News Details
Organic hydrazine paint crosslinking agent
2017-5-5 10:58:58
Organic hydrazine paint crosslinking agent. Epoxy powder commonly used in dimethyl hydrazine is usually by the dibasic acid and hydrazine reaction of 2 hydrazide (dihydrazine), such as succinic acid hydrazide, adipic acid hydrazide, kwai, acid hydrazide, isophthalic acid hydrazide and the hydroxyl benzoic acid hydrazide (POPH), etc.
They have a high melting point, which is more stable in the resin and is stored at room temperature for more than four months. Each two lively hydrazide molecule contains six hydrogen atoms (dicyandiamide has four), and the reaction of epoxy resin crosslinking density is high, thus can form a coating with high density, the foreign minister of the carbon chain dibasic acid hydrazide also gives the molecular structure of the coating is good flexibility.
Both hydrazide such as epoxy crosslinking agent alone, generally should be heated to above 160 ℃ can be quickly crosslinking, if cooperate with imidazoles accelerator, it can decrease the crosslinking temperature and achieve rapid crosslinking, used for the preparation of fast crosslinked epoxy powder anticorrosive coating of the outer wall of oil and gas pipelines. In addition, this type of dihydrazine can also be used as a crosslinking accelerator in the system.
Common varieties is aoi 2 acid hydrazide (185-190 ℃, melting point) dosage is 7%, the weight of the resin can be in 150-160 ℃ / 15-20 min, 170-180 ℃ / 10-15 min, 200-220 ℃ / 1-2 min under the conditions of crosslinking.
The coated membrane of crosslinking has good flexibility and density, and has good resistance to yellowing, which is suitable for white or light-colored powder. But the price is high and toxic, limiting its widespread use. Adipate hydrazide also often used as A crosslinking agent of bisphenol A epoxy resin, the preparation of good storage performance of the powder coating, can form good compactness and no pinhole coating, applied to the anticorrosion functional coating of steel tube wall.
Diacylic acid dihydrazine is also known as diacylhydrazine, which is white crystal, soluble in water and intoxicated. It is mainly used in epoxy powder coating crosslinking agent and coating agent, metal deactivation agent and other high polymer additives and water treatment agent. With double function crosslinked reagent, it is specialized for aldehyde and produces relatively stable hydrazone link. It can be linked with sodium hyalurate as a protein drug carrier. In the water emulsion and water-soluble polymers, the cross-linking of diacetone acrylamide is linked. It can also be used as an indoor formaldehyde adsorbent and intermediates.
It is mainly used in epoxy powder coating crosslinking agent and coating agent, metal deactivation agent and other high polymer additives and water treatment agent.
Dihydrazide bifunctional group, which can be cross-linked with sodium hyalurate as a carrier of protein drugs. And diacetone acrylamide in water emulsion and water soluble polymer crosslinked after crosslinking role, such as coating, adhesive, fiber and plastic processing, hair gel, etc., also can be used as a crosslinking agent and coating epoxy powder coating additives, metal attenuated agent and other polymer additives and water treatment agent, indoor formaldehyde adsorbent materials and intermediates.
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
With double function crosslinked reagent, it is specialized for aldehyde and produces relatively stable hydrazone link. Especially for glycoproteins, such as antibodies.
Sebacate is a chemical that is C10H22N4O2.
Sebacate hydrazide (SPH) is a kind of high melting point compound powder, made by organic acid and hydrazine reaction. It can be used as coupling agent of epoxy resin (EP) latent intercourse. EP/SPH for viscous material system of powder coating film has very good flexibility, water resistance, weather resistance, corrosion resistance, insulation and decoration.
Because of the superior performance of the system; In the decorative powder, insulation powder, smoldering powder, electrical powder, heavy-duty powder used in the well, in today's domestic and foreign, especially the manufacturing quality and high temperature fast heavy-duty powder and oil pipeline, spaceflight, aviation fuel, in areas such as indispensable latent sexual coupling agent. As well as the strength of epoxy powders and glass reinforced plastic products are ideal.
A latent crosslinking agent for epoxy resin adhesion is used as a latent crosslinking agent for epoxy resin adhesives, and the duration of the period > is 3 months. Crosslinking conditions of 150 ℃ / 20 ~ 30 min. Lower than the dicyandiamide crosslinking temperature, short crosslinking time, good water resistance, high bonding strength, 30 min 150 ℃ / crosslinking of shear strength of 24.5 MPa. Crosslinked heat deformation temperature of 160 ~ 165 ℃. It is also used as the rapid crosslinking agent for modified polyvinyl acetate emulsion, which increases the initial strength and final strength and water resistance of adhesives.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
They have a high melting point, which is more stable in the resin and is stored at room temperature for more than four months. Each two lively hydrazide molecule contains six hydrogen atoms (dicyandiamide has four), and the reaction of epoxy resin crosslinking density is high, thus can form a coating with high density, the foreign minister of the carbon chain dibasic acid hydrazide also gives the molecular structure of the coating is good flexibility.
Both hydrazide such as epoxy crosslinking agent alone, generally should be heated to above 160 ℃ can be quickly crosslinking, if cooperate with imidazoles accelerator, it can decrease the crosslinking temperature and achieve rapid crosslinking, used for the preparation of fast crosslinked epoxy powder anticorrosive coating of the outer wall of oil and gas pipelines. In addition, this type of dihydrazine can also be used as a crosslinking accelerator in the system.
Common varieties is aoi 2 acid hydrazide (185-190 ℃, melting point) dosage is 7%, the weight of the resin can be in 150-160 ℃ / 15-20 min, 170-180 ℃ / 10-15 min, 200-220 ℃ / 1-2 min under the conditions of crosslinking.
The coated membrane of crosslinking has good flexibility and density, and has good resistance to yellowing, which is suitable for white or light-colored powder. But the price is high and toxic, limiting its widespread use. Adipate hydrazide also often used as A crosslinking agent of bisphenol A epoxy resin, the preparation of good storage performance of the powder coating, can form good compactness and no pinhole coating, applied to the anticorrosion functional coating of steel tube wall.
Diacylic acid dihydrazine is also known as diacylhydrazine, which is white crystal, soluble in water and intoxicated. It is mainly used in epoxy powder coating crosslinking agent and coating agent, metal deactivation agent and other high polymer additives and water treatment agent. With double function crosslinked reagent, it is specialized for aldehyde and produces relatively stable hydrazone link. It can be linked with sodium hyalurate as a protein drug carrier. In the water emulsion and water-soluble polymers, the cross-linking of diacetone acrylamide is linked. It can also be used as an indoor formaldehyde adsorbent and intermediates.
It is mainly used in epoxy powder coating crosslinking agent and coating agent, metal deactivation agent and other high polymer additives and water treatment agent.
Dihydrazide bifunctional group, which can be cross-linked with sodium hyalurate as a carrier of protein drugs. And diacetone acrylamide in water emulsion and water soluble polymer crosslinked after crosslinking role, such as coating, adhesive, fiber and plastic processing, hair gel, etc., also can be used as a crosslinking agent and coating epoxy powder coating additives, metal attenuated agent and other polymer additives and water treatment agent, indoor formaldehyde adsorbent materials and intermediates.
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
With double function crosslinked reagent, it is specialized for aldehyde and produces relatively stable hydrazone link. Especially for glycoproteins, such as antibodies.
Sebacate is a chemical that is C10H22N4O2.
Sebacate hydrazide (SPH) is a kind of high melting point compound powder, made by organic acid and hydrazine reaction. It can be used as coupling agent of epoxy resin (EP) latent intercourse. EP/SPH for viscous material system of powder coating film has very good flexibility, water resistance, weather resistance, corrosion resistance, insulation and decoration.
Because of the superior performance of the system; In the decorative powder, insulation powder, smoldering powder, electrical powder, heavy-duty powder used in the well, in today's domestic and foreign, especially the manufacturing quality and high temperature fast heavy-duty powder and oil pipeline, spaceflight, aviation fuel, in areas such as indispensable latent sexual coupling agent. As well as the strength of epoxy powders and glass reinforced plastic products are ideal.
A latent crosslinking agent for epoxy resin adhesion is used as a latent crosslinking agent for epoxy resin adhesives, and the duration of the period > is 3 months. Crosslinking conditions of 150 ℃ / 20 ~ 30 min. Lower than the dicyandiamide crosslinking temperature, short crosslinking time, good water resistance, high bonding strength, 30 min 150 ℃ / crosslinking of shear strength of 24.5 MPa. Crosslinked heat deformation temperature of 160 ~ 165 ℃. It is also used as the rapid crosslinking agent for modified polyvinyl acetate emulsion, which increases the initial strength and final strength and water resistance of adhesives.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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