News Details
Waterborne epoxy paint crosslinking agent
2017-8-26 10:36:46
Waterborne epoxy paint crosslinking agent
Klein, two glycidyl polyoxyethylene ether get epoxy resin and bisphenol A epoxy resin reaction you repose, again with polyethylene oxide propylene diamine and isophorone diamine epoxy - amine reacts with epoxy crosslinking agent.
Klein with bisphenol A epoxy resin, such as two glycidyl polyoxyethylene ether and bisphenol A epoxy resin was prepared under the action of A catalyst dispersion, and then react with ethylene polyamine more amino epoxy amine adduct get end, with A single epoxy compounds end for waterborne epoxy crosslinking agent.
Miyamoto et al. produced epoxy-amine admixture under the action of NaOH and epoxy chloropropane, which was used as crosslinking agent for aqueous epoxy and had excellent performance.
Isophorone diamine is an organic compound, IPDA for short, is a kind of through the reaction of isophorone chemistry alicyclic diamine, consists of 3 - methyl - 3,5,5 - trimethyl ammonia cyclohexyl amine formed a mixture of two isomers.
As a lipid cyclodiamine, IPDA can be used in all the usual amine reactions.Under certain conditions, it is especially suitable to react with carboxylic acid, carbonyl chloride, aldehydes, ketones and epoxies.It can be mixed with a large number of compounds such as water, alcohols, esters, ether and fatty hydrocarbons, aromatic hydrocarbons and halogenated hydrocarbons at room temperature.
It is mainly used as crosslinking agent for epoxy resin. It is mainly used for low color, low odor, high flexural strength and excellent chemical resistance.Suitable for floor coating, paving and mixing.
Because of polyalkyl cyclohexane ring;Different amino groups and the special structure of cis and trans configuration, IPDA must be considered as a new kind of diamine.If you compare it to the usual commercial amines, there are obvious differences in the properties of specific derivatives, especially polymers.
As a kind of adipocyte, IPDA is a crosslinking agent that can react with epoxy resin at room temperature and can also promote this reaction under appropriate conditions.It is used as a liquid, solvent - free coating and construction industry as well as the crosslinking agent of casting resin and casting sealant has special advantages.The product exhibits high hardness and flexural temperature under load, and also has good color stability and chemical resistance.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
Klein, two glycidyl polyoxyethylene ether get epoxy resin and bisphenol A epoxy resin reaction you repose, again with polyethylene oxide propylene diamine and isophorone diamine epoxy - amine reacts with epoxy crosslinking agent.
Klein with bisphenol A epoxy resin, such as two glycidyl polyoxyethylene ether and bisphenol A epoxy resin was prepared under the action of A catalyst dispersion, and then react with ethylene polyamine more amino epoxy amine adduct get end, with A single epoxy compounds end for waterborne epoxy crosslinking agent.
Miyamoto et al. produced epoxy-amine admixture under the action of NaOH and epoxy chloropropane, which was used as crosslinking agent for aqueous epoxy and had excellent performance.
Isophorone diamine is an organic compound, IPDA for short, is a kind of through the reaction of isophorone chemistry alicyclic diamine, consists of 3 - methyl - 3,5,5 - trimethyl ammonia cyclohexyl amine formed a mixture of two isomers.
As a lipid cyclodiamine, IPDA can be used in all the usual amine reactions.Under certain conditions, it is especially suitable to react with carboxylic acid, carbonyl chloride, aldehydes, ketones and epoxies.It can be mixed with a large number of compounds such as water, alcohols, esters, ether and fatty hydrocarbons, aromatic hydrocarbons and halogenated hydrocarbons at room temperature.
It is mainly used as crosslinking agent for epoxy resin. It is mainly used for low color, low odor, high flexural strength and excellent chemical resistance.Suitable for floor coating, paving and mixing.
