antioxidant medical intermediate for rubber and plastics
antioxidant medical intermediate for rubber and plastics
antioxidant medical intermediate for rubber and plastics
antioxidant medical intermediate for rubber and plastics
antioxidant medical intermediate for rubber and plastics
ijerph | free full-text | rubber antioxidants and their transformation

IJERPH | Free Full-Text | Rubber Antioxidants and Their Transformation

Antioxidants are prevalently used during rubber production to improve rubber performance, delay aging, and extend service life. However, recent studies have revealed that their transformation products (TPs) could adversely affect environmental organisms and even lead to environmental events, which led to great public concern about environmental occurrence and potential impacts of rubber

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determination of antioxidants and uv- stabilizers in the environment - diva

Determination of antioxidants and UV- stabilizers in the environment - DiVA

1.2. Antioxidants and UV-stabilizers Antioxidants and UV-stabilizers are two groups of compounds that are currently being used as additives in order to expand the lifetime of various plastic products. They are added in order to protect the polymers against radical degradation caused by oxygen and ultraviolet light. Twelve

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leachables from plastic materials in contact with drugs. state of the

Leachables from plastic materials in contact with drugs. State of the

The plastics used in drug packaging systems and medical devices are composed of homologous polymers and generally contain additives such as antioxidants, plasticizers and others, to improve their physicochemical properties. However, these additives have potential drawbacks due to possible migration or leaching towards the drug product.

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(pdf) rubber antioxidants and their transformation products

(PDF) Rubber Antioxidants and Their Transformation Products

antioxidants are the main rubber antioxidants produced and used in China, of which 6PPD and 2,2,4-T rimethyl-1,2-dihydroquinoline (TMQ, RD) have the highest production, account- ing for more than

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antioxidants - basf

Antioxidants - BASF

Irganox 245 Irganox 1135 Part of primary antioxidants, are aromatic amines, mainly used in carbon-black filled rubbers and some polyurethane applications. Irganox ? 5057 is such an aromatic amine for polyol and rubber stabilization. Secondary antioxidants, including phosphites and thioesters, react with hydroperoxides to yield non-radical products.

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determination of antioxidant 264 in the butyl rubber stopper and the

Determination of Antioxidant 264 in the Butyl Rubber Stopper and the

The FDