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Common epoxy resin coating crosslinking agent
2017-7-20 17:39:33
Common epoxy resin coating crosslinking agent
In this paper, the common epoxy resin crosslinking agents in the domestic market were selected and tested. The effects of different types of crosslinking agents on the performance of epoxy resin coatings were studied. On this basis, epoxy resin coatings Applicable cross-linker solutions for your reference.
At present, the domestic market on the use of epoxy resin cross-linking agent variety, the function also has varying degrees of exaggeration, and in actual use but found a lot of problems, how can we make the correct choice of cross-linking products, we In this regard made some research, from the theoretical and practical application of a specific discussion.
In order to do this comparative study, we selected a representative common epoxy resin crosslinking agent samples were analyzed and tested, these common epoxy resin crosslinking agent samples were 593 cross-linking agent, T31 cross 1010 cross-linking agent, 810 cross-linking agent, ketimine crosslinking agent, NX-2040, etc., on these types of cross-linking agent, from the literature and information to see, from its theoretical analysis has the following characteristics:
The 593 crosslinker is the product of the addition reaction of diethylene triamine and propylene oxide butyl ether. Can be at room temperature and epoxy resin from the cross-linking reaction, because of its molecular structure contains C11 long chain structure, it has good toughness and bending, impact strength.
T31 cross-linking agent is polyamine, formaldehyde, phenol by Manis reaction
Of the Mannese Plus polyamine, its molecular structure is roughly as follows:
T31 cross-linking agent is the actual non-toxic grade of cross-linking agent, the application of safety, and can be cross-linked bisphenol A-type epoxy resin at low temperatures, 80% humidity and underwater applications, cross-shrinkage.
651 cross-linking agent is a polyamide-based epoxy resin crosslinking agent, tung oleic acid and polyamine reaction of tung oleic acid dimer polyamine, because the structure contains a long fatty acid carbon chain and amino, can make Cross-linked products with high elasticity and adhesion and water resistance, its construction performance is better, the proportion of ingredients is relatively wide, less toxic, basically no volatile matter, can be wet metal and concrete surface construction, the disadvantage is the cross-linking speed Slow, low heat resistance, low heat distortion temperature, resistance to gasoline, poor hydrocarbon solvent.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
In this paper, the common epoxy resin crosslinking agents in the domestic market were selected and tested. The effects of different types of crosslinking agents on the performance of epoxy resin coatings were studied. On this basis, epoxy resin coatings Applicable cross-linker solutions for your reference.
At present, the domestic market on the use of epoxy resin cross-linking agent variety, the function also has varying degrees of exaggeration, and in actual use but found a lot of problems, how can we make the correct choice of cross-linking products, we In this regard made some research, from the theoretical and practical application of a specific discussion.
In order to do this comparative study, we selected a representative common epoxy resin crosslinking agent samples were analyzed and tested, these common epoxy resin crosslinking agent samples were 593 cross-linking agent, T31 cross 1010 cross-linking agent, 810 cross-linking agent, ketimine crosslinking agent, NX-2040, etc., on these types of cross-linking agent, from the literature and information to see, from its theoretical analysis has the following characteristics:
The 593 crosslinker is the product of the addition reaction of diethylene triamine and propylene oxide butyl ether. Can be at room temperature and epoxy resin from the cross-linking reaction, because of its molecular structure contains C11 long chain structure, it has good toughness and bending, impact strength.
T31 cross-linking agent is polyamine, formaldehyde, phenol by Manis reaction
Of the Mannese Plus polyamine, its molecular structure is roughly as follows:
T31 cross-linking agent is the actual non-toxic grade of cross-linking agent, the application of safety, and can be cross-linked bisphenol A-type epoxy resin at low temperatures, 80% humidity and underwater applications, cross-shrinkage.
651 cross-linking agent is a polyamide-based epoxy resin crosslinking agent, tung oleic acid and polyamine reaction of tung oleic acid dimer polyamine, because the structure contains a long fatty acid carbon chain and amino, can make Cross-linked products with high elasticity and adhesion and water resistance, its construction performance is better, the proportion of ingredients is relatively wide, less toxic, basically no volatile matter, can be wet metal and concrete surface construction, the disadvantage is the cross-linking speed Slow, low heat resistance, low heat distortion temperature, resistance to gasoline, poor hydrocarbon solvent.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
810 cross-linking agent is modified amine cross-linking agent, underwater, wet, low temperature (0 ℃), dry conditions, can cross-linked epoxy resin can also be painted on the surface with water, Has a good wetting.
The ketimine crosslinking agent is a product obtained by reacting a ketone with a polyamine, and the structural formula is as follows. A ketone imide crosslinking agent can be used as a moisture condition and an underwater crosslinked coating.
NX-2040 is a unique, non-phenol, versatile substituted phenolic amine epoxy resin crosslinker. Its structure is as follows, its molecular structure, that is, with a good hydrophobic long fat chain, high temperature reaction of high-fat amine, but also with chemical corrosion of benzene ring structure. So that it has a general phenolic amine low temperature, wet fast cross-linking, there are generally low molecular weight polyamide cross-linking agent long operating period, excellent flexibility and wide resin mixing ratio.
Its unique structure, it is in the environment-friendly, high-performance, low cost, multi-purpose, fast cross-linking, heavy anti-corrosion epoxy coatings have been widely used.
In order to facilitate the comparison of the performance of cross-linking agent, according to the amount of cross-linking agent described in the amount of the same epoxy resin with a cross-linking reaction, at room temperature after 24 hours, measured its mechanical properties, and after A week of maintenance period, and then at the same time the chemical performance of the test.
The difference in mechanical properties is mainly reflected in the film hardness, gel time and film drying time, the order of the hardness of the film (from large to small) were: 651, T31,2040,593,810, ketimine, The order of the gel time (from large to small) is: ketimine, 593,2040,651,810, T31, the order of the drying time of the film (from large to small) are: 593, ketimine , 810, T31, 651, 2040.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
810 cross-linking agent is modified amine cross-linking agent, underwater, wet, low temperature (0 ℃), dry conditions, can cross-linked epoxy resin can also be painted on the surface with water, Has a good wetting.
The ketimine crosslinking agent is a product obtained by reacting a ketone with a polyamine, and the structural formula is as follows. A ketone imide crosslinking agent can be used as a moisture condition and an underwater crosslinked coating.
NX-2040 is a unique, non-phenol, versatile substituted phenolic amine epoxy resin crosslinker. Its structure is as follows, its molecular structure, that is, with a good hydrophobic long fat chain, high temperature reaction of high-fat amine, but also with chemical corrosion of benzene ring structure. So that it has a general phenolic amine low temperature, wet fast cross-linking, there are generally low molecular weight polyamide cross-linking agent long operating period, excellent flexibility and wide resin mixing ratio.
Its unique structure, it is in the environment-friendly, high-performance, low cost, multi-purpose, fast cross-linking, heavy anti-corrosion epoxy coatings have been widely used.
In order to facilitate the comparison of the performance of cross-linking agent, according to the amount of cross-linking agent described in the amount of the same epoxy resin with a cross-linking reaction, at room temperature after 24 hours, measured its mechanical properties, and after A week of maintenance period, and then at the same time the chemical performance of the test.
The difference in mechanical properties is mainly reflected in the film hardness, gel time and film drying time, the order of the hardness of the film (from large to small) were: 651, T31,2040,593,810, ketimine, The order of the gel time (from large to small) is: ketimine, 593,2040,651,810, T31, the order of the drying time of the film (from large to small) are: 593, ketimine , 810, T31, 651, 2040.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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