Low temperature crosslinking agent epoxy powder coating

Low temperature crosslinking agent epoxy powder coating,Is a ring amidine chemical structure of imidazoline. It can be used as crosslinking agent also can be used as crosslinking promoter, used for pure epoxy powder coating or epoxy - polyester hybrid powder coatings. A 2 - methyl imidazole moderate crosslinking catalytic effect, add more similar.

Low temperature crosslinking agent epoxy powder coating

1, with high reactivity epoxy powder coating can be used as a crosslinking agent. Adding amount of epoxy amount of 5 ~ 7%.

2, can be used as dicyandiamide crosslinked epoxy powder coating or epoxy - polyester blended powder coating crosslinked accelerator, and can be appropriately increase luster, add 0.05 to 0.3% of the total amount for the formula.

3, due to the low temperature crosslinking agent epoxy powder coating has high reactivity, so in the process of epoxy powder coating production, extrusion temperature should be controlled in < 100 ℃ condition, in order to prevent the happen of gel.

4, in epoxy powder coating can be used as a quick crosslinking agent and crosslinking agent, meet 15 min ~ 200 ℃ 130 ℃ * * crosslinking conditions of 5 min. Epoxy powder coating of low temperature crosslinking agent if cooperate with other active crosslinking agent, and may be used as more effective quick crosslinking promoter.

5, also due to the low temperature crosslinking agent of highly active epoxy powder coating, so when it as crosslinking agent will produce storage stability problem, should be taken seriously. Itself can agglomerate, made into powder should also be in store below 25 ℃.

Low temperature crosslinking agent reference epoxy powder coating formula is as follows:

1264% epoxy E -

Crosslinking agent 3024%

Catalyst 3040.5%

Flow ping agent H981 %

Titanium dioxide 20%

Precipitated barium 10.5%

Extrusion temperature: 70-80

Crosslinking temperature: 120 ℃ * 30 min bending, impact, however.

130 ℃ * 15 min bending, hit 1250 px/kg




Chinese name: Diethyl toluene diamine(DETDA)

Diethyltoluenediamine packing： 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).


Coating surface slightly yellow, orange peel, decrease catalysts can improve the generic Huang Jie skin phenomenon.

Imidazoline English name: N - (2 - Hydroxyethyl) - 2 - heptadecenyl - 2 - imidazoline; Hydroxyethyl heptadecenyl glyoxalidine; 1 h - Imidazole - 1 - ethanol, 2 - (heptadecenyl) - 4, 5 - dihydro -; 1 - HYDROXYETHYL - 2 - HEPTADECENYLIMIDAZOLINE; 2 - (Heptadecenyl) - 4, 5 - dihydro - 1 h - imidazol - 1 - ethanol; 1 - (2 - hydroxyethyl) - 2 - (heptadecenyl) imidazoline; 1-2 - heptadecenyl imidazoline hydroxyethyl

Imidazoline is also called the second hydrogen imidazole (dihydroimidazole). There are 4, 5 -, 2, 5 - and 2, 3-2 hydrogen imidazole three isomers, respectively called 2 - or according to the double bond position and imidazoline, 3-4 - imidazoline imidazoline and.

Is strongly alkaline, low melting point solid. Soluble in most organic solvents, has good foamability, net washing, emulsification, hard water resistance, antistatic property and soft fabric, such as performance, and has the characteristics of high nontoxic and biodegradable, but also has the ability of sterilization and disinfection. What's more important is it for the skin and eyes. It was stable in acid and alkaline medium, can be associated with Yin and Yang, non-ionic surfactants.

By ethylenediamine or its acyl chloride in the presence of calcium oxide heating system. Or by fatty acids or fatty acid ester and ethylene diamine condensation was; Can also be used glyoxal, formaldehyde, ammonia as raw materials was imidazole, hydrogenation was prepared.

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