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Method of producing antisepsis finishing paint

A topcoat and castor oil technology, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of single isocyanate components, hard and brittle paint films, etc., and achieve stable storage performance, strong adhesion, and elasticity Good results

Inactive Publication Date: 2008-04-02
TIANJIN ZHENDONG PAINTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The isocyanate component in the traditional one-component anti-corrosion coating formula is single, and the paint film is hard and brittle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0006] Embodiment: A kind of preparation method of anticorrosion topcoat, put 100g refined castor oil into the reaction flask, heat up to 120 ℃, carry out dehydration under reduced pressure for 2h, vacuum degree -0.09Mpa, cool down to below 40 ℃, add isotropic Mix the 3209 mixed solvent made of propylbenzene and methylcyclohexanone at a ratio of 1:3, stir well, add 40g of diisocyanate, heat up for 0.5h, heat up to 82°C, react for 1h, add 200g of polyisocyanate to continue the reaction, stop the reaction After cooling down to 50°C to obtain a prepolymer; take 660g of the prepolymer into a reaction bottle, add 0.4g of melamine formaldehyde resin, 40g of silver powder, 10% ultraviolet absorber, and mix at a high speed of 40°C for 30 minutes.

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PUM

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Abstract

The present invention discloses a preparation method of antisepsis finishing coat; 100g of refined castor oil is added into a reaction bottle; and the temperature rises to 120 DEG C to make pressure-decreasing and dehydration operation; the temperature decreases to less than 40 DEG C; and then 320g of mixing solvent is added to be milled; after being milled evenly, 40g of diisocyanate is added to be heated for 0.5 hours and the temperature rises to 82 DEG C to be reacted for 1 hour; and then 200g of diisocyanate is added to be reacted continually; after stopping the reaction, the temperature decreases to 50 DEG C so as to obtain pre-protomer; 660g of pre-protomer is added into a reaction bottle, and then 0.4g of cyanogens ammonia formaldehyde resin, 40g of aluminum powder, 10 percent of ultraviolet radiation absorbent are added to be milled for 30 minutes in high speed mode. The present invention has the advantages of much stronger adhesive ability, much better elasticity, tough and smooth, wearable, eroding-resisting to acid, alkali, salt and other common solvent; the storing performance for the present invention is also stable.

Description

technical field [0001] The invention relates to a preparation method of an anti-corrosion finish paint. Background technique [0002] The isocyanate component in the traditional one-component anti-corrosion coating formulation is single, and the paint film is hard and brittle. Contents of the invention [0003] The object of the present invention is to overcome above-mentioned defective, a kind of preparation method of anticorrosion finish paint is provided. [0004] The technical solution of the present invention is: a preparation method of anti-corrosion finish paint, which is characterized in that: put 100g of refined castor oil into the reaction flask, heat up to 120°C, carry out dehydration under reduced pressure for 2h, vacuum degree -0.09Mpa, cool down To below 40°C, add 3209 mixed solvent made by mixing cumene and methylcyclohexanone at a ratio of 1:3 and stir evenly, add 40g of diisocyanate with stirring, heat up for 0.5h, heat up to 82°C, react for 1h, add 200g...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D5/08
Inventor 张云波
Owner TIANJIN ZHENDONG PAINTS CO LTD
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