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Solvent-free organic silicon modified epoxy anti-corrosive coating material and preparation method thereof

A technology of epoxy anti-corrosion and coating materials, which is applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of high viscosity and difficult construction, and achieve the effect of strong adhesion, low content and improved performance

Active Publication Date: 2014-09-10
上海华谊精细化工有限公司技术中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of solvent-free epoxy coatings that are too high in viscosity and difficult to apply, and at the same time improve the performance of epoxy resins, the invention provides a solvent-free silicone-modified epoxy resin heavy-duty anti-corrosion coating material and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Weigh 50g of E-20 resin, 50g of methyltrimethoxysilane in a beaker and heat to 60°C to dissolve, making it a uniform transparent liquid. Take 30g of the above resin, 5g of butyl acetate, 60g of micaceous iron oxide ash, and 4g of talcum powder , 0.5g of bentonite, and 0.5g of BYK203 were first dispersed in a grinding tank at high speed for 15 minutes, and then about 80g of glass beads were added for sand grinding until the fineness was less than 80μm, and then filtered into component A.

[0032] Select 3-aminopropylmethyltriethoxysilane as the curing agent of component B, stir and mix component A and component B at a mass ratio of 100:3.3 to prepare an anti-corrosion coating material, which is sprayed by air, Apply by high pressure airless spray, brush, roller.

[0033] The anticorrosion paint performance that makes according to above-mentioned method is as follows: adhesion: 1 grade, hardness: 2H, impact (50cm): pass, salt spray (1000h): paint film has no foaming, no p...

Embodiment 2

[0035] Weigh 60g of E-20 resin, 40g of 3-glycidyl etheroxypropylmethyldiethoxysilane, heat it to 60°C in a beaker and dissolve it to make it a uniform transparent liquid, take 40g of the above resin, 5g of butyl acetate, 50.0 G titanium dioxide, 4g talcum powder, 0.5g bentonite, 0.5g BYK203 are dispersed in a grinding tank at high speed for 15 minutes, then add about 80g of glass beads for sand grinding until the fineness is less than 80μm, and then filter to form A component.

[0036] Select 3-aminopropylmethyltriethoxysilane as the curing agent for component B, stir and mix component A and component B at a mass ratio of 100:12.4 to prepare an anti-corrosion coating material, which is sprayed by air, Apply by high pressure airless spray, brush, roller.

[0037] The anticorrosion paint performance that makes according to above-mentioned method is as follows: adhesion: 1 grade, hardness: 2H, impact (50cm): pass, salt spray (1000h): paint film has no foaming, no peeling off, 3% ...

Embodiment 3

[0039]Weigh 50g of E-51 resin, 50g of diphenyldimethoxysilane and heat to 60°C in a beaker to dissolve, making it a uniform transparent liquid. Take 30g of the above resin, 5g of butyl acetate, 60g of mica iron oxide ash, 3.5 G talcum powder, 1.0g bentonite, and 0.5g BYK203 are dispersed in a grinding tank at high speed for 15 minutes, then add about 80g of glass beads for sand grinding until the fineness is less than 80μm, and then filter to form A component.

[0040] Select bis(3-trimethoxysilylpropyl)amine as the curing agent for component B, stir and mix component A and component B at a mass ratio of 100:26.1 to prepare an anti-corrosion coating material, and use air Apply by spraying, high pressure airless spraying, brushing, roller coating.

[0041] The anticorrosion paint performance that makes according to above-mentioned method is as follows: adhesion: 1 grade, hardness: 2H, impact (50cm): pass, salt spray (1000h): paint film has no foaming, no peeling off, 3% sodium ...

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Abstract

The invention relates to a solvent-free organic silicon modified epoxy anti-corrosive coating material and a preparation method thereof. The anti-corrosive coating material comprises components A and B. The component A is an epoxy antirust paint which comprises the following components in percentage by weight: 10-30% of epoxy resin, 5-20% of alkoxy silane, 30-70% of pigments and filler, 0.5-2% of an assistant and 0-5% of a solvent. The component B is a curing agent which comprises amino-containing siloxane. When the compound B is cured with the component A, the weight ratio of the component A to the component B is 100:1-100:80. The solvent-free organic silicon modified epoxy anti-corrosive coating material overcomes the deficiency that the constructability is poor due to high viscosity and meanwhile improves the performance of epoxy resin, has strong adhesive force and excellent acid and alkali corrosion performances and has the characteristics of low content of organic volatile compounds (OVC), so that the solvent-free organic silicon modified epoxy anti-corrosive coating material meets the environmental requirement.

Description

technical field [0001] The invention relates to an anti-corrosion coating material in the field of chemistry, in particular to a solvent-free silicone-modified epoxy anti-corrosion coating material for steel structure surfaces and a preparation method thereof. Background technique [0002] The volatile organic compounds (VOC) contained in the paint will cause serious pollution to the atmosphere, affect the ecological environment, and damage human health at the same time. With the enhancement of people's awareness of environmental protection, coatings are gradually developing towards high solid content, solvent-free and water-based. [0003] Due to the relatively harsh corrosion environment of anti-corrosion coatings, the anti-corrosion performance of water-based coatings is often difficult to meet the requirements, and it is easy to cause flash rust during construction. Generally speaking, water-based coatings are difficult to use in industrial heavy anti-corrosion fields. ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/12
Inventor 王娴娴牟迪许季海
Owner 上海华谊精细化工有限公司技术中心
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