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A kind of environment-friendly waterborne epoxy coal tar pitch anticorrosion coating and preparation method thereof

An epoxy coal tar pitch, environment-friendly technology, applied in the direction of anti-corrosion coatings, asphalt coatings, coatings, etc., can solve the problems of high VOC, danger, acid and alkali resistance, etc., achieve excellent water resistance, improve mixing efficiency, high The effect of bond strength

Active Publication Date: 2020-09-15
江苏山力漆业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, especially in the anticorrosion field of epoxy coal tar pitch anticorrosion coatings, solvent-based epoxy resin coal tar pitch anticorrosion coatings and solvent-based epoxy resin coal tar anticorrosion coatings are mostly used, which are made of xylene, toluene, butanol, etc. Contains high VOC, which is not conducive to environmental governance and VOC emission reduction
[0004] Moreover, because it is made of xylene, toluene, butanol, etc., the paint liquid is a dangerous chemical, which is not conducive to the storage, transportation, and construction safety management of the paint.
In addition, the epoxy resin anti-corrosion coatings on the market also have defects such as not being resistant to acid and alkali.

Method used

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  • A kind of environment-friendly waterborne epoxy coal tar pitch anticorrosion coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The ratio of the mass parts of the component that present embodiment 1 adopts is as follows:

[0025] Group A: 29.2% of low molecular weight 618 liquid epoxy polymer with epoxy equivalent of 184-200, 23.0% of 660A epoxy resin reactive diluent with epoxy equivalent of 140-167, solid coal tar pitch 35.4%, potassium aluminum silicate 12.4 %;

[0026] Group B: water emulsion aromatic amine curing agent 70.0%, water 29.0%, anti-flash rust additive 1.0%. The mass ratio is: Group A: Group B: = 48:52, and the specific preparation method is as follows:

[0027] Step 1: Preparation of finished product containing epoxy coal tar pitch A component: crushing mass parts is 35.4% solid coal tar pitch; 23.0 mass parts of 660A epoxy resin active diluent with epoxy equivalent 140-167, after pulverizing Add the solid coal tar pitch into the dissolution kettle respectively, heat the jacket of the dissolution kettle to 60°C-80°C, stir and dissolve at a high speed (speed ≥ 800 rpm) to form ...

Embodiment 2

[0031] The ratio of the mass parts of the component that present embodiment 2 adopts is as follows:

[0032] Group A: 30.2% of low molecular weight 618 liquid epoxy polymer with epoxy equivalent of 184-200, 24.5% of 660A epoxy resin reactive diluent with epoxy equivalent of 140-167, solid coal tar pitch 37.7%, potassium aluminum silicate 7.6 %;

[0033] Group B: water emulsion aromatic amine curing agent 86.4%, water 12.6%, anti-flash rust additive 1.0%. The mass ratio is: Group A: Group B: = 53:47, and the specific preparation method is as follows:

[0034] Step 1: Preparation of finished product containing epoxy coal tar pitch A component: pulverized mass parts are 37.7% solid coal tar pitch; Add the solid coal tar pitch to the dissolution kettle respectively, heat the jacket of the dissolution kettle to 60°C-80°C, stir and dissolve at high speed (speed ≥ 800 rpm) to form a uniform viscous liquid, filter it for later use; then add the above viscous liquid to 30.2% by mass...

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Abstract

The invention discloses an environment-friendly waterborne epoxy coal pitch anticorrosive coating and a preparation method thereof and belongs to the field of preparation of coatings. The environment-friendly waterborne epoxy coal pitch anticorrosive coating comprises a component A containing epoxy coal pitch and a component B containing an aqueous curing agent. The component A containing epoxy coal pitch comprises a low molecular weight liquid epoxy polymer, an active liquid epoxy resin, solid coal tar pitch and potassium aluminum silicate. The component B containing the aqueous curing agentcomprises a water-emulsion aromatic amine curing agent, water and an anti-flash rust aid. The coating does not contain any organic or inorganic solvent, has low VOC content, has acid resistance, alkali resistance and oil resistance belonging to the solvent-type epoxy coal tar pitch anticorrosive coating and has a wide application space.

Description

technical field [0001] The invention belongs to the field of coating preparation, and relates to a water-based anti-corrosion coating, in particular to an environment-friendly water-based epoxy coal tar pitch anti-corrosion coating and a preparation method thereof. Background technique [0002] Water-based epoxy resin coating is suitable for steel structure engineering in various hidden parts, buried steel structure water delivery, gas transmission, oil pipeline outer wall, environmental protection facilities, sewage treatment facility inner and outer walls, chemical corrosion medium tank inner wall FRP structure anti-corrosion use . Therefore, various epoxy resin coatings are also widely used. [0003] At present, especially in the anticorrosion field of epoxy coal tar pitch anticorrosion coatings, solvent-based epoxy resin coal tar pitch anticorrosion coatings and solvent-based epoxy resin coal tar anticorrosion coatings are mostly used, which are made of xylene, toluene,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D195/00C09D5/08C09D7/61
CPCC08L2205/025C08L2205/03C09D5/08C09D7/61C09D195/00C08L63/00C08K3/34
Inventor 杨军
Owner 江苏山力漆业有限公司