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Common coating crosslinking agent
2017-6-25 16:25:40
Common coating crosslinking agent
This article selects the on the domestic market at present commonly used several kinds of typical crosslinking agent, the application of the system test, studies the different types of crosslinking agent on the properties of epoxy resins coatings, based on this, advances the epoxy coatings for crosslinking agent solution for your reference.
On the domestic market at present the epoxy crosslinking agent variety, described function also has different degree of exaggeration, and found many problems in the practical use, how to correctly choose crosslinking agent products, users we made some research in this respect, from theoretical and practical application has carried on the concrete discussion.
In order to do the contrast research, we selected the representative samples of several kinds of crosslinking agent on the analysis and test of these samples are respectively 593 crosslinking agent, no.t31.welcome crosslinking agent, crosslinking agent, crosslinking agent, 810 651 ketone imide crosslinking agent, NX - 2040, several kinds of crosslinking agent, and from the literature and an introduction to the data, from the theoretical analysis has the following features:
593 crosslinking agent is diethylene triamine epoxy propane butyl ether and the product of addition reaction, can be at room temperature and epoxy crosslinking reaction, because of its molecular structure containing long chain structure of C11, therefore has good toughness and bending and impact strength.
The nx-2040 is a unique, non-phenolic, non-phenolic compound in the American cadet. Its molecular structure is the long fat chain with excellent hydrophobic and hydrophobic, the normal temperature is high in fatty amine, and also has the chemical corrosive benzene ring structure.
It has the low temperature of the general phenolic amine, the wet quick crosslinking, the long operation period of the normal low molecular polyamide crosslinking agent, the excellent flexibility and the wide resin mixture ratio. Its unique structure makes it widely used in environmental protection, high performance, low cost, multi-purpose, fast crosslinking, and represervative epoxy resin coating.
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
Compare the performance of the crosslinking agent to facilitate, in this paper, according to the dosage of crosslinking agent of proportioning, use the same kind of material has carried on the crosslinking reaction of epoxy resin, after 24 hours at room temperature, measure its mechanical properties, and after a week of maintenance period, then the chemical properties of the test at the same time.
Mechanical differences mainly reflected in the performance of coating on hardness, gel time and film drying time, the order of the paint film hardness (from big to small) in the order: 651, no.t31.welcome, 2040, 593, 810, ketone imide, gel time sequence (from big to small) in the order: ketimine, 593, 2040, 651, 2040, no.t31.welcome, the order of the paint film drying time (from big to small) in the order: 593, ketone imide, 810, no.t31.welcome, 651, 651.
Comprehensive performance good crosslinking agent and has a long operating life, at the same time have a faster drying time, film hardness is moderate, there is an abnormal data comparison in test results, which is early 651 poor flexibility and hardness is very high, look from performance is introduced, 651 crosslinking agent should have better flexibility, and initial hardness also should not be too high, analysis the reason may be related to the amount of crosslinking agent, the dosage is too big, can accelerate the drying speed, but at the same time, it will sacrifice some performance, therefore should consider when using the case may be.
Chemical differences mainly reflected in the performance of oil resistance, resistant to oil/water mixed, acid resistance and solvent resistance, you can see from the table, the common fault of the epoxy resin is poor resistance to acid and acetone solvent, ketimine underwater epoxy crosslinking agent, due to its molecular structure contains groups of water molecules, and so the poor resistance to water and salt fog resistance, no.t31.welcome crosslinking agent, crosslinking agent 651 oil-water mixed resistance is poorer, crosslinking agent, crosslinking agent 593 810 oil resistance and oil/water mixed resistance is poorer, no.t31.welcome, 651, 810, and 593 crosslinking agent of other performance is pretty good.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
This article selects the on the domestic market at present commonly used several kinds of typical crosslinking agent, the application of the system test, studies the different types of crosslinking agent on the properties of epoxy resins coatings, based on this, advances the epoxy coatings for crosslinking agent solution for your reference.
On the domestic market at present the epoxy crosslinking agent variety, described function also has different degree of exaggeration, and found many problems in the practical use, how to correctly choose crosslinking agent products, users we made some research in this respect, from theoretical and practical application has carried on the concrete discussion.
In order to do the contrast research, we selected the representative samples of several kinds of crosslinking agent on the analysis and test of these samples are respectively 593 crosslinking agent, no.t31.welcome crosslinking agent, crosslinking agent, crosslinking agent, 810 651 ketone imide crosslinking agent, NX - 2040, several kinds of crosslinking agent, and from the literature and an introduction to the data, from the theoretical analysis has the following features:
593 crosslinking agent is diethylene triamine epoxy propane butyl ether and the product of addition reaction, can be at room temperature and epoxy crosslinking reaction, because of its molecular structure containing long chain structure of C11, therefore has good toughness and bending and impact strength.
The nx-2040 is a unique, non-phenolic, non-phenolic compound in the American cadet. Its molecular structure is the long fat chain with excellent hydrophobic and hydrophobic, the normal temperature is high in fatty amine, and also has the chemical corrosive benzene ring structure.
It has the low temperature of the general phenolic amine, the wet quick crosslinking, the long operation period of the normal low molecular polyamide crosslinking agent, the excellent flexibility and the wide resin mixture ratio. Its unique structure makes it widely used in environmental protection, high performance, low cost, multi-purpose, fast crosslinking, and represervative epoxy resin coating.
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
Compare the performance of the crosslinking agent to facilitate, in this paper, according to the dosage of crosslinking agent of proportioning, use the same kind of material has carried on the crosslinking reaction of epoxy resin, after 24 hours at room temperature, measure its mechanical properties, and after a week of maintenance period, then the chemical properties of the test at the same time.
Mechanical differences mainly reflected in the performance of coating on hardness, gel time and film drying time, the order of the paint film hardness (from big to small) in the order: 651, no.t31.welcome, 2040, 593, 810, ketone imide, gel time sequence (from big to small) in the order: ketimine, 593, 2040, 651, 2040, no.t31.welcome, the order of the paint film drying time (from big to small) in the order: 593, ketone imide, 810, no.t31.welcome, 651, 651.
Comprehensive performance good crosslinking agent and has a long operating life, at the same time have a faster drying time, film hardness is moderate, there is an abnormal data comparison in test results, which is early 651 poor flexibility and hardness is very high, look from performance is introduced, 651 crosslinking agent should have better flexibility, and initial hardness also should not be too high, analysis the reason may be related to the amount of crosslinking agent, the dosage is too big, can accelerate the drying speed, but at the same time, it will sacrifice some performance, therefore should consider when using the case may be.
Chemical differences mainly reflected in the performance of oil resistance, resistant to oil/water mixed, acid resistance and solvent resistance, you can see from the table, the common fault of the epoxy resin is poor resistance to acid and acetone solvent, ketimine underwater epoxy crosslinking agent, due to its molecular structure contains groups of water molecules, and so the poor resistance to water and salt fog resistance, no.t31.welcome crosslinking agent, crosslinking agent 651 oil-water mixed resistance is poorer, crosslinking agent, crosslinking agent 593 810 oil resistance and oil/water mixed resistance is poorer, no.t31.welcome, 651, 810, and 593 crosslinking agent of other performance is pretty good.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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