News Details
Different isocyanate paint crosslinking agent
2017-5-10 15:43:54
Different isocyanate paint crosslinking agent.The purpose of this study is through the adoption of different isocyanate crosslinking agent, the cross-linking cross-linking with fluorine resin, the preparation of cost-effective, good anti-corrosion performance and durability of better temperature cross-linking fluorine resin coating, to further expand the fluorine resin coating application in the field of corrosion protection.
Crosslinking agent selection. The FEVE resins containing hydroxyl can react with the NCO base of polyurethane crosslinking, which is a fluorocarbon resin coating. The commonly used toluene diisocyanate TDI, which is low in price, can only be used for corrosion resistant resin paint and the fluorocarbon resin coating. Because TDI trimer is easy to be yellow and powdery, not easy to use outdoors. FEVE fluororesin coating is mainly used for outdoor durability, long life of anticorrosion and low maintenance cost. General purpose of the use of diurea diurea.
Accelerated ageing of the types of crosslinking agent on the coating performance: the influence of the artificial accelerated aging test: according to GB/T 16585, using uv/condensation cycling test method, test coating artificial accelerated aging resistance performance.
The relationship between aging time and chromatism of different crosslinking agents. The protection of light decreases with the aging time. In this case, the fluororesin coating of the ht-90 was tested in the QUV3000h, and the protection rate was above 80%, and was significantly better than the other two crosslinking agents.
HDT - 90 crosslinked fluorine resin coatings and crosslinking agent of 3 # crosslinked fluorine resin coating, after QUV3000h resistance, Δ E values are under 3, color grade 1.
In conclusion HDT - 90 crosslinked fluorine resin coating of artificial aging performance, best N75 crosslinked fluorine resin coating of artificial aging properties and crosslinking agent of 3 # crosslinked fluorine resin coating has obvious gap compared artificial aging performance. The effect of cross-linking agent on the weatherability of fluorocarbon coating can be greatly influenced.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packingļ¼ net weight 200KG/ galvanized iron drum (a small cabinet pallet loaded 16 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons or 23 tons of ISOTANK).
The effect of crosslinking agent on price performance. The performance of fluorocarbon coating machinery, chemical resistance and artificial acceleration of hd-90 are the best. In the aggregate cost estimation, the price is only slightly higher than the fluorocarbon coating with the N75, and the price ratio is excellent. Crosslinking agent the adornment of the 3 # best performance, performance and other artificial aging resistant performance is better than that of N75, but the high cost of crosslinking agent of 3 # unit price, improve the comprehensive cost of the product, affect the promotion and use.
It has the advantages of super weatherability, chemical resistance, high corrosion resistance, high ornamental, and other coatings.
Using HDI trimer crosslinking crosslinking of fluorocarbon resin coatings, relative to the N75 crosslinking of fluorocarbon coating, greatly improve the weatherability of fluorocarbon coating, medium resistance, the appearance of the coatings and decorative have also improved, at the same time using HDI trimer crosslinking crosslinked fluorine resin coating has excellent performance.
Using HDI trimer crosslinked fluorine resin coating has been successfully applied in aircraft skin paint coating, believe trimer crosslinking fluorocarbon resin coatings can meet the aerospace, automotive, chemical corrosion, etc to the demand of the fluorocarbon coating, will also promote the fluorocarbon resin coating in further application in the field of heavy industry.
Fluorine is a thermoplastic resin containing fluorine in the molecular structure. The characteristics of high temperature, low temperature, dielectric properties, chemical stability, weathering, non-flammability, non-viscous and low friction coefficient etc. It is an important material of the national economic sectors, especially the cutting-edge science and technology and the defense industry. Fluorine resin main varieties of polytetrafluoroethylene (PTFE), polytrifluorochloroethylene (PCTFE), poly (vinylidene fluoride) (PVDF), - tetrafluoroethylene ethylene copolymer (ETFE), ethylene - vinyl chloride copolymer (ECTFE), three fluorine polyvinyl fluoride (PVF), etc. Polytetrafluoroethylene is the main one.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Crosslinking agent selection. The FEVE resins containing hydroxyl can react with the NCO base of polyurethane crosslinking, which is a fluorocarbon resin coating. The commonly used toluene diisocyanate TDI, which is low in price, can only be used for corrosion resistant resin paint and the fluorocarbon resin coating. Because TDI trimer is easy to be yellow and powdery, not easy to use outdoors. FEVE fluororesin coating is mainly used for outdoor durability, long life of anticorrosion and low maintenance cost. General purpose of the use of diurea diurea.
Accelerated ageing of the types of crosslinking agent on the coating performance: the influence of the artificial accelerated aging test: according to GB/T 16585, using uv/condensation cycling test method, test coating artificial accelerated aging resistance performance.
The relationship between aging time and chromatism of different crosslinking agents. The protection of light decreases with the aging time. In this case, the fluororesin coating of the ht-90 was tested in the QUV3000h, and the protection rate was above 80%, and was significantly better than the other two crosslinking agents.
HDT - 90 crosslinked fluorine resin coatings and crosslinking agent of 3 # crosslinked fluorine resin coating, after QUV3000h resistance, Δ E values are under 3, color grade 1.
In conclusion HDT - 90 crosslinked fluorine resin coating of artificial aging performance, best N75 crosslinked fluorine resin coating of artificial aging properties and crosslinking agent of 3 # crosslinked fluorine resin coating has obvious gap compared artificial aging performance. The effect of cross-linking agent on the weatherability of fluorocarbon coating can be greatly influenced.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packingļ¼ net weight 200KG/ galvanized iron drum (a small cabinet pallet loaded 16 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons or 23 tons of ISOTANK).
The effect of crosslinking agent on price performance. The performance of fluorocarbon coating machinery, chemical resistance and artificial acceleration of hd-90 are the best. In the aggregate cost estimation, the price is only slightly higher than the fluorocarbon coating with the N75, and the price ratio is excellent. Crosslinking agent the adornment of the 3 # best performance, performance and other artificial aging resistant performance is better than that of N75, but the high cost of crosslinking agent of 3 # unit price, improve the comprehensive cost of the product, affect the promotion and use.
It has the advantages of super weatherability, chemical resistance, high corrosion resistance, high ornamental, and other coatings.
Using HDI trimer crosslinking crosslinking of fluorocarbon resin coatings, relative to the N75 crosslinking of fluorocarbon coating, greatly improve the weatherability of fluorocarbon coating, medium resistance, the appearance of the coatings and decorative have also improved, at the same time using HDI trimer crosslinking crosslinked fluorine resin coating has excellent performance.
Using HDI trimer crosslinked fluorine resin coating has been successfully applied in aircraft skin paint coating, believe trimer crosslinking fluorocarbon resin coatings can meet the aerospace, automotive, chemical corrosion, etc to the demand of the fluorocarbon coating, will also promote the fluorocarbon resin coating in further application in the field of heavy industry.
Fluorine is a thermoplastic resin containing fluorine in the molecular structure. The characteristics of high temperature, low temperature, dielectric properties, chemical stability, weathering, non-flammability, non-viscous and low friction coefficient etc. It is an important material of the national economic sectors, especially the cutting-edge science and technology and the defense industry. Fluorine resin main varieties of polytetrafluoroethylene (PTFE), polytrifluorochloroethylene (PCTFE), poly (vinylidene fluoride) (PVDF), - tetrafluoroethylene ethylene copolymer (ETFE), ethylene - vinyl chloride copolymer (ECTFE), three fluorine polyvinyl fluoride (PVF), etc. Polytetrafluoroethylene is the main one.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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