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

High-corrosion-resistance environment-friendly waterborne epoxy curing agent and preparation method thereof

A technology of water-based epoxy and curing agent, which is applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of poor comprehensive performance and general anti-corrosion performance, and achieve the effect of improving corrosion resistance

Active Publication Date: 2020-10-30
广州惠顺新材料有限公司
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a high anti-corrosion and environment-friendly water-based epoxy curing agent and its preparation in order to solve the technical problem that the epoxy coating system composed of the existing water-based epoxy curing agent has general anti-corrosion performance and poor comprehensive performance. method

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
  • High-corrosion-resistance environment-friendly waterborne epoxy curing agent and preparation method thereof
  • High-corrosion-resistance environment-friendly waterborne epoxy curing agent and preparation method thereof
  • High-corrosion-resistance environment-friendly waterborne epoxy curing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment provides a high anti-corrosion and environment-friendly water-based epoxy curing agent. The components of the curing agent and the quality of each component are as follows:

[0025]

[0026] In the present embodiment, the epoxy value of bisphenol A epoxy resin is 0.48, the molecular weight of polyethylene glycol is 4000, and the mass ratio of isophorone diamine and diethylene triamine is 6.5 in the composite crosslinking agent: 1.

[0027] The present embodiment also provides a kind of preparation method of high anti-corrosion environment-friendly water-based epoxy curing agent, comprising the following steps:

[0028] (1) under normal temperature and normal state, respectively take by weighing 5 grams of bisphenol A epoxy resin and 3 grams of diethylene glycol butyl ether to mix, and stir to dissolve;

[0029] (2) Weigh 45 grams of molten polyethylene glycol and add it to the first container, then add the materials in step (1) to the first container...

Embodiment 2

[0033] This embodiment provides a high anti-corrosion and environment-friendly water-based epoxy curing agent. The components of the curing agent and the quality of each component are as follows:

[0034]

[0035] In the present embodiment, the epoxy value of bisphenol A epoxy resin is 0.5, the molecular weight of polyethylene glycol is 5000, and the mass ratio of isophorone diamine and diethylene triamine is 3.3 in the composite crosslinking agent: 1.

[0036] The present embodiment also provides a kind of preparation method of high anti-corrosion environment-friendly water-based epoxy curing agent, comprising the following steps:

[0037] (1) Under normal temperature and normal state, take 10 grams of bisphenol A epoxy resin and 5 grams of ethylene glycol tert-butyl ether to mix respectively, and stir to dissolve;

[0038] (2) Weigh 40 grams of molten polyethylene glycol and add it to the first container, then add the materials in step (1) to the first container and stir...

Embodiment 3

[0042] This embodiment provides a high anti-corrosion and environment-friendly water-based epoxy curing agent. The components of the curing agent and the quality of each component are as follows:

[0043]

[0044] In the present embodiment, the epoxy value of bisphenol A epoxy resin is 0.53, the molecular weight of polyethylene glycol is 6000, and the mass ratio of isophorone diamine and diethylene triamine is 2 in the composite crosslinking agent: 1.

[0045] The present embodiment also provides a kind of preparation method of high anti-corrosion environment-friendly water-based epoxy curing agent, comprising the following steps:

[0046] (1) under normal temperature and normal state, respectively take by weighing 15 grams of bisphenol A epoxy resin and 8 grams of ethylene glycol tert-butyl ether to mix, and stir to dissolve;

[0047] (2) Weigh 35 grams of molten polyethylene glycol and add it to the first container, then add the materials in step (1) to the first contain...

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
epoxy valueaaaaaaaaaa
epoxy valueaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-corrosion-resistance environment-friendly waterborne epoxy curing agent and a preparation method thereof. The waterborne epoxy curing agent comprises the following components in percentage by mass: 5 to 15% of bisphenol A epoxy resin, 3 to 8% of an alcohol ether solvent, 35 to 45% of polyethylene glycol, 0.002 to 0.01% of a catalyst, 28 to 32% of a compound cross-linking agent and 11 to 18% of a reactive diluent, wherein the compound cross-linking agent comprises isophorone diamine and diethylenetriamine in a mass ratio of (2 to 6.5): 1. The waterborne epoxy curing agent can effectively improve the corrosion resistance of the coating.

Description

technical field [0001] The invention belongs to the field of water-based coatings, and more specifically relates to a high-corrosion and environment-friendly water-based epoxy curing agent and a preparation method thereof. Background technique [0002] Water-based epoxy resin refers to dispersing epoxy resin in water in the form of particles, droplets or colloids to obtain a stable dispersion system. Waterborne epoxy resin with curing agent is widely used as coating. Water-based epoxy resin coatings are widely used in anti-corrosion. Anti-corrosion coatings are generally divided into conventional anti-corrosion coatings and heavy-duty anti-corrosion coatings. They are an indispensable coating in paint coatings. Conventional anti-corrosion coatings play an anti-corrosion effect on metals under normal conditions and protect the service life of non-ferrous metals; A type of anti-corrosion coating that achieves a longer protection period than conventional anti-corrosion coatin...

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): C08L71/02C08L63/00C08G59/50C09D163/00C09D163/02C09D5/08C09D7/65
CPCC08L71/02C08G59/5026C08G59/5006C09D163/00C09D5/08C09D7/65C08L2205/025C08L2205/03C08L63/00
Inventor 何志威倪青青
Owner 广州惠顺新材料有限公司
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