News Details
Polymer material antioxidants
2018-1-9 17:35:51
Polymer material antioxidants
Polymer materials are usually processed and applied in high temperature conditions, so it is necessary to have good thermal stability for the antioxidant of polymer materials. Because of the high molecular compound with low volatile, high extraction, especially the advantages of a high temperature resistant, so by increasing the relative molecular mass of the polymer antioxidants to improve the thermal stability of the method is recently a new trend of the antioxidants research.
But not relative molecular mass is bigger, the better, because of oxidation occurs mainly in the surface of the products, when the antioxidants in polymer material surface is consumed, the inside of the products whether antioxidants can migrate to the surface in time become the key to effective, so the antioxidant relative molecular mass is usually below 1, 500.
The anti-oxidant 1010 of high relative molecular weight has a significant improvement on the resistance to hydrolysis, mobility and extraction of the antioxidant 1076. The antioxidant GA 1 80, such as Sasaki, is an antioxidant with relatively complex structure and relatively high molecular weight. It has the advantages of good anti-oxygen effect, strong hydrolysis resistance and low volatility.
Polymer materials are high molecular weight (usually up to 10 ~ 106) compounds that are repeatedly connected by covalent bonds of many identical, simple structural units. For example, polyvinyl chloride molecules are repeatedly connected by a number of molecular structural units called CH2CHCl - and thus "CH2CHCl" - also known as structural units or chain segments. A compound consisting of small molecules that form a structural unit is called monomers, and is the raw material for synthetic polymers.
Antioxidant 1010 chemical called: four [beta - (3, 5-2 tertiary butyl - 4 - hydroxy phenyl)] propionate pentaerythritol ester, is white crystalline powder, stable chemical properties, can be widely used in general plastics, engineering plastics, synthetic rubber, fiber, hot melt adhesive, resin, oil, ink, paint and other industries.
Antioxidant 1010 is a phenolic antioxidant, which is one of the best anti-oxidants. Antioxidant 1010 has excellent antioxidant properties for polypropylene and polyethylene. It can effectively prolong the life of the product.
Anti-oxidant 1010 volatile, good resistance to extraction, high thermal stability, long lasting effect, no stain, no pollution, no toxicity. Antioxidant 1010 and antioxidant DLTP, 168 and have synergistic effect. Antioxidant 1010 is a high molecular weight hindered phenol antioxidant with low volatility and is not easy to transfer and is resistant to extraction.
Triphenyl phosphite (antioxidant, stabilizer TPPi) production process
1. Phosphorus oxychloride as the direct method (also called thermal method) phenol with pyridine and anhydrous benzene as solvent, in no more than 10 ℃ temperature, slowly add oxygen phosphorus chloride, then under reflux temperature, the reaction of 3 ~ 4 h. After cooling to room temperature, the reactants are washed by water to recycle pyridine. After centrifugal dehydration, the reagents are dehydrated with dried sodium sulfate, which is filtered to remove sodium sulfate. The first atmospheric distillation recovery of benzene, vacuum distillation, collected 243 ~ 245 ℃ (1.47 kPa) fraction, by cooling, crystallization, crushing is the finished product.
2. After phenol melting, stirring under add phosphorus trichloride under 25 ℃, Triphenyl phosphite is generated; Then heat up to 70 ℃ ventilation with chlorine gas, generated two chlorinated triphenyl phosphate; Again at 50 ℃ water hydrolysis, triphenyl phosphate. The hydrolysate with 5% soda solution for neutralization, water washing, the evaporation and vacuum distillation, collected 243 ~ 245 ℃ (1.47 kPa) fractions, cooling, crystallization, crushing, packaging is the finished product.
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 can effectively prevent the thermal oxidation degradation of polymer materials in the long aging process, is also a kind of efficient processing stabilizing agent, can improve polymer materials under the condition of high temperature processing of discoloration resistance.
