News Details
Latent coating crosslinking agent varieties
2017-7-20 17:39:40
Latent coating crosslinking agent varieties
Latent cross-linking agent: dicyandiamide, white crystalline powder, melting point 207-209 ° C, 6-12 parts per 100 parts of standard resin, crosslinking: 150 ° C, 4 hours, storage period 6-12 months.
HZ986, R-10 at 20-30 ℃ have good storage stability of its quality indicators are as follows:
Solid content, 9-11%, specific gravity, 1.06-1.09 g / cm 3, viscosity 25 ° C, <5 cps, flash point, 36-43 ° C
Latent crosslinking agent: boron trifluoride monoethylamine, white solid, melting point, 89 ° C, 3 parts per 100 parts of standard resin, crosslinking: 120 ° C, 4 hours, storage period 3-4 months
Boron trifluoride aniline, pale yellow solid, melting point, 250 ° C decomposition, 5 parts per 100 parts of standard resin, crosslinked: 120 ° C, 2 hours, storage period 3-4 weeks
Boron trifluoride o-methylaniline, pale yellow solid, melting point, 250 ° C decomposition, 5 parts per 100 parts of standard resin, crosslinking: 120 ° C, 2 hours, storage period 7-8 days
Boron trifluoride benzylamine, pale yellow solid, m.p. 136-138 ° C, 10 parts per 100 parts of standard resin, crosslinked: 130 ° C, 4 hours, storage period 3-4 weeks
Boron trifluoride dimethylaniline, light green, melting point, 85 ° C, 5 parts per 100 parts of standard resin, crosslinked: 120 ° C, 4 hours, storage period 5-6 days
Boron trifluoride ethylaniline, pale yellow solid, m.p., 48 ° C, 5 parts per 100 parts of standard resin, crosslinked: 120 ° C, 4 hours, storage period 7-8 days
Boron trifluoride pyridine, pale yellow solid, melting point, 73 ° C, 4-9 parts per 100 parts of standard resin, crosslinking: 100 ° C, 4 hours / 140 ° C for 6-8 hours, storage period 3-4 months
594, yellow brown transparent liquid, 4-12 parts per 100 parts of standard resin, crosslinking: 100 ℃, 4 hours / 140 ℃ 6-8 hours, storage period 3-4 months
Sebacic acid dihydrazide, 30 parts per 100 parts of standard resin, crosslinked: 165 ° C, 0.5 hours, storage period 3-4 months
Chinese name: Diethyl toluene diamine(DETDA)
Latent cross-linking agent: dicyandiamide, white crystalline powder, melting point 207-209 ° C, 6-12 parts per 100 parts of standard resin, crosslinking: 150 ° C, 4 hours, storage period 6-12 months.
HZ986, R-10 at 20-30 ℃ have good storage stability of its quality indicators are as follows:
Solid content, 9-11%, specific gravity, 1.06-1.09 g / cm 3, viscosity 25 ° C, <5 cps, flash point, 36-43 ° C
Latent crosslinking agent: boron trifluoride monoethylamine, white solid, melting point, 89 ° C, 3 parts per 100 parts of standard resin, crosslinking: 120 ° C, 4 hours, storage period 3-4 months
Boron trifluoride aniline, pale yellow solid, melting point, 250 ° C decomposition, 5 parts per 100 parts of standard resin, crosslinked: 120 ° C, 2 hours, storage period 3-4 weeks
Boron trifluoride o-methylaniline, pale yellow solid, melting point, 250 ° C decomposition, 5 parts per 100 parts of standard resin, crosslinking: 120 ° C, 2 hours, storage period 7-8 days
Boron trifluoride benzylamine, pale yellow solid, m.p. 136-138 ° C, 10 parts per 100 parts of standard resin, crosslinked: 130 ° C, 4 hours, storage period 3-4 weeks
Boron trifluoride dimethylaniline, light green, melting point, 85 ° C, 5 parts per 100 parts of standard resin, crosslinked: 120 ° C, 4 hours, storage period 5-6 days
Boron trifluoride ethylaniline, pale yellow solid, m.p., 48 ° C, 5 parts per 100 parts of standard resin, crosslinked: 120 ° C, 4 hours, storage period 7-8 days
Boron trifluoride pyridine, pale yellow solid, melting point, 73 ° C, 4-9 parts per 100 parts of standard resin, crosslinking: 100 ° C, 4 hours / 140 ° C for 6-8 hours, storage period 3-4 months
594, yellow brown transparent liquid, 4-12 parts per 100 parts of standard resin, crosslinking: 100 ℃, 4 hours / 140 ℃ 6-8 hours, storage period 3-4 months
Sebacic acid dihydrazide, 30 parts per 100 parts of standard resin, crosslinked: 165 ° C, 0.5 hours, storage period 3-4 months
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).
MS-1 microcapsules, 38 parts per 100 parts of standard resin, crosslinked: 150 ° C, 2 hours, storage period 2 years
MS-2 microcapsules, 50 parts per 100 parts of standard resin, crosslinked: 130 ° C, 2 hours, storage period 2 years
Changes of Molecular Structure in the Process of Crosslinking of Unsaturated Polyester Resin
The crosslinking process of UPR is the process of cross-linking the unsaturated double bond in the UPR molecular chain and the double bond of the crosslinking monomer (usually styrene), and the process of forming the three-dimensional network structure by the linear long chain molecule. In this cross-linking process, there are three possible chemical reactions, namely
1, the reaction between styrene and polyester molecules;
2, the reaction between styrene and styrene;
3, the reaction between polyester molecules and polyester molecules.
The occurrence of these three reactions has been confirmed for various experiments.
It is worth noting that there is a third reaction in the presence of a trans-double bond in the molecular structure of the polyester, that is, the reaction between the polyester molecule and the polyester molecule, which can bind between molecules More closely, which can improve the performance of the resin.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
MS-1 microcapsules, 38 parts per 100 parts of standard resin, crosslinked: 150 ° C, 2 hours, storage period 2 years
MS-2 microcapsules, 50 parts per 100 parts of standard resin, crosslinked: 130 ° C, 2 hours, storage period 2 years
Changes of Molecular Structure in the Process of Crosslinking of Unsaturated Polyester Resin
The crosslinking process of UPR is the process of cross-linking the unsaturated double bond in the UPR molecular chain and the double bond of the crosslinking monomer (usually styrene), and the process of forming the three-dimensional network structure by the linear long chain molecule. In this cross-linking process, there are three possible chemical reactions, namely
1, the reaction between styrene and polyester molecules;
2, the reaction between styrene and styrene;
3, the reaction between polyester molecules and polyester molecules.
The occurrence of these three reactions has been confirmed for various experiments.
It is worth noting that there is a third reaction in the presence of a trans-double bond in the molecular structure of the polyester, that is, the reaction between the polyester molecule and the polyester molecule, which can bind between molecules More closely, which can improve the performance of the resin.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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