Nanometer silicon dioxide and titanium dioxide compound microparticle and preparation method thereof
A technology of nano-silica and titanium dioxide, applied in the direction of silicon dioxide, titanium dioxide, silicon oxide, etc., can solve the problems of high refractive index, titanium dioxide refractive index not suitable for adjustment, and no specified particle size, etc., and achieve the effect of simple operation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0033] First, 116 parts (1 gram is 1 weight part, the same below) of deionized water and 0.146 parts of L-lysine were added to a three-necked flask, stirred and preheated at 60°C and 200 rpm for 0.5h, and then 12.7 parts of silicon N-propyl titanate, after reacting for 20h under stirring at 200rpm, increase the stirring speed to 400rpm, and add 4 parts of n-octane solution of isopropyl titanate dropwise within half an hour (12 parts of this solution are composed of isopropyl titanate 2.8 parts and 9.2 parts of n-octane), raise the temperature to 100°C, stop stirring, let stand for 0.5h, then transfer to 60°C oil bath, then add the n-octane solution of isopropyl titanate dropwise within half an hour After 4 parts, raise the temperature to 100°C and stop stirring, let stand for 0.5h and then transfer to 60°C oil bath again, add 4 parts of n-octane solution of isopropyl titanate dropwise within half an hour for the third time , raise the temperature to 100°C, stop stirring, and m...
Embodiment 2
[0035] 60°C, under stirring at 200rpm, add 116 parts of deionized water and 0.292 parts of L-lysine into a three-necked flask, stir and preheat for 0.5h, and add 10.41 parts of ethyl orthosilicate. React for 20h under stirring at 200rpm, increase the stirring speed to 400rpm, add 4 parts of n-octane solution of tetrabutyl titanate dropwise within half an hour (12 parts of this solution consist of 3.4 parts of tetrabutyl titanate and 8.6 parts of n-octane part composition), the temperature was raised to 100°C and the stirring was stopped. After 0.5h, transfer to a 60°C oil bath, add 4 parts of n-octane solution of tetrabutyl titanate dropwise within half an hour, then raise the temperature to 100°C to stop stirring, and transfer to 60°C after 0.5h ℃ oil bath, add 4 parts of n-octane solution of tetrabutyl titanate dropwise within half an hour for the third time, raise the temperature to 100℃, stop stirring, and mature at 100℃ for 16h. Separate layers, filter, dry, and sinter a...
Embodiment 3
[0037]60°C, under stirring at 200rpm, add 116 parts of deionized water and 0.146 parts of L-lysine into a three-neck flask, stir and preheat for 0.5h, and add 16.2 parts of n-butyl silicate. React for 20h under stirring at 200rpm, increase the stirring speed to 500rpm, add 4 parts of N-methyl-2-pyrrolidone solution of tetrabutyl titanate dropwise within half an hour (12 parts of this solution consist of 1.7 parts of tetrabutyl titanate 10.3 parts and N-methyl-2-pyrrolidone), raise the temperature to 100°C and stop stirring. After 0.5h, transfer to a 60°C oil bath, add 4 parts of tetrabutyl titanate N-methyl-2-pyrrolidone solution dropwise within half an hour, then raise the temperature to 100°C and stop stirring for 0.5h Then transfer to 60°C oil bath again, add 4 parts of tetrabutyl titanate N-methyl-2-pyrrolidone solution dropwise within half an hour for the third time, raise the temperature to 100°C, stop stirring, and mature at 100°C 16h. Separate layers, filter, dry, an...
PUM
| Property | Measurement | Unit |
|---|---|---|
| specific surface area | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More