Weather resistance type powder coatings crosslinking agent

Weather resistance type powder coatings crosslinking agent,Powder into industrial use has a history of nearly 40 years, TGIC (different melamine urea acid three glycidyl ester) as a "perfect" partner, was once the weather resistance type powder coatings is the most important crosslinking agent.

Despite the operator skin discomfort, may cause genetic effects of black history, but still can't change the user's fascination with the. Until May 1998, the European Union's new policy will TGIC as toxic substances limits, this situation to improve in the west.

Undefined people began seeking alternatives, TGIC HAA, GPA, oxazoline have been included.

HAA (beta hydroxy alkyl amide) because of its non-toxic began to be widely used in powder coating crosslinking agent, in 2003, in Europe, HAA replaced TGIC powder coating as weather resistance is most important crosslinking agent.

In the east, the development trend of China's powder coatings than other parts of the world, according to data, powder coating in our country in 2015 to 47% of the world's total. As China's rise of powder coatings, and the status of TGIC. We can obviously feel that, when you ask a polyester company, their business personnel will default recommended for TGIC crosslinked polyester resin, non-toxic harmless HAA instead into an awkward situation.

What makes the Chinese market became a beta hydroxy alkyl amide crosslinking system of Waterloo? Caused this situation, on the one hand, is a polyester/HAA system imperfect, relative to the surface effect of polyester/TGIC system prone to pinhole, baking yellowing easily, and as the most important weather outdoor products, pet/HAA system can't reach the heights of the latter, these defects hide its advantages, more environmental protection, energy saving in producer point of view, the downstream customer easier to intuitive feel the space condition, and the risk of potential changes in gene were ignored.

In the screening of pesticide, coating, ink, adhesives, oil refining, petrochemical, rubber, packaging and printing, shoe, synthetic leather, furniture, automobile and other 11 key industries to speed up the VOCs cut, enhance the level of green manufacturing. By 2018 industry emissions of volatile organic compounds than cut 3.3 million tons in 2015.




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


VOCs are photochemical activity, is formed in the atmosphere is important precursor of particulate matter and ozone, is one of the important sources of atmospheric pollution. And the industry is a key areas of VOCs emissions, accounting for more than 50% of the total, industrial VOCs emissions intensity, high concentration, pollutants variety, difficult to recycle, control of industrial emissions of VOCs is the key of the prevention and control of atmospheric pollution.

By 2018, the industry VOCs emissions cuts than in 2015 more than 2015 tons, reduce benzene, toluene, xylene, dimethylformamide (DMF), and other solvents, help the usage by more than 20%, low (no) green pesticide formulation of VOCs and tire, coating, ink, adhesives products reached 70%, 60%, 70%, 60% and 70% above. Specific measures include:

Raw material substitution: in pesticide, coating, crosslinking agent, printing ink industry, promote the use of green solvents and green paint, green biodegradable products, limit the use of harmful solvents, additives;

Technology transformation: in the petroleum chemical industry, rubber, packaging and printing, shoe, synthetic leather, furniture, automobile industries, encourage the use of advanced clean production technology, reduce VOCs emissions from the production technology;

Recovery comprehensive treatment: according to the VOCs emission characteristics of different industries, the choice of targeted therapy effect of processing technology for disposal of VOCs waste gas.

Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd 

Diethyl toluene diamine(DETDA)  http://www.yaruichem.com