News Details
An aromatic amine coating crosslinking agent
2017-7-19 16:21:43
An aromatic amine coating crosslinking agent is an amine crosslinking agent which is directly linked with the aromatic ring. The activity of aromatic amine crosslinking agent is lower than that of the fatty amine, and it needs to be crosslinked with epoxy resin.
Between 3.1 phenylene diamine (MPDA) : white crystals, melting point 63 ℃, dosage of 14-15%, can use at 25 ℃ for 8 hours.
Crosslinking conditions: 85 ℃, 2 h; 175 ℃, 1 h. Thermal deformation temperature (HDT) 150 ℃.
3.2 between benzene dimethylamine (MXDA) : colorless transparent liquid, freezing point 12 ℃, easy to use, dosage of 16-20%, ambient crosslinking.
3.34, 4 '- diamino diphenyl sulfone (DDS) : light yellow powder, melting point 178 ℃. Its activity is lowest in aromatic amine. Boron trifluoride complex (methyl ethyl ketone) can promote the DDS crosslinking, can use 75 ℃ for 3 h. Crosslinking conditions of 125 ℃, 2 h; 200 ℃, 2 h. The thermal deformation temperature of 175 ℃.
3.44, 4 '- diamino diphenyl methane (DDM) : white crystal, melting point 89 ℃. 27-30%, can use 25 ℃ for 8 h. Crosslinking conditions of 80 ℃, 2 h; 150 ℃, 2 h. The thermal deformation temperature of 148 ℃.
Double ether, benzyl amine (H2NCH2C6H4) 2 o, each for 30 to 60, 100 standard resin ambient crosslinking, long period, low heat, heat deformation temperature of 68 ℃
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
Between 3.1 phenylene diamine (MPDA) : white crystals, melting point 63 ℃, dosage of 14-15%, can use at 25 ℃ for 8 hours.
Crosslinking conditions: 85 ℃, 2 h; 175 ℃, 1 h. Thermal deformation temperature (HDT) 150 ℃.
3.2 between benzene dimethylamine (MXDA) : colorless transparent liquid, freezing point 12 ℃, easy to use, dosage of 16-20%, ambient crosslinking.
3.34, 4 '- diamino diphenyl sulfone (DDS) : light yellow powder, melting point 178 ℃. Its activity is lowest in aromatic amine. Boron trifluoride complex (methyl ethyl ketone) can promote the DDS crosslinking, can use 75 ℃ for 3 h. Crosslinking conditions of 125 ℃, 2 h; 200 ℃, 2 h. The thermal deformation temperature of 175 ℃.
3.44, 4 '- diamino diphenyl methane (DDM) : white crystal, melting point 89 ℃. 27-30%, can use 25 ℃ for 8 h. Crosslinking conditions of 80 ℃, 2 h; 150 ℃, 2 h. The thermal deformation temperature of 148 ℃.
Double ether, benzyl amine (H2NCH2C6H4) 2 o, each for 30 to 60, 100 standard resin ambient crosslinking, long period, low heat, heat deformation temperature of 68 ℃
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
Mixtures of phenylenediamine and diaminylene diphenylmethane and toluene diphenylenediamine: diamine diphenyl methane: toluene diamine = 30-70:10-50:5-35 mixture is a stable liquid. Cases of 50, m-phenylene diamine, 30 diamino diphenyl methane, 20 toluene diamine (20) between a: para = 80:100 ℃ the liquid mixture, stability up to 9 months. With 18.5 per 100 standard resin, crosslinking 80 ℃ for 2 hours + 140 ℃ for 2 hours. Impact strength 115Kg - cm/cm2, rockwell hardness 105.
Toluene diamine between adjacent toluene diamine, and diamino diphenyl methane mixture, their proportion is for: 60, 23 ℃ in 48 hours not precipitate, and epoxy resin in 45 minutes at 23 ℃ gel.
Diamino-diphenyl methane and isovol diamine mixtures, 40-30% of DDM and 60-70% IPDA mixed and molten, liquid at normal temperature. When DDM mixed with 60% IPDA 40% per 100 standard resin for mixture, 25, 130-155 ℃, thermal deformation temperature of science, the bending strength of 1160 kg/cm2, dielectric constant (50 hz 23 ℃) 3.4, power factor 0.012 (50 hz 23 ℃)
Aromatic polyamine is solid at room temperature, and when mixed with epoxy resin, the exothermic effect is not obvious, but as the temperature rises, the crosslinking system also appears to have a peak exothermic peak. Since aramine-crosslinking system often needs to be heated crosslinking, the effect of exothermic effect should also be paid attention to the forming operation of the crosslinking agent with aromatic amine.
It is important to determine the heat effect of an epoxy system for the selection of crosslinking agent. This can be measured by measuring the heat curve.
Compared with the maximum exothermic temperature of different toppings, we can find the better use of the crosslinking agent on epoxy resin. The reaction performance of different crosslinking agents on epoxy resin can be obtained by comparing the heat release curves of different crosslinking agents.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Mixtures of phenylenediamine and diaminylene diphenylmethane and toluene diphenylenediamine: diamine diphenyl methane: toluene diamine = 30-70:10-50:5-35 mixture is a stable liquid. Cases of 50, m-phenylene diamine, 30 diamino diphenyl methane, 20 toluene diamine (20) between a: para = 80:100 ℃ the liquid mixture, stability up to 9 months. With 18.5 per 100 standard resin, crosslinking 80 ℃ for 2 hours + 140 ℃ for 2 hours. Impact strength 115Kg - cm/cm2, rockwell hardness 105.
Toluene diamine between adjacent toluene diamine, and diamino diphenyl methane mixture, their proportion is for: 60, 23 ℃ in 48 hours not precipitate, and epoxy resin in 45 minutes at 23 ℃ gel.
Diamino-diphenyl methane and isovol diamine mixtures, 40-30% of DDM and 60-70% IPDA mixed and molten, liquid at normal temperature. When DDM mixed with 60% IPDA 40% per 100 standard resin for mixture, 25, 130-155 ℃, thermal deformation temperature of science, the bending strength of 1160 kg/cm2, dielectric constant (50 hz 23 ℃) 3.4, power factor 0.012 (50 hz 23 ℃)
Aromatic polyamine is solid at room temperature, and when mixed with epoxy resin, the exothermic effect is not obvious, but as the temperature rises, the crosslinking system also appears to have a peak exothermic peak. Since aramine-crosslinking system often needs to be heated crosslinking, the effect of exothermic effect should also be paid attention to the forming operation of the crosslinking agent with aromatic amine.
It is important to determine the heat effect of an epoxy system for the selection of crosslinking agent. This can be measured by measuring the heat curve.
Compared with the maximum exothermic temperature of different toppings, we can find the better use of the crosslinking agent on epoxy resin. The reaction performance of different crosslinking agents on epoxy resin can be obtained by comparing the heat release curves of different crosslinking agents.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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