News Details
Bicomponent epoxy resin at room temperature paint crosslinking agent
2017-8-24 16:54:55
Bicomponent epoxy resin at room temperature paint crosslinking agent
Ethylenediamine, hexylenediamine, diethyltriamine, triethylene tetramine and other are commonly used two-component epoxy resin at room temperature crosslinking agent.
Two-component epoxy crosslinking agent at room temperature modification methods: by the methods of chemical modification, the two-component epoxy crosslinking agent and organic ketone compounds at room temperature for nucleophilic addition reaction, dehydration generated imine is a closed, reduce its crosslinking activity, the effective way of improving its storage stability.
The one-component system of the ketoylamine crosslinking agent and epoxy resin is used to decompose ketosamine into amine by the effect of moisture and moisture, so that the epoxy resin can be cross-linked at normal temperature.However, 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 some open-loop 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 aliphatic amine and methyl-isobutyl ketone reaction are also a good - performance epoxy resins.By the reaction of acrylonitrile and organic phosphine compounds, the transition metal complexes can reduce the crosslinking reaction activity and thus have some latent latent properties.
Cross-linking agent studies have shown the following trends:
The research and development of high-quality comprehensive cross-linking agent;
2. The technical transformation and new product development of the crosslinking agent production plant are extremely active;
Strengthening scientific research to apply 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 in research and development.
(1) multi-functional (with cross-linking, toughening, flame retardant, promotion and other functions) crosslinking agent has become the ideal product for people to pursue.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
Ethylenediamine, hexylenediamine, diethyltriamine, triethylene tetramine and other are commonly used two-component epoxy resin at room temperature crosslinking agent.
Two-component epoxy crosslinking agent at room temperature modification methods: by the methods of chemical modification, the two-component epoxy crosslinking agent and organic ketone compounds at room temperature for nucleophilic addition reaction, dehydration generated imine is a closed, reduce its crosslinking activity, the effective way of improving its storage stability.
The one-component system of the ketoylamine crosslinking agent and epoxy resin is used to decompose ketosamine into amine by the effect of moisture and moisture, so that the epoxy resin can be cross-linked at normal temperature.However, 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 some open-loop 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 aliphatic amine and methyl-isobutyl ketone reaction are also a good - performance epoxy resins.By the reaction of acrylonitrile and organic phosphine compounds, the transition metal complexes can reduce the crosslinking reaction activity and thus have some latent latent properties.
Cross-linking agent studies have shown the following trends:
The research and development of high-quality comprehensive cross-linking agent;
2. The technical transformation and new product development of the crosslinking agent production plant are extremely active;
Strengthening scientific research to apply 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 in research and development.
(1) multi-functional (with cross-linking, toughening, flame retardant, promotion and other functions) crosslinking agent has become the ideal product for people to pursue.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
A reagent grade additives
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 minimum water absorption rate crosslinking agents develop rapidly.
(3) the cross-linking agent for special functions has also been developed, such as elastic crosslinking agent.
The crosslinking agent is low and 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 low-toxicity modified amines.
The crosslinking agent used in special environment (moist, underwater, outdoor etc.) is very popular.
In order to adapt to the high performance of epoxy resin, the performance, mechanical properties and excellent mechanical properties of crosslinking agents will be greatly developed.
It is becoming more and more important that both electron beam and optical crosslinking agent.
The special crosslinking agent, water-based epoxy resin coatings special water-soluble solids and single-component adhesives are very large and promising.
It is divided into single component polyurethane resin, linear thermoplastic polyurethane, polyurethane oil, moisture crosslinking polyurethane, closed isocyanate.Solvent - based two-component polyurethane coating resin, and water - based polyurethane.More apply to floor paint and thick paint of the most common epoxy resin paint.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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 minimum water absorption rate crosslinking agents develop rapidly.
(3) the cross-linking agent for special functions has also been developed, such as elastic crosslinking agent.
The crosslinking agent is low and 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 low-toxicity modified amines.
The crosslinking agent used in special environment (moist, underwater, outdoor etc.) is very popular.
In order to adapt to the high performance of epoxy resin, the performance, mechanical properties and excellent mechanical properties of crosslinking agents will be greatly developed.
It is becoming more and more important that both electron beam and optical crosslinking agent.
The special crosslinking agent, water-based epoxy resin coatings special water-soluble solids and single-component adhesives are very large and promising.
It is divided into single component polyurethane resin, linear thermoplastic polyurethane, polyurethane oil, moisture crosslinking polyurethane, closed isocyanate.Solvent - based two-component polyurethane coating resin, and water - based polyurethane.More apply to floor paint and thick paint of the most common epoxy resin paint.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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