Unlock instant, AI-driven research and patent intelligence for your innovation.

Environment-friendly cathode electrophoretic coating and preparation process thereof

A cathodic electrophoretic coating and preparation technology, which is applied in the field of coatings, can solve the problems of environmental protection, reduce energy consumption, and high toxicity, and achieve the effects of strong coating ability, good uniformity, and high thermal stability

Inactive Publication Date: 2016-09-28
GUANGDE ZHONGYIN CHEM
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Low-temperature curing cathodic electrophoretic coatings are not only beneficial to the coating of auto parts with plastic and rubber, but also can greatly reduce energy consumption. The organic lead and tin catalysts commonly used in cathodic electrophoretic coatings in the past have disadvantages such as high toxicity and environmental protection. Already restricted in Europe and developed countries

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
  • Environment-friendly cathode electrophoretic coating and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An environment-friendly cathodic electrophoretic coating, comprising, in parts by mass, 1 part of color paste, 4 parts of emulsion and 5 parts of deionized water;

[0033]The color paste formula includes 20 parts of main resin, 5 parts of alcohol ether co-solvent, 3 parts of organic acid, 0.3 part of emulsifier, 1 part of composite drier, 30 parts of deionized water and 15 parts of filler;

[0034] The emulsion formula includes, 40 parts of modified epoxy resin A, 10 parts of modified epoxy resin B, 10 parts of curing agent, 3 parts of diketimine of diethylenetriamine and 2 parts of N-methylethanolamine , 0.1 part of emulsifier, 0.1 part of acetic acid and 30 parts of deionized water; the modified epoxy resin A formula includes, 10 parts of bisphenol A, 40 parts of epoxy resin, 8 parts of solvent, 4 parts of bisphenol A polyoxygen Vinyl ether, 10 parts of polyether diols with a number average molecular weight of 400-1500; the modified epoxy resin B formula includes 10 p...

Embodiment 2

[0040] An environment-friendly cathodic electrophoretic paint, comprising, in parts by mass, 2 parts of color paste, 6 parts of emulsion and 5 parts of deionized water;

[0041] The color paste formula includes 30 parts of main resin, 10 parts of alcohol ether co-solvent, 8 parts of organic acid, 0.7 part of emulsifier, 5 parts of composite drier, 40 parts of deionized water and 20 parts of filler;

[0042] The emulsion formula includes, 50 parts of modified epoxy resin A, 20 parts of modified epoxy resin B, 30 parts of curing agent, ketimine of 4 parts of aminoethylethanolamine and 3 parts of diethanolamine, 2 parts of emulsifier, 1 part of acetic acid and 50 parts of deionized water; the modified epoxy resin A formula includes, 20 parts of bisphenol A, 60 parts of epoxy resin, 16 parts of solvent, 16 parts of bisphenol A polyoxypropylene ether, 35 parts A polyether diamine with an average molecular weight of 400-1500; the modified epoxy resin B formula includes 20 parts of b...

Embodiment 3

[0048] An environment-friendly cathodic electrophoretic paint, comprising, in parts by mass, 2 parts of color paste, 6 parts of emulsion and 5 parts of deionized water;

[0049] The color paste formula includes 15 parts of main resin, 7 parts of alcohol ether co-solvent, 4 parts of organic acid, 0.5 part of emulsifier, 3 parts of composite drier, 35 parts of deionized water and 17 parts of filler;

[0050] The emulsion formula includes, 45 parts of modified epoxy resin A, 15 parts of modified epoxy resin B, 20 parts of curing agent, ketimine of 4 parts of aminoethylethanolamine and 3 parts of diethanolamine, 0.8 part of emulsifier, 0.5 parts of acetic acid and 40 parts of deionized water; the modified epoxy resin A formula includes, 15 parts of bisphenol A, 50 parts of epoxy resin, 12 parts of solvent, 10 parts of bisphenol A polyoxypropylene ether, 25 parts of A polyether diamine with an average molecular weight of 400 to 1500; the modified epoxy resin B formula includes 15 p...

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
particle diameteraaaaaaaaaa
breakdown voltageaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of coating, in particular to environment-friendly cathode electrophoretic coating and a preparation process thereof. The electrophoretic coating is prepared from, by mass, 1-2 parts of color paste, 4-6 parts of emulsion and 5-7 parts of deionized water. The color paste is prepared from 20-30 parts of matrix resin, 5-10 parts of alcohol ether cosolvent, 3-8 parts of organic acid, 0.3-0.7 parts of emulsifier, 1-5 parts of compound drier, 30-40 parts of deionized water and 15-20 parts of filler. A preparation method for the compound drier comprises the steps that one kind of oxalic acid, citric acid, glycolic acid and the like and the deionized water are mixed in a proportion of (1-10):10 and premixed at the temperature of 60-80 DEG C, one hour later, 1-10 parts of a catalyst is added to the mixed liquor in batches in a stirring state, reaction is carried out for 4-10 hours at the temperature of 70-90 DEG C, finally, sediment is filtered out, and the water soluble compound drier is prepared. According to a formula, the emulsion is prepared from 40-50 parts of modified epoxide resin A, 10-20 parts of modified epoxide resin B, 10-30 parts of a curing agent, 3-8 parts of unimolecular amine, 0.1-2 parts of emulsifier, 0.1-2 parts of neutralizer and 30-50 parts of deionized water.

Description

technical field [0001] The invention relates to the field of coatings, in particular to an environment-friendly cathodic electrophoretic coating and a preparation process thereof. Background technique [0002] Since the advent of cathodic electrophoretic coatings, because the formed paint film has excellent corrosion resistance, mechanical properties, and is suitable for automatic coating, it has quickly become popular in the automotive industry. The baking temperature range of traditional cathodic electrophoretic coatings is generally 170 ~180°C. At present, many industrial workpieces are made of rubber, plastic and other materials, which are required to be dried together with electrophoretic coating after processing, so as to reduce the operating intensity of workers and control costs. However, such materials are easily deformed or melted when baked under high temperature conditions. In order to meet the needs of this type of process, there are very few varieties of low-...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/44C09D7/12C09F9/00
CPCC09D163/00C08L2205/025C08L2205/035C09D5/4438C09D5/4457C09F9/00
Inventor 彭德琼
Owner GUANGDE ZHONGYIN CHEM