Environment-friendly water-based paint coating and preparation method thereof

Abstract

The invention discloses an environment-friendly water-based paint coating and a preparation method thereof. By adding poly(caprolactone)diol, polytetrahydrofuran glycol, N, N-dialkyl-p-aminostyrene, 1, 4-butanediol, amino ethyl acrylate, 2-hydroxyethyl methacrylate, 2, 2-dimethylolpropionic acid and methylenediphenyl diisocyanate, the brightness of the prepared water-based paint is higher; meanwhile, the anti-pollution capability and the environmental protection property of the water-based paint are ensured; by adding acetone, the acid-base stability of the prepared water-based paint is effectively guaranteed; and by mixing polyethylene glycol methacrylate and succinimide with SiO2 sol, the prepared water-based paint is higher in surface adhesion force and not prone to cracking after beingsprayed.

Description

technical field [0001] The invention relates to the technical field of water-based paint preparation, in particular to an environmentally friendly water-based paint coating and a preparation method thereof. Background technique [0002] Water-based paint is a paint that uses water as a diluent and does not contain organic solvents. It does not contain benzene, toluene, xylene, formaldehyde, and free TDI toxic heavy metals. It is non-toxic, non-irritating, harmless to humans, and does not pollute the environment. Plump, crystal clear, good flexibility and has the characteristics of water resistance, wear resistance, aging resistance, yellowing resistance, fast drying and convenient use. Can be used on wood, metal, plastic, glass, building surfaces and many other materials. [0003] The patent document (201811300942.6) discloses a water-based paint. The water-based paint has strong adhesion to various substrates, good fullness, quick drying, high gloss, good water resistance,...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of environmental protection water-based paint coating and preparation method thereof, solve the following technical problems: (1) by adding polycaprolactone diol, polytetrahydrofuran diol, N, N-dialkyl-p-aminobenzene Ethylene, 1,4-butanediol, aminoethyl acrylate, 2-hydroxyethyl methacrylate, 2,2-dimethylolpropionic acid, diphenylmethane diisocyanate, make the prepared water-based paint brightness Higher, while ensuring the anti-pollution ability and environmental protection of water-based paints, while the addition of acetone effectively ensures the acid-base stability of the prepared water-based paints, by combining polyethylene glycol methacrylate and succinimide with SiO 2 The sol is mixed, so that the prepared water-based paint makes the surface of the water-based paint stronger, and it is not easy to crack after spraying. The dry scratch resistance test is carried out according to the AS1580.403.1-1999 scratch resistance test standard, and the prepared environmentally friendly water-based paint coating The dry anti-scratch wall gloss retention rate is 98-98.5%. According to the ASTMB117 test of the rust area test, the corrosion rate is 3-4%. It solves the technical problem that the water-based paint is not scratch-resistant and easy to rust in the prior art. ; (2) Pour the water-based paint into the paint storage box for storage. When spraying is required, move the mobile frame to the side of the wall to be sprayed, point the spray head on the spray chamber to the wall to be sprayed, turn on the vibration motor, and the third motor , the vibration motor excites the water-based paint in the inner cavity through the side wall of the paint storage box, and at the same time the output shaft of the third motor drives a number of pulleys to rotate, the pulley drives the first connecting piece to rotate through the transmission rod, and the first connecting piece drives the second connecting piece Rotate, the two second connecting pieces drive the corresponding lifting plate to rise and fall periodically in the paint storage box, and then drive the water-based paint in the paint storage box to roll up and down, solving the problem of easy precipitation in the water-based paint spraying equipment in the prior art, resulting in The technical problem of uneven sprayed paint; (3) The output shaft of the second motor drives the conveying screw to rotate, the water-based paint enters the conveying cylinder through the paint inlet pipe at the bottom of the paint storage box, and the conveying screw discharges the water-based paint into the spray chamber, Then the water-based paint is sprayed out through the spray head, the output shaft of the fourth motor drives the screw to rotate, and the screw drives the lifting support plate through the nut to adjust the spray height of the spray chamber. Adjust the position of the injection chamber to complete the spraying at different heights of the injection head. The piston rods of the two telescopic cylinders drive the two buffer columns to move through the fixed sleeve, and the two buffer columns drive the conveying cylinder to move through the sleeve. The spraying chamber moves, and at the same time, the distance between the delivery cylinder and the spraying head changes, and the spraying rate of the spraying head changes. The output shaft of the first motor drives the gear to rotate, and the gear drives the translation plate to move horizontally through the rack, and then drives the spraying chamber and The distance adjustment of the wall solves the technical problem that the spray rate of the paint in the spraying process of the water-based paint in the prior art needs to be adjusted by adjusting the speed of the conveying screw, which is inconvenient to adjust, and the spray distance and height adjustment are inconvenient

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