CN103937382A - Coil coating and preparation method thereof - Google Patents

Abstract

The invention relates to a coil coating, which is prepared from the following raw materials by weight part: 50-55 of polyester resin, 10-14 of epoxy resin, 6-8 of isocyanate, 6-9 of rosin maleic anhydride polyol ester, 0.3-0.4 of hydrogenated castor oil, 1-2 of starch ether, 6-9 of triacetin, 3-5 of diethylene glycol, 5-8 of dimethylbenzene, 3-5 of butyl acetate, 0.3-0.5 of methyl cellulose, 4-6 of o-xylene acid dibutylester, 10-15 of magnesium carbonate, and 4-6 of an adhesion assistant. The coating provided by the invention has good adhesion, strong universality, and outstanding weather resistance and flexibility. By adding the rosin maleic anhydride polyol ester, the hardness, water resistance and dryness of the coating are improved. By adding magnesium carbonate, the thermal insulation and fire resistance of the coating are enhanced. The coating has good adhesion to a variety of materials.

Description

A kind of coil coating and preparation method thereof

Technical field

The invention belongs to paint field, relate in particular to a kind of coil coating and preparation method thereof.

Background technology

The use field of coating is a lot of now, owing to being often exposed among atmosphere, be subject to the erosion of oxygen, moisture etc., easily cause the phenomenons such as corrosion of metal, foxy, cement weathering, along with the raising of people's living standard, requirement to coating each side all increases, especially the requirement of the aspects such as performance such as the hardness to coating, wear resistance, fullness ratio, shock-resistance, ageing resistance, anticorrosion, waterproof, grease proofing, chemicals-resistant, fast light, heatproof is more and more higher, therefore needs the more progressive coating of research to meet people's needs.

Summary of the invention

The object of the present invention is to provide a kind of coil coating and preparation method thereof, this paint adhesion is good, highly versatile, and weather resisteant, snappiness are given prominence to, and insulation and fire performance are good.

Technical scheme of the present invention is as follows:

A kind of coil coating, is characterized in that being made up of the raw material of following weight part: vibrin 50-55, epoxy resin 10-14, isocyanic ester 6-8, Rosin Maleic polyol ester 6-9, hydrogenated castor oil 0.3-0.4, starch ethers 1-2, vanay 6-9, Diethylene Glycol 3-5, dimethylbenzene 5-8, butylacetate 3-5, methylcellulose gum 0.3-0.5, o-Xylol dibutyl phthalate 4-6, magnesiumcarbonate 10-15, adhere to auxiliary agent 4-6;

The described auxiliary agent that adheres to is made up of the raw material of following weight part: thiosinamine 0.2-0.3, Silane coupling agent KH550 0.4-0.6, butyl acrylate 3-5,1,6 hexanediol diacrylate 4-7, urethane resin 6-8, chlorinated polypropylene 7-9, Tenox PG 2-3, tripoly phosphate sodium STPP 2-3, dicumyl peroxide 0.1-0.2, Isooctyl acrylate monomer 5-7, ethyl acetate 10-15, propyl carbinol 10-15, oleum lini 1-2, wet nurse fruit oily 1-2, succsinic acid 0.2-0.3; Making method is: ethyl acetate, propyl carbinol, oleum lini, wet nurse fruit oil are mixed, under 3000-4000 rev/min, add urethane resin, chlorinated polypropylene, after dissolving, add again butyl acrylate, 1,6-hexanediyl ester, stir 20-30 minute, add other remaining components, be heated to 80-90 DEG C, stirring reaction 30-50 minute, to obtain final product.

The preparation method of described coil coating, is characterized in that comprising the following steps:

(1) prepare A component: Diethylene Glycol, dimethylbenzene, butylacetate are mixed, under 6000-8000 rev/min, add hydrogenated castor oil, stir 10-15 minute, add again epoxy resin, vibrin, Rosin Maleic polyol ester, stir 1-2 hour, ultrasonic dispersion 7-10 minute, makes A component;

(2) prepare B component: in airtight agitator, isocyanic ester, o-Xylol dibutyl phthalate are mixed, under 6000-8000 rev/min, stir 20-30 minute, make B component;

(3) other remaining components are mixed, add A component and B component, stir and grind to form slurry and get final product.

Beneficial effect of the present invention

Paint adhesion of the present invention is good, highly versatile, and weather resisteant, snappiness are given prominence to; By adding Rosin Maleic polyol ester, increase hardness, water tolerance and the drying property of coating; By adding magnesiumcarbonate, strengthen insulation and the fire performance of coating, this coating all has good adhesion property to various materials.

