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High finish-degree epoxy modified hydroxyl group aliphatic resin radical anti-pollution corrosion-proof coating material

A hydroxyl aliphatic and epoxy modification technology, applied in anti-corrosion coatings, anti-fouling/underwater coatings, polyurea/polyurethane coatings, etc., can solve problems such as affecting service life, poor durability, and rapid decline in stain resistance

Inactive Publication Date: 2008-01-02
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The principle of action of antifouling coating materials is mainly based on the following aspects: (1) The surface energy of the coating is lower than the surface energy of the pollutants, making it difficult for pollutants to stably attach to the surface of the coating, mainly concentrated in organic fluorine (overall high fluorine or local high fluorine) low surface coating preparation, silicone stain-resistant coatings, fluorine-silicon stain-resistant coatings, due to the toxicity and high price of fluororesins, the application of such anti-fouling self-cleaning exterior wall coatings is limited; (2) Preparation of superhydrophobic self-cleaning exterior wall coatings simulating the lotus leaf effect (contact angle of 150-160 degrees), the contact angle of which can reach 95 degrees; (3) Stain-resistant coatings based on hydrophilic surfaces, hydrophilic Due to the lower resistance value of the coating surface, it is not easy to accumulate charges, so it is not easy to absorb dust and other pollutants, but the durability of the paint film is poor, and with the leaching of hydrophilic substances, the pollution resistance decreases rapidly; (4) based on " Micronized paint film anti-fouling coatings use the coating surface to degrade and peel off the powdered layers under the action of ultraviolet rays to maintain the freshness of the coating surface. The durability of the coating is poor and is limited by rainfall
(5) Based on the "super-hydrophilic" stain-resistant coating materials caused by photocatalytic materials, due to the efficiency of photocatalysis and the decomposition of organic film-forming materials by catalytic materials, the aging of paint film resins is accelerated, thus affecting service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: Take the preparation of 1000g of component A as an example.

[0034] 1. Prepare 300g of mixed liquid with xylene and butyl acetate in a ratio of 2:1 by weight, and set aside;

[0035] 2. Weigh 400g E10 modified hydroxyaliphatic resin;

[0036] 3. Weigh 80g of dibutyl phthalate;

[0037] 4. Weigh 50g cyclohexanone;

[0038] 5. Add the above materials into a high-speed disperser and stir until they are uniformly dispersed; only add 150g of the materials in step 1, and add the rest as appropriate later.

[0039] 6. Weigh 150g of rutile titanium dioxide, 60g of talc powder, 40g of kaolin, and 10g of organic bentonite, respectively, and add them to the high-speed disperser that has been filled with materials for uniform stirring.

[0040] 7. Weigh the anatase nano-TiO 2 For: 3g, amorphous nano-SiO 2 2 g was added to the blender above.

[0041] 8. Grind the homogeneously stirred material through a three-roller mill for two to three times until the fineness o...

Embodiment 2

[0048] Embodiment 2: Take the preparation of 1000g of component A as an example.

[0049] 1. Prepare 300g of mixed liquid with xylene and butyl acetate in a ratio of 2:1 by weight, and set aside;

[0050] 2. Weigh 450g E10 modified hydroxyaliphatic resin;

[0051] 3. Weigh 60g of dibutyl phthalate;

[0052] 4. Weigh 40g cyclohexanone;

[0053] 5. Add the above materials into a high-speed disperser and stir until they are uniformly dispersed; only add 150g of the materials in step 1, and add the rest as appropriate later.

[0054] 6. Weigh 100g of rutile titanium dioxide, 80g of talc powder, 60g of kaolin, and 9g of organic bentonite, respectively, and add them to the high-speed disperser that has been filled with materials for uniform stirring.

[0055] 7. Weigh the anatase nano-TiO 2 For: 4g, amorphous nano-SiO 2 4 g was added to the blender above.

[0056] 8. Grind the homogeneously stirred material through a three-roller mill for two to three times until the fineness ...

Embodiment 3

[0063] Embodiment 3: Take the preparation of 1000g of component A as an example.

[0064] 1. Prepare 300g of mixed liquid with xylene and butyl acetate in a ratio of 2:1 by weight, and set aside;

[0065] 2. Weigh 500g E10 modified hydroxyaliphatic resin;

[0066] 3. Weigh 50g of dibutyl phthalate;

[0067] 4. Weigh 30g cyclohexanone;

[0068] 5. Add the above materials into a high-speed disperser and stir until they are uniformly dispersed; only add 150g of the materials in step 1, and add the rest as appropriate later.

[0069] 6. Weigh 80g of rutile titanium dioxide, 100g of talc powder, 80g of kaolin, and 6g of organic bentonite, respectively, and add them to the high-speed disperser that has been filled with materials for uniform stirring.

[0070] 7. Weigh the anatase nano-TiO 2 For: 5g, amorphous nano-SiO 2 5 g was added to the blender above.

[0071] 8. Grind the homogeneously stirred material through a three-roller mill for two to three times until the fineness ...

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Abstract

The invention discloses a dirt resistance and corrosion prevention paint material of a highly polished epoxide modified hydroxyl fatty group resin radical in the paint field, which doesn't have the bibliographical information in the industry field. The component A of the invention comprises the following parts: an epoxide modified hydroxyl fatty group resin, a nanometer anatase TIO2 with photocatalysis function, a highly polished adjuvant, a modified nanometer amorphous SiO2, a color, a filler and the other adjuvant, wherein the filler comprises French chalk and ultra-fine calcinations kaolin, the other adjuvant comprises thickener- the organic alta-mud and the film former-dibutylphthalate, the white color material is titanium dioxide, the component B is isocyanate resin, isocyanate resin : butyl acetate: dimethylbenzene is 4:1-6:1, A:B is 8:1-7:1. The invention has acid-resistant, alkaliresistant, salt-mist-resistance and chemical corrosion resistance, which can avoid the dust pollution.

Description

technical field [0001] The invention relates to a coating material resistant to acid, alkali and salt spray; the composite coating material has high surface gloss, good smoothness and dust pollution resistance. Its coated surface has repellent and decomposing properties against pollutants. Background technique [0002] With the enhancement of environmental protection awareness and the requirements of enterprises for greening and beautification, some iron and steel enterprises have attached great importance to the appearance beautification of anti-corrosion coating while carrying out anti-corrosion treatment of their plant equipment and steel structures. Taking Shouqin Iron and Steel Company (Shougang Qinhuangdao Company) as an example, in order to meet the requirements of beautification of anti-corrosion coating equipment, its anti-corrosion coating cycle is very short (about 3 months). The main reason is that after the anti-corrosion coating of its equipment and steel stru...

Claims

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Application Information

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IPC IPC(8): C09D201/06C09D5/16C09D5/08C09D175/00
Inventor 王金淑杜玉成李洪义杨伟超李岩凌
Owner BEIJING UNIV OF TECH
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