Because of polyalkyl cyclohexane ring;Different amino groups and the special structure of cis and trans configuration, IPDA must be considered as a new kind of diamine.If you compare it to the usual commercial amines, there are obvious differences in the properties of specific derivatives, especially polymers.
As a kind of adipocyte, IPDA is a crosslinking agent that can react with epoxy resin at room temperature and can also promote this reaction under appropriate conditions.It is used as a liquid, solvent - free coating and construction industry as well as the crosslinking agent of casting resin and casting sealant has special advantages.The product exhibits high hardness and flexural temperature under load, and also has good color stability and chemical resistance.
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
Crosslinking agent for epoxy resin adhesive.The reference dosage is 23 ~ 24, the application period is 1h.Crosslinking conditions + 150 ℃, 80 ℃ / lh / 4 h.Asked to above 80 ℃ after crosslinking. Best is 120 ℃.In order to accelerate crosslinking reaction, phenol, salicylic acid or DMP - 30 can be added to the system.Crosslinked heat deformation temperature of 149 ℃.It is also used as a closed - type single - component polychloro-ester adhesive.It is also used as an extender for water-based polyurethane adhesive.
No matter which kind of form selection of waterborne epoxy resin and water-borne epoxy crosslinking agent, finally has practical application value of waterborne epoxy system is a kind of dispersed multiphase structure, composed of waterborne epoxy resin, water-borne epoxy crosslinking agent, such as water multiphase composition, its mechanism of membrane is different from the general polymer emulsion acrylic emulsion as film forming (condenses into membrane, physical process), and at the same time and solvent epoxy film is not entirely the same.
In solvent epoxy system, epoxy resin and the crosslinking agent are in the form of molecules dissolved in organic solvent, the formation of the system is homogeneous, the crosslinking reaction between the molecules, thus crosslinking reaction more fully, formed by crosslinking is homogeneous.
Water-based epoxy for multiphase system, epoxy resins and crosslinking agent in the form of the dispersed phase dispersed in the water phase, cross-linking cross-linking process is in the process of evaporation of water particles between the mutual penetration of internal diffusion of crosslinking reaction process.
The better compatibility of waterborne epoxy resin with water-based epoxy crosslinking agent, the better the interflow of crosslinking particle and epoxy particles is beneficial to the crosslinking reaction.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Crosslinking agent for epoxy resin adhesive.The reference dosage is 23 ~ 24, the application period is 1h.Crosslinking conditions + 150 ℃, 80 ℃ / lh / 4 h.Asked to above 80 ℃ after crosslinking. Best is 120 ℃.In order to accelerate crosslinking reaction, phenol, salicylic acid or DMP - 30 can be added to the system.Crosslinked heat deformation temperature of 149 ℃.It is also used as a closed - type single - component polychloro-ester adhesive.It is also used as an extender for water-based polyurethane adhesive.
No matter which kind of form selection of waterborne epoxy resin and water-borne epoxy crosslinking agent, finally has practical application value of waterborne epoxy system is a kind of dispersed multiphase structure, composed of waterborne epoxy resin, water-borne epoxy crosslinking agent, such as water multiphase composition, its mechanism of membrane is different from the general polymer emulsion acrylic emulsion as film forming (condenses into membrane, physical process), and at the same time and solvent epoxy film is not entirely the same.
In solvent epoxy system, epoxy resin and the crosslinking agent are in the form of molecules dissolved in organic solvent, the formation of the system is homogeneous, the crosslinking reaction between the molecules, thus crosslinking reaction more fully, formed by crosslinking is homogeneous.
Water-based epoxy for multiphase system, epoxy resins and crosslinking agent in the form of the dispersed phase dispersed in the water phase, cross-linking cross-linking process is in the process of evaporation of water particles between the mutual penetration of internal diffusion of crosslinking reaction process.
The better compatibility of waterborne epoxy resin with water-based epoxy crosslinking agent, the better the interflow of crosslinking particle and epoxy particles is beneficial to the crosslinking reaction.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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