News Details
High efficiency compound antioxidant
2018-1-1 11:45:41
High efficiency compound antioxidant
Study on the application of the results now show that there is a synergistic effect between different antioxidants, prominent characteristics of composite system have synergistic effects by the main antioxidant and the auxiliary antioxidant composition has the advantages of high efficiency, stable and economical, is to prevent the polymer thermal oxidative aging system is the most effective.
Therefore, in practical application, more than two or more than two kinds of main and auxiliary antioxidants complex antioxidant. The efficient compound antioxidant has been one of the main trends in the development of plastics additives industry. The efficient compound antioxidant is a complex of hindered phenol and phosphite and thioester, and hindered phenolic antioxidant and ultraviolet absorber compound product.
The compound product has short development period, good effect, good comprehensive performance and synergistic effect of various auxiliaries, so it is convenient for users to use. A representative of the varieties IrganoxB, IrganoxLC, IrganoxLM, IrganoxHP, IrganoxXP, Ultranox815A, 817A, 875A, 877A, and recycled plastic special composite antioxidant varieties Recyclestab411 and 811; composite antioxidant Naugard900 series products, allegedly the product with low volatile and non precipitation; antioxidant CyanoxXS4 containing hindered phenol and composite system phosphite, used in polyolefin processing, to enhance the stability and long-term stability.
It is particularly worth mentioning that in recent years a new antioxidant, carbon free radical catcher, is gradually coming into the field of vision, and its typical representative is HP136. As a carbon free radical capture agent, HP136 has a completely different antioxidant mechanism from traditional antioxidants. It can capture free radicals centered on carbon and inhibit the oxidative degradation process of PP in the bud stage, thereby playing an effective role in anti oxygen.
The 1010/168/HP136 three element system combined with HP136 and traditional antioxidants can improve the processability, oxidation resistance and optical performance of the material more effectively. Because of its less consumption compared with traditional products such as B215, the ash content of products can be reduced. It can be predicted that the three - element compound antioxidant containing HP136 and its similar products will be more and more used in the polypropylene process.
Antioxidants can inhibit or delay the oxidative degradation of plastic or rubber and prolong the service life. Antioxidant can prevent the increase of acid value or viscosity of lubricating oil and fuel oil.
Antioxidants are synthetic rubber (SBR, Ding Jing, PU, Shun d), polyethylene, PVC stabilizer, antioxidant phenolic antioxidant is commonly used in rubber, antioxidant of natural rubber, butadiene, styrene, isoprene, Ding Ji, Ding Jing, such as ethylene propylene synthetic rubber, acrylic latex products and hot oxygen aging protection effect.
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.
Cas no. : 101-02-0
HS: 29209019.00
The most important index of products: colorless, yellow liquid
Density (rho) 2525:1.183-1.192, refractive index (eta 020) : 1.585 1.590, freezing point ° C: 19-24, chloride (Cl - %) : 0.20 or less
Tax refund: the current tax refund of Triphenyl phosphite is 9 percent
Raw materials: phenol, phosphorus trichloride, phosphorus trichloride.
Antioxidants can inhibit the damage of copper, and anti ozone and wax and various factors can prevent the climate of vulcanizate damage this product in the rubber is easy to disperse and can be directly mixed with rubber antioxidant or as a dispersion into latex, can be used for manufacturing tire side wall, white, colored and transparent color rubber and dairy products and daily necessities, health food, blankets, shoes and rubber, synthetic rubber antioxidants can be used as a postprocessing and storage stabilizer.
There are many ways to evaluate the stability of thermal oxidation of plastics. People like to use a variety of thermal analysis techniques, such as differential thermal analysis (DTA), differential scanning calorimetry (DSC), thermogravimetric analysis (TG) and thermomechanical analysis (TMA). One of the great benefits of these methods is that data can be obtained in a very short time.
Relatively high temperature, but usually under the melting point of polymer, accelerated aging in the oven (using circulating air or sometimes pure oxygen) is one of the most widely applied testing methods (for example, DIN53383 part I, ISO77-1983). Test criteria including spectral data, such as infrared spectroscopy based (DIN53383 second) or radical concentration data, the determination of the leg color and mechanical properties of colorimetric method, such as impact strength, tensile strength and tensile.
Some polymers such as polycarbonate, polyamine changes caused by aging of molecular scale, can be easily detected by measuring the viscosity of the solution (DIN 53727, ISO 307-1977, ASTM D2857-1987). In practice, thermogravimetric analysis is limited in the determination of polyacetal weight loss.
The study of the specific surface area of antioxidants is very important. The results of the BET method are reliable and reliable.
The current domestic and foreign market specific surface area test unified multi point BET method at home and abroad to set out the standard Determination of the specific surface area is BET based testing methods, please refer to the national standard (GB/T 19587-2004) - Determination of solid surface area methods of gas adsorption principle BET.
Antioxidant detection of specific surface area is relatively time consuming work, because the absorption capacity of the sample, somesampletest mayneed a day, if the test did not achieve a fully automated process, the testers can not leave on time, and must be highly concentrated, observe the dashboard, the control knob, a little careful will lead to the failure of the test process, this test will waste a lot of staff time.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Study on the application of the results now show that there is a synergistic effect between different antioxidants, prominent characteristics of composite system have synergistic effects by the main antioxidant and the auxiliary antioxidant composition has the advantages of high efficiency, stable and economical, is to prevent the polymer thermal oxidative aging system is the most effective.
