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A kind of water-based two-component anti-skid coating and preparation method thereof
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A non-slip coating, two-component technology, used in polyurea/polyurethane coatings, coatings, etc., can solve problems such as poor adhesion, high price, and changes
Active Publication Date: 2022-07-19
QINGDAO AIR NEW MATERIALS
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Problems solved by technology
The current water-based anti-skid coatings have many shortcomings such as insufficient strength, easy wear, poor chemical resistance, and poor weather resistance.
There are mainly three kinds of anti-slip granules currently used, one is inorganic sand, such as quartz sand, siliconcarbide particles, aluminum oxide wear-resistant fillers, glass beads, ceramic granules, etc. The advantage of this anti-slip granule is that the raw material is easy , low price, high hardness, high friction, the disadvantage is that it is large in proportion, easy to settle, easy to block the gun when spraying, uneven dispersion of sand particles when brushing and rolling, poor impact resistance and easy to fall off; the second type is organic resin particles, such as resin particles , waste rubber particles, polyurea particles, etc. The advantages of this kind of anti-slip particles are small specific gravity, not easy to settle, uniform dispersion, elasticity, and good impact resistance. The disadvantages are slightly poor friction and poor adhesion; the third is anti-slip resin. It is mainly silicone-modified polyester resin, which contains highly active groups and is hydrophobic, which can change the state of the paint film and increase the friction resistance of the coating. Reduce friction, the disadvantage is that the price is more expensive and the system is unstable
The existing anti-slip coatings are mainly oily, highly toxic, and there are a lot of organic solvents harmful to the environment and human health, and there are fire safety hazards
The current water-based anti-slip coatings on the market have poor performance, poor chemical resistance, weather resistance and anti-slip effect, poor storage stability of a single component, and anti-slip particles are easy to settle and stratify
[0003] Therefore, it is necessary to study a water-based two-component anti-slip coating that meets the requirements of high chemical resistance, high weather resistance, and high anti-skid and wear resistance, which can reduce VOC emissions and make the coating healthier for personnel during production and use. The environment is more green and environmentally friendly, and the construction process is simple and can solve the problem of thick coating and foaming of water-based two-component polyurethane coatings
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preparation example Construction
[0061] The present invention also provides a preparation method of the above-mentioned water-based two-component anti-skid coating, comprising the following steps:
[0062] Preparation of Component A:
[0063] (1) Preparation of filler slurry: add water, titanium dioxide, bariumsulfate, quartzpowder, dispersant, anti-settling agent, defoaming agent, anti-slip agent, wear-resistant resin, silicone polymer, and ultraviolet absorber in proportion to Disperse uniformly at high speed in a dispersing tank, then introduce into a sand mill and grind to a particle size of less than 15μm;
[0064] (2) Add matrix resin, filler slurry, wetting agent, defoaming agent, leveling agent, cosolvent, and anti-skid particles to the dispersing cylinder in proportion, and disperse uniformly at high speed to obtain component A;
[0065] Preparation of component B:
[0066] Add the hydrophilic aliphatic polyisocyanate and the solvent to the dispersing cylinder in proportion, and stir to obtain th...
Embodiment 1
[0069] A water-based two-component anti-skid coating, the preparation process is as follows: the following components are all in parts by weight,
[0070] Preparation of S1 anti-skid particles:
[0071] Put the waste rubber scraps into the pulverizer and pulverize them into 20-40 mesh particles, then use a sand mill for surface roughening treatment, and sieve out the 20-40 mesh rubber particles; : 5:13 ratio into the dispersing tank to mix evenly, gradually complete the steps of washing, filtering and drying, then put the mixed particles into the 1% concentration of silanecoupling agent Z-6040 ethanolaqueous solution to soak, stir slowly for 30min, take out, Dry and reserve.
[0072] Preparation of S2A components:
[0073] (1) Preparation of filler slurry: 20 parts of water, 10 parts of titanium dioxide R902, 20 parts of bariumsulfate (1500-3000 mesh), 20 parts of quartz powder (1250-3000 mesh), 2.5 parts of dispersant BYK190, 0.5 part of Anti-settling agent z18, 2 parts...
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Abstract
The present application provides a water-based two-component anti-skid coating and a preparation method thereof, belonging to the technical field of water-based coatings. Hydrophilic aliphatic polyisocyanate, solvent; the mass ratio of component A to component B is 5:1. Wherein, the matrix resin includes: hydroxy acrylic resin and hydroxyl terminated silicone resin; the filler paste includes: wear-resistant resin, siliconepolymer and the like. The hydroxyl-terminated silicone resin contains hydroxyl groups, which can participate in the reaction and improve the degree of cross-linking. The silicone component is introduced into the resin to synergize with the silicone polymer. The principle of Si‑O‑Si bond accumulation on the surface of the paint film during the curing process is used. , Improve the hardness, weather resistance, chemical resistance and scratch resistance of the paint film; adjust the overall hydroxyl value of the resin, control the reaction speed with the curing agent, complete the bubble export process, and make the paint film thick without foaming; Surface treatment technology to increase its bonding force with resin.
Description
technical field [0001] The present invention relates to the technical field of water-based coatings, and more particularly, to a water-based two-component anti-skid coating and a preparation method thereof. Background technique [0002] At present, most of the anti-skid coatings are oil-based anti-skid coatings, and water-based anti-skid coatings are rarely used. A large amount of volatile organic solvents such as benzene, alcohols, and ketones will be added to oil-based anti-skid coatings, which are inflammable and explosive during production, storage, transportation, and use, and have great harm to human health and environmental safety. The current water-based anti-skid coatings have many shortcomings such as insufficient strength, easy wear, poor chemical resistance, and poor weather resistance. There are mainly three kinds of anti-skid granules currently used. One is inorganic sand, such as quartz sand, siliconcarbide particles, alumina wear-resistant filler, glass mic...
Claims
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Application Information
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