Antioxidant 1010 in the polyurethane area, it can be used in RIM materials, spandex, TPU, adhesives and sealants. It is widely used in olefin resins, such as polyethylene, polypropylene, polyurethane, polyformaldehyde, ABS resin, polyvinyl alcohol, synthetic rubber and petroleum products, the general usage is 0.1% ~ 0.5%.
By pentaerythritol and beta - (3, 5-2 tertiary butyl - 4 - hydroxy phenyl) propionic acid methyl ester, under the catalysis of sodium methoxide, was conducted in the 100-140 ℃ ester exchange reaction, that is to get this product. It can also be used as catalyst for dimer pentaerythritol and potassium tert-butyl alcohol, DMF as solvent, as well as the preparation of raw materials, with a yield of 95.8%.
It is widely used in general plastics, engineering plastics, synthetic rubber, fiber, hot melt adhesive, resin, oil, ink, paint and other industries.
The antioxidant 1010, a polyphenolic antioxidant, has good compatibility with most polymers. Changchun anti - oxygen agent 1010 in Taiwan has good protection against light and heat caused by discoloration. Widely used in PE, PP, PS, polyamide, polyformaldehyde, ABS resin, PVC, synthetic rubber and other polymer materials. It is also used to prevent the aging of heat and oxygen in oils and coatings.
Anti-oxidant 1076, beta - (3, 5-bis - butyl - 4-hydroxyphenyl) propionic acid is 18 carbonyl alcohol ester. Anti-oxidant 1076 no pollution, good heat resistance and water resistance, soluble in benzene, acetone, cyclohexane, etc., slightly soluble in methanol, insoluble in water. This product is basically non-toxic.
Routine detection: appearance: white powder or particle; Melting point: 50 to 55 ℃; Ash content < 0.10%; Volatile < 0.50%; Transmittance: 425nm is greater than 96%; 500nm is more than 98%; The content is more than 98%.
Use: this product of antioxidant 1076 in polyethylene, polypropylene, pom, ABS resin, polystyrene, polyvinyl alcohol, engineering plastics, synthetic rubber and petroleum products, the general dosage is 0.1% ~ 0.5%.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Polymer materials are usually processed and applied in high temperature conditions, so it is necessary to have good thermal stability for the antioxidant of polymer materials. Because of the high molecular compound with low volatile, high extraction, especially the advantages of a high temperature resistant, so by increasing the relative molecular mass of the polymer antioxidants to improve the thermal stability of the method is recently a new trend of the antioxidants research.
But not relative molecular mass is bigger, the better, because of oxidation occurs mainly in the surface of the products, when the antioxidants in polymer material surface is consumed, the inside of the products whether antioxidants can migrate to the surface in time become the key to effective, so the antioxidant relative molecular mass is usually below 1, 500.
The anti-oxidant 1010 of high relative molecular weight has a significant improvement on the resistance to hydrolysis, mobility and extraction of the antioxidant 1076. The antioxidant GA 1 80, such as Sasaki, is an antioxidant with relatively complex structure and relatively high molecular weight. It has the advantages of good anti-oxygen effect, strong hydrolysis resistance and low volatility.
Polymer materials are high molecular weight (usually up to 10 ~ 106) compounds that are repeatedly connected by covalent bonds of many identical, simple structural units. For example, polyvinyl chloride molecules are repeatedly connected by a number of molecular structural units called CH2CHCl - and thus "CH2CHCl" - also known as structural units or chain segments. A compound consisting of small molecules that form a structural unit is called monomers, and is the raw material for synthetic polymers.
Antioxidant 1010 chemical called: four [beta - (3, 5-2 tertiary butyl - 4 - hydroxy phenyl)] propionate pentaerythritol ester, is white crystalline powder, stable chemical properties, can be widely used in general plastics, engineering plastics, synthetic rubber, fiber, hot melt adhesive, resin, oil, ink, paint and other industries.
Antioxidant 1010 is a phenolic antioxidant, which is one of the best anti-oxidants. Antioxidant 1010 has excellent antioxidant properties for polypropylene and polyethylene. It can effectively prolong the life of the product.