Therefore, in practical application, more than two or more than two kinds of main and auxiliary antioxidants complex antioxidant. The efficient compound antioxidant has been one of the main trends in the development of plastics additives industry. The efficient compound antioxidant is a complex of hindered phenol and phosphite and thioester, and hindered phenolic antioxidant and ultraviolet absorber compound product.
The compound product has short development period, good effect, good comprehensive performance and synergistic effect of various auxiliaries, so it is convenient for users to use. A representative of the varieties IrganoxB, IrganoxLC, IrganoxLM, IrganoxHP, IrganoxXP, Ultranox815A, 817A, 875A, 877A, and recycled plastic special composite antioxidant varieties Recyclestab411 and 811; composite antioxidant Naugard900 series products, allegedly the product with low volatile and non precipitation; antioxidant CyanoxXS4 containing hindered phenol and composite system phosphite, used in polyolefin processing, to enhance the stability and long-term stability.
It is particularly worth mentioning that in recent years a new antioxidant, carbon free radical catcher, is gradually coming into the field of vision, and its typical representative is HP136. As a carbon free radical capture agent, HP136 has a completely different antioxidant mechanism from traditional antioxidants. It can capture free radicals centered on carbon and inhibit the oxidative degradation process of PP in the bud stage, thereby playing an effective role in anti oxygen.
The 1010/168/HP136 three element system combined with HP136 and traditional antioxidants can improve the processability, oxidation resistance and optical performance of the material more effectively. Because of its less consumption compared with traditional products such as B215, the ash content of products can be reduced. It can be predicted that the three - element compound antioxidant containing HP136 and its similar products will be more and more used in the polypropylene process.
Antioxidants can inhibit or delay the oxidative degradation of plastic or rubber and prolong the service life. Antioxidant can prevent the increase of acid value or viscosity of lubricating oil and fuel oil.
Antioxidants are synthetic rubber (SBR, Ding Jing, PU, Shun d), polyethylene, PVC stabilizer, antioxidant phenolic antioxidant is commonly used in rubber, antioxidant of natural rubber, butadiene, styrene, isoprene, Ding Ji, Ding Jing, such as ethylene propylene synthetic rubber, acrylic latex products and hot oxygen aging protection effect.
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.
Cas no. : 101-02-0
HS: 29209019.00
The most important index of products: colorless, yellow liquid
Density (rho) 2525:1.183-1.192, refractive index (eta 020) : 1.585 1.590, freezing point ° C: 19-24, chloride (Cl - %) : 0.20 or less
Tax refund: the current tax refund of Triphenyl phosphite is 9 percent
Raw materials: phenol, phosphorus trichloride, phosphorus trichloride.
Antioxidants can inhibit the damage of copper, and anti ozone and wax and various factors can prevent the climate of vulcanizate damage this product in the rubber is easy to disperse and can be directly mixed with rubber antioxidant or as a dispersion into latex, can be used for manufacturing tire side wall, white, colored and transparent color rubber and dairy products and daily necessities, health food, blankets, shoes and rubber, synthetic rubber antioxidants can be used as a postprocessing and storage stabilizer.
There are many ways to evaluate the stability of thermal oxidation of plastics. People like to use a variety of thermal analysis techniques, such as differential thermal analysis (DTA), differential scanning calorimetry (DSC), thermogravimetric analysis (TG) and thermomechanical analysis (TMA). One of the great benefits of these methods is that data can be obtained in a very short time.
Relatively high temperature, but usually under the melting point of polymer, accelerated aging in the oven (using circulating air or sometimes pure oxygen) is one of the most widely applied testing methods (for example, DIN53383 part I, ISO77-1983). Test criteria including spectral data, such as infrared spectroscopy based (DIN53383 second) or radical concentration data, the determination of the leg color and mechanical properties of colorimetric method, such as impact strength, tensile strength and tensile.
Some polymers such as polycarbonate, polyamine changes caused by aging of molecular scale, can be easily detected by measuring the viscosity of the solution (DIN 53727, ISO 307-1977, ASTM D2857-1987). In practice, thermogravimetric analysis is limited in the determination of polyacetal weight loss.
The study of the specific surface area of antioxidants is very important. The results of the BET method are reliable and reliable.
The current domestic and foreign market specific surface area test unified multi point BET method at home and abroad to set out the standard Determination of the specific surface area is BET based testing methods, please refer to the national standard (GB/T 19587-2004) - Determination of solid surface area methods of gas adsorption principle BET.
Antioxidant detection of specific surface area is relatively time consuming work, because the absorption capacity of the sample, somesampletest mayneed a day, if the test did not achieve a fully automated process, the testers can not leave on time, and must be highly concentrated, observe the dashboard, the control knob, a little careful will lead to the failure of the test process, this test will waste a lot of staff time.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Spanish
French
Italian
Portuguese
Japanese
Korean
Arabic
Russian