Modified phenolic amine coating crosslinking agent

Modified phenolic amine coating crosslinking agent, phenolic aldehyde amine type is also called mannich crosslinking agent, because of containing phenol hydroxyl and amine hydrogen activation, improves the heat resistance and corrosion resistance of products. Further modification studies, mainly adjust the structure of long chain and increase flexibility.

H - 5, and 6 H - type crosslinking agent on the basis of long chain alicyclic amine, not only increased flexibility, volatile, and reduce the irritating to the skin. At the same time, introduced in the molecular structure of crosslinker crosslinked promoting role of hydroxyl groups, with humidity and low temperature crosslinking properties, and improve the heat resistance and corrosion resistance of the crosslinked product.

And use the same mannich reaction, but not to join multiple amine, and join the dimethylamine, there are both phenolic base and crosslinking agent molecules in tertiary amine, have catalytic effect, can improve the activity of crosslinking and film-forming properties. American gas company K - 54 and mark the company's T - 31 are such crosslinking agent.

Using a series of natural cashew nut shell liquid as the main raw material synthesis of long chain instead of the phenolic aldehyde amine crosslinking agent. It contains aliphatic diamine client base, and weak acid containing phenol hydroxyl, and the C15 amylose with unsaturated double bond.

This unique molecular structure to make it as general phenolic aldehyde amine and the performance of the low molecular weight polyamide with epoxy resin with long period, can fast crosslinked at room temperature, can under the condition of low temperature, moisture crosslinking, and non-toxic, coating flexibility, excellent wear resistance and corrosion resistance.

As a result, the crosslinking agent has been widely used in industrial and anticorrosive coating and coating of construction projects, has won the acceptance of the industry. Many domestic companies, such as Shanghai dole company, shandong beauty company, xuzhou zhongyan company also have the similar product development.




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).


AH series of long-chain phenolic aldehyde amine crosslinking agent, with phenol, diverse amines, fatty acid and formaldehyde as raw material, developed into a low temperature, room temperature and the temperature of crosslinking agent. This series of products good water resistance, oil resistance, and can according to need to design the molecular structure.

T - 30 toughening type phenolic aldehyde amine crosslinking agent at room temperature. The product does not contain free phenol, formaldehyde and organic solvents, low odor, low toxicity, colour and lustre is light, can be used in the paint. Compared with the original brand products, the crosslinking rate constant and flexibility, and can achieve good toughening epoxy resin with flexibility and impact strength, wet conditions and underwater are crosslinked at the same time. Also successfully developed brand of 4 t - with the types of crosslinking agent, 28 crosslinking the slower, suitable for summer heat environment construction.

With nonyl phenol and formaldehyde dimers as raw material, which is formed by the synthesis of a new type structure of toughening epoxy crosslinking agent - double (2 - hydroxy - 3 - amine methyl ethyl amine - 5 - nonyl phenyl) methane (BA). As existing in the molecular structure of BA nonyl, occur within the relaxation after crosslinking, can improve the flexibility of resin, its impact strength than ordinary aromatic amine crosslinker increased by 36.91%, with highly active and toughening effect.

701 crosslinking agent (benzoic acid, formaldehyde and hexamethylenediamine condensation compound) reaction with methyl isobutyl ketone made phenolic aldehyde ketone imide, with humidity, low temperature crosslinking properties not only, but also with phenolic skeleton, to further improve the moisture resistant and corrosion products of crosslinking, has better application performance.
TZ series phenolic aldehyde amine crosslinking agent is a kind of orange or red brown transparent liquid, and is used as epoxy adhesives sealant crosslinking agent.

And sealant used for epoxy adhesives of crosslinking agent, the dosage of reference 10 ~ 30, for 40 ~ 120 min. When E - 51: TZ: anhydrous ethanol = 100: when (quality), crosslinking conditions at room temperature 30 ℃ / 1 d + / 2 d + / 4 d at room temperature, crosslinking material tensile strength (MPa) for 45 (TZ - 46), 47 (TZ - 50), 52 (TZ - 500), 53 (TZ - 550), 53 (TZ600). In low temperature, humidity or water crosslinking, shall be appropriately increased cross-linking agent can be up to 50 ~ 80.

Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd 
 
Diethyl toluene diamine(DETDA)  http://www.yaruichem.com