News Details
The cashew phenolic water-based polyurethane coating crosslinking agent
2017-6-18 17:34:10
The cashew phenolic water-based polyurethane coating crosslinking agent
With bio-based cashew phenol as the starting material to synthesize cashew phenol glycol (CD), with natural polyol sucrose as the crosslinking agent, under the condition of no catalyst synthesized by crosslinking type cashew phenol based waterborne polyurethane.
By FT - IR, XRD, 1 h NMR studies of the structure of polyurethane, and explores the different molar ratio of sugar/CD hydroxyl than material particle size distribution, tensile properties, thermal properties, the influence of the water.
The results show that sucrose and CD successfully plug in the chain of polyurethane, and the molecular chain is disordered. After modification, the size of the emulsion is increased, the material is waterproof and the tensile strength is improved obviously, and the heat stability of the material is improved. When the sucrose and CD molar ratio of alcohol to 1:1, the film 24 h bibulous rate is 11.3%, the tensile strength of 34.9 MPa, the elongation at break was 1164%, the initial thermal decomposition temperature is 238 ℃, material comprehensive performance is the best.
Rubber paint is made of natural rubber derivative or synthetic rubber. The characteristics of rubber paint are the density of coating, good anti-permeability, rich solubility and high physical mechanical strength. The coating is good for corrosion resistance, oil resistance and water resistance.
Chlorinated rubber coating can be used in the temperature under 70 ℃, usually in a dry atmosphere, the temperature at 100 ℃ coating won't break down. Chlorinated rubber coating has good acid alkali and seawater resistance, coating is non-combustible, but it is not resistant to solvent and oxidative acid corrosion. Mainly used for petrochemical equipment and ships. When using, you should pay attention to the matching of primer and surface paint.
Black neoprene rubber can be used as a dry and fast coating, which can be corroded and easily removed after corrosion. Suitable for the temporary protection of aluminum and aluminum alloy milling. When diluted, you can use toluene or xylene.
Oil is a very old and basic paint material. It is made of dry oil as a coating material.
It is the main forming material of oil and oil silting. It is made up of a mixture of different types of fatty acids and glycerin.
The coating film made of tung oil is the advantage of being dry, fast, strong, water resistant, light resistant and alkali resistant. But dosage should not be too much or use alone, otherwise it will lose the above advantages. Used in appropriate amount of other dry oil.
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
Linseed oil dry performance slightly inferior to tung oil, catalpa oil, but the durability of tung oil is good, and poor light fastness, paint film has good flexibility, but easy to turn yellow, not white paint.
Soybean oil is half dry oil, the dry sex is inferior, the coating is not easily yellow, can make white lacquer. Often mixed with tung oil.
The oil is also known as the oil, which is better than linseed oil, and the coating is more tenacious.
The oil of castor oil is not dry oil, the dry sex of the oil is good, the coating is not yellow, this is the main source of oil in coating industry.
Oil paint quality is reliable, it has better penetration, oh after coating is dry, its oxidation still did not stop, until the coating aging, it is widely used in architectural paint.
Grease paint into touch mainly with the oxygen in air to work, so the slow drying, not resistant to acid and alkali, wear resistance is not good, it's easy to fall off with the basic material in the cement and, so the new construction of concrete surface can't immediately with the paint. The other feature of oil paint is that the speed of the touch is accelerated by the temperature rise, so the temperature of the paint can be increased appropriately to speed up the touch.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
With bio-based cashew phenol as the starting material to synthesize cashew phenol glycol (CD), with natural polyol sucrose as the crosslinking agent, under the condition of no catalyst synthesized by crosslinking type cashew phenol based waterborne polyurethane.
By FT - IR, XRD, 1 h NMR studies of the structure of polyurethane, and explores the different molar ratio of sugar/CD hydroxyl than material particle size distribution, tensile properties, thermal properties, the influence of the water.
The results show that sucrose and CD successfully plug in the chain of polyurethane, and the molecular chain is disordered. After modification, the size of the emulsion is increased, the material is waterproof and the tensile strength is improved obviously, and the heat stability of the material is improved. When the sucrose and CD molar ratio of alcohol to 1:1, the film 24 h bibulous rate is 11.3%, the tensile strength of 34.9 MPa, the elongation at break was 1164%, the initial thermal decomposition temperature is 238 ℃, material comprehensive performance is the best.
Rubber paint is made of natural rubber derivative or synthetic rubber. The characteristics of rubber paint are the density of coating, good anti-permeability, rich solubility and high physical mechanical strength. The coating is good for corrosion resistance, oil resistance and water resistance.
Chlorinated rubber coating can be used in the temperature under 70 ℃, usually in a dry atmosphere, the temperature at 100 ℃ coating won't break down. Chlorinated rubber coating has good acid alkali and seawater resistance, coating is non-combustible, but it is not resistant to solvent and oxidative acid corrosion. Mainly used for petrochemical equipment and ships. When using, you should pay attention to the matching of primer and surface paint.
Black neoprene rubber can be used as a dry and fast coating, which can be corroded and easily removed after corrosion. Suitable for the temporary protection of aluminum and aluminum alloy milling. When diluted, you can use toluene or xylene.
Oil is a very old and basic paint material. It is made of dry oil as a coating material.
It is the main forming material of oil and oil silting. It is made up of a mixture of different types of fatty acids and glycerin.
The coating film made of tung oil is the advantage of being dry, fast, strong, water resistant, light resistant and alkali resistant. But dosage should not be too much or use alone, otherwise it will lose the above advantages. Used in appropriate amount of other dry oil.
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
Linseed oil dry performance slightly inferior to tung oil, catalpa oil, but the durability of tung oil is good, and poor light fastness, paint film has good flexibility, but easy to turn yellow, not white paint.
Soybean oil is half dry oil, the dry sex is inferior, the coating is not easily yellow, can make white lacquer. Often mixed with tung oil.
The oil is also known as the oil, which is better than linseed oil, and the coating is more tenacious.
The oil of castor oil is not dry oil, the dry sex of the oil is good, the coating is not yellow, this is the main source of oil in coating industry.
Oil paint quality is reliable, it has better penetration, oh after coating is dry, its oxidation still did not stop, until the coating aging, it is widely used in architectural paint.
Grease paint into touch mainly with the oxygen in air to work, so the slow drying, not resistant to acid and alkali, wear resistance is not good, it's easy to fall off with the basic material in the cement and, so the new construction of concrete surface can't immediately with the paint. The other feature of oil paint is that the speed of the touch is accelerated by the temperature rise, so the temperature of the paint can be increased appropriately to speed up the touch.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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