News Details
Acrylonitrile derivative plasticizer
2017-12-7 16:06:25
Acrylonitrile derivative plasticizer
Acrylonitrile is a colorless, irritant, odorable liquid that is flammable, and its vapor and air can form an explosive mixture. In the case of clear fire and high heat, it is easy to burn and release toxic gases. It reacts violently with oxidizing agent, strong acid, strong alkali, amines and bromine.
Acrylonitrile is flammable, and its vapor and air can form an explosive mixture. In the case of clear fire and high heat, it is easy to burn and release toxic gases. It reacts violently with oxidizing agent, strong acid, strong alkali, amines and bromine. Under the high temperature of the fire field, polymerization and exothermic can occur to break the container.
Acrylonitrile derivative plasticizer is a polymer material adjuvant. It is also a phthalate ester in environmental estrogens. Acrylonitrile derivatives have various kinds of plasticizers. The most common acrylonitrile derivative plasticizer is two octyl terephthalate (plasticizer DOTP).
The chemical properties are active and can produce double bond addition reactions, and react with the corresponding inorganic or organic compounds containing active hydrogen to produce a series of cyanide ethyl products.
It is easy to polymerize in the case of hypoxia or exposure to visible light, and can be strongly polymerized in the presence of strong alkali. Reacting with reducing agents and releasing toxic gases. The mixture of steam and air is easy to form an explosive mixture, which is strongly reacted with the oxidizing agent. Light, heat and long storage are easy to polymerize, and there is a danger of burning and explosion.
This product is highly toxic, the toxicity to the warm blooded animal is about 1/30 of the hydrogen cyanide. Acrylonitrile is not only poisonous to steam, but also on the skin and can be easily poisoned by skin. The mice were injected with LD5015mg/kg, and the rat LD50 was 93mg/kg. Inhalation of dilute acrylonitrile vapour for a long time can cause nausea, vomiting, headache, tiredness and discomfort. The maximum permissible concentration in the workplace is 45mg/m3. The production equipment should be closed, and the protective equipment should be worn when operating. If the acrylonitrile is splashed on the clothes, it should be immediately removed and flushed with a large amount of water when the skin splashes and the skin is splashed. Splash into the eye, need to use water for more than 15 minutes. When swallowing inadvertently, the stomach is washed with warm water. In case of poisoning, intravenous injection of sodium thiosulfate and sodium nitrite should be used immediately, and the doctor should be treated for diagnosis and treatment.
Acrylonitrile is an important monomer for synthetic fiber, synthetic rubber and synthetic resin. Polyacrylonitrile fiber, that is, acrylic fiber made from acrylonitrile, is very wool like, so it is also called synthetic wool.
Acrylonitrile and butadiene copolymerization can produce NBR, which has good oil resistance, cold resistance, wear resistance and electrical insulation property, and is stable under most chemical solvents, sunlight and heat. ABS resin has been prepared by copolymerization of acrylonitrile with butadiene and styrene, which has the advantages of light quality, cold resistance and good impact resistance.
Physical and chemical properties of two octyl terephthalate (plasticizer DOTP)
Appearance: transparent and colorless liquid
Boiling point: 400 degrees centigrade
Density: 0.984
Melting point: 30-34 degrees centigrade
Flash point: 238 degrees centigrade
Refractive index: 1.489-1.491
Flash point centigrade 210
Water is less than or equal to 0.03
Acid value is less than 0.1 mgKOH/g
The refractive index is greater than or equal to 1.4900 (20 C)
Color = (platinum cobalt) 30
The ester content% (chromatography) more than 99.5
Density (20 C) g/cm3 0.981-0.985
Use of two octyl terephthalate (plasticizer DOTP)
1.DOTP has good electrical and thermal properties. It can be used to replace DOP in the sheath of PVC plastic wire and can also be used in the production of artificial leather membrane. In addition, with excellent compatibility, terephthalic acid ester is two PVC acrylonitrile derivatives plastic plasticizer, plasticizer, plasticizer, polyvinyl butyral nitrile rubber plasticizer, plasticizer for cellulose nitrate. The improvement of the product and plays the role of hardness and deformation, can be used as softener in NBR, chloroprene rubber, EPDM rubber and other products three. Especially for cable material, it has good plasticizing effect and low volatility. It is widely used in various products that require heat resistance and high insulation. It is an ideal plasticizer for producing 70 PVC cable material and other volatile resistant products.
2.DOTP is used for the PVC products in the car, which can solve the fog problem of the glass window. DOTP is also used for high quality lubricants or lubricant additives furniture and interior decoration paint, and precision instruments, nitro varnish additives, paper softener, biaxially oriented polyester amide membrane film, plastic bags and other crafts, plasma storage.
3. because the linear molecular structure of DOTP is similar to DOS and DOA, its cold resistance is also better.
The volume resistivity of 4.DOTP is 10-20 times higher than that of DOP, and its mobility is excellent.
5., because DOTP does not contain o-phthalate two formate, it is not an environmental friendly plasticizer in the range of 16 16 kinds of plasticizers containing o-phthalic acid in the European Union and other countries.
Acrylamide, acrylic acid and its esters can be prepared by the hydrolysis of acrylonitrile. It is an important organic chemical raw materials, acrylonitrile can also electrolytic hydrogenation of adiponitrile was prepared by coupling, adiponitrile hydrogenation can be prepared with nylon 66 material, hexamethylendiamine. It can be used as water resistant agents and adhesives, and is also used in other organic synthesis and pharmaceutical industries, and used as a cereal fumigant. In addition, the product is also a kind of non proton polar solvent, which is used as the raw material of the oil field slurry additive PAC142.
Acrylonitrile is an important monomer for synthetic fiber, synthetic rubber and synthetic resin, and is also an intermediate for insecticide to fill the nitrile.
Cyanoethanol method: ethylene oxide and hydrocyanic acid in water and trimethylamine reactions in the presence of cyanide to ethanol, then using magnesium carbonate as catalyst at 200-280 deg.c for dehydration of acrylonitrile yield of about 75%. The production of high purity acrylonitrile and hydrocyanic acid but high toxicity and high cost.
Acetylene catalytic effect of acetylene and hydrocyanic acid in cuprous chloride - potassium chloride and sodium chloride in dilute hydrochloric acid solution under 80-90 DEG C to the acrylonitrile production process is simple, good yield, up to 97% meter from hydrocyanic acid. But there are many side effects, the product is difficult to be refined and the toxicity is great, and the price of acetylene is higher than that of propylene, and the technology and economy lag behind the propylene ammoxidation. Before 1960, this method was the main method of producing acrylonitrile in the world.
Propylene ammoxidation: propylene, ammonia, air and water are used as raw materials to enter boiling bed or fixed bed reactor at a certain proportion. Under the action of phosphorus, molybdenum, bismuth or antimony iron catalyst supported by silica gel, acrylonitrile is generated at 400-500 degree temperature and atmospheric pressure. Then the neutralization column with dilute sulfuric acid to remove unreacted ammonia, followed by water absorption acrylonitrile absorption tower gas, formation water solution, the aqueous solution by extraction column separation in acetonitrile, and hydrocyanic acid column to remove hydrocyanic acid by dehydration, distillation and acrylonitrile products, the one-way yield up to 75%, the by-products hydrocyanic acid acetonitrile, and ammonium sulfate. This method is the most valuable production method of industrial production.
Acrylonitrile is a kind of important organic synthetic monomers in propylene product series in the second, second only to polypropylene, is three synthetic materials (plastics, rubber, fiber) is an important chemical raw materials, mainly used in the production of polyacrylonitrile (Pan), acrylonitrile butadiene styrene (ABS) and styrene (AS) plastic plastic acrylamide, etc.. Acrylonitrile occupies a prominent position in polymer materials such as synthetic fibers and synthetic resins, and has a wide application prospect. In addition, acrylonitrile and acrylonitrile derivatives are also widely used in building materials and daily necessities.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Acrylonitrile is a colorless, irritant, odorable liquid that is flammable, and its vapor and air can form an explosive mixture. In the case of clear fire and high heat, it is easy to burn and release toxic gases. It reacts violently with oxidizing agent, strong acid, strong alkali, amines and bromine.
Acrylonitrile is flammable, and its vapor and air can form an explosive mixture. In the case of clear fire and high heat, it is easy to burn and release toxic gases. It reacts violently with oxidizing agent, strong acid, strong alkali, amines and bromine. Under the high temperature of the fire field, polymerization and exothermic can occur to break the container.
Acrylonitrile derivative plasticizer is a polymer material adjuvant. It is also a phthalate ester in environmental estrogens. Acrylonitrile derivatives have various kinds of plasticizers. The most common acrylonitrile derivative plasticizer is two octyl terephthalate (plasticizer DOTP).
The chemical properties are active and can produce double bond addition reactions, and react with the corresponding inorganic or organic compounds containing active hydrogen to produce a series of cyanide ethyl products.
It is easy to polymerize in the case of hypoxia or exposure to visible light, and can be strongly polymerized in the presence of strong alkali. Reacting with reducing agents and releasing toxic gases. The mixture of steam and air is easy to form an explosive mixture, which is strongly reacted with the oxidizing agent. Light, heat and long storage are easy to polymerize, and there is a danger of burning and explosion.
This product is highly toxic, the toxicity to the warm blooded animal is about 1/30 of the hydrogen cyanide. Acrylonitrile is not only poisonous to steam, but also on the skin and can be easily poisoned by skin. The mice were injected with LD5015mg/kg, and the rat LD50 was 93mg/kg. Inhalation of dilute acrylonitrile vapour for a long time can cause nausea, vomiting, headache, tiredness and discomfort. The maximum permissible concentration in the workplace is 45mg/m3. The production equipment should be closed, and the protective equipment should be worn when operating. If the acrylonitrile is splashed on the clothes, it should be immediately removed and flushed with a large amount of water when the skin splashes and the skin is splashed. Splash into the eye, need to use water for more than 15 minutes. When swallowing inadvertently, the stomach is washed with warm water. In case of poisoning, intravenous injection of sodium thiosulfate and sodium nitrite should be used immediately, and the doctor should be treated for diagnosis and treatment.
Acrylonitrile is an important monomer for synthetic fiber, synthetic rubber and synthetic resin. Polyacrylonitrile fiber, that is, acrylic fiber made from acrylonitrile, is very wool like, so it is also called synthetic wool.
Acrylonitrile and butadiene copolymerization can produce NBR, which has good oil resistance, cold resistance, wear resistance and electrical insulation property, and is stable under most chemical solvents, sunlight and heat. ABS resin has been prepared by copolymerization of acrylonitrile with butadiene and styrene, which has the advantages of light quality, cold resistance and good impact resistance.
Physical and chemical properties of two octyl terephthalate (plasticizer DOTP)
Appearance: transparent and colorless liquid
Boiling point: 400 degrees centigrade
Density: 0.984
Melting point: 30-34 degrees centigrade
Flash point: 238 degrees centigrade
Refractive index: 1.489-1.491
Flash point centigrade 210
Water is less than or equal to 0.03
Acid value is less than 0.1 mgKOH/g
The refractive index is greater than or equal to 1.4900 (20 C)
Color = (platinum cobalt) 30
The ester content% (chromatography) more than 99.5
Density (20 C) g/cm3 0.981-0.985
Use of two octyl terephthalate (plasticizer DOTP)
1.DOTP has good electrical and thermal properties. It can be used to replace DOP in the sheath of PVC plastic wire and can also be used in the production of artificial leather membrane. In addition, with excellent compatibility, terephthalic acid ester is two PVC acrylonitrile derivatives plastic plasticizer, plasticizer, plasticizer, polyvinyl butyral nitrile rubber plasticizer, plasticizer for cellulose nitrate. The improvement of the product and plays the role of hardness and deformation, can be used as softener in NBR, chloroprene rubber, EPDM rubber and other products three. Especially for cable material, it has good plasticizing effect and low volatility. It is widely used in various products that require heat resistance and high insulation. It is an ideal plasticizer for producing 70 PVC cable material and other volatile resistant products.
2.DOTP is used for the PVC products in the car, which can solve the fog problem of the glass window. DOTP is also used for high quality lubricants or lubricant additives furniture and interior decoration paint, and precision instruments, nitro varnish additives, paper softener, biaxially oriented polyester amide membrane film, plastic bags and other crafts, plasma storage.
3. because the linear molecular structure of DOTP is similar to DOS and DOA, its cold resistance is also better.
The volume resistivity of 4.DOTP is 10-20 times higher than that of DOP, and its mobility is excellent.
5., because DOTP does not contain o-phthalate two formate, it is not an environmental friendly plasticizer in the range of 16 16 kinds of plasticizers containing o-phthalic acid in the European Union and other countries.
Acrylamide, acrylic acid and its esters can be prepared by the hydrolysis of acrylonitrile. It is an important organic chemical raw materials, acrylonitrile can also electrolytic hydrogenation of adiponitrile was prepared by coupling, adiponitrile hydrogenation can be prepared with nylon 66 material, hexamethylendiamine. It can be used as water resistant agents and adhesives, and is also used in other organic synthesis and pharmaceutical industries, and used as a cereal fumigant. In addition, the product is also a kind of non proton polar solvent, which is used as the raw material of the oil field slurry additive PAC142.
Acrylonitrile is an important monomer for synthetic fiber, synthetic rubber and synthetic resin, and is also an intermediate for insecticide to fill the nitrile.
Cyanoethanol method: ethylene oxide and hydrocyanic acid in water and trimethylamine reactions in the presence of cyanide to ethanol, then using magnesium carbonate as catalyst at 200-280 deg.c for dehydration of acrylonitrile yield of about 75%. The production of high purity acrylonitrile and hydrocyanic acid but high toxicity and high cost.
Acetylene catalytic effect of acetylene and hydrocyanic acid in cuprous chloride - potassium chloride and sodium chloride in dilute hydrochloric acid solution under 80-90 DEG C to the acrylonitrile production process is simple, good yield, up to 97% meter from hydrocyanic acid. But there are many side effects, the product is difficult to be refined and the toxicity is great, and the price of acetylene is higher than that of propylene, and the technology and economy lag behind the propylene ammoxidation. Before 1960, this method was the main method of producing acrylonitrile in the world.
Propylene ammoxidation: propylene, ammonia, air and water are used as raw materials to enter boiling bed or fixed bed reactor at a certain proportion. Under the action of phosphorus, molybdenum, bismuth or antimony iron catalyst supported by silica gel, acrylonitrile is generated at 400-500 degree temperature and atmospheric pressure. Then the neutralization column with dilute sulfuric acid to remove unreacted ammonia, followed by water absorption acrylonitrile absorption tower gas, formation water solution, the aqueous solution by extraction column separation in acetonitrile, and hydrocyanic acid column to remove hydrocyanic acid by dehydration, distillation and acrylonitrile products, the one-way yield up to 75%, the by-products hydrocyanic acid acetonitrile, and ammonium sulfate. This method is the most valuable production method of industrial production.
Acrylonitrile is a kind of important organic synthetic monomers in propylene product series in the second, second only to polypropylene, is three synthetic materials (plastics, rubber, fiber) is an important chemical raw materials, mainly used in the production of polyacrylonitrile (Pan), acrylonitrile butadiene styrene (ABS) and styrene (AS) plastic plastic acrylamide, etc.. Acrylonitrile occupies a prominent position in polymer materials such as synthetic fibers and synthetic resins, and has a wide application prospect. In addition, acrylonitrile and acrylonitrile derivatives are also widely used in building materials and daily necessities.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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