News Details
Multi-amine additive powder coating crosslinking agent
2017-5-4 11:51:59
Multi-amine additive powder coating crosslinking agent.The polyamine added to the powder coating industry is used as a low temperature/rapid crosslinking agent. For addition of amine is usually aliphatic/aromatic primary amine or secondary amine, such as amine are: dimethylamine, diethylenetriamine, four ethylene amine, 4, 4 '- diamino diphenyl methane, alicyclic amine such as 1, 2 or 1, 4-2 amino cyclohexane and so on.
It is believed that the addition of polyamine and epoxy resin is not as catalytic as imidazole. Bonus is one of the purposes of the liquid epoxy crosslinking agent into a product can be used by powder coating industry of solid, but chooses for the addition of amine liquid cannot have high volatility; On the other hand, such as 4, 4 '- diamino diphenyl methane (4, 4' - diamino diphenylmethane -] such a solid product, after the addition can improve its dispersion properties in the epoxy components. Usually, the reaction activity of the raw material that is used for the purpose of addition is too high to be used directly for the preparation of powder coating.
In most case, it is prior to coating components other than multiple amine adduct store mixed extrusion pelleting, then match the amount of crosslinking adduct grinding together, this is the use of this kind of crosslinking agent preparation of low-temperature crosslinking powder coating is the most effective method. The combination of polyamine and imidazole is used for the use of MDF, wood products, plastic and other heat-sensitive substrate for low temperature crosslinking.
In the same way, this kind of crosslinking agent is showing an increasing importance in the need for fast crosslinking, hot melt, and sintering coatings. In any coating system containing epoxy, this type of polyamine is also an effective crosslinking accelerator.
Multiple amine is not belong to a polyol, but it in polyurethane synthesis with polyol up effect similar to that of strictly speaking the polymer obtained cannot be named pu, shall be referred to as poly (amino formamide or polyurea, however, as a people will usually polyurethane class discussion.
The most commonly used polyamines are 3, 3, 2, 1, 2, 2, 2, 2, 2, and 1, 2, 3, 2, 2, 2, 2, 2, 4, and 2, 3, 2, 3, 2, 2, 2, 3, 2, 3, 3, 2, 3, 2, 3, 2, 3, 3, 2, 3, 2, 3, 2, 3, 2, 3, Other low-poly polyols such as hydroxy silicone resin are also used in special circumstances.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
Dimethylamine is a gas at room temperature. There's a smell like ammonia. Relative density 0.680 (0 ℃). Melting point - 96 ℃. Boiling point 7 ℃. Soluble in water, soluble in ethanol and ethyl ether. Easy to burn. It has a weak base, and it produces the salt that is soluble in water. It is used as the raw material for drugs, dyes, pesticides and rubber vulcanization. It is made by the presence of ammonia and methanol in high temperature and high pressure and catalyst.
It is used as a high temperature crosslinking agent for epoxy resin adhesives, with a reference amount of 26 ~ 30, the best use of 28 parts, and the applicable period 8h (100g). Crosslinking conditions of 80 ℃ / 2 h + 165 ℃ or 160 ℃ / 2 h/h (4 ~ 5). Crosslinked heat deformation temperature of 150 ℃, 0.1% water imbibition. DDM is less reactive than diphenylamine, which has a better color than diphenylamine, but has long been exposed to dark brown after exposure to sunlight. DDM with dimethyl sulfonium toluene diamine (DADMT) blend available for long period (10 h) at room temperature and 100 ℃ crosslinking temperature of crosslinking agent.
For adhesive, laminate and coating etc. It is also used as a vulcanization accelerator for hydro-butyl rubber and latex, which is used in natural rubber and butadiene rubber for thiazole accelerator and active agent. It is also used to make diisocyanate, polyamide, etc.
Some high-molecular thermoplastic polymers are also very effective in preventing the production of powder coatings. One example is the polyvinyl butyral, which was used as a leveler in the 1960s. Because they have a high melting point, it is difficult to disperse them in a resin melt, so they are soon replaced by liquid polyacrylics.
