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High-hardness water-borne epoxy resin for environment-friendly coating and preparation method of high-hardness water-borne epoxy resin

A water-based epoxy resin and environmentally friendly coating technology, applied in epoxy resin coatings, coatings, etc., can solve the problems of inability to guarantee the bending and wear resistance of color steel plates, the inability to effectively protect the toughness and rigidity, and the reduction of the use range of color steel plates. , to improve the overall toughness and overall strength, increase the success rate of bonding, and improve the hardness and density.

Inactive Publication Date: 2022-01-04
深圳市深赛尔股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the production of epoxy resin, which is different from paint, the overall strength of epoxy resin is low. At the same time, when epoxy resin is used in the paint of color steel plate, its special adhesion will be able to adhere well to the color steel plate. , but the coating can only play the role of adhesion and filling, and the epoxy resin with insufficient overall strength and hardness will not be able to ensure the flexural and wear resistance of the color steel plate, and at the same time, the hardness, toughness and rigidity cannot effectively protect the color steel plate. Under the circumstances, the scope of use of color steel plates will be greatly reduced, and the service life of color steel plates will also be correspondingly reduced. In order to solve the above technical problems, a high hardness water-based epoxy resin for environmentally friendly coatings is now proposed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of high-hardness water-based epoxy resin that is used for environmental protection paint that the present invention proposes has following raw material composition by weight: 20 parts of epoxy resins, 10 parts of filling materials, 15 parts of silicon dioxide, 8 parts of silicon carbide, 6 parts of defoamer, 6 parts of curing agent, 8 parts of toughening agent, 8 parts of isocyanate solvent, 10 parts of silicate, 4 parts of olivine, and 5 parts of white carbon black.

[0026] The specific composition of the filling material is precipitated calcium carbonate, the curing agent is polyamine, and the defoamer is specifically GP defoamer;

[0027] The above-mentioned high-hardness water-based epoxy resin preparation process includes the following preparation process:

[0028] Put 15 parts of silicon dioxide, 10 parts of silicate, 4 parts of olivine and 5 parts of white carbon black into the reactor to raise the temperature to 700-900°C, then fill the reactor with nitr...

Embodiment 2

[0031] Raw material is consistent with embodiment 1, difference is the change of proportioning

[0032] A kind of high-hardness water-based epoxy resin used for environmental protection paint proposed by the present invention has the following raw material composition by weight: 25 parts of epoxy resin, 5 parts of filling materials, 10 parts of silicon dioxide, 5 parts of silicon carbide, 7 parts of defoamer, 7 parts of curing agent, 9 parts of toughening agent, 5 parts of isocyanate solvent, 11 parts of silicate, 6 parts of olivine, and 10 parts of white carbon black.

[0033] The specific composition of the filling material is precipitated calcium carbonate, the curing agent is polyamine, and the defoamer is specifically GP defoamer;

[0034] The above-mentioned high-hardness water-based epoxy resin preparation process includes the following preparation process:

[0035] Put 10 parts of silicon dioxide, 11 parts of silicate, 6 parts of olivine and 10 parts of white carbon b...

Embodiment 3

[0038] Raw material is consistent with embodiment 1, difference is the change of proportioning

[0039]A kind of high-hardness water-based epoxy resin that is used for environmental protection paint that the present invention proposes has following raw material composition by weight: 25 parts of epoxy resins, 6 parts of filling materials, 11 parts of silicon dioxide, 8 parts of silicon carbide, 6 parts of defoamer, 6 parts of curing agent, 7 parts of toughening agent, 6 parts of isocyanate solvent, 8 parts of silicate, 9 parts of olivine, and 8 parts of white carbon black.

[0040] The specific composition of the filling material is precipitated calcium carbonate, the curing agent is polyamine, and the defoamer is specifically GP defoamer;

[0041] The above-mentioned high-hardness water-based epoxy resin preparation process includes the following preparation process:

[0042] Put 11 parts of silicon dioxide, 8 parts of silicate, 9 parts of olivine and 8 parts of white carbon...

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Abstract

The invention discloses high-hardness water-borne epoxy resin for an environment-friendly coating, relates to the technical field of preparation of high-hardness water-borne epoxy resin, and provides the following scheme aiming at the problems of low hardness, poor fracture resistance, poor wear resistance and the like of water-borne epoxy resin: the high-hardness water-borne epoxy resin comprises the following raw materials in parts by weight: epoxy resin, a filling material, silicon dioxide, silicon carbide, a defoaming agent, a curing agent, a toughening agent, an isocyanate solvent, silicate, olivine and white carbon black. The epoxy resin, the filling material and the flexibilizer are combined for toughening, the overall toughness and the overall strength of the epoxy resin are improved, the overall hardness and the strength of silicon dioxide are improved in a carbon dioxide vapor deposition mode, and meanwhile, the silicon dioxide is granulated in a deposition mode; and the combination success rate of silicon dioxide and epoxy resin is increased, and the rheological property of epoxy resin is effectively improved.

Description

technical field [0001] The invention relates to the technical field of preparation of high-hardness water-based epoxy resin, in particular to a high-hardness water-based epoxy resin used for environmental protection coatings and a preparation method thereof. Background technique [0002] Epoxy resin is a high molecular polymer, which refers to the general term for a class of polymers containing more than two epoxy groups in the molecule. It is a polycondensation product of epichlorohydrin and bisphenol A or polyols. Due to the ring The chemical activity of the oxygen group can be opened by a variety of compounds containing active hydrogen, and cured and crosslinked to form a network structure. Therefore, it is a thermosetting resin. Bisphenol A epoxy resin is not only the largest in output, but also the most complete in variety. Moreover, new modified varieties are still increasing, and the quality is constantly improving. [0003] In the production of epoxy resin, which is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/61C09D7/62
CPCC09D163/00C09D7/61C09D7/62C09D7/70C08K3/26C08K3/36C08K3/34C08K9/04C08K7/26
Inventor 刘国民刘家军徐涛
Owner 深圳市深赛尔股份有限公司
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