News Details
Coating with epoxy crosslinking agent
2017-4-4 13:44:04
Coating with epoxy crosslinking agent,Aniline and formaldehyde condensation into aniline formaldehyde resin as epoxy crosslinking agent: by boric acid n-butyl acetate, a shrinkage diethylene glycol or propylene glycol modified dimethyl ethanolamine can get excellent various performance indicators of medium temperature crosslinking agent 594 (or 595); By boron trifluoride (BF3) and amine system such as rimantadine, aniline, such as methyl aniline, N - methyl aniline formation complex. Has the very good stability at room temperature. 15 ~ 30 ℃ can save more than six months, under the high temperature rapid decomposition. Emits the amine rapid crosslinking, therefore is a good latent type of cross-linking agent.
Epoxy silane crosslinking agent is a kind of colorless transparent liquid, mainly used in unsaturated polyester composite materials, can improve the mechanical properties of composite materials, electrical properties, pervious to light performance, especially in the wet performance of composite material can be greatly improved. Use (including the coupling agent) infiltration processing glass fiber, glass fiber reinforced composites can be improved mechanical strength and electrical properties of wet. Wire and cable industry, with the coupling agent treatment clay filling peroxide crosslinked EPDM system, improving the cost factor and inductance capacitive reactance. With vinyl acetate and acrylic acid or methyl acrylate monomer copolymerization, the polymers are widely used in coatings, adhesives and sealants, provide excellent bonding strength and durability.
Anionic waterborne polyurethane (PU) plays a role of the emulsifier containing carboxyl stable waterborne polyurethane sugar medium (PUD), at the same time also make PU membrane has high hydrophilicity. To improving the performance of PUD film between benzene dimethylamine were used respectively to four glycidyl amine (GA - 240) and sorbitol glycidyl ether (GE - 60) on polyurethane water medium (PUD) crosslinking modification and crosslinking agent was studied in coating of water resistance, ethanol resistance, hardness, gel and the influence of thermal stability.
Fourier infrared spectroscopy (FTIR) display of PUD chain carboxyl and amino and GE and GA - 240-60 epoxy crosslinking reaction happened; Coating performance tests show that the GA - 240 and GE - 60 can improve PUD water resistance, ethanol resistance, cold cracking resistance and stain resistance. Among them, the GA - 240 was also able to up to 89.0% of PUD gel, hardness increase to 0.83. Best quality than m, respectively (GA - 240) : m (PUD) = 0.02, m (GE - 60) : m (PUD) = 0.012. Thermo-gravimetric analysis (TGA), found that the GA - 240 and GE - 60 can improve the thermal stability of film.
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.
Epoxy compound crosslinking agent for PU emulsion commonly the main agent. Can be used as A crosslinking agent of epoxy compound are generally small molecules by diol or polyhydric alcohol and epoxy chloropropane of aromatic and aliphatic epoxy resin, such as bisphenol A epoxy resin, ethylene glycidyl ether, sorbitol glycidyl ether, glycerol glycidyl ether and trimethylolpropane glycidyl ether, etc. Epoxy compound crosslinking agent for PU emulsion commonly the main agent of 1% ~ 5%. Epoxy resin insoluble or slightly soluble in water, industrial anti-corrosion paint a small amount of epoxy resin can be dispersed in the PU emulsion.
For example, with polyester, polyether polyol, toluene diisocyanate (TDI), diethylene triamine and maleic anhydride as the foundation of solids mass fraction of 0.35 anionic PU emulsion, after adding cross-linking agent, mixing, dry film. Dry film on 120 x: heating 20 min, can produce film heat treatment. Two film in 35 x: soak 24 h, join a kind of aliphatic epoxy three functional groups - trimethylolpropane glycidyl ether, can significantly improve the water resistance of film.
Carboxylic acid adding multiple amine type anionic PU emulsion crosslinking agent, can effectively improve the film resistance to water. Can be used in the multivariate amine of water-based PU crosslinking agent with ethylenediamine and the ethyl amine and piperazine, etc.
In order to reduce the amine fetid odor, it can be partly in acid and salt, such as multivariate amine and formic acid, hydrochloric acid, sulfuric acid and phosphoric acid into water soluble salt solution, easy to use. Crosslinking reaction mainly occurs between the amino and carboxyl, the reaction at room temperature.
