A kind of polystyrene microsphere modified polyurethane aqueous resin and preparation method
A technology of polystyrene microspheres and water-based resins, applied in the field of polystyrene microspheres modified polyurethane water-based resins, modified polyurethane water-based resins, can solve the problems of water-based polyurethane resins that have not been reported, and achieve excellent adhesion, High transparency, the effect of increasing hardness
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0034] A kind of amine-modified polystyrene microsphere X, its preparation steps are as follows:
[0035] a), preparation of chloromethylated polystyrene cross-linked microspheres: in parts by weight, add 3 parts of polystyrene cross-linked microspheres with 5% cross-linking degree in a four-necked flask equipped with a stirrer and a thermometer and 30 parts of dichloromethane, stir to fully swell the microspheres, add 15.6 parts of 1,4-dichloromethoxybutane and SnCl 4 3.5 parts, control the temperature and react at 22°C for 5 hours. After the reaction, use dilute hydrochloric acid to fully wash off the attached catalyst, filter with suction; wash with 1,4-dioxane to remove the residual solvent, and then use distilled water and washing with ethanol and drying under vacuum to obtain the chloromethylated polystyrene microspheres;
[0036] b) Dissolve 3.0 parts of chloromethylated polystyrene microspheres in 15.0 parts of methyl ethyl ketone, stir until fully swollen, then add ...
Embodiment 2
[0038] A kind of amine-modified polystyrene microsphere Y, its preparation steps are as follows:
[0039] a), in parts by weight, add 4.5 parts of polystyrene crosslinked microspheres with 6% degree of crosslinking and 45 parts of dichloromethane in a four-neck flask equipped with a stirrer and a thermometer, stir to make the microspheres fully swell, Add 22.8 parts of 1,4-dichloromethoxybutane and SnCl 45.2 parts, control the temperature and react at 25°C for 8 hours. After the reaction, use dilute hydrochloric acid to fully wash off the attached catalyst, filter with suction; wash with 1,4-dioxane to remove the residual solvent, and then use distilled water and washing with ethanol and drying under vacuum to obtain the chloromethylated polystyrene microspheres;
[0040] b) Add 6.0 parts of chloromethylated polystyrene microspheres to a mixed solvent of 20.0 parts of methyl ethyl ketone and butyl acetate, stir until fully swollen, then add 0.8 parts of 1,3-propylenediamine a...
Embodiment 3
[0042] A kind of amine-modified polystyrene microsphere Z, its preparation steps are as follows:
[0043] a), in parts by weight, add 4.0 parts of polystyrene crosslinked microspheres with 8% degree of crosslinking and 42 parts of dichloromethane in a four-neck flask equipped with a stirrer and a thermometer, stir to make the microspheres fully swell, Add 21 parts of 1,4-dichloromethoxybutane and catalyst SnCl 4 4.8 parts, control the temperature and react at 25°C for 6 hours. After the reaction, use dilute hydrochloric acid to fully wash off the attached catalyst, filter with suction; wash with 1,4-dioxane to remove the residual solvent, and then use distilled water and washing with ethanol and drying under vacuum to obtain the chloromethylated polystyrene microspheres;
[0044] b) Add 5.0 parts of chloromethylated polystyrene microspheres to 18.0 parts of methyl ethyl ketone, stir until fully swollen, then add 0.6 parts of ethylenediamine and 0.6 parts of triethylamine, st...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More