News Details
Shrinkage of IPDI urea diketone coating crosslinking agent
2017-4-16 17:46:41
Shrinkage of IPDI urea diketone coating crosslinking agent,Suitable for the production of polyurethane coating without blocking agent in isocyanate crosslinking agent is more close IPDI, it is through the condensation process in alkaline medium. Commodity called IPDI - BF1540! Very low, the content of free NCO groups (less than 1%) and total NCO content is 15.4%. Melting point between ? ? 105-105 range.
IPDI shrinkage urea diketone and closed isocyanate than the most obvious advantage is no by-products left during crosslinking system. So from a technical point of view to BF1540 crosslinking polyurethane TGIC powder coating is the best alternative.
However, although BF1540 commercial time has been more than 15 years, but not to create a satisfactory fixed market. This can be attributed to the reactivity of BF1540 (too low and poor solvent resistance and chemical resistance (because of its functionality (2), etc.
Isophorone diisocyanate IPDI is colorless or light yellow liquid, with camphor smell, and esters, ketones, ethers, aromatics and fatty hydrocarbon organic solvent such as complete miscibility.
IPDI is aliphatic isocyanate, isophorone diisocyanate IPDI is also a kind of alicyclic isocyanate, isophorone diisocyanate IPDI reactivity is lower than aromatic isocyanate, vapour pressure is low. Isophorone diisocyanate IPDI molecules in two different reactivity, NCO groups, because "NCO IPDI molecules in cyclohexane ring and a - instead of methyl steric effect, makes even in cyclohexane para reactivity of NCO group was 1.3 2.5 times higher than" NCO; IPDI and speed than the HDI of hydroxyl groups and hydroxyl 4 to 5 times faster reaction speed.
Isophorone diisocyanate IPDI made of polyurethane resin with excellent light stability and resistance to chemicals, isophorone diisocyanate IPDI commonly used in the manufacture of high-grade polyurethane resin, such as polyurethane coating corrosion resistance, abrasion resistance hydrolysis resistance of polyurethane elastomer, isophorone diisocyanate IPDI also can be used to make not yellowing of microcellular polyurethane foam plastics.
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.
Isophorone diisocyanate IPDI for short, is a composite propellant polyurethane adhesive is required for hydroxyl prepolymer (i.e., polypropylene glycol) crosslinking agent. In the plastic, adhesives, has been widely applied in industries such as medicine and spices.
As aliphatic yellowing isocyanate and hydroxyl and amine compounds containing active hydrogen reaction, but the reactivity is lower than aromatic isocyanate. Made by acetone after cyclization isophorone, after gasification reaction was nitrile, ammoniation and light. Mainly used for the preparation of no yellowing polyurethane coatings and elastomers.
Isophorone diisocyanate IPDI industrial products including cis isomer and trans-isomer 25%, 75% for the same yellow aliphatic isocyanate, activity less than aromatic isocyanate, vapour pressure is low. Isophorone diisocyanate IPDI has excellent polyurethane adhesives made of optical stability, resistance and chemical resistance, commonly used in the manufacture of high-grade polyurethane adhesive glue agent. Polyurethane adhesive composite propellant need is hydroxyl prepolymer (i.e., polypropylene glycol) crosslinking agent.
Operation note: airtight operation, to provide adequate local exhaust. To prevent the steam leakage in the air of workplace. Operators must receive special training, strictly abide by the operation procedures. Suggest operators wear self-priming filter type gas mask (full-face), wear fabric gas-protection clothing, wear rubber gloves. Away from fire and heat source, the workplace smoking is strictly prohibited.
Use explosion-proof ventilation systems and equipment. In front of the clear liquid and vapor can't welding, cutting and other operations. Avoid to produce smoke. To avoid oxidant, alkali, alcohol, amine contact. Pay particular attention to avoid contact with water. Equipped with corresponding varieties and number of fire equipment and spill contingency processing equipment. Empty containers may remain inside.
Storage precautions: store in a cool, dry, well ventilated warehouse. Away from fire and heat source. Prevent direct sunlight. Keep container sealed, it is strictly prohibited contact with air. Should be with oxidant, alkali kind stored apart, alcohols, amines, mixed reservoir of avoid by all means. Equipped with corresponding varieties and number of fire equipment. Storage area should be equipped with emergency treatment equipment and suitable for material.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
IPDI shrinkage urea diketone and closed isocyanate than the most obvious advantage is no by-products left during crosslinking system. So from a technical point of view to BF1540 crosslinking polyurethane TGIC powder coating is the best alternative.
However, although BF1540 commercial time has been more than 15 years, but not to create a satisfactory fixed market. This can be attributed to the reactivity of BF1540 (too low and poor solvent resistance and chemical resistance (because of its functionality (2), etc.
Isophorone diisocyanate IPDI is colorless or light yellow liquid, with camphor smell, and esters, ketones, ethers, aromatics and fatty hydrocarbon organic solvent such as complete miscibility.
IPDI is aliphatic isocyanate, isophorone diisocyanate IPDI is also a kind of alicyclic isocyanate, isophorone diisocyanate IPDI reactivity is lower than aromatic isocyanate, vapour pressure is low. Isophorone diisocyanate IPDI molecules in two different reactivity, NCO groups, because "NCO IPDI molecules in cyclohexane ring and a - instead of methyl steric effect, makes even in cyclohexane para reactivity of NCO group was 1.3 2.5 times higher than" NCO; IPDI and speed than the HDI of hydroxyl groups and hydroxyl 4 to 5 times faster reaction speed.
Isophorone diisocyanate IPDI made of polyurethane resin with excellent light stability and resistance to chemicals, isophorone diisocyanate IPDI commonly used in the manufacture of high-grade polyurethane resin, such as polyurethane coating corrosion resistance, abrasion resistance hydrolysis resistance of polyurethane elastomer, isophorone diisocyanate IPDI also can be used to make not yellowing of microcellular polyurethane foam plastics.
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.
Isophorone diisocyanate IPDI for short, is a composite propellant polyurethane adhesive is required for hydroxyl prepolymer (i.e., polypropylene glycol) crosslinking agent. In the plastic, adhesives, has been widely applied in industries such as medicine and spices.
As aliphatic yellowing isocyanate and hydroxyl and amine compounds containing active hydrogen reaction, but the reactivity is lower than aromatic isocyanate. Made by acetone after cyclization isophorone, after gasification reaction was nitrile, ammoniation and light. Mainly used for the preparation of no yellowing polyurethane coatings and elastomers.
Isophorone diisocyanate IPDI industrial products including cis isomer and trans-isomer 25%, 75% for the same yellow aliphatic isocyanate, activity less than aromatic isocyanate, vapour pressure is low. Isophorone diisocyanate IPDI has excellent polyurethane adhesives made of optical stability, resistance and chemical resistance, commonly used in the manufacture of high-grade polyurethane adhesive glue agent. Polyurethane adhesive composite propellant need is hydroxyl prepolymer (i.e., polypropylene glycol) crosslinking agent.
Operation note: airtight operation, to provide adequate local exhaust. To prevent the steam leakage in the air of workplace. Operators must receive special training, strictly abide by the operation procedures. Suggest operators wear self-priming filter type gas mask (full-face), wear fabric gas-protection clothing, wear rubber gloves. Away from fire and heat source, the workplace smoking is strictly prohibited.
Use explosion-proof ventilation systems and equipment. In front of the clear liquid and vapor can't welding, cutting and other operations. Avoid to produce smoke. To avoid oxidant, alkali, alcohol, amine contact. Pay particular attention to avoid contact with water. Equipped with corresponding varieties and number of fire equipment and spill contingency processing equipment. Empty containers may remain inside.
Storage precautions: store in a cool, dry, well ventilated warehouse. Away from fire and heat source. Prevent direct sunlight. Keep container sealed, it is strictly prohibited contact with air. Should be with oxidant, alkali kind stored apart, alcohols, amines, mixed reservoir of avoid by all means. Equipped with corresponding varieties and number of fire equipment. Storage area should be equipped with emergency treatment equipment and suitable for material.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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