News Details
Crosslinking agent for powder coating
2017-5-3 16:27:11
Crosslinking agent for powder coating. According to a certain quality of epoxy resin, crushing to the particle size is less than 35 microns, crosslinking agent, pigment (rutile type titanium pigment), degassing agent (benzoin), packing (barium sulfate), etc., after fully blending melt extrusion, extrusion sheet after cooling after crushing, crushing, sieving, namely for powder coating.
Improved production process. Will be A certain amount of epoxy resin and bisphenol A in the organic combination of low-temperature crosslinking agent such as urea, then add the pigments, fillers and other additives, etc., after fully blending melt extrusion.
Infrared spectrum analysis of epoxy resin crosslinking reactions. To test the resin and the reaction of the organic type of crosslinking agent, resin and the reaction of the crosslinking agent type, the containing of bisphenol A epoxy resin, organic type of crosslinking agent, containing of bisphenol A epoxy resin and organic urea class after crosslinking agent of crosslinking reaction of the product of infrared spectrum analysis, respectively.
1610, 1510, 1459 cm - 1 is the absorption peak of the vibrational feature of the benzene ring skeleton; 830,770 cm-1 shows the benzene ring as a pair replacement benzene ring; 1380,1367 cm - 1 is the characteristic absorption peak of kaira dimethyl bimodal. There are four absorption peaks at 3000 ~ 2800cm - 1, indicating the presence of methyl and submethyl groups; 1250cm - 1 is the retractable vibration absorption peak of the aromatic ether c-o. 3365cm-1 is the absorption peak of the hydroxyl and n-h bonds; 1647cm - 1 for the C O key expansion vibration absorption peak (amide! Tape); The absorption peak of 1544cm-1 is due to the coupling between the c-n bond and the n-h bond oscillations. According to these absorption peaks, the substance can be identified as an organic urea compound containing bisphenol A.
The characteristic absorption peak of the epoxy base at 914cm minus 1; In 1610, 1510 and 1459cm-1 are the absorption peaks for the vibrational features of the benzene ring skeleton; 830,770 cm-1 shows the benzene ring as a pair replacement benzene ring; The absorption peak of the hydroxyl group at 3415cm minus 1; 1250,1038 cm-1 is a symmetric and asymmetrical vibration absorption peak for the aromatic ether c-o. There are four absorption peaks at 3000 ~ 2800cm - 1, indicating the presence of methyl and submethyl groups; 1380,1367 cm - 1 is the characteristic absorption peak of kaira dimethyl bimodal. The substance is called A bisphenol A epoxy resin.
The characteristic absorption peak of 914cm-1 is gone; The absorption peak of 1647cm-1 (amide I band) is observed, but the absorption peak of 1544cm-1 (amide belt) is observed. We know that the n-h bonds of the secondary amide group disappear, and 3365cm-1 does not have the absorption peak of the n-h bond, only the absorption peak of the hydroxyl group.
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.
It is suggested that the secondary amide group of the organic urea compounds react with the epoxy group, so that the organic urea compounds successfully grafted onto the epoxy resin. Epoxy resins and organic urea have been linked and can form a very good network structure.
Powder coating for low temperature crosslinking and crosslinking, rapid low temperature can not only increase the production rate of automatic production line and improve the production efficiency, save energy, but also allows the application of powder coatings is no longer limited to the metal, such as base material, heat resistance and can be applied to plastic products, paper, cardboard and wood heat sensitive substrate surface coating, such as to reduce the production cost of powder coating, expand the application field of powder coating has very important significance.
This paper substantially reducing the crosslinking temperature, obvious effect of energy conservation, reduce the baking operation in the process of production cost, save the energy, to guarantee the quality of the crosslinking content at the same time, reduces the crosslinking time, greatly shorten the production cycle, high production efficiency, better economy benefit.
With MDI and 3 - amino propyl amine as raw material, dimethyl synthetic low-temperature crosslinking agent such as a kind of organic urea diphenyl methane - 4-2 / N, N - dimethyl amine c urea, crosslinking agent is 11%, powder coating was produced by the improved technology, epoxy powder coating can make 8 min at 130 degrees Celsius and 140 degrees c for 4 min completely under the condition of crosslinking, greatly reduces the crosslinking temperature, energy saving effect is obvious, physical and mechanical properties of the coating and chemical resistance can meet the requirements of industrial production.
Low temperature synthesis of cross-linked epoxy powder coating, powder coating application is no longer confined to the surface of the metal heat resistant base material such as coating, powder coating used in plastics, paper, cardboard and wood heat sensitive substrate surface coating, greatly expand the application field and application scope of powder coatings.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Improved production process. Will be A certain amount of epoxy resin and bisphenol A in the organic combination of low-temperature crosslinking agent such as urea, then add the pigments, fillers and other additives, etc., after fully blending melt extrusion.
Infrared spectrum analysis of epoxy resin crosslinking reactions. To test the resin and the reaction of the organic type of crosslinking agent, resin and the reaction of the crosslinking agent type, the containing of bisphenol A epoxy resin, organic type of crosslinking agent, containing of bisphenol A epoxy resin and organic urea class after crosslinking agent of crosslinking reaction of the product of infrared spectrum analysis, respectively.
1610, 1510, 1459 cm - 1 is the absorption peak of the vibrational feature of the benzene ring skeleton; 830,770 cm-1 shows the benzene ring as a pair replacement benzene ring; 1380,1367 cm - 1 is the characteristic absorption peak of kaira dimethyl bimodal. There are four absorption peaks at 3000 ~ 2800cm - 1, indicating the presence of methyl and submethyl groups; 1250cm - 1 is the retractable vibration absorption peak of the aromatic ether c-o. 3365cm-1 is the absorption peak of the hydroxyl and n-h bonds; 1647cm - 1 for the C O key expansion vibration absorption peak (amide! Tape); The absorption peak of 1544cm-1 is due to the coupling between the c-n bond and the n-h bond oscillations. According to these absorption peaks, the substance can be identified as an organic urea compound containing bisphenol A.
The characteristic absorption peak of the epoxy base at 914cm minus 1; In 1610, 1510 and 1459cm-1 are the absorption peaks for the vibrational features of the benzene ring skeleton; 830,770 cm-1 shows the benzene ring as a pair replacement benzene ring; The absorption peak of the hydroxyl group at 3415cm minus 1; 1250,1038 cm-1 is a symmetric and asymmetrical vibration absorption peak for the aromatic ether c-o. There are four absorption peaks at 3000 ~ 2800cm - 1, indicating the presence of methyl and submethyl groups; 1380,1367 cm - 1 is the characteristic absorption peak of kaira dimethyl bimodal. The substance is called A bisphenol A epoxy resin.
The characteristic absorption peak of 914cm-1 is gone; The absorption peak of 1647cm-1 (amide I band) is observed, but the absorption peak of 1544cm-1 (amide belt) is observed. We know that the n-h bonds of the secondary amide group disappear, and 3365cm-1 does not have the absorption peak of the n-h bond, only the absorption peak of the hydroxyl group.
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.
It is suggested that the secondary amide group of the organic urea compounds react with the epoxy group, so that the organic urea compounds successfully grafted onto the epoxy resin. Epoxy resins and organic urea have been linked and can form a very good network structure.
Powder coating for low temperature crosslinking and crosslinking, rapid low temperature can not only increase the production rate of automatic production line and improve the production efficiency, save energy, but also allows the application of powder coatings is no longer limited to the metal, such as base material, heat resistance and can be applied to plastic products, paper, cardboard and wood heat sensitive substrate surface coating, such as to reduce the production cost of powder coating, expand the application field of powder coating has very important significance.
This paper substantially reducing the crosslinking temperature, obvious effect of energy conservation, reduce the baking operation in the process of production cost, save the energy, to guarantee the quality of the crosslinking content at the same time, reduces the crosslinking time, greatly shorten the production cycle, high production efficiency, better economy benefit.
With MDI and 3 - amino propyl amine as raw material, dimethyl synthetic low-temperature crosslinking agent such as a kind of organic urea diphenyl methane - 4-2 / N, N - dimethyl amine c urea, crosslinking agent is 11%, powder coating was produced by the improved technology, epoxy powder coating can make 8 min at 130 degrees Celsius and 140 degrees c for 4 min completely under the condition of crosslinking, greatly reduces the crosslinking temperature, energy saving effect is obvious, physical and mechanical properties of the coating and chemical resistance can meet the requirements of industrial production.
Low temperature synthesis of cross-linked epoxy powder coating, powder coating application is no longer confined to the surface of the metal heat resistant base material such as coating, powder coating used in plastics, paper, cardboard and wood heat sensitive substrate surface coating, greatly expand the application field and application scope of powder coatings.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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