Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Self-deposition coating based on acrylic acid/epoxy resin as main material and preparation method and application thereof

An acrylic resin and epoxy resin technology, applied in the field of metal surface treatment and metal coating, can solve the problems of low flexibility of epoxy resin, general adhesion performance, increase operation process, etc., to reduce the burden of sewage treatment, product The effect of low cost and simple construction process

Active Publication Date: 2018-09-04
SHENYANG PARKERIZING
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are currently some disadvantages that hinder the development of this technology. One of them is that the ultrafiltration technology cannot be used for closed-circuit water washing, which leads to a large loss of liquid in the self-deposition coating. In order to achieve higher performance, the self-deposition coating After loading, the wet film should be washed with reactive water
In order to ensure the stability of the reaction water washing bath, it is necessary to monitor the pollution degree of the reaction water washing after self-deposition coating. Once the upper limit of the conductivity is reached, overflow discharge is required, which leads to the pressure of sewage treatment, and the reaction water washing increases the operating process.
[0004] In addition, the general epoxy resin is a two-component system. This kind of resin film is characterized by excellent corrosion resistance and good gloss of the paint film, but the adhesion performance is average. The more prominent problem is the environment. The flexibility of oxygen resin is not high, which is reflected in the results of the cupping test. In addition, the highest curing temperature is about 160 ° C, which is a great challenge for saving energy; while acrylic resin has good adhesion and flexibility. properties, low drying temperature, but poor corrosion resistance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Self-deposition coating based on acrylic acid/epoxy resin as main material and preparation method and application thereof
  • Self-deposition coating based on acrylic acid/epoxy resin as main material and preparation method and application thereof
  • Self-deposition coating based on acrylic acid/epoxy resin as main material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Self-deposition coatings are composed of the following substances in terms of mass percentages:

[0038]

[0039] The pH of the autodeposition coating is 2.5.

[0040] (2) Preparation method: first take about 80% deionized water, add isomeric tridecyl alcohol polyoxyethylene ether into the water under medium and low speed stirring at 200r / min, after stirring evenly, add dodecyl alcohol with medium speed stirring at 500r / min Ester, leveling agent, wetting agent and defoamer, after stirring evenly, add acrylic resin, epoxy resin, water-based wax and color paste with medium-high speed stirring at 1000r / min, stir evenly, add citric acid to adjust the pH to 2.5, and finally Add the remaining deionized water, stir evenly, discharge and filter to remove larger particles.

Embodiment 2

[0042] (1) Self-deposition coatings are composed of the following substances in terms of mass percentages:

[0043]

[0044]

[0045] The pH of the autodeposition coating is 2.5.

[0046] (2) Preparation method: first take about 80% deionized water, add isomeric tridecyl alcohol polyoxyethylene ether into the water under medium and low speed stirring at 200r / min, after stirring evenly, add dodecyl alcohol with medium speed stirring at 500r / min Ester, leveling agent, wetting agent and defoamer, after stirring evenly, add acrylic resin, epoxy resin, water-based wax and color paste with medium-high speed stirring at 1000r / min, stir evenly, add citric acid to adjust the pH to 2.5, and finally Add the remaining deionized water, stir evenly, discharge and filter to remove larger particles.

Embodiment 3

[0048] (1) Self-deposition coatings are composed of the following substances in terms of mass percentages:

[0049]

[0050] The pH of the autodeposition coating is 2.8.

[0051] (2) Preparation method: first take about 80% deionized water, add isomeric tridecyl alcohol polyoxyethylene ether into the water under medium and low speed stirring at 200r / min, after stirring evenly, add dodecyl alcohol with medium speed stirring at 500r / min Ester, leveling agent, wetting agent and defoamer, after stirring evenly, add acrylic resin, epoxy resin, water-based wax and color paste with medium-high speed stirring at 1000r / min, stir evenly, add maleic acid to adjust the pH to 2.8. Finally, add the remaining deionized water, stir evenly, discharge and filter to remove larger particles.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Lusteraaaaaaaaaa
Glossaaaaaaaaaa
Login to View More

Abstract

The invention discloses self-deposition coating based on acrylic acid / epoxy resin as a main material and a preparation method and application thereof, and belong to the technical field of metal coating. The self-deposition coating is prepared from acrylic resin, epoxy resin, organic acid, water-based wax, an emulgator, a coalescing agent, a leveling agent, a wetting agent, color paste and a defoaming agent. Acrylic resin and epoxy resin are blended at the certain proportion, the organic acid is utilized to condition the acidity, so that a formed continuous self-deposition coating has the goodcorrosion resistance and glossiness, as well as the good adhesive force and flexibility, and has the advantages of acrylic resin and epoxy resin simultaneously. A steel base material workpiece subjected to degreasing and acid pickling is dipped into self-deposition working fluid to react to form a layer of even resin coating, the coating has the certain water washing resistance and wet film adhesive force, and after being washed with water and dried, the resin coating has the corrosion resistance similar to common electrophoretic primer.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment and metal coating, and in particular relates to a self-deposition coating based on acrylic / epoxy resin as the main material and its preparation method and application. Background technique [0002] Self-deposition paint is a kind of full-immersion water-based paint that automatically covers the surface of steel substrates through chemical reactions without electricity. The remarkable feature of the coating is that it is directly deposited on the surface of the steel substrate without phosphating pretreatment, and the performance of the formed coating film can be close to that of cathodic electrophoretic coating. The self-deposition coating is composed of resin, pigment, oxidant, acid and water. Through the chemical action of the micro-battery formed by the steel substrate in the acid solution, the latex particles in the self-deposition coating in the solution are demulsified and at...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D133/00C09D163/00C09D7/65C09D7/63
CPCC08L2205/03C09D7/63C09D7/65C09D133/00C09D163/00C08L63/00C08L91/06C08K5/092C08L33/00
Inventor 孟毅张蕾夏雨周宪民
Owner SHENYANG PARKERIZING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com