| 高模数硅酸钾溶液及其富锌涂料的制备 |
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| 引用本文： | 彭刚阳,瞿金清. 高模数硅酸钾溶液及其富锌涂料的制备[J]. 涂料工业, 2011, 41(8) |
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| 作者姓名： | 彭刚阳 瞿金清 |
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| 作者单位： | 华南理工大学化学与化工学院,广州,510640 |
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| 基金项目： | 广东省教育部产学研结合重大科技专项项目(2010A09020039) |
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| 摘 要： | 以低模数硅酸钾溶液、碱性硅溶胶为主要原料,采用有机硅氧烷作为改性剂制备了稳定的高模数硅酸钾溶液,与锌粉按30:70的质量比例配制富锌涂料.探讨了模数、固含量、有机硅氧烷的种类以及添加量对高模数硅酸钾溶液贮存稳定性和富锌涂料性能的影响.结果表明:硅酸钾溶液的模数在5.5、固含量在25%、γ-缩水甘油醚丙基三甲氧基硅烷(Z-6040)占总质量的3%时,贮存稳定期超过30 d(50℃),由改性后的高模数硅酸钾溶液所配制的富锌涂料涂膜致密且防腐性能优异,可作为长效重防腐涂料使用.
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| 关 键 词： | 高模数硅酸钾 富锌涂料 硅氧烷 改性 |
Preparation of High SiO2/K2O Ratio Potassium Silicate Solution and Its Zinc-Rich Coatings |
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| Peng Gangyang,Qu jinqing. Preparation of High SiO2/K2O Ratio Potassium Silicate Solution and Its Zinc-Rich Coatings[J]. Paint & Coatings Industry, 2011, 41(8) |
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| Authors: | Peng Gangyang Qu jinqing |
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| Affiliation: | Peng Gangyang,Qu jinqing (School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | A stable potassium silicate solution with high SiO2/K2O molar ratio were prepared by low SiO2/K2O molar ratio potassium silicate solution mixing with alkaline silica sol modified by organosiloxane,and the zinc-rich coating were obtained by mixing zinc dust into modified potassium silicate solution with the mass ratio of 30:70.The effects of molar ratios,solid contents,categories and amounts of organosiloxanes on the storage stability of high SiO2/K2O molar ratio potassium silicate solutions and the properti... |
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| Keywords: | high SiO2/K2O ratio potassium silicate zinc-rich coating organosiloxane modification |
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