News Details
Outdoor powder coatings crosslinking agent
2017-4-7 10:51:44
Outdoor powder coatings crosslinking agent,Under the circumstances of promoting environmental protection, outdoor powder as well as environmental protection, and to ensure the weatherability, must have the strong surface decorative effect.
In order to adapt to the characteristics of the current market, the polyester/Primid system adopts double crosslinking agent improved solution, reduce the production of pet/Primid system response when the moisture, make the coating surface smooth and plump. In order to reach the purpose of optimizing its comprehensive performance. At the same time, also for polyester and crosslinking agent manufacturers put forward the development direction, to promote the development of environmental protection of powder coatings.
There is only one earth, environmental damage, we will lose on sheltered harbor. So, with the deepening of social progress and material civilization, and unceasing enhancement of environmental consciousness, for environmental problems are more and more attention. High-risk materials are used in paint manufacturing related environmental protection laws and regulations limit the use of. With "4 e" (pa. The Economy, Ecology and environmental protection, Efficiency high, Excellency performance excellence) reputation of powder coating environmental protection more and more get the welcome of people.
Polyester/TGIC powder with excellent comprehensive performance, is most outdoor powder application system. However, TGIC can cause allergic to the skin and stimulate an eye, and doubt lead to genetic aberrations. So, the industry has tried to replace the TGIC with environmental protection material. So as to promote pet/Primid system, pet/PT910 system, pet/caprolactam closed system of isocyanate (PU), dry polyester/urea (Glycoluril) system and glycidyl ester of acrylic acid/fatty acids (GMA) system, etc.
Pet/Primid system is the most advantage of varieties in the environmental protection coating. Weather resistance has been in line with the Qualicoat class I, AAMA2603, standards such as GB/T5237-4, its basic non-toxic. But the contrast in terms of TGIC easy yellowing, water resistance and salt fog resistance than polyester/TGIC system, and the reaction with water, not thick coating. Affect the surface effect.
Of TGIC polyester/TGIC powder excitant, resistance is not completely environmental protection, but based on people's affection for its comprehensive performance is for a long time, still occupy a certain market share.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
A reagent grade additives
But, June 18, 2012, the European Union official chemicals released the seventh batch of 13 kinds of SVHC substances, clear vision cyanuric acid three glycidyl ester (TGIC) disabled (domain limit < 1000 PPM is < 0.1%). On January 1, 2015, our country "in the history of the most severe" new "environmental law enforcement. The third party certification and chemical occupational health requirements. This application has on effect to promote environmental protection powder.
Slowly will be pet/polyester/TGIC powder Primid, environmental protection, such as powder system instead. Pet/PT910 & PT912 system eliminates the ecology poison, but PT910 & PT912 low softening point, the storage stability of powder coating preparation will have a problem, want to rely on high Tg polyester collocation. Trouble so comprehensive promotion in the market.
In addition, polyester/caprolactam closed system of isocyanate (PU) price is quite high; Pet/dry urea (Glycoluril) system not only is high, and the reaction with water and methanol, smooth surface; Glycidyl ester of acrylic acid/fatty acids (GMA) system is also the price is high, and the impact resistance and poor compatibility.
Same kind of solvent has a different quality specification, cause it is used in the coatings showed the performance of the big differences: such as mixed xylene solvent and mixed heterogeneous level, the former ethyl benzene content is above 50%, solvent dissolving xylene force than mixed heterogeneous class, cannot be used for high quality requirements of plastic coating and coating of car, etc.; And as BTX aromatics S - 100: C - 9 respectively from cracking and restructuring C - 9.
