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A kind of solvent-free epoxy coating and its preparation, use method

An epoxy coating, solvent-free technology, applied in the direction of epoxy resin coating, anti-corrosion coating, coating, etc., can solve the problems of brittle paint film, short service life, mechanical strength decline, etc., achieve good penetration and improve adhesion The effect of strong force and compactness

Active Publication Date: 2018-05-15
LANGFANG JINGLONG ANTI CORROSIVE ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing solvent-free epoxy coatings also have obvious disadvantages, such as short service life, brittle paint film, and sharp decline in mechanical strength over time.

Method used

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  • A kind of solvent-free epoxy coating and its preparation, use method
  • A kind of solvent-free epoxy coating and its preparation, use method
  • A kind of solvent-free epoxy coating and its preparation, use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A primer for solvent-free epoxy coatings, mainly made of the following raw materials in parts by weight: 50kg of epoxy resin E51, 5kg of reactive diluent H62 (CAS No.: 2210-79-9), 11kg of sericite , 1kg of pigment, 4kg of active modified powder filler, 1kg of coupling agent KH560, 15kg of amine curing agent, 0.3kg of leveling agent, 0.3kg of dispersant, 0.3kg of defoamer, 0.3kg of anti-settling agent, 0.8 kg of anti-sagging agent.

[0039] The preparation method of the primer of above-mentioned solvent-free epoxy paint, comprises the following steps:

[0040] 1) In the baking room, heat the epoxy resin to 75°C, keep the temperature for 10 hours, then move it into the reaction kettle, add active diluent to the reaction kettle, and stir evenly at the speed of 400r / min;

[0041] 2) Add leveling agent, dispersant, defoamer, anti-sedimentation agent and anti-sagging agent to the reactor in sequence, and keep stirring at a speed of 400r / min;

[0042] 3) Add pigments into th...

Embodiment 2

[0048] A primer for solvent-free epoxy coatings, mainly made of the following raw materials in parts by weight: 60kg of epoxy resin E51, 9kg of reactive diluent H62 (CAS No.: 2210-79-9), 15kg of sericite , 24kg of pigment, 8kg of active modified powder filler, 3kg of coupling agent KH560, 19kg of amine curing agent, 0.5kg of leveling agent, 0.5kg of dispersant, 0.5kg of defoamer, 1kg of anti-settling agent, 1kg of Anti-sagging agent.

[0049] The preparation method of the primer of above-mentioned solvent-free epoxy paint, comprises the following steps:

[0050] 1) In the baking room, heat the epoxy resin to 85°C, keep the temperature for 14 hours, then move it into the reaction kettle, add active diluent to the reaction kettle, and stir evenly at the speed of 600r / min;

[0051] 2) Add leveling agent, dispersant, defoamer, anti-sedimentation agent and anti-sagging agent to the reactor in sequence, and keep stirring at a speed of 600r / min;

[0052] 3) Add pigments into the re...

Embodiment 3

[0058] A primer for solvent-free epoxy coatings, mainly made of the following raw materials in parts by weight: 55kg of epoxy resin E51, 7kg of active diluent H62 (CAS No.: 2210-79-9), 13kg of sericite , 12kg of pigment, 6kg of active modified powder filler, 2kg of coupling agent KH560, 17kg of amine curing agent, 0.4kg of leveling agent, 0.4kg of dispersant, 0.4kg of defoaming agent, 0.6kg of anti-settling agent, 0.9 kg of anti-sagging agent.

[0059] The preparation method of the primer of above-mentioned solvent-free epoxy paint, comprises the following steps:

[0060] 1) In the baking room, heat the epoxy resin to 80°C, keep the temperature for 12 hours, then move it into the reaction kettle, add active diluent to the reaction kettle, and stir evenly at the speed of 500r / min;

[0061] 2) Add leveling agent, dispersant, defoamer, anti-sedimentation agent and anti-sagging agent to the reactor in sequence, and keep stirring at a speed of 500r / min;

[0062] 3) Add pigments i...

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Abstract

The invention relates to a solvent-free epoxy paint and its preparation and application methods. The beneficial effects of the present invention are: according to different contact surfaces during use, different raw materials and proportions are used respectively, and the performance advantages of different coating materials are used to form a multi-component composite coating on the surface of the substrate, so that the entire coating has High bonding strength, good corrosion resistance and wear resistance.

Description

technical field [0001] The invention belongs to the field of environmental protection coatings, and in particular relates to a solvent-free epoxy coating and its preparation and use methods. Background technique [0002] At present, countries all over the world have higher and higher requirements on the environment, especially in some developed countries, the content of volatile organic compounds (VOC) in coatings has been restricted, and the emission of volatile organic compounds has also been restricted. As a developing country, in order to catch up with the world's advanced level, take the road of sustainable development, avoid taking the detour of pollution first and then treatment, improve our environmental protection requirements, research and develop an environmentally friendly, low-volatile organic compound content paint is necessary. [0003] Under the above background, solvent-free epoxy coatings emerged as the times require. The biggest feature of solvent-free ep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/62B05D7/14B05D7/24B05D1/36
Inventor 胡玉明杜秀玲
Owner LANGFANG JINGLONG ANTI CORROSIVE ENG CO LTD