News Details
About phenolic antioxidants
2018-1-5 16:15:21
About phenolic antioxidants
Phenolic antioxidants are a variety of oxygen - resistant punishment. Phenolic antioxidants can stop or inhibit chain reaction and chain growth reaction by capturing the peroxy radical, thus terminating the free radical chain reaction. The purpose of preventing oxidation is to be achieved. Phenolic antioxidants are hydroquinone, thiobisphenol, three phenol and so on.
The antioxidant mechanism of chain termination agent is the main antioxidant system, called antioxidants, antioxidant, polypropylene is the phenolic, according to the structure can be divided into single phenol, bisphenol A, three phenols, polyphenols, hydroquinone, thiobisphenol and other types of phenols is mainly in the resistance of phenolic structures. Due to phenolic hydroxyl group ortho para tert butyl electron repelling effect, and significantly enhanced, easy to provide active H atom combined with free radicals, free radical species of phenol itself is formed with low activity and high stability.
Phenol radicals through a series of changes after a combination of ROO? Generation of free radicals, quinone peroxide, its poor thermal stability; or self assemble into p-benzoquinone type peroxides, showing the color, usually yellow, the color pollution in polypropylene products, so the phenol has some limitations in application.
Common varieties of phenolic antioxidants have antioxidant 1010, antioxidant 1076 and CA; as the basic varieties of phenolic antioxidant 2, 6- di Ding Jifen (BHT), because of low molecular weight, volatile, and yellow discoloration and other shortcomings, the amount is reduced year by year. The consumption ratio of high molecular weight blocked phenol, represented by 1010 and 1076, is increasing year by year, and it has become the leading product in the market of phenolic antioxidants.
With the development of science and technology, many non symmetrical hindered phenolic antioxidants are constantly developing and production, compared with the traditional products showed more excellent thermal stability and resistance to discoloration, represents the trend of the world in the field of polymer oxidation, a novel antioxidant with the structure of Cyanoxl1790, Irganox245, SumilizerGA/MarkAO-80 etc..
In addition, in order to meet the requirements of recycled plastics and engineering plastics processing, high molecular weight and efficient antioxidants will become one of the mainstream of future development, such as Topanol205, AntioxidantHPM-12 and Irganox1425.
The varieties of polymerized and reactive hindered phenolic antioxidants are also very active, and Silanox is the latest polymerized phenolic antioxidant. Phenolic antioxidants Anox20, mainly used for polyolefin and styrenic polymers, has excellent antioxidant ability; with reactive functional groups of hydrazine Luchemao-R300 products, the processing conditions directly bonded to the polymer backbone, keep the anti oxygen stable lasting effect, as the effectiveness of the current best reaction type hindered phenolic antioxidant.
Triphenyl phosphite (antioxidant, stabilizer TPPi)
Packing method: net weight of 200KG/galvanized iron bucket (a small cabinet to hold 16 tons), 1000KG/IB (a small container with 18 tons) or 23 tons of it.
Port of shipment: Shanghai port
Price quotation validity: 15 days
Warehouse time: within 15 days (customs clearance)
Export rights: our own right to import and export.
Triphenyl phosphite (TPPi antioxidants, stabilizer) is mainly used in PVC, polyethylene, polypropylene, polystyrene, polyester, abs resin, epoxy resin, synthetic rubber antioxidant stabilizer, used in polyvinyl chloride (PVC) products as a chelating agent.
Antioxidant 1010 chemical name: four [beta (3 5-, -4- Di tert butyl hydroxy phenyl)] pentaerythritol ester propionic acid, is a white crystalline powder, stable chemical properties, can be widely used in common plastics, engineering plastics, synthetic rubber, fiber, hot melt adhesive, resin, oil, ink, paint etc..
Antioxidant 1010 is a phenolic antioxidant, and is one of the best antioxidants at present. Antioxidant 1010 has excellent antioxidant properties for polypropylene and polyethylene. It can effectively extend the time limit for the use of products.
The antioxidant 1010 has small volatility, good pumping resistance, high thermal stability, long holding efficiency, no coloring, non pollution and non-toxic. Antioxidant 1010 has synergistic effect with antioxidant DLTP and 168.
Antioxidant 1010 is a high molecular weight hindered phenol antioxidant, which is very volatile and is not easy to migrate, and is resistant to extraction. Antioxidant 1010 can effectively prevent the thermal oxidation degradation of polymer materials in the long term aging process, and is also an efficient processing stabilizer, which can improve the color resistance of polymer materials under high temperature processing conditions.
Antioxidant 1010 in the field of polyurethane, it can be used in RIM materials, spandex, TPU, adhesives and sealants. It is widely used in olefins, such as polyethylene, polypropylene, polyurethane, polyformaldehyde, ABS resin, polyvinyl alcohol, acetaldehyde, synthetic rubber and petroleum products. The general consumption is 0.1% to 0.5%.
By pentaerythritol and beta (3 5-, -4- Di tert butyl hydroxy phenyl) methyl propionate, sodium in methanol, ester exchange reaction at 100-140 Deg. C, to obtain the product. Two polypentaerythritol and potassium tert butyl alcohol are also used as catalysts, DMF is used as solvent, and the reaction is prepared by the reaction. The yield is 95.8%.
Antioxidant 1010 can be widely used in general plastics, engineering plastics, synthetic rubber, fiber, hot melt adhesive, resin, oil, ink, paint and other industries.
