News Details
Water-based coating of isocyanate crosslinking agent
2017-3-28 11:22:27
Water-based coating of isocyanate crosslinking agent,With the deepening of the public understanding of environmental protection, national laws and standard gradually improve, paint and other industries is becoming more and more high to the requirement of environmental protection. Water-based paint is oily coating greatly reduces the VOC emissions, and to a certain extent avoid benzene content such as carcinogens, so its application is becoming more and more widely.
Among them, 2 k PU water with its huge oily appearance and performance has been closely watched.
Series of hydrophilic modification of isocyanate crosslinking agent, waterborne 2 k PU solution and the development and application promotion, to provide customers with quality products and services.
Family of water-based isocyanate crosslinking agent according to modified methods are divided into two categories:
Polyether modified crosslinking agent has excellent water resistance and excellent cost performance; And sulfonic acid modification can be done not only highlights, high transparent, also can cover flat or dumb light system.
Isocyanate crosslinking agent with different types of resin can be applied to different areas:
Collocation of single-component PUD/PUA/PA: mainly used for wood coatings, can significantly improve the single-component anti-seepage color, chemical resistance, hardness and adhesion as well as ascend.
Collocation OH - PA emulsion: can be used in the floor of the coating and wooden seal primer, with features of quick drying, high hard and good sealing ability.
Collocation OH - PUD dispersion: mainly used in plastic soft touch paint, provide excellent flexibility, abrasion resistance and chemical resistance.
Collocation OH - PA dispersion: can be applied to metal, plastic, wood, floor paint, such as multiple directions, has many characteristics, such as specular, high, high hardness, and can provide excellent weather resistance and chemical resistance.
Isocyanate is the floorboard of all sorts of isocyanic acid ester. If the number of classification with - NCO groups, including single isocyanate R - N = C = O and diisocyanate O = C = N - R - N = C = O and more isocyanate, etc.
Single isocyanate is one of the important intermediates in organic synthesis, can be made into a series of carbamate insecticides, fungicides, herbicides, and also to improve waterproof plastic, fabric, leather, etc. More than two functional groups and isocyanate can be used in the synthesis of a series of excellent performance of polyurethane foam plastic, rubber, elastic fiber, paint, adhesives, synthetic leather, artificial wood, etc.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Uses:
The product is identical to Ethancure 100 and Lonza DETDA 80, DETDA is very effective polyurethane elastomer chain extender; also be used as polyurethane and epoxy resin curing agent, epoxy resin of an antioxidant, industrial oils and lubricants . In addition, also as intermediates in organic synthesis.Especially for the RIM (reaction injection molding), is important in the field of spray polyurea chain extender species. Also can be used for casting polyurethane elastomer (CPU) and a curing agent, epoxy curing agent, epoxy resin of antioxidants, lubricants and industrial oils other antioxidants.
Currently, the largest output is the most widely used are: Toluene Diisocyanate (Toluene Diisocyanate, TDI); Diphenyl methane Diisocyanate (Methylenediphenyl Diisocyanate, MDI).
Toluene diisocyanate (TDI) is a colorless, has a strong pungent flavour liquid, the boiling point of 251 ° C, specific gravity 1.22, with light black, has strong stimulation to the skin, eyes, and can cause eczema with bronchial asthma, is mainly used for polyurethane foam plastics, coating, synthetic rubber, insulating paint, adhesives, etc. According to its composition, tdi is a nitrogenous base of organic compounds.
Diphenyl methane diisocyanate (MDI) is divided into pure MDI and crude MDI. Pure MDI under normal temperature for white solid, when heated to stimulate the stink, the boiling point of 196 ° C, it is mainly used for rigid polyurethane foam plastics, synthetic fiber, synthetic rubber, synthetic leather, adhesives, etc. According to its composition, pure diphenyl methane diisocyanate was nitrogenous organic compounds.
And the yellow variant 1, 6 - diisocyanate (HDI).
Industry mainly adopts primary amine production isocyanate phosgene method, the reaction is as follows: by diamine diisocyanate can be obtained from phosgene method: with the progress of science and technology and the deepening of the synthesis theory, nitro compounds directly with carbon monoxide catalytic synthesis of isocyanate process of high temperature and high pressure is more and more mature.
Because isocyanate structure containing unsaturated bond, so it is highly reactive, easily with some active group of inorganic and organic reactions, polyurethane elastomer.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Among them, 2 k PU water with its huge oily appearance and performance has been closely watched.
Series of hydrophilic modification of isocyanate crosslinking agent, waterborne 2 k PU solution and the development and application promotion, to provide customers with quality products and services.
Family of water-based isocyanate crosslinking agent according to modified methods are divided into two categories:
Polyether modified crosslinking agent has excellent water resistance and excellent cost performance; And sulfonic acid modification can be done not only highlights, high transparent, also can cover flat or dumb light system.
Isocyanate crosslinking agent with different types of resin can be applied to different areas:
Collocation of single-component PUD/PUA/PA: mainly used for wood coatings, can significantly improve the single-component anti-seepage color, chemical resistance, hardness and adhesion as well as ascend.
Collocation OH - PA emulsion: can be used in the floor of the coating and wooden seal primer, with features of quick drying, high hard and good sealing ability.
Collocation OH - PUD dispersion: mainly used in plastic soft touch paint, provide excellent flexibility, abrasion resistance and chemical resistance.
Collocation OH - PA dispersion: can be applied to metal, plastic, wood, floor paint, such as multiple directions, has many characteristics, such as specular, high, high hardness, and can provide excellent weather resistance and chemical resistance.
Isocyanate is the floorboard of all sorts of isocyanic acid ester. If the number of classification with - NCO groups, including single isocyanate R - N = C = O and diisocyanate O = C = N - R - N = C = O and more isocyanate, etc.
Single isocyanate is one of the important intermediates in organic synthesis, can be made into a series of carbamate insecticides, fungicides, herbicides, and also to improve waterproof plastic, fabric, leather, etc. More than two functional groups and isocyanate can be used in the synthesis of a series of excellent performance of polyurethane foam plastic, rubber, elastic fiber, paint, adhesives, synthetic leather, artificial wood, etc.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Uses:
The product is identical to Ethancure 100 and Lonza DETDA 80, DETDA is very effective polyurethane elastomer chain extender; also be used as polyurethane and epoxy resin curing agent, epoxy resin of an antioxidant, industrial oils and lubricants . In addition, also as intermediates in organic synthesis.Especially for the RIM (reaction injection molding), is important in the field of spray polyurea chain extender species. Also can be used for casting polyurethane elastomer (CPU) and a curing agent, epoxy curing agent, epoxy resin of antioxidants, lubricants and industrial oils other antioxidants.
Currently, the largest output is the most widely used are: Toluene Diisocyanate (Toluene Diisocyanate, TDI); Diphenyl methane Diisocyanate (Methylenediphenyl Diisocyanate, MDI).
Toluene diisocyanate (TDI) is a colorless, has a strong pungent flavour liquid, the boiling point of 251 ° C, specific gravity 1.22, with light black, has strong stimulation to the skin, eyes, and can cause eczema with bronchial asthma, is mainly used for polyurethane foam plastics, coating, synthetic rubber, insulating paint, adhesives, etc. According to its composition, tdi is a nitrogenous base of organic compounds.
Diphenyl methane diisocyanate (MDI) is divided into pure MDI and crude MDI. Pure MDI under normal temperature for white solid, when heated to stimulate the stink, the boiling point of 196 ° C, it is mainly used for rigid polyurethane foam plastics, synthetic fiber, synthetic rubber, synthetic leather, adhesives, etc. According to its composition, pure diphenyl methane diisocyanate was nitrogenous organic compounds.
And the yellow variant 1, 6 - diisocyanate (HDI).
Industry mainly adopts primary amine production isocyanate phosgene method, the reaction is as follows: by diamine diisocyanate can be obtained from phosgene method: with the progress of science and technology and the deepening of the synthesis theory, nitro compounds directly with carbon monoxide catalytic synthesis of isocyanate process of high temperature and high pressure is more and more mature.
Because isocyanate structure containing unsaturated bond, so it is highly reactive, easily with some active group of inorganic and organic reactions, polyurethane elastomer.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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