、耐冲击性等性能。[结论]该涂料克服了传统无机硅酸盐涂料存在的缺点,满足建筑内外墙涂料相关标准的要求。[Introduction]The problems of current silicon-based inorganic paint such as poor water resistance,occurrence of peeling and cracking usually during curing,poor resistance to dry scrubbing after application,and short service life are urgently to be solved.[Method]A silicon-based inorganic anticorrosion paint was prepared with potassium silicate,silica sol,and acrylic emulsion as the main film-forming materials in combination with titania and graphene as fillers and some suitable auxiliary agents.The stability of high-modulus potassium silicate solution,the selection of auxiliary agents,and the effects of the amounts of film-forming materials and pigment/fillers on the properties of the paint were discussed.[Result]The paint does not contain free formaldehyde,mercury,cadmium,and other heavy metals with low VOC(volatile organic compound)content and has excellent storage stability,corrosion resistance,flame retardancy,water resistance,alkali resistance,impact resistance,etc.[Conclusion]It resolves the shortcomings of traditional inorganic silicate paint,and meets the relevant standards of interior and exterior wall paints for buildings.

关 键 词：硅系无机涂料 硅酸钾 丙烯酸乳液 石墨烯 贮存稳定性 耐水性 防腐蚀 

分 类 号：TQ633[化学工程—精细化工] TU561.6[建筑科学—建筑技术科学]