Anti-oxidant 1010 volatile, good resistance to extraction, high thermal stability, long lasting effect, no stain, no pollution, no toxicity. Antioxidant 1010 and antioxidant DLTP, 168 and have synergistic effect. Antioxidant 1010 is a high molecular weight hindered phenol antioxidant with low volatility and is not easy to transfer and is resistant to extraction.
Triphenyl phosphite (antioxidant, stabilizer TPPi) production process
1. Phosphorus oxychloride as the direct method (also called thermal method) phenol with pyridine and anhydrous benzene as solvent, in no more than 10 ℃ temperature, slowly add oxygen phosphorus chloride, then under reflux temperature, the reaction of 3 ~ 4 h. After cooling to room temperature, the reactants are washed by water to recycle pyridine. After centrifugal dehydration, the reagents are dehydrated with dried sodium sulfate, which is filtered to remove sodium sulfate. The first atmospheric distillation recovery of benzene, vacuum distillation, collected 243 ~ 245 ℃ (1.47 kPa) fraction, by cooling, crystallization, crushing is the finished product.
2. After phenol melting, stirring under add phosphorus trichloride under 25 ℃, Triphenyl phosphite is generated; Then heat up to 70 ℃ ventilation with chlorine gas, generated two chlorinated triphenyl phosphate; Again at 50 ℃ water hydrolysis, triphenyl phosphate. The hydrolysate with 5% soda solution for neutralization, water washing, the evaporation and vacuum distillation, collected 243 ~ 245 ℃ (1.47 kPa) fractions, cooling, crystallization, crushing, packaging is the finished product.
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 can effectively prevent the thermal oxidation degradation of polymer materials in the long aging process, is also a kind of efficient processing stabilizing agent, can improve polymer materials under the condition of high temperature processing of discoloration resistance.
Antioxidant 1010 in the polyurethane area, it can be used in RIM materials, spandex, TPU, adhesives and sealants. It is widely used in olefin resins, such as polyethylene, polypropylene, polyurethane, polyformaldehyde, ABS resin, polyvinyl alcohol, synthetic rubber and petroleum products, the general usage is 0.1% ~ 0.5%.
By pentaerythritol and beta - (3, 5-2 tertiary butyl - 4 - hydroxy phenyl) propionic acid methyl ester, under the catalysis of sodium methoxide, was conducted in the 100-140 ℃ ester exchange reaction, that is to get this product. It can also be used as catalyst for dimer pentaerythritol and potassium tert-butyl alcohol, DMF as solvent, as well as the preparation of raw materials, with a yield of 95.8%.
It is widely used in general plastics, engineering plastics, synthetic rubber, fiber, hot melt adhesive, resin, oil, ink, paint and other industries.
The antioxidant 1010, a polyphenolic antioxidant, has good compatibility with most polymers. Changchun anti - oxygen agent 1010 in Taiwan has good protection against light and heat caused by discoloration. Widely used in PE, PP, PS, polyamide, polyformaldehyde, ABS resin, PVC, synthetic rubber and other polymer materials. It is also used to prevent the aging of heat and oxygen in oils and coatings.
Anti-oxidant 1076, beta - (3, 5-bis - butyl - 4-hydroxyphenyl) propionic acid is 18 carbonyl alcohol ester. Anti-oxidant 1076 no pollution, good heat resistance and water resistance, soluble in benzene, acetone, cyclohexane, etc., slightly soluble in methanol, insoluble in water. This product is basically non-toxic.
Routine detection: appearance: white powder or particle; Melting point: 50 to 55 ℃; Ash content < 0.10%; Volatile < 0.50%; Transmittance: 425nm is greater than 96%; 500nm is more than 98%; The content is more than 98%.
Use: this product of antioxidant 1076 in polyethylene, polypropylene, pom, ABS resin, polystyrene, polyvinyl alcohol, engineering plastics, synthetic rubber and petroleum products, the general dosage is 0.1% ~ 0.5%.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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