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Crosslinking agent for polyamide coatings of lipid ring
2017-7-23 17:50:37
Crosslinking agent for polyamide coatings of lipid ring
Is a linear thermoplastic resin, epoxy resin itself does not harden, and do not have any performance, only to join the crosslinking agent, to make it by the linear structure/couplet net or body structure, the formation of insoluble molten material, not only has good performance; And the performance of the crosslinking products is largely dependent on cross-linking agents, so. Crosslinking agent is an important component of epoxy resins.
The epoxy and hydroxyl groups that can be used with epoxy resin to make the resin crosslinked substances, called crosslinking agents, also called hardeners or crosslinking agents.
According to the temperature required for hardening, two types of heating hardener and room temperature hardener can be classified. If according to different chemical structure type, can be divided into amine type hardener, anhydride type hardener, resin hardener, mimidazol-type hardener and latent hardener etc. According to the physical state of the hardener can be divided into two categories: liquid hardener and solid hardener.
In addition to the use or modification of polyamide crosslinking agent, it can be used in combination. The melting point of polyamine mixture is reduced due to the mixing of polyamine, making it easy to use with epoxy resin.
The combination of polyamine and polyamine is very different from the reaction activity of polyamine, so it is very different from the performance of the crosslinking produced by epoxy resin.
Lipid ring polyamide crosslinking agent variety
Dimethyl-cyclohexane, one. 3, BAC, C260, c6h8 (H2NCH2) 2, brown liquid, with 18 per 100 standard resin, the annular multiple amine can't completely at room temperature crosslinking, needed after crosslinking, 80-80 ℃, HDT of 150 ℃ or so. Promotion agent: tertiary amine, triphenyl phosphite, salicylic acid, cresol, etc.
Chinese name: Diethyl toluene diamine(DETDA)Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
A reagent grade additives
Meng alkyl diamine, MDA, (CH3) C6H8 (H2N), C (CH3) 2 nh2, molecular weight 169, lively hydrogen equivalent 42.2, pale yellow liquid, resin with 6-22 per 100 standard, heating crosslinking, 80-130 ℃, 2 hours and 30 minutes, long period of 50 grams of 25 ℃ 8 to 16 hours. Thermal deformation temperature of 148-158 ℃, bending strength, 1050-1190 kg/cm2, and compressive strength of 710 kg/cm2, the tensile strength of 610 kg/cm2, 2.9% elongation, impact strength, 0.4 feet - pounds per inch, rockwell hardness of 105. Low viscosity and long application period. Heating rapidly crosslinking, toxicity is small.
Aminoethyl gung, AEP, H2NC2H4N2C4H9, molecular weight 129, lively hydrogen equivalent 43, colorless liquid, each 100 standard resin with 13-23, room temperature to 200 ℃ crosslinking, 3 days - 30 minutes, 50 g applicable period of 25 ℃ for 30 minutes, thermal deformation temperature of 100-120 ℃, the compressive strength of 590 kg/cm2, the tensile strength of 610 kg/cm2, 8.8% elongation, impact strength, 1-1.2 ft - pounds per inch, rockwell hardness of 95-105. It can be interlinked at room temperature with high heat and short application period. Good impact resistance
Hexahydropyridine, HHP, NC5H11, molecular weight 85, active hydrogen equivalent 85, colorless liquid, with 5 to 7 servings per 100 standard resins
Isophorone diamine, IPDA, (CH3) 2, C6H3 (CH3) (CH2NH2), molecular weight 169, lively hydrogen equivalent 42.2, colorless liquid, each with 24, 100 standard resin crosslinking 80 ℃ for 4 hours + 150 ℃ for 4 hours, 24 hours at room temperature. Performance: the applicable period 400 grams of 25 ℃ and 50 ℃ 75 minutes 10-15 minutes, Martin heat resistant 135 ℃, (thermal deformation temperature of 149 ℃), the bending strength of 1250 kg/cm2, impact strength, 17 kg - cm/cm2, tensile strength, 730 kg/cm2, and elongation at break of 3.6, tg, delta, 0.002 (25 ℃, and 100 c/S), the surface resistance is greater than 1012 Ω (1000 v) volume resistance is greater than 1000 Ω. Cm (1000 v), dielectric constant (50 hz 23 ℃) 3.78, power factor (50 hz 23 ℃) 0.002, the crosslinking temperature, low temperature performance is good.
Two amino ring n-hexane, DAHM, (NH2) 2, C6H4, molecular weight 112, colorless liquid, lively hydrogen equivalent 28, every 100 standard resin with 14-16, crosslinking 7 days at room temperature and 70 ℃, 2 hours.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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