Embodiment

A kind of coil coating, by following weight part (kilogram) raw material make: vibrin 53, epoxy resin 12, isocyanic ester 7, Rosin Maleic polyol ester 7, hydrogenated castor oil 0.4, starch ethers 1.5, vanay 7, Diethylene Glycol 4, dimethylbenzene 7, butylacetate 4, methylcellulose gum 0.4, o-Xylol dibutyl phthalate 5, magnesiumcarbonate 13, adhere to auxiliary agent 5;

Described adhere to auxiliary agent by following weight part (kilogram) raw material make: thiosinamine 0.2, Silane coupling agent KH550 0.5, butyl acrylate 4,1,6 hexanediol diacrylate 5, urethane resin 7, chlorinated polypropylene 8, Tenox PG 2.5, tripoly phosphate sodium STPP 2.5, dicumyl peroxide 0.1, Isooctyl acrylate monomer 6, ethyl acetate 13, propyl carbinol 13, oleum lini 1.5, wet nurse fruit oil 1.5, succsinic acid 0.2; Making method is: ethyl acetate, propyl carbinol, oleum lini, wet nurse fruit oil are mixed, under 3500 revs/min, add urethane resin, chlorinated polypropylene, after dissolving, add again butyl acrylate, 1,6-hexanediyl ester, stir 25 minutes, add other remaining components, be heated to 85 DEG C, stirring reaction 40 minutes, to obtain final product.

The preparation method of described coil coating, comprises the following steps:

(1) prepare A component: Diethylene Glycol, dimethylbenzene, butylacetate are mixed, under 7000 revs/min, add hydrogenated castor oil, stir 13 minutes, add again epoxy resin, vibrin, Rosin Maleic polyol ester, stir 1.5 hours, ultrasonic dispersion 9 minutes, makes A component;

(2) prepare B component: in airtight agitator, isocyanic ester, o-Xylol dibutyl phthalate are mixed, under 7000 revs/min, stir 25 minutes, make B component;

(3) other remaining components are mixed, add A component and B component, stir and grind to form slurry and get final product.

This coating artificial ageing resistance 3700 hours, coating thicknesses of layers under the prerequisite that keeps low-luster and high-wearing feature reaches more than 30 microns, and sticking power is 1 grade, resistance to impact shock >=55kgcm, snappiness is 1mm.

Claims (2)

1. a coil coating, is characterized in that being made up of the raw material of following weight part: vibrin 50-55, epoxy resin 10-14, isocyanic ester 6-8, Rosin Maleic polyol ester 6-9, hydrogenated castor oil 0.3-0.4, starch ethers 1-2, vanay 6-9, Diethylene Glycol 3-5, dimethylbenzene 5-8, butylacetate 3-5, methylcellulose gum 0.3-0.5, o-Xylol dibutyl phthalate 4-6, magnesiumcarbonate 10-15, adhere to auxiliary agent 4-6;

The described auxiliary agent that adheres to is made up of the raw material of following weight part: thiosinamine 0.2-0.3, Silane coupling agent KH550 0.4-0.6, butyl acrylate 3-5,1,6 hexanediol diacrylate 4-7, urethane resin 6-8, chlorinated polypropylene 7-9, Tenox PG 2-3, tripoly phosphate sodium STPP 2-3, dicumyl peroxide 0.1-0.2, Isooctyl acrylate monomer 5-7, ethyl acetate 10-15, propyl carbinol 10-15, oleum lini 1-2, wet nurse fruit oily 1-2, succsinic acid 0.2-0.3; Making method is: ethyl acetate, propyl carbinol, oleum lini, wet nurse fruit oil are mixed, under 3000-4000 rev/min, add urethane resin, chlorinated polypropylene, after dissolving, add again butyl acrylate, 1,6-hexanediyl ester, stir 20-30 minute, add other remaining components, be heated to 80-90 DEG C, stirring reaction 30-50 minute, to obtain final product.

2. the preparation method of coil coating according to claim 1, is characterized in that comprising the following steps:

(1) prepare A component: Diethylene Glycol, dimethylbenzene, butylacetate are mixed, under 6000-8000 rev/min, add hydrogenated castor oil, stir 10-15 minute, add again epoxy resin, vibrin, Rosin Maleic polyol ester, stir 1-2 hour, ultrasonic dispersion 7-10 minute, makes A component;

(2) prepare B component: in airtight agitator, isocyanic ester, o-Xylol dibutyl phthalate are mixed, under 6000-8000 rev/min, stir 20-30 minute, make B component;

(3) other remaining components are mixed, add A component and B component, stir and grind to form slurry and get final product.