News Details
The coating is used as a crosslinking agent for fatty amine
2017-4-27 11:52:54
The coating is used as a crosslinking agent for fatty amine,Such as ethylenediamine, hexamethylenediamine, divinyl three amine, like triethylene tetramine are used in the two-component epoxy crosslinking agent at room temperature, by the methods of chemical modification, the nucleophilic addition reaction with organic ketone compounds, dehydrated produce imide is a closed, reduce its crosslinking activity, the effective way of improving its storage stability.
This kind of type ketone imide crosslinking agent and one-component system consisting of epoxy resin through the effect of moisture and water and make the decomposed into amine ketone imide so can make epoxy cross-linking at room temperature.But the average crosslinking speed is not very fast, and the use period is shorter, because the lone pair of electrons on the ammonia nitrogen still have certain open ring activity.
To solve this problem, takeda susceptibility of ketone carbonyl ends with three-dimensional block groups, 3 - methyl - 2 - butanone and highly reactive diamine methyl cyclohexane reaction of 1, 3 two ammonia ketone imide not only has high cross-linking reactivity, and storage stability is obviously improved.
The polyether modified fatty amine and methyl-isobutyl ketamine are also a good performance of epoxy resins.Aliphatic amine crosslinking agent with acrylonitrile, organic phosphonic compounds, transition metal complex reaction, also can make its crosslinking reaction activity is reduced, thus has certain latent.
Cross-linking research has shown the following trends:
To focus on the development of high-quality and comprehensive cross-linking agents;
The technology transformation and new product development of the crosslinking agent are extremely active;
To strengthen scientific research on the production of a management research and development system;
Strengthening intellectual property protection;
It develops with epoxy resin and promotes each other.
Cross-linking agent development trend
Functional couplets are a hot topic for research and development.
(1) multi-functional (with cross-linking, toughening, flame retardant, promotion, etc.) is the ideal product for people to pursue.
Chinese name: Diethyl toluene diamine(DETDA)
Physical and chemical properties: light yellow transparent liquid, slightly soluble in water, soluble in alcohols, ethers, ketones and other polar organic solvents, and polyether, polyester polyol compatibility.
Density 1.022
Viscosity (20 ℃) ??mPa·ss290±10
Pour Point ℃-9
Boiling point of310°C
Flash Point°C161.1°C
Due to the development of new structure and excellent performance of epoxy resin little progress, to meet the requirements for resin modified functional additives become the goal of a dose of pluripotent products more and more.
(2) rapid crosslinking, low temperature crosslinking, and minimal water absorption.
(3) the cross-linking agent for special functions has also been developed, such as flexible crosslinking agent.
The crosslinking agent is hypotoxic and not toxic.
A feature of modern crosslinking agent development, people not only focus on crosslinking agent in the toxicity and pollution of the environment problems in the process of the production and use, and attaches great importance to the environmental pollution of the waste epoxy resin.In developed countries, primary polyene and aromatic amine have been replaced by non-toxic or detoxification.
The crosslinking agent used in special environment (humidity, water, outdoor etc.) is popular.
In order to meet the high demand for epoxy resins, the performance, mechanical properties, and good mechanical performance of crosslinking agent will be greatly improved.
The digital beam and photocrosslinked crosslinking agent are getting more and more attention.
The application of special crosslinking agent, water-based epoxy resin coating and single component adhesives is very large and promising.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
This kind of type ketone imide crosslinking agent and one-component system consisting of epoxy resin through the effect of moisture and water and make the decomposed into amine ketone imide so can make epoxy cross-linking at room temperature.But the average crosslinking speed is not very fast, and the use period is shorter, because the lone pair of electrons on the ammonia nitrogen still have certain open ring activity.
To solve this problem, takeda susceptibility of ketone carbonyl ends with three-dimensional block groups, 3 - methyl - 2 - butanone and highly reactive diamine methyl cyclohexane reaction of 1, 3 two ammonia ketone imide not only has high cross-linking reactivity, and storage stability is obviously improved.
The polyether modified fatty amine and methyl-isobutyl ketamine are also a good performance of epoxy resins.Aliphatic amine crosslinking agent with acrylonitrile, organic phosphonic compounds, transition metal complex reaction, also can make its crosslinking reaction activity is reduced, thus has certain latent.
Cross-linking research has shown the following trends:
To focus on the development of high-quality and comprehensive cross-linking agents;
The technology transformation and new product development of the crosslinking agent are extremely active;
To strengthen scientific research on the production of a management research and development system;
Strengthening intellectual property protection;
It develops with epoxy resin and promotes each other.
Cross-linking agent development trend
Functional couplets are a hot topic for research and development.
(1) multi-functional (with cross-linking, toughening, flame retardant, promotion, etc.) is the ideal product for people to pursue.
Chinese name: Diethyl toluene diamine(DETDA)
Physical and chemical properties: light yellow transparent liquid, slightly soluble in water, soluble in alcohols, ethers, ketones and other polar organic solvents, and polyether, polyester polyol compatibility.
Density 1.022
Viscosity (20 ℃) ??mPa·ss290±10
Pour Point ℃-9
Boiling point of310°C
Flash Point°C161.1°C
Due to the development of new structure and excellent performance of epoxy resin little progress, to meet the requirements for resin modified functional additives become the goal of a dose of pluripotent products more and more.
(2) rapid crosslinking, low temperature crosslinking, and minimal water absorption.
(3) the cross-linking agent for special functions has also been developed, such as flexible crosslinking agent.
The crosslinking agent is hypotoxic and not toxic.
A feature of modern crosslinking agent development, people not only focus on crosslinking agent in the toxicity and pollution of the environment problems in the process of the production and use, and attaches great importance to the environmental pollution of the waste epoxy resin.In developed countries, primary polyene and aromatic amine have been replaced by non-toxic or detoxification.
The crosslinking agent used in special environment (humidity, water, outdoor etc.) is popular.
In order to meet the high demand for epoxy resins, the performance, mechanical properties, and good mechanical performance of crosslinking agent will be greatly improved.
The digital beam and photocrosslinked crosslinking agent are getting more and more attention.
The application of special crosslinking agent, water-based epoxy resin coating and single component adhesives is very large and promising.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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