Emulsion with poly (propylene oxide glycol (M 2 _), TDI, dihydroxy methyl propionate as the foundation, with sodium hydroxide and carboxyl, net pay transmitte points ethylenediamine add 0.6 for emulsion solid composition.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Epoxy silane crosslinking agent is a kind of colorless transparent liquid, mainly used in unsaturated polyester composite materials, can improve the mechanical properties of composite materials, electrical properties, pervious to light performance, especially in the wet performance of composite material can be greatly improved. Use (including the coupling agent) infiltration processing glass fiber, glass fiber reinforced composites can be improved mechanical strength and electrical properties of wet. Wire and cable industry, with the coupling agent treatment clay filling peroxide crosslinked EPDM system, improving the cost factor and inductance capacitive reactance. With vinyl acetate and acrylic acid or methyl acrylate monomer copolymerization, the polymers are widely used in coatings, adhesives and sealants, provide excellent bonding strength and durability.
Anionic waterborne polyurethane (PU) plays a role of the emulsifier containing carboxyl stable waterborne polyurethane sugar medium (PUD), at the same time also make PU membrane has high hydrophilicity. To improving the performance of PUD film between benzene dimethylamine were used respectively to four glycidyl amine (GA - 240) and sorbitol glycidyl ether (GE - 60) on polyurethane water medium (PUD) crosslinking modification and crosslinking agent was studied in coating of water resistance, ethanol resistance, hardness, gel and the influence of thermal stability.
Fourier infrared spectroscopy (FTIR) display of PUD chain carboxyl and amino and GE and GA - 240-60 epoxy crosslinking reaction happened; Coating performance tests show that the GA - 240 and GE - 60 can improve PUD water resistance, ethanol resistance, cold cracking resistance and stain resistance. Among them, the GA - 240 was also able to up to 89.0% of PUD gel, hardness increase to 0.83. Best quality than m, respectively (GA - 240) : m (PUD) = 0.02, m (GE - 60) : m (PUD) = 0.012. Thermo-gravimetric analysis (TGA), found that the GA - 240 and GE - 60 can improve the thermal stability of film.
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.
Epoxy compound crosslinking agent for PU emulsion commonly the main agent. Can be used as A crosslinking agent of epoxy compound are generally small molecules by diol or polyhydric alcohol and epoxy chloropropane of aromatic and aliphatic epoxy resin, such as bisphenol A epoxy resin, ethylene glycidyl ether, sorbitol glycidyl ether, glycerol glycidyl ether and trimethylolpropane glycidyl ether, etc. Epoxy compound crosslinking agent for PU emulsion commonly the main agent of 1% ~ 5%. Epoxy resin insoluble or slightly soluble in water, industrial anti-corrosion paint a small amount of epoxy resin can be dispersed in the PU emulsion.
For example, with polyester, polyether polyol, toluene diisocyanate (TDI), diethylene triamine and maleic anhydride as the foundation of solids mass fraction of 0.35 anionic PU emulsion, after adding cross-linking agent, mixing, dry film. Dry film on 120 x: heating 20 min, can produce film heat treatment. Two film in 35 x: soak 24 h, join a kind of aliphatic epoxy three functional groups - trimethylolpropane glycidyl ether, can significantly improve the water resistance of film.
Carboxylic acid adding multiple amine type anionic PU emulsion crosslinking agent, can effectively improve the film resistance to water. Can be used in the multivariate amine of water-based PU crosslinking agent with ethylenediamine and the ethyl amine and piperazine, etc.
In order to reduce the amine fetid odor, it can be partly in acid and salt, such as multivariate amine and formic acid, hydrochloric acid, sulfuric acid and phosphoric acid into water soluble salt solution, easy to use. Crosslinking reaction mainly occurs between the amino and carboxyl, the reaction at room temperature.
Emulsion with poly (propylene oxide glycol (M 2 _), TDI, dihydroxy methyl propionate as the foundation, with sodium hydroxide and carboxyl, net pay transmitte points ethylenediamine add 0.6 for emulsion solid composition.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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