At present, relatively high melt viscosity polyvinyl butyral only being used in some functional coatings, because they can be without prejudice to current performance at the same time improve the coverage of the horn side powder. Some low-melt, viscosi-viscosized cellulose (CAB) is also used in powder coatings to prevent shrinkage.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
It is believed that the addition of polyamine and epoxy resin is not as catalytic as imidazole. Bonus is one of the purposes of the liquid epoxy crosslinking agent into a product can be used by powder coating industry of solid, but chooses for the addition of amine liquid cannot have high volatility; On the other hand, such as 4, 4 '- diamino diphenyl methane (4, 4' - diamino diphenylmethane -] such a solid product, after the addition can improve its dispersion properties in the epoxy components. Usually, the reaction activity of the raw material that is used for the purpose of addition is too high to be used directly for the preparation of powder coating.
In most case, it is prior to coating components other than multiple amine adduct store mixed extrusion pelleting, then match the amount of crosslinking adduct grinding together, this is the use of this kind of crosslinking agent preparation of low-temperature crosslinking powder coating is the most effective method. The combination of polyamine and imidazole is used for the use of MDF, wood products, plastic and other heat-sensitive substrate for low temperature crosslinking.
In the same way, this kind of crosslinking agent is showing an increasing importance in the need for fast crosslinking, hot melt, and sintering coatings. In any coating system containing epoxy, this type of polyamine is also an effective crosslinking accelerator.
Multiple amine is not belong to a polyol, but it in polyurethane synthesis with polyol up effect similar to that of strictly speaking the polymer obtained cannot be named pu, shall be referred to as poly (amino formamide or polyurea, however, as a people will usually polyurethane class discussion.
The most commonly used polyamines are 3, 3, 2, 1, 2, 2, 2, 2, 2, and 1, 2, 3, 2, 2, 2, 2, 2, 4, and 2, 3, 2, 3, 2, 2, 2, 3, 2, 3, 3, 2, 3, 2, 3, 2, 3, 3, 2, 3, 2, 3, 2, 3, 2, 3, Other low-poly polyols such as hydroxy silicone resin are also used in special circumstances.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
Dimethylamine is a gas at room temperature. There's a smell like ammonia. Relative density 0.680 (0 ℃). Melting point - 96 ℃. Boiling point 7 ℃. Soluble in water, soluble in ethanol and ethyl ether. Easy to burn. It has a weak base, and it produces the salt that is soluble in water. It is used as the raw material for drugs, dyes, pesticides and rubber vulcanization. It is made by the presence of ammonia and methanol in high temperature and high pressure and catalyst.
It is used as a high temperature crosslinking agent for epoxy resin adhesives, with a reference amount of 26 ~ 30, the best use of 28 parts, and the applicable period 8h (100g). Crosslinking conditions of 80 ℃ / 2 h + 165 ℃ or 160 ℃ / 2 h/h (4 ~ 5). Crosslinked heat deformation temperature of 150 ℃, 0.1% water imbibition. DDM is less reactive than diphenylamine, which has a better color than diphenylamine, but has long been exposed to dark brown after exposure to sunlight. DDM with dimethyl sulfonium toluene diamine (DADMT) blend available for long period (10 h) at room temperature and 100 ℃ crosslinking temperature of crosslinking agent.
For adhesive, laminate and coating etc. It is also used as a vulcanization accelerator for hydro-butyl rubber and latex, which is used in natural rubber and butadiene rubber for thiazole accelerator and active agent. It is also used to make diisocyanate, polyamide, etc.
Some high-molecular thermoplastic polymers are also very effective in preventing the production of powder coatings. One example is the polyvinyl butyral, which was used as a leveler in the 1960s. Because they have a high melting point, it is difficult to disperse them in a resin melt, so they are soon replaced by liquid polyacrylics.
At present, relatively high melt viscosity polyvinyl butyral only being used in some functional coatings, because they can be without prejudice to current performance at the same time improve the coverage of the horn side powder. Some low-melt, viscosi-viscosized cellulose (CAB) is also used in powder coatings to prevent shrinkage.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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