Pyrolysis C - 9 olefins by hydrogenation saturation, but always aromatics content is not enough, show the initial boiling point down, and dissolve the force is not enough, will they used in Marine and anti-corrosion coating is not big, but for wood coatings of the request the volatilizing speed and dissolving power also when resin manufacturing will affect the quality of the request. Resin factory usually use measure aniline point or mixed aniline point to acceptance BTX aromatics S - 100, the lower the aniline point or mixed aniline point, solvent dissolving ability is stronger, is the content of aromatic hydrocarbons.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
In order to adapt to the characteristics of the current market, the polyester/Primid system adopts double crosslinking agent improved solution, reduce the production of pet/Primid system response when the moisture, make the coating surface smooth and plump. In order to reach the purpose of optimizing its comprehensive performance. At the same time, also for polyester and crosslinking agent manufacturers put forward the development direction, to promote the development of environmental protection of powder coatings.
There is only one earth, environmental damage, we will lose on sheltered harbor. So, with the deepening of social progress and material civilization, and unceasing enhancement of environmental consciousness, for environmental problems are more and more attention. High-risk materials are used in paint manufacturing related environmental protection laws and regulations limit the use of. With "4 e" (pa. The Economy, Ecology and environmental protection, Efficiency high, Excellency performance excellence) reputation of powder coating environmental protection more and more get the welcome of people.
Polyester/TGIC powder with excellent comprehensive performance, is most outdoor powder application system. However, TGIC can cause allergic to the skin and stimulate an eye, and doubt lead to genetic aberrations. So, the industry has tried to replace the TGIC with environmental protection material. So as to promote pet/Primid system, pet/PT910 system, pet/caprolactam closed system of isocyanate (PU), dry polyester/urea (Glycoluril) system and glycidyl ester of acrylic acid/fatty acids (GMA) system, etc.
Pet/Primid system is the most advantage of varieties in the environmental protection coating. Weather resistance has been in line with the Qualicoat class I, AAMA2603, standards such as GB/T5237-4, its basic non-toxic. But the contrast in terms of TGIC easy yellowing, water resistance and salt fog resistance than polyester/TGIC system, and the reaction with water, not thick coating. Affect the surface effect.
Of TGIC polyester/TGIC powder excitant, resistance is not completely environmental protection, but based on people's affection for its comprehensive performance is for a long time, still occupy a certain market share.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
A reagent grade additives
But, June 18, 2012, the European Union official chemicals released the seventh batch of 13 kinds of SVHC substances, clear vision cyanuric acid three glycidyl ester (TGIC) disabled (domain limit < 1000 PPM is < 0.1%). On January 1, 2015, our country "in the history of the most severe" new "environmental law enforcement. The third party certification and chemical occupational health requirements. This application has on effect to promote environmental protection powder.
Slowly will be pet/polyester/TGIC powder Primid, environmental protection, such as powder system instead. Pet/PT910 & PT912 system eliminates the ecology poison, but PT910 & PT912 low softening point, the storage stability of powder coating preparation will have a problem, want to rely on high Tg polyester collocation. Trouble so comprehensive promotion in the market.
In addition, polyester/caprolactam closed system of isocyanate (PU) price is quite high; Pet/dry urea (Glycoluril) system not only is high, and the reaction with water and methanol, smooth surface; Glycidyl ester of acrylic acid/fatty acids (GMA) system is also the price is high, and the impact resistance and poor compatibility.
Same kind of solvent has a different quality specification, cause it is used in the coatings showed the performance of the big differences: such as mixed xylene solvent and mixed heterogeneous level, the former ethyl benzene content is above 50%, solvent dissolving xylene force than mixed heterogeneous class, cannot be used for high quality requirements of plastic coating and coating of car, etc.; And as BTX aromatics S - 100: C - 9 respectively from cracking and restructuring C - 9.
Pyrolysis C - 9 olefins by hydrogenation saturation, but always aromatics content is not enough, show the initial boiling point down, and dissolve the force is not enough, will they used in Marine and anti-corrosion coating is not big, but for wood coatings of the request the volatilizing speed and dissolving power also when resin manufacturing will affect the quality of the request. Resin factory usually use measure aniline point or mixed aniline point to acceptance BTX aromatics S - 100, the lower the aniline point or mixed aniline point, solvent dissolving ability is stronger, is the content of aromatic hydrocarbons.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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