1. An organic surface treatment method that improves the dispersibility and temperature resistance of titanium dioxide in oil-based coatings. Its characteristics are: First, add the special organic silicon material with the right amount of viscosity to the right amount of industrial ethanol, and then add the sulfuric acid rutile type titanium dioxide that has been coated with silicon-aluminum inorganic coating, and carry out the beating treatment for 30 minutes; the titanium dioxide is dried in an oven at 110 degrees Bake for 4 hours, after cooling, pulverize the titanium dioxide with a small jet mill to obtain the required titanium dioxide.
2. As claimed in claim 1, an organic surface treatment for improving the dispersion and temperature resistance of titanium dioxide in oil-based coatings The method is characterized in that the organosilicon material is one or more silane compounds containing amino group, methacryloxy group, dimethoxy group or diethoxy silicon group. The molecular formulas of organosilicon materials are:
Alkyl silane coupling agent: CnH 2n+l Si (OC2H5)3 or CnH 2n+lSi (0CH3)3 n = 1-10
Methacryloxysilane coupling agent: CH2CH(CH3)C(O)0CnH2n+l Si(OC2H5)3 or CH2CH(CH3)C(0)0 CnH 2n+l Si(OCH3)3n = 1-5
Amino silane coupling agent NH2CnH 2n + lSi(0C2H5)3 or NH2CnH 2n + lSi.(OCH3)3 or NH2CH2CH2NH2CnH 5%。 2n+lSi(OC2H5)3 or NH2CH2CH2NH2CnH 2n+lSi(OCH3)3n =1-5 The amount of organic silicon material is: 0.5-1. 5%.
3. An organic surface treatment method for improving the application performance of titanium dioxide as claimed in claim 1, which is characterized by organic The surface-treated titanium dioxide is sulfuric acid rutile titanium dioxide that has not been treated with any organic treatment but has been coated with silica-alumina inorganic coating.
