News Details
Variety of paint crosslinking agent
2017-5-3 16:26:10
Variety of paint crosslinking agent, more than 20 years ago the single amine crosslinking agent had the very big development, on the basis of kwai hydrazine, replace dicyandiamide and some anhydride class the development and application of crosslinking agent greatly improves the performance of epoxy powder coating.
The use of a variety of additives, especially the new flow ping agent not only make the coating flow property and the shrinkage cavity effect is better, and greatly improved the film gloss and resistance to high pressure electrostatic effect.
Epoxy powder coating has an important role in the development of powder coating with excellent corrosion resistance, electrical insulation and physical mechanical strength.
Although in recent years, thanks to the development of other types of powder coatings in the whole of the powder coating proportion fell slightly, but with the development of new industry, the fields of application broadening, believe it will still occupies an important position in the development of powder coatings.
Although the epoxy powder coating is given priority to with bisphenol A type epoxy resin, mainly used in corrosion and rust and parts of matt powder coatings, etc., but the weather resistance of epoxy powder coating research and development work has been going on, mostly alicyclic epoxy resin and epoxy resin with glycidyl epoxy powder coating, including alicyclic epoxy resin and glycidyl ether alicyclic epoxy powder coating of epoxy resin shrinkage glycerides weathering resistance have been greatly improved, can be used in outdoor.
In addition, the resistance of powder coatings made by hydrogenated bisphenol A epoxy resin has also been improved. Because from this kind of weather the coating properties of epoxy powder coating and coating cost into account, can't see the advantage than polyester and polyurethane coating, also can not get extensive application in industrial production.
Epoxy powder coatings at home and abroad, a large number of applications in different diameter of oil, gas, plumbing pipeline inside and outside wall painting, and chemical material conveying pipeline, pipeline, mine support is of large ships, scaffolding, steel and other heavy anti-corrosion coating.
It is also used in the aspects of electrical insulation coating, such as equipment and meter case, car and tractor parts, motor rotor and copper wire line.
Powder coating has been developed rapidly for more than 30 years due to excellent comprehensive performance and environmental performance. But due to the requirement of crosslinking temperature above 140 degrees, usually powder coating on heat sensitive materials such as wood, aluminum and magnesium alloys, plastics and with the application of a few years ago is hard to imagine.
Chinese name: Diethyl toluene diamine(DETDA)
Physical and chemical properties: light yellow transparent liquid, slightly soluble in water, soluble in alcohols, ethers, ketones and other polar organic solvents, and polyether, polyester polyol compatibility.
Density 1.022
Viscosity (20 ℃) ??mPa·ss290±10
Pour Point ℃-9
Boiling point of310°C
Flash Point°C161.1°C
Because the coating is increasingly strict environmental protection laws and regulations, and the production cost and product quality control consciousness growing, workpiece internal containing thermosensitive materials such as thermal rubber washer, wire, etc., its heat resistance temperature does not exceed 120 ° C.
Powder coating has a great advantage over 3d workpieces:
(1) it is not easy to produce a flow phenomenon, it will not cause the problem of installation difficulty due to the thickness of the local membrane of the workpiece, and the corners are covered well.
(2) the barrier is not blocked by the barrier that can be sprayed into the evaporator.
(3) with excellent adhesion, no primer.
(4) the powder is free of VOC (volatile organic compound), the coating utilization exceeds 98%, the environmental protection performance is excellent.
At the same time, the two companies also want powder coating provided an average crosslinking temperature not to exceed 120 °, can quickly flow leveling crosslinking, has also asked film has excellent physical and chemical properties.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
The use of a variety of additives, especially the new flow ping agent not only make the coating flow property and the shrinkage cavity effect is better, and greatly improved the film gloss and resistance to high pressure electrostatic effect.
Epoxy powder coating has an important role in the development of powder coating with excellent corrosion resistance, electrical insulation and physical mechanical strength.
Although in recent years, thanks to the development of other types of powder coatings in the whole of the powder coating proportion fell slightly, but with the development of new industry, the fields of application broadening, believe it will still occupies an important position in the development of powder coatings.
Although the epoxy powder coating is given priority to with bisphenol A type epoxy resin, mainly used in corrosion and rust and parts of matt powder coatings, etc., but the weather resistance of epoxy powder coating research and development work has been going on, mostly alicyclic epoxy resin and epoxy resin with glycidyl epoxy powder coating, including alicyclic epoxy resin and glycidyl ether alicyclic epoxy powder coating of epoxy resin shrinkage glycerides weathering resistance have been greatly improved, can be used in outdoor.
In addition, the resistance of powder coatings made by hydrogenated bisphenol A epoxy resin has also been improved. Because from this kind of weather the coating properties of epoxy powder coating and coating cost into account, can't see the advantage than polyester and polyurethane coating, also can not get extensive application in industrial production.
Epoxy powder coatings at home and abroad, a large number of applications in different diameter of oil, gas, plumbing pipeline inside and outside wall painting, and chemical material conveying pipeline, pipeline, mine support is of large ships, scaffolding, steel and other heavy anti-corrosion coating.
It is also used in the aspects of electrical insulation coating, such as equipment and meter case, car and tractor parts, motor rotor and copper wire line.
Powder coating has been developed rapidly for more than 30 years due to excellent comprehensive performance and environmental performance. But due to the requirement of crosslinking temperature above 140 degrees, usually powder coating on heat sensitive materials such as wood, aluminum and magnesium alloys, plastics and with the application of a few years ago is hard to imagine.
Chinese name: Diethyl toluene diamine(DETDA)
Physical and chemical properties: light yellow transparent liquid, slightly soluble in water, soluble in alcohols, ethers, ketones and other polar organic solvents, and polyether, polyester polyol compatibility.
Density 1.022
Viscosity (20 ℃) ??mPa·ss290±10
Pour Point ℃-9
Boiling point of310°C
Flash Point°C161.1°C
Because the coating is increasingly strict environmental protection laws and regulations, and the production cost and product quality control consciousness growing, workpiece internal containing thermosensitive materials such as thermal rubber washer, wire, etc., its heat resistance temperature does not exceed 120 ° C.
Powder coating has a great advantage over 3d workpieces:
(1) it is not easy to produce a flow phenomenon, it will not cause the problem of installation difficulty due to the thickness of the local membrane of the workpiece, and the corners are covered well.
(2) the barrier is not blocked by the barrier that can be sprayed into the evaporator.
(3) with excellent adhesion, no primer.
(4) the powder is free of VOC (volatile organic compound), the coating utilization exceeds 98%, the environmental protection performance is excellent.
At the same time, the two companies also want powder coating provided an average crosslinking temperature not to exceed 120 °, can quickly flow leveling crosslinking, has also asked film has excellent physical and chemical properties.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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