改性高模数硅酸钾溶液的制备

Preparation of Modified High Modulus Potassium Silicate Solution

以低模数硅酸钾为原来,采用碱性硅溶胶改性技术制备高模数硅酸钾溶液。详细研究了高模数硅酸钾溶液制备过程中反应温度、硅酸钾溶液的物质的量比率、硅烷偶联剂的种类等重要影响因素。结果表明:温度50℃、甲基三甲氧基硅烷添加量3%时,可制备模数为5.2的硅酸钾。

Low modulus potassium silicate to the original, using alkaline silica sol - modified high modulus potassium silicate solution preparation techniques. Detailed study of the important factors of the process of the preparation of potassium silicate solution of high modulus reaction temperature, the molar ratio of potassium silicate solution, and other types of silane coupling agent. The results showed that： temperature 50℃, methyl trimethoxysilane the amount of 3%, can be prepared modulus potassium silicate 5.2.