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

Imidazole latent curing agent containing triazinetrione ring structure and preparation method thereof

A technology of latent curing agent and triazinetrione ring, which is applied in the field of epoxy resin latent curing agent and its preparation, can solve the problems of poor compatibility, short pot life at room temperature, limited application, etc., and achieve good compatibility , Long storage period, overcome the effect of short application period

Active Publication Date: 2019-07-23
WUHAN UNIV OF TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, common imidazole curing agents have poor compatibility with epoxy resins and short pot life at room temperature, which limits their application

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
  • Imidazole latent curing agent containing triazinetrione ring structure and preparation method thereof
  • Imidazole latent curing agent containing triazinetrione ring structure and preparation method thereof
  • Imidazole latent curing agent containing triazinetrione ring structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The imidazole latent curing agent containing triazinetrione ring structure has the following molecular structural formula:

[0032] Among them, R 1 and R 2 Both are hydrogen.

[0033] The preparation method of the above-mentioned imidazole latent curing agent containing triazinetrione ring structure, the specific steps are as follows:

[0034] Mix 20.4g of imidazole and 300ml of N,N-dimethylformamide in the reaction flask evenly, and then gradually add 29.7g of triglycidyl isocyanurate to the reaction flask under stirring at 90°C; triglycidyl isocyanurate After the glyceride was added, the reaction was stirred at 110° C. for 4 hours; after the reaction, the solvent was removed by rotary evaporation to obtain an imidazole latent curing agent (code: A) containing a triazinetrione ring structure.

Embodiment 2

[0036] The imidazole latent curing agent containing triazinetrione ring structure has the following molecular structural formula:

[0037] Among them, R 1 for methyl and R 2 for hydrogen.

[0038] The preparation method of the above-mentioned imidazole latent curing agent containing triazinetrione ring structure, concrete steps are as follows: 24.6g2-methylimidazole and 300mlN,N-dimethylformamide are mixed in reaction bottle, then in 120 29.7g of triglycidyl isocyanurate was gradually added to the reaction flask under the condition of stirring; after the addition of TGIC, the reaction was stirred at 130°C for 5h; after the reaction, the solvent was removed by rotary evaporation to obtain Ring structure imidazole latent curing agent (code: B).

Embodiment 3

[0040] The imidazole latent curing agent containing triazinetrione ring structure has the following molecular structural formula:

[0041] Among them, R 1 for ethyl and R 2 for hydrogen.

[0042] The preparation method of the above-mentioned imidazole latent curing agent containing triazinetrione ring structure, concrete steps are as follows: 28.8g2-ethylimidazole and 300mlN,N-dimethylformamide are mixed in reaction bottle, then in 130 29.7g of triglycidyl isocyanurate was gradually added to the reaction flask under stirring conditions; after TGIC was added, stirred and reacted at 140°C for 5h; after the reaction, the solvent was removed by rotary evaporation to obtain Ring structure imidazole latent curing agent (code: C).

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 discloses an imidazole latent curing agent containing a triazinetrione structure. A molecular structural formula of the imidazole latent curing agent is described in the specification. Asynthetic method of the imidazole latent curing agent comprises the following steps: adopting an imidazole compound containing an active N-H bond and triglycidyl isocyanurate, and carrying out addition reaction, so that the imidazole latent curing agent containing the triazinetrione structure is obtained. The imidazole latent curing agent containing the triazinetrione structure has good compatibility with epoxy resin, a formed single-component system is long in storage period, and the epoxy resin can be rapidly cured under medium temperature condition.

Description

technical field [0001] The invention relates to the technical field of epoxy resin latent curing agent and preparation method thereof, in particular to an imidazole latent curing agent for epoxy resin containing a triazinetrione ring structure. [0002] Background technique: [0003] In recent years, epoxy resin latent curing agent is a research hotspot in the field of epoxy resin curing agent at home and abroad. Compared with the two-component epoxy resin system commonly used at present, the one-component system prepared by latent curing agent and epoxy resin has the advantages of simple production and operation process, reduced environmental pollution, uniform product quality, and convenient industrial production, etc. advantage. [0004] The imidazole curing agent can initiate anionic chain polymerization of epoxy resin, and has the characteristics of less dosage, high curing efficiency, chemical medium resistance, mechanical properties and electrical insulation propertie...

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 Patents(China)
IPC IPC(8): C08G59/62C07D403/14
CPCC07D403/14C08G59/62
Inventor 杨爽胡业发章桥新周祖德丁国平王钧
Owner WUHAN UNIV OF TECH
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