News Details
Modified fat paint crosslinking agent
2017-7-30 23:36:13
Modified fat paint crosslinking agent 593 is the addition of diethylene triamine and butyl glycidyl ether, molecular weight 217.13. Colorless to light yellow transparent viscous liquid with a relative density of 0.985. Viscosity (25 ℃) of 90 ~ 150 mpa, s. Total amines are 500 ~ 700mgKOH/g. It is soluble in ethanol, acetone and other polar solvents, and has some degree of intersolubility with water. Low toxicity.
Use proportion of modified fat crosslinking agent
E - 51 epoxy resin: modified fat crosslinking agent 593B = 100g: 25g ~ 30g (weight ratio)
E-44 epoxy resin: modified fat crosslinking agent 593B = 100g: 22g ~ 28g (weight ratio)
Modified fat crosslinking agent crosslinking condition: 25 degrees / 12 ~ 24 hours or 60 degrees / 1 ~ 2 hours
Main technical indexes of modified fat crosslinking agent:
Outer view: colorless transparent liquid
Color number: no more than 2 (Gardner method)
The amine value: 600-700 mgkoh/g
Modified fat crosslinking agent can be used
25 ℃ for 30 minutes
Modified fat crosslinking agent product use
It is suitable for mold casting, adhesive, seal, anticorrosive paint, civil building, etc.
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).
This kind of modified fat crosslinking agent, room temperature crosslinking. It has the advantages of low viscosity, good color, small toxicity and convenient use. The crosslinking agent contains more active hydrogen, which is smooth, transparent, has some toughness, and has excellent properties of chemical corrosion. 593 crosslinking agent with epoxy resin (represented by E44)? The epoxy resin is 20 ~ 39%, and sometimes can be added with appropriate crosslinking regulator to adjust crosslinking reaction speed and the crosslinking structure of the paint film.
Modified fat cross-linking agent 593 widely used in electronic components and parts of the filling and packaging; Used for building materials repair; Cross-linking agent for adhesion in construction of large buildings, Bridges and ground; Also used in epoxy anti-corrosion coatings. In recent years, 593 crosslinking agents have been widely used in the fields of buttons, belts, secret cases and other decorative coatings and cultural relics protection.
Chromaticity (platinum cobalt color number) 80 ~ 100 / amine value (mgKOH/g) viscosity (25 ℃) / 600 ~ 700 mPa s. 100 ~ 150
593 crosslinking agent is used as the room temperature crosslinking agent for epoxy resin adhesive, and the reference dosage is 18 ~ 28 (100g E - 51 + 593 25 ~ 28g; E - 44 is 22 ~ 23g; e-42 is 20 ~ 22g), and the composition of 100g epoxy resin is applicable. Crosslinking conditions / 24 h at room temperature and 80 ℃ / 4 h. Crosslinked heat deformation temperature of 80 ~ 105 ℃.
Aliphatic amine at room temperature can be crosslinked bisphenol A epoxy resin, but below 15 ℃ low temperature crosslinking slowly. To accelerate the crosslinking reaction, often to join all kinds of promoter, for fatty amine, promoting effect: phenol > triphenyl phosphate > acid > alcohol > tertiary amine > mercaptan, especially the bases and carboxyl instead of phenol to promote greater effect. In the case of aromatic amine, phenol and alcohol have little effect, but salicylic acid has great effect. Acid such as phthalic acid and maleic acid did not promote, which may be because of their reaction to the amine.
Aromatic diamine can be used as an accelerator when heated. The action of peroxide lies in the decomposition of carboxylic acid ions. As a crosslinking agent, the acid anhydride must be added to the accelerator, besides improving the speed of the acid anhydride crosslinking epoxy resin, the crosslinking temperature can be reduced.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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