News Details
Aliphatic amine coating cross-linking agent
2017-3-15 18:04:08
Aliphatic amine coating cross-linking agent,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 generally crosslinking slowly, life is short, the reason is that lone pair electrons on the nitrogen atom of still have a certain activity of open loop.
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.
With polyether modified aliphatic amine compounds to get the reaction with methyl isobutyl ketone ketone imide is also a kind of good performance of epoxy resin latent sexual coupling agent. 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.
Ethylenediamine, colorless or yellowish oily liquid or water, there are similar to the smell of ammonia. In strong alkaline. (n26D) 1.4540. Flammable. Low toxicity, median lethal dose (rats, through the mouth) 1460 mg/kg. Corrosive.
Ethylenediamine English alias: 1, 2 - Diaminoethane anhydrous; Ethylenediamine solution; Ethylenediamine diacetate; Ethylenediamine and derivatives; 1, 2 - Diaminoethane; 1, 2 - ethylenediamine; Ethane - 1, 2 - diamine; Ethane - 1, 1 - diamine; (E) - ethene - 1, 2 - diamine; Ethylenediamineanhydrous
Ethylenediamine solubility: soluble in water, ethanol, benzene and ethyl ether, slightly soluble in heptane. Can dissolve all kinds of dyes, shellac, resin, cellulose, etc. Also can dissolve many kinds of organic matter, but on the solubility of inorganic salts than liquid ammonia is poor.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Uses:
The product is identical to Ethancure 100 and Lonza DETDA 80, DETDA is very effective polyurethane elastomer chain extender; also be used as polyurethane and epoxy resin curing agent, epoxy resin of an antioxidant, industrial oils and lubricants . In addition, also as intermediates in organic synthesis.Especially for the RIM (reaction injection molding), is important in the field of spray polyurea chain extender species. Also can be used for casting polyurethane elastomer (CPU) and a curing agent, epoxy curing agent, epoxy resin of antioxidants, lubricants and industrial oils other antioxidants.
Industrial ethylenediamine by 1, 2 - dichloroethane and ammonia production, can also be used by 1, 2-2 bromine ethane reaction with ammonia. Ethylenediamine is an important chemical raw materials and reagents.
Hexamethylenediamine English name: 1, 6 - Diaminohexane; Hexamethylene diamine product alias 1, 6-2 amino hexane; 1, 6 - hexamethylenediamine formula NH2 (CH2) 6 NH2
Produced by catalytic hydrogenation method: NC (CH2) 4 cn + 4 h2 ─ - H2N nh2 (CH2) 6
In industry, which has two kinds of high pressure and low pressure method. High pressure method using cobalt - copper catalyst, reaction temperature 100 ~ 135 ℃, 60 ~ 65 mpa pressure; Also can use iron catalyst, reaction temperature 100 ~ 180 ℃, 30 to 35 mpa pressure. Reaction in the three-phase trickle bed reactor, solvent can be used liquid ammonia, sometimes join aromatics (e.g., toluene).
Hexamethylenediamine selectivity of about 90% ~ 95%. Low pressure method using skeleton nickel, iron, nickel or chrome - nickel catalyst, the reaction in sodium hydroxide solution. Reaction temperature about 75 ℃, pressure of 3 mpa, hexamethylenediamine selectivity of 99%. In order to prevent the catalyst poisoning, adiponitrile high requirement of the purity of raw materials. Of coarse hexamethylenediamine azeotropic distillation with water, and then several vacuum distillation, can obtain high purity hexamethylenediamine.
Triethylene tetramine is strong alkali medium viscosity yellow liquid, and its volatile under diethylene triamine, but the nature of the phase approximation. Boiling point: 266-267 ℃ (272 ℃), 157 ℃ (2.67 kPa), 12 ℃, freezing point (20, 20 ℃), relative density 0.9818, refractive index (nD20) 1.4971, flash point 143 ℃, spontaneous combustion point 338 ℃. Soluble in water and ethanol, slightly soluble in ether. Flammable. Low volatile, hygroscopicity strong, strong alkaline. Can absorb carbon dioxide from the air. Combustible, contact flame and high temperature have the risk of burning. Corrosion resistance is strong, can stimulate the skin mucous membrane, eyes and respiratory tract, and cause skin allergy, such as bronchial asthma symptoms.
