Composite curing agent and epoxy resin composition prepared from composite curing agent

A composite curing agent and epoxy resin technology, which is applied in the field of epoxy resin materials, can solve the problems of low production efficiency, material performance degradation, and high preparation process requirements, and achieve high production efficiency, avoid large reaction heat release, and simple process Effect

Pending Publication Date: 2021-04-30
GUANGDONG HINNO TECH CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The temperature required for curing is relatively high and the time required for curing is relatively short, the curing reaction is relatively violent, the heat release is concentrated, and it is easy to cause implosion, resulting in a decrease in material performa

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
  • Composite curing agent and epoxy resin composition prepared from composite curing agent
  • Composite curing agent and epoxy resin composition prepared from composite curing agent
  • Composite curing agent and epoxy resin composition prepared from composite curing agent

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0046] Example 1:

[0047] Add 9 parts of ethylenediamine modified curing agent, 3 parts of adipic acid dihydrazide, 3 parts of boron trichloride-octylamine complex, 3 parts of 2-methylimidazolium, and 100 parts of propylene glycol methyl ether solvent into Stir the batching bottle with a stirrer until it is completely dissolved. After completely dissolving, add 60 parts of bisphenol A epoxy resin and 1 part of alkylene glycidyl ether and stir evenly to prepare a glue.

Example Embodiment

[0048] Example 2:

[0049] Add 9 parts of ethylenediamine modified curing agent, 3 parts of adipic acid dihydrazide, 3 parts of boron trichloride-octylamine complex, 3 parts of 2-methylimidazolium, and 100 parts of propylene glycol methyl ether solvent into Stir the batching bottle with a stirrer until it is completely dissolved. After completely dissolving, add 70 parts of bisphenol A epoxy resin and 1 part of alkylene glycidyl ether and stir evenly to prepare a glue.

Example Embodiment

[0050] Example 3:

[0051] Add 9 parts of ethylenediamine modified curing agent, 3 parts of adipic acid dihydrazide, 3 parts of boron trichloride-octylamine complex, 3 parts of 2-methylimidazolium, and 100 parts of propylene glycol methyl ether solvent into Stir the batching bottle with a stirrer until it is completely dissolved, add 80 parts of bisphenol A epoxy resin and 1 part of alkylene glycidyl ether after complete dissolution, and stir evenly to prepare a glue.

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

No PUM Login to view more

Abstract

The invention relates to a composite curing agent and an epoxy resin composition prepared from the composite curing agent. The composite curing agent comprises a modified amine curing agent, organic hydrazide and a Lewis acid amine complex. According to the epoxy resin composition prepared by taking the epoxy resin as the curing agent, the curing temperature is 120 DEG C, the required complete curing duration is controlled to be 8-12 minutes, the curing temperature is 150 DEG C, the required complete curing duration is controlled to be 5-10 minutes, the temperature required by the curing reaction is appropriate to the required duration, the curing efficiency is not reduced, the curing reaction is kept mild, and therefore, the problems of large reaction heat release, explosive polymerization, high brittleness after curing molding, low bending strength, poor dimensional stability and the like caused by violent reaction are effectively overcome. The curing agent is used as a preparation raw material and can be mixed with epoxy resin, an accelerant and a solvent to prepare an epoxy resin composition, the process is simple, and the production benefit is high.

Description

technical field [0001] The invention relates to the technical field of epoxy resin materials, in particular to a composite curing agent and an epoxy resin composition prepared from the composite curing agent. Background technique [0002] With the development of science and technology, the demand for epoxy resin systems has become more and more extensive. Epoxy resin-based composite materials have the advantages of high specific modulus, high specific strength, fatigue resistance, corrosion resistance, integral molding and strong designability. , has broad application prospects in aerospace, automobile manufacturing, sporting goods, molded products and other fields. However, the traditional epoxy resin composition has low reactivity and long curing time, which not only reduces the production efficiency, but also increases the production cost. The fast-curing epoxy resin composition realizes rapid curing of the resin at a specific temperature, improves production efficiency,...

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): C08G59/56
CPCC08G59/56C08G59/4035C08G59/5093C08G59/502C08G59/5006
Inventor 郭永军余家斌梁荣强漆小龙
Owner GUANGDONG HINNO TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap