Organic framework modified epoxy resin scratch-resistant water-based coating

A technology of epoxy resin and organic framework, which is applied in the direction of epoxy resin coating, coating, metal material coating process, etc., and can solve problems such as scratches, loss of gloss, and reduction of coating performance and service life.

Inactive Publication Date: 2020-10-23
ANHUI XINDALU SPECIAL PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because during the use of the paint, the coating is easily scratched and damaged, resulting in loss of gloss, scratches, and affecting the appearance of the paint film, thereby reducing the performance and service life of the paint
At present, ordinary epoxy resin coatings, due to their high degree of crosslinking during the curing process, have small mobility between molecular chains, are relatively brittle, and have poor scratch resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An organic skeleton modified epoxy resin anti-scratch water-based paint, the specific process is as follows:

[0021] 1) Weigh an appropriate amount of graphene oxide, roughen, sensitize and activate it, and then select copper sulfate 8g / L, nickel sulfate 0.6g / L, sodium citrate 13g / L, sodium hypophosphite 26g / L L, boric acid 25g / L, configured as an electroless plating solution, at room temperature, according to the mass volume ratio of 1:30g / ml, added reduced graphene to the plating solution, adjusted the pH to 11, and reacted for 7 minutes. After natural precipitation, centrifugation, washing, drying and crushing and grinding, nano-scale copper-coated graphene can be produced;

[0022] 2) By weight fraction, weigh 4 parts of cobalt chloride and 4 parts of manganese nitrate, dissolve in 100 parts of N,N-dimethylformamide solution, add 8 parts of terephthalic acid and 0.5 Copper-coated graphene, then transferred to a polytetrafluoroethylene-lined stainless steel autocla...

Embodiment 2

[0034] An organic skeleton modified epoxy resin anti-scratch water-based paint, the specific process is as follows:

[0035] 1) Weigh an appropriate amount of graphene oxide, roughen, sensitize and activate it, and then select copper sulfate 10g / L, nickel sulfate 0.8g / L, sodium citrate 15g / L, sodium hypophosphite 28g / L L, boric acid 27g / L, configured as an electroless plating solution, at room temperature, according to the mass volume ratio of 1:35g / ml, added reduced graphene to the plating solution, adjusted the pH to 11, and reacted for 7 minutes. After natural precipitation, centrifugation, washing, drying and crushing and grinding, nano-scale copper-coated graphene can be produced;

[0036] 2) By weight fraction, weigh 5 parts of cobalt chloride and 5 parts of manganese nitrate, dissolve in 120 parts of N,N-dimethylformamide solution, add 10 parts of terephthalic acid and 1.0 parts of Copper-coated graphene, then transferred to a polytetrafluoroethylene-lined stainless st...

Embodiment 3

[0046] An organic skeleton modified epoxy resin anti-scratch water-based paint, the specific process is as follows:

[0047] 1) Weigh an appropriate amount of graphene oxide, roughen, sensitize and activate it, and then select copper sulfate 12g / L, nickel sulfate 1.0g / L, sodium citrate 16g / L, sodium hypophosphite 30g / L L, boric acid 30g / L, configured as an electroless plating solution, at room temperature, according to the mass volume ratio of 1:40g / ml, add reduced graphene to the plating solution, adjust the pH to 12, react for 3min, after the reaction is completed After natural precipitation, centrifugation, washing, drying and crushing and grinding, nano-scale copper-coated graphene can be produced;

[0048]2) In terms of weight fraction, weigh 6 parts of cobalt chloride and 6 parts of manganese nitrate, dissolve them in 150 parts of N, N-dimethylformamide solution, add 12 parts of terephthalic acid and 1.5 parts of Copper-coated graphene, then transferred to a polytetrafl...

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PUM

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Abstract

The invention discloses an organic framework modified epoxy resin scratch-resistant water-based coating, and relates to the technical field of coating processing. The specific process comprises the following steps of: (1) treating graphene oxide, and carrying out chemical copper plating; (2) preparing a powdery organic metal framework material compound by using cobalt chloride, manganese nitrate,terephthalic acid and copper-plated graphene as precursors; (3) introducing the organic metal framework material compound in the synthesis process of epoxy resin to obtain modified epoxy resin; and (4) emulsifying the organic metal framework modified epoxy resin to obtain an epoxy resin emulsion, and uniformly dispersing the epoxy resin emulsion and the prepared raw materials. According to the invention, the organic metal framework material compound with good stability and flexibility is introduced into the epoxy resin, so that the epoxy resin polymer network forms powerful high-toughness chemical connection, the epoxy resin molecular chain is not easy to slip, the deformation can be completely recovered after the external force is removed, and the scratch resistance of the coating is improved.

Description

technical field [0001] The invention belongs to the technical field of paint treatment, and in particular relates to an organic skeleton modified epoxy resin anti-scratch water-based paint. Background technique [0002] Epoxy coatings are high-performance coatings with a wide range of applications. It has many advantages, including strong adhesion to various substrates, high hardness of the coating, good water and chemical resistance, high wear resistance, etc. It can be used as floor, floor coating, metal anti-corrosion Rust primer, marine paint, etc. But at present, most epoxy resin coatings are solvent-based coatings, which contain a large amount of volatile organic compounds. Organic compounds are poisonous, flammable, pollute the atmosphere, and cause harm to the environment and human body. With the advancement of science, people's requirements for environmental protection are increasing day by day, and the voice of using water-based coatings is increasing day by day....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/62C09D7/61C09D7/63C23C18/40C23C18/18
CPCC08K2201/011C08L2205/025C08L2205/035C09D163/00C23C18/1893C23C18/40C09D7/61C09D7/62C09D7/63C08L71/02C08L63/00C08K13/06C08K9/02C08K3/042C08K3/16C08K3/28C08K5/092
Inventor 王保军拾振洪李海洋金传亮回留柱王家振
Owner ANHUI XINDALU SPECIAL PAINT CO LTD
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