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Introduction of antioxidants
by：CSSSLD
2021-01-23
Antioxidants CA is three yuan phenolic antioxidants, melting temperature above 185 ℃.
It has long been used as plastics antioxidants, in PP, PE, PVC, ABS plastic injection products processing has a good stability, dosage is in commonly 0.
02% -
0.
5%.
It and DLTP to 1:1 with, can produce synergies.
Antioxidant 330 is also a kind of ternary phenolic antioxidant, high efficiency, no pollution, low volatile, processing stability, non-toxic, can be used for food packaging products.
The products are widely used in HDPE, PP, PS, POM and synthetic rubber products, the dosage general to 0.
1% -
0.
5%.
at present, phosphite ester has extensive use in the plastics and rubber industry. Generally thought, phosphite ester and peroxide reaction, reduction of alcohol itself was oxidized to phosphate. Metal ions passivator is also known as metal ion chelating agent. It can be like a crab claws to metal ion chelating, so you can stop for the catalytic oxidation of metal ions. In the plastic industry, the application of antioxidant is very common, most of them hindered phenol, amine and auxiliary antioxidants, which mainly hindered phenols.
alkyl polyphenols molecule contains two or more than two of hindered phenol unit, and the relative molecular mass increases, reduce volatile. On the other hand, increased the block of phenol in molecular and the proportion of the whole, improve the antioxidant efficiency, there are many varieties is equal to or slightly higher than some of the amine antioxidants. Antioxidant 2246 is one of the typical varieties, the antioxidants to keep the good antioxidant properties of antioxidant 264, no pollution, at the same time with high relative molecular mass, volatile small, can be used for light color or color products, generally less than 1%.
phenolic antioxidants is found that the earliest and the most widely application field of one type of antioxidant. The earliest trade names appeared in the 1930 s, BHA, butylated hydroxytoluene. So far, antioxidant 264 is still the current production great varieties, and can be used for a variety of plastic materials. Despite its antioxidant ability inferior amine antioxidants, but they don't have excellent discoloration, pollution-free advantages such as less by amine antioxidants. And, more importantly, they are generally low toxic and non-toxic, for human's physical and mental health and environmental protection is very important, therefore phenolic antioxidant has good prospects for development.
most phenolic antioxidants have hindered phenol chemical structure, it consists of alkyl phenol, alkyl polyphenols and sulfur generation of bisphenol a type. Alkyl single phenol molecules within only one unit of hindered phenol. Relative molecular mass is small, so are volatile and take sex, anti-aging ability is weak, can only be used in the products of request is not high. Antioxidant 264 is a typical application of alkyl phenol antioxidant, it is the excellent performance of general-purpose antioxidant.
auxiliary antioxidant role is to produce free radicals can prevent or delay the oxidation process. It mainly includes the peroxide decomposition agent and metal ions passivator two kinds big. Can react with peroxide and generate stable compound material called light oxide decomposition agent, and can passivation metal ion catalytic aging process material called passivator metal ions. At low temperatures, phosphite ester is a kind of very good peroxide decomposition agent.
antioxidant 264 does not change color, no pollution, can be used for PE, PVC, PP, PS, ABS and pet plastic, especially suitable for white or light color plastic products processing and food packaging materials, generally less than 1%. But the low relative molecular mass, volatile, not suitable for in high temperature plastic processing or use. Through to the introduction of other groups in molecules, the best means of increasing the relative molecular mass to improve this defect, antioxidant 1076 is one of them.
more excellent articles: antioxidants, click directly.
http://www。 csssld。 cn//html/2018/Info_0121/722。 HTML
changshu smoothly da plastic products factory website: http://www. csssld。 Cn /
more wonderful articles, immediately search: changshu da plastic products factory smoothly
at present, phosphite ester has extensive use in the plastics and rubber industry. Generally thought, phosphite ester and peroxide reaction, reduction of alcohol itself was oxidized to phosphate. Metal ions passivator is also known as metal ion chelating agent. It can be like a crab claws to metal ion chelating, so you can stop for the catalytic oxidation of metal ions. In the plastic industry, the application of antioxidant is very common, most of them hindered phenol, amine and auxiliary antioxidants, which mainly hindered phenols.
alkyl polyphenols molecule contains two or more than two of hindered phenol unit, and the relative molecular mass increases, reduce volatile. On the other hand, increased the block of phenol in molecular and the proportion of the whole, improve the antioxidant efficiency, there are many varieties is equal to or slightly higher than some of the amine antioxidants. Antioxidant 2246 is one of the typical varieties, the antioxidants to keep the good antioxidant properties of antioxidant 264, no pollution, at the same time with high relative molecular mass, volatile small, can be used for light color or color products, generally less than 1%.
phenolic antioxidants is found that the earliest and the most widely application field of one type of antioxidant. The earliest trade names appeared in the 1930 s, BHA, butylated hydroxytoluene. So far, antioxidant 264 is still the current production great varieties, and can be used for a variety of plastic materials. Despite its antioxidant ability inferior amine antioxidants, but they don't have excellent discoloration, pollution-free advantages such as less by amine antioxidants. And, more importantly, they are generally low toxic and non-toxic, for human's physical and mental health and environmental protection is very important, therefore phenolic antioxidant has good prospects for development.
most phenolic antioxidants have hindered phenol chemical structure, it consists of alkyl phenol, alkyl polyphenols and sulfur generation of bisphenol a type. Alkyl single phenol molecules within only one unit of hindered phenol. Relative molecular mass is small, so are volatile and take sex, anti-aging ability is weak, can only be used in the products of request is not high. Antioxidant 264 is a typical application of alkyl phenol antioxidant, it is the excellent performance of general-purpose antioxidant.
auxiliary antioxidant role is to produce free radicals can prevent or delay the oxidation process. It mainly includes the peroxide decomposition agent and metal ions passivator two kinds big. Can react with peroxide and generate stable compound material called light oxide decomposition agent, and can passivation metal ion catalytic aging process material called passivator metal ions. At low temperatures, phosphite ester is a kind of very good peroxide decomposition agent.
antioxidant 264 does not change color, no pollution, can be used for PE, PVC, PP, PS, ABS and pet plastic, especially suitable for white or light color plastic products processing and food packaging materials, generally less than 1%. But the low relative molecular mass, volatile, not suitable for in high temperature plastic processing or use. Through to the introduction of other groups in molecules, the best means of increasing the relative molecular mass to improve this defect, antioxidant 1076 is one of them.
more excellent articles: antioxidants, click directly.
http://www。 csssld。 cn//html/2018/Info_0121/722。 HTML
changshu smoothly da plastic products factory website: http://www. csssld。 Cn /
more wonderful articles, immediately search: changshu da plastic products factory smoothly
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