Fast-drying polyurethane primer used in winter and preparation method of fast-drying polyurethane primer
A polyurethane primer and drier technology, applied in the field of building decoration materials, can solve the problems of long coating production cycle, slow drying speed, troublesome furniture factory, etc. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
specific Embodiment approach
[0022] A kind of quick-drying polyurethane primer for winter, it is prepared according to the following steps carried out in order by the raw material of following weight ratio:
[0023] 1) Add 50-60 parts of alkyd resin, 0.3-0.5 parts of wetting and dispersing agent and 4.4-5 parts of n-butyl acetate into the dispersion container, and disperse at the speed of 800-1000r / min for 5-10 minutes;
[0024] 2) Add 0.3-1 parts of anti-sedimentation agent, 3-6 parts of grinding agent and 15-25 parts of filler in sequence at a speed of 400-600r / min, increase the speed to 1000-1300r / min, and disperse until the fineness is ≤60μm ;
[0025] 3) Next, add 0.2-0.5 parts of defoamer, 4-6 parts of nitrocellulose, 1.0-1.8 parts of drier and 7-10 parts of n-butyl acetate at a speed of 800-1000r / min, and stir for 5-10 minutes until the mixed solution is uniform.
[0026] (two) embodiment:
Embodiment 1
[0028] A kind of quick-drying polyurethane primer for winter, it is prepared according to the following steps carried out in order by the raw material of following weight ratio:
[0029] 1) Add 57 parts of alkyd resin, 0.3 parts of modified polyurethane polymer dispersant and 4.9 parts of n-butyl acetate into the dispersion container, and disperse for 8 minutes at the speed of 900r / min;
[0030] 2) Add 0.8 parts of fumed silica, 4.5 parts of grinding agent and 16 parts of filler in sequence at a speed of 500r / min, increase the speed to 1150r / min, and disperse until the fineness is ≤60μm;
[0031] 3) Next, add 0.3 parts of polyether-modified polydimethylsiloxane defoamer, 5 parts of nitrocellulose, 1.2 parts of drier and 10 parts of n-butyl acetate at a speed of 900 r / min, and stir for 8 minutes until the mixed solution is uniform.
Embodiment 2
[0033] A kind of quick-drying polyurethane primer for winter, it is prepared according to the following steps carried out in order by the raw material of following weight ratio:
[0034] 1) Add 50 parts of alkyd resin, 0.5 parts of aliphatic amide wax dispersant and 5 parts of n-butyl acetate into the dispersion container, and disperse at 800r / min for 5 minutes;
[0035] 2) Add 1 part of organic bentonite, 3 parts of grinding agent and 25 parts of filler in sequence at a speed of 400r / min, increase the speed to 1000r / min, and disperse until the fineness is ≤60μm;
[0036] 3) Next, add 0.5 parts of polyacrylate defoamer, 4 parts of nitrocellulose, 1.0 parts of drier and 10 parts of n-butyl acetate at a speed of 800 r / min, and stir for 5 minutes until the mixed solution is uniform.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More