News Details
Fatty polyamide coatings crosslinking agent
2017-8-11 23:49:04
Fatty polyamide coatings crosslinking agent
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
Epoxy resin crosslinking has excellent mechanical properties, electrical properties and chemical resistance, so it is widely used. Crosslinking agent is one of the raw materials necessary for the crosslinking of epoxy resin, otherwise the epoxy resin will not be cross-linked. Appropriate crosslinking agents should be used to meet the requirements of various applications.
There are many kinds of crosslinking agents for fatty polyamines.
Ethylene diamine edah2nch2ch2ch2ch2nh2 molecular weight 60 active hydrogen equivalent 15 colorless liquid per 100 standard resins with 6-8 properties: toxic, stinging smell, volatile, low viscosity, rapid crosslinking at room temperature. For adhesion, pouring, coating. This kind of amine increases with the molecular weight, the viscosity increases, the volatilization decreases, the toxicity decreases, the performance improves. But they have big heat and short duration. In general, the larger the molecular weight, the smaller the influence. Chronic exposure to fatty polyamine can cause dermatitis, which is highly toxic and requires great attention in operation.
Diethylene triamine detah2nc2nc2h4nhc2h4nh2 molecular weight 103 active hydrogen equivalent 20.6 colorless liquid with 8-11 copies per 100 standard resins. Crosslinking: 20 ℃ + 100 ℃ for 30 minutes or 2 hours 20 ℃ for 4 days. Performance: the applicable period of 50 grams of 25 ℃ for 45 minutes, thermal deformation temperature of 95-124 ℃, the bending strength of 1000-1160 kg/cm2, the compressive strength of 1120 kg/cm2, the tensile strength of 780 kg/cm2, elongation is 5.5%, the impact strength 0.4 ft - pounds/rockwell hardness of 99-108. Dielectric constant (50 hz, 23 ℃), power factor 4.1 (50 hz, 23 ℃) 0.009 volume resistance 2 x1016 Ω - cm normal temperature crosslinking, toxicity, heat quantity, suitable period is short.
Triethylene tetramine TETAH2NC2H4NHC2H4NHC2H4NH2 molecular weight 146 active hydrogen equivalent 24.3 colorless viscous liquid resin with 10 to 13 per 100 standard of crosslinking: 20 ℃ + 100 ℃ for 30 minutes or 2 hours 20 ℃ for 7 days. Performance: the applicable period of 50 grams of 25 ℃ for 45 minutes, thermal deformation temperature of 98-124 ℃, the bending strength of 950-1200 kg/cm2, the compressive strength of 1100 kg/cm2, the tensile strength of 780 kg/cm2, elongation is 4.4%, the impact strength 0.4 ft - pounds/rockwell hardness of 99-106. Normal temperature crosslinking and toxicity is lower than ethylene triamine, high heat release and short application period.
Tepah2nc2nc2h4 (NHC2H4) 3NH2 molecular weight 189 active hydrogen equivalent 27 brown liquid per 100 standard resins with 11 to 15 properties.
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
NNH2 (nNH2) nNH2 (NHC2H4) nNH2 light yellow liquid is used for 14 to 15 parts per 100 standard resins, with low toxicity, low volatility, long application period and low price.
Dipropylene triamine dp2n (CH2) 3NH (CH2) 3NH2 molecular weight 131 active hydrogen equivalent 26 light yellow liquid each 100 standard resins of 12-15 performance with TETA.
Dimethylamino propylamine DMAPA (CH3) 2 n (CH2) 3 nh2 low viscosity transparent liquid resin with 4 to 7 per 100 standard of toxicity is larger, with two crosslinking and catalytic reaction, good adhesion, flexibility, long shelf life.
Diethylamine base propylamine DEAPA (C2H5) 2 n (CH2) 3 nh2 molecular weight 130 active hydrogen equivalent 65 low viscosity transparent liquid resin with 4 to 8 per 100 standard of crosslinking: 60-70 ℃ for 4 hours. Performance: the applicable period of 50 grams of 25 ℃ for 4 hours, heat distortion temperature 78-94 ℃, 920-1050 kg/cm2, compressive strength tensile strength of 480-640 kg/cm2, the impact strength of 0.2 feet - pounds per inch of rockwell hardness. 90-98. Dielectric constant (50 hz, 23 ℃), power factor 3.75 (50 hz, 23 ℃) 0.007 crosslinking temperature, low temperature performance is good.
TMD (H2N) 2 (C6H9) (CH3) 3 colorless liquid cold crosslinking, long duration and low toxicity. Every 100 standard resin in 21 crosslinking: + 80 ℃ 80 ℃ for 1 hour, 2 hours. Performance: the applicable period 400 grams of 50 minutes 25 ℃ and 50 ℃ for 10 minutes, Martin heat resistant 92 ℃, bending strength, 1150 kg/cm2, the impact strength of 20 kg - 0.0009 cm/cm2tg delta (23 ℃, and 100 c/S) surface resistance 5.4 x1011 Ω (300 v) volume resistance 9 x1015 Ω. Cm (300 v) crosslinking temperature, low temperature performance is good.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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