Antioxidant 1010, a polyphenolic antioxidant, has a good compatibility with most of the polymers. The antioxidant 1010 of Changchun, Taiwan, has a good effect on preventing the discoloration of light and heat. It is widely used in PE, PP, PS, polyamide, polyoxymethylene, ABS resin, PVC, synthetic rubber and other polymer materials. It is also used to prevent the heat and oxygen aging of oil and paint.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Phenolic antioxidants are a variety of oxygen - resistant punishment. Phenolic antioxidants can stop or inhibit chain reaction and chain growth reaction by capturing the peroxy radical, thus terminating the free radical chain reaction. The purpose of preventing oxidation is to be achieved. Phenolic antioxidants are hydroquinone, thiobisphenol, three phenol and so on.
The antioxidant mechanism of chain termination agent is the main antioxidant system, called antioxidants, antioxidant, polypropylene is the phenolic, according to the structure can be divided into single phenol, bisphenol A, three phenols, polyphenols, hydroquinone, thiobisphenol and other types of phenols is mainly in the resistance of phenolic structures. Due to phenolic hydroxyl group ortho para tert butyl electron repelling effect, and significantly enhanced, easy to provide active H atom combined with free radicals, free radical species of phenol itself is formed with low activity and high stability.
Phenol radicals through a series of changes after a combination of ROO? Generation of free radicals, quinone peroxide, its poor thermal stability; or self assemble into p-benzoquinone type peroxides, showing the color, usually yellow, the color pollution in polypropylene products, so the phenol has some limitations in application.
Common varieties of phenolic antioxidants have antioxidant 1010, antioxidant 1076 and CA; as the basic varieties of phenolic antioxidant 2, 6- di Ding Jifen (BHT), because of low molecular weight, volatile, and yellow discoloration and other shortcomings, the amount is reduced year by year. The consumption ratio of high molecular weight blocked phenol, represented by 1010 and 1076, is increasing year by year, and it has become the leading product in the market of phenolic antioxidants.
With the development of science and technology, many non symmetrical hindered phenolic antioxidants are constantly developing and production, compared with the traditional products showed more excellent thermal stability and resistance to discoloration, represents the trend of the world in the field of polymer oxidation, a novel antioxidant with the structure of Cyanoxl1790, Irganox245, SumilizerGA/MarkAO-80 etc..
In addition, in order to meet the requirements of recycled plastics and engineering plastics processing, high molecular weight and efficient antioxidants will become one of the mainstream of future development, such as Topanol205, AntioxidantHPM-12 and Irganox1425.
The varieties of polymerized and reactive hindered phenolic antioxidants are also very active, and Silanox is the latest polymerized phenolic antioxidant. Phenolic antioxidants Anox20, mainly used for polyolefin and styrenic polymers, has excellent antioxidant ability; with reactive functional groups of hydrazine Luchemao-R300 products, the processing conditions directly bonded to the polymer backbone, keep the anti oxygen stable lasting effect, as the effectiveness of the current best reaction type hindered phenolic antioxidant.
Triphenyl phosphite (antioxidant, stabilizer TPPi)
Packing method: net weight of 200KG/galvanized iron bucket (a small cabinet to hold 16 tons), 1000KG/IB (a small container with 18 tons) or 23 tons of it.
Port of shipment: Shanghai port
Price quotation validity: 15 days
Warehouse time: within 15 days (customs clearance)
Export rights: our own right to import and export.
Triphenyl phosphite (TPPi antioxidants, stabilizer) is mainly used in PVC, polyethylene, polypropylene, polystyrene, polyester, abs resin, epoxy resin, synthetic rubber antioxidant stabilizer, used in polyvinyl chloride (PVC) products as a chelating agent.
Antioxidant 1010 chemical name: four [beta (3 5-, -4- Di tert butyl hydroxy phenyl)] pentaerythritol ester propionic acid, is a white crystalline powder, stable chemical properties, can be widely used in common plastics, engineering plastics, synthetic rubber, fiber, hot melt adhesive, resin, oil, ink, paint etc..
Antioxidant 1010 is a phenolic antioxidant, and is one of the best antioxidants at present. Antioxidant 1010 has excellent antioxidant properties for polypropylene and polyethylene. It can effectively extend the time limit for the use of products.
The antioxidant 1010 has small volatility, good pumping resistance, high thermal stability, long holding efficiency, no coloring, non pollution and non-toxic. Antioxidant 1010 has synergistic effect with antioxidant DLTP and 168.
Antioxidant 1010 is a high molecular weight hindered phenol antioxidant, which is very volatile and is not easy to migrate, and is resistant to extraction. Antioxidant 1010 can effectively prevent the thermal oxidation degradation of polymer materials in the long term aging process, and is also an efficient processing stabilizer, which can improve the color resistance of polymer materials under high temperature processing conditions.
Antioxidant 1010 in the field of polyurethane, it can be used in RIM materials, spandex, TPU, adhesives and sealants. It is widely used in olefins, such as polyethylene, polypropylene, polyurethane, polyformaldehyde, ABS resin, polyvinyl alcohol, acetaldehyde, synthetic rubber and petroleum products. The general consumption is 0.1% to 0.5%.
By pentaerythritol and beta (3 5-, -4- Di tert butyl hydroxy phenyl) methyl propionate, sodium in methanol, ester exchange reaction at 100-140 Deg. C, to obtain the product. Two polypentaerythritol and potassium tert butyl alcohol are also used as catalysts, DMF is used as solvent, and the reaction is prepared by the reaction. The yield is 95.8%.
Antioxidant 1010 can be widely used in general plastics, engineering plastics, synthetic rubber, fiber, hot melt adhesive, resin, oil, ink, paint and other industries.
Antioxidant 1010, a polyphenolic antioxidant, has a good compatibility with most of the polymers. The antioxidant 1010 of Changchun, Taiwan, has a good effect on preventing the discoloration of light and heat. It is widely used in PE, PP, PS, polyamide, polyoxymethylene, ABS resin, PVC, synthetic rubber and other polymer materials. It is also used to prevent the heat and oxygen aging of oil and paint.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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