News Details
TDI derivatives coating crosslinking agent
2017-4-16 17:46:45
TDI derivatives coating crosslinking agent,Toluene diisocyanate is the cheapest on the market and effective diisocyanate.
The TDI has price advantages and is suitable for preparation of closing oligomer with specific structure, but its application in the field of powder coating is very limited, because it is sensitive to uv light and seriously turn yellow. For indoor use powder coating, the coating of whiteness requirement is not high product, can use the TDI closed derivatives as crosslinking agent.
There are 2, 4 - toluene diisocyanate and 2, 6 - toluene diisocyanate (TDI) of two isomers. According to two different isomer content, industry there are three kinds of specifications of the products: (1) the TDI - 65 containing 2, 4 - TDI65 %, 2, 6 - TDI35 %; (2) containing 2, 4 - TDI80 TDI - 80 %, 2, 6 - TDI20 %, the most common; (3) containing 2, 4 - TDI100 TDI - 100 %. Carbon dioxide and water. Easy and containing active hydrogen compounds. And dibasic alcohol and into linear polyurethane and polyurethane resin.
Toluene diisocyanate (TDI) has two isomers: 2, 4 - toluene diisocyanate and 2, 6 - toluene diisocyanate. Toluene diisocyanate is white or light yellow liquid water, has strong excitant odour, have accumulated in the body and latent, has strong stimulation to the skin, eyes and respiratory tract, inhalation of high concentrations of toluene diisocyanate steam will bronchitis, bronchial pneumonia and pulmonary edema. Liquid in contact with the skin can cause dermatitis.
Liquid in contact with the eyes can cause severe stimulation, if left untreated, can lead to permanent damage. Long-term exposure to toluene diisocyanate can cause chronic bronchitis. Allergic to toluene diisocyanate, may cause asthma, breathing difficulties associated with asthma, and cough.
With ether, diethylene glycol, acetone, carbon tetrachloride, benzene, chlorobenzene, kerosene, olive oil miscibility. With compounds containing hydroxyl, water, amine and react with active hydrogen compounds to produce the carbamate, urea and semicarbazide.
Get 2, 4 - toluene nitration with mixed acid and 2, 6 - dinitrotoluene, then in the presence of nickel catalyst hydrogenation reduction for 2, 4 - and 2, 6-2 amino toluene, then in chlorobenzene solution reaction with phosgene.
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
Mainly used as raw material, the production of polyurethane resin used in the production of polyvinyl chloride resin foam with plastics, coating, rubber, adhesives, sealants, etc. Protein also can be used as a rubber vulcanizing agent, crosslinking agent, etc. Including the foam; Polyurethane coating; Polyurethane rubber; There are also some applications such as polyimide fiber and adhesive.
English alias: 4 - Methyl - m - phenylene diisocyanate. TDI. Toluene 2, 4 - diisocyanate; Tolyelenediisocyanate; CRESORCINOL DIISOCYANATE. 2, 4 - TDI; 2, 4 - TOLUENEDIISOCYANATE; 2, 4 - Tolylene diisocyanate. 2, 4 - DIISOCYANATOTOLUENE; 1 - METHYL - 1, 3 - PHENYLENE DIISOCYANATE. 4 - METHYL - 1, 3 - PHENYLENE DIISOCYANATE
Toluene diisocyanate as colorless transparent to light yellow liquid, stimulating odour. With light color darker. Relative density 1.22 + / - 0.01 (25 ℃). Freezing point 3.5 ~ 5.5 ℃ (TDI - 65); 11.5 ~ 13.5 ℃ (TDI - 80); 19.5 ~ 21.5 ℃. The boiling point of 251 ℃. (closed cup flash point 132 ℃). Vapor density of 6.0. The vapor pressure of 0.13 kPa (0.01 mmHg20 ℃). Vapor and air mixture flammable limit of 0.9 ~ 9.5%. Insoluble in water; Soluble in acetone, ethyl acetate, toluene and so on.
Easily with compounds containing active hydrogen atoms, amine, water, alcohol, acid, alkali, especially the reaction with sodium hydroxide and tertiary amine is hard to control, and release a lot of heat. React with water to generate carbon dioxide is one of the key reaction in the process of polyurethane foam plastics manufacturing; Should avoid to be affected with damp be affected with damp.
Polymerization at room temperature is slow, but heating to 45 ℃ above or the presence of catalyst and the can generate dimer. Can react with strong oxidizer. When it is heated, open flames, sparks can catch fire. Heat decomposition release cyanide and nitrogen oxides.
Refractive index from 5654 to 1.5666, the vapor pressure of 2.8 3.3 Pa Pa (20 ℃) j and boiling point (25 ℃)), 106-107 ℃, 120 ℃ (0.67 kPa) (1.3 kPa) and 1311 c. (2) lkPa).