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 generally crosslinking slowly, life is short, the reason is that lone pair electrons on the nitrogen atom of still have a certain activity of open loop.
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.
With polyether modified aliphatic amine compounds to get the reaction with methyl isobutyl ketone ketone imide is also a kind of good performance of epoxy resin latent sexual coupling agent. 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.
Ethylenediamine, colorless or yellowish oily liquid or water, there are similar to the smell of ammonia. In strong alkaline. (n26D) 1.4540. Flammable. Low toxicity, median lethal dose (rats, through the mouth) 1460 mg/kg. Corrosive.
Ethylenediamine English alias: 1, 2 - Diaminoethane anhydrous; Ethylenediamine solution; Ethylenediamine diacetate; Ethylenediamine and derivatives; 1, 2 - Diaminoethane; 1, 2 - ethylenediamine; Ethane - 1, 2 - diamine; Ethane - 1, 1 - diamine; (E) - ethene - 1, 2 - diamine; Ethylenediamineanhydrous
Ethylenediamine solubility: soluble in water, ethanol, benzene and ethyl ether, slightly soluble in heptane. Can dissolve all kinds of dyes, shellac, resin, cellulose, etc. Also can dissolve many kinds of organic matter, but on the solubility of inorganic salts than liquid ammonia is poor.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Uses:
The product is identical to Ethancure 100 and Lonza DETDA 80, DETDA is very effective polyurethane elastomer chain extender; also be used as polyurethane and epoxy resin curing agent, epoxy resin of an antioxidant, industrial oils and lubricants . In addition, also as intermediates in organic synthesis.Especially for the RIM (reaction injection molding), is important in the field of spray polyurea chain extender species. Also can be used for casting polyurethane elastomer (CPU) and a curing agent, epoxy curing agent, epoxy resin of antioxidants, lubricants and industrial oils other antioxidants.
Industrial ethylenediamine by 1, 2 - dichloroethane and ammonia production, can also be used by 1, 2-2 bromine ethane reaction with ammonia. Ethylenediamine is an important chemical raw materials and reagents.
Hexamethylenediamine English name: 1, 6 - Diaminohexane; Hexamethylene diamine product alias 1, 6-2 amino hexane; 1, 6 - hexamethylenediamine formula NH2 (CH2) 6 NH2
Produced by catalytic hydrogenation method: NC (CH2) 4 cn + 4 h2 ─ - H2N nh2 (CH2) 6
In industry, which has two kinds of high pressure and low pressure method. High pressure method using cobalt - copper catalyst, reaction temperature 100 ~ 135 ℃, 60 ~ 65 mpa pressure; Also can use iron catalyst, reaction temperature 100 ~ 180 ℃, 30 to 35 mpa pressure. Reaction in the three-phase trickle bed reactor, solvent can be used liquid ammonia, sometimes join aromatics (e.g., toluene).
Hexamethylenediamine selectivity of about 90% ~ 95%. Low pressure method using skeleton nickel, iron, nickel or chrome - nickel catalyst, the reaction in sodium hydroxide solution. Reaction temperature about 75 ℃, pressure of 3 mpa, hexamethylenediamine selectivity of 99%. In order to prevent the catalyst poisoning, adiponitrile high requirement of the purity of raw materials. Of coarse hexamethylenediamine azeotropic distillation with water, and then several vacuum distillation, can obtain high purity hexamethylenediamine.
Triethylene tetramine is strong alkali medium viscosity yellow liquid, and its volatile under diethylene triamine, but the nature of the phase approximation. Boiling point: 266-267 ℃ (272 ℃), 157 ℃ (2.67 kPa), 12 ℃, freezing point (20, 20 ℃), relative density 0.9818, refractive index (nD20) 1.4971, flash point 143 ℃, spontaneous combustion point 338 ℃. Soluble in water and ethanol, slightly soluble in ether. Flammable. Low volatile, hygroscopicity strong, strong alkaline. Can absorb carbon dioxide from the air. Combustible, contact flame and high temperature have the risk of burning. Corrosion resistance is strong, can stimulate the skin mucous membrane, eyes and respiratory tract, and cause skin allergy, such as bronchial asthma symptoms.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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