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
The TDI has price advantages and is suitable for preparation of closing oligomer with specific structure, but its application in the field of powder coating is very limited, because it is sensitive to uv light and seriously turn yellow. For indoor use powder coating, the coating of whiteness requirement is not high product, can use the TDI closed derivatives as crosslinking agent.
There are 2, 4 - toluene diisocyanate and 2, 6 - toluene diisocyanate (TDI) of two isomers. According to two different isomer content, industry there are three kinds of specifications of the products: (1) the TDI - 65 containing 2, 4 - TDI65 %, 2, 6 - TDI35 %; (2) containing 2, 4 - TDI80 TDI - 80 %, 2, 6 - TDI20 %, the most common; (3) containing 2, 4 - TDI100 TDI - 100 %. Carbon dioxide and water. Easy and containing active hydrogen compounds. And dibasic alcohol and into linear polyurethane and polyurethane resin.
Toluene diisocyanate (TDI) has two isomers: 2, 4 - toluene diisocyanate and 2, 6 - toluene diisocyanate. Toluene diisocyanate is white or light yellow liquid water, has strong excitant odour, have accumulated in the body and latent, has strong stimulation to the skin, eyes and respiratory tract, inhalation of high concentrations of toluene diisocyanate steam will bronchitis, bronchial pneumonia and pulmonary edema. Liquid in contact with the skin can cause dermatitis.
Liquid in contact with the eyes can cause severe stimulation, if left untreated, can lead to permanent damage. Long-term exposure to toluene diisocyanate can cause chronic bronchitis. Allergic to toluene diisocyanate, may cause asthma, breathing difficulties associated with asthma, and cough.
With ether, diethylene glycol, acetone, carbon tetrachloride, benzene, chlorobenzene, kerosene, olive oil miscibility. With compounds containing hydroxyl, water, amine and react with active hydrogen compounds to produce the carbamate, urea and semicarbazide.
Get 2, 4 - toluene nitration with mixed acid and 2, 6 - dinitrotoluene, then in the presence of nickel catalyst hydrogenation reduction for 2, 4 - and 2, 6-2 amino toluene, then in chlorobenzene solution reaction with phosgene.
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
Mainly used as raw material, the production of polyurethane resin used in the production of polyvinyl chloride resin foam with plastics, coating, rubber, adhesives, sealants, etc. Protein also can be used as a rubber vulcanizing agent, crosslinking agent, etc. Including the foam; Polyurethane coating; Polyurethane rubber; There are also some applications such as polyimide fiber and adhesive.
English alias: 4 - Methyl - m - phenylene diisocyanate. TDI. Toluene 2, 4 - diisocyanate; Tolyelenediisocyanate; CRESORCINOL DIISOCYANATE. 2, 4 - TDI; 2, 4 - TOLUENEDIISOCYANATE; 2, 4 - Tolylene diisocyanate. 2, 4 - DIISOCYANATOTOLUENE; 1 - METHYL - 1, 3 - PHENYLENE DIISOCYANATE. 4 - METHYL - 1, 3 - PHENYLENE DIISOCYANATE
Toluene diisocyanate as colorless transparent to light yellow liquid, stimulating odour. With light color darker. Relative density 1.22 + / - 0.01 (25 ℃). Freezing point 3.5 ~ 5.5 ℃ (TDI - 65); 11.5 ~ 13.5 ℃ (TDI - 80); 19.5 ~ 21.5 ℃. The boiling point of 251 ℃. (closed cup flash point 132 ℃). Vapor density of 6.0. The vapor pressure of 0.13 kPa (0.01 mmHg20 ℃). Vapor and air mixture flammable limit of 0.9 ~ 9.5%. Insoluble in water; Soluble in acetone, ethyl acetate, toluene and so on.
Easily with compounds containing active hydrogen atoms, amine, water, alcohol, acid, alkali, especially the reaction with sodium hydroxide and tertiary amine is hard to control, and release a lot of heat. React with water to generate carbon dioxide is one of the key reaction in the process of polyurethane foam plastics manufacturing; Should avoid to be affected with damp be affected with damp.
Polymerization at room temperature is slow, but heating to 45 ℃ above or the presence of catalyst and the can generate dimer. Can react with strong oxidizer. When it is heated, open flames, sparks can catch fire. Heat decomposition release cyanide and nitrogen oxides.
Refractive index from 5654 to 1.5666, the vapor pressure of 2.8 3.3 Pa Pa (20 ℃) j and boiling point (25 ℃)), 106-107 ℃, 120 ℃ (0.67 kPa) (1.3 kPa) and 1311 c. (2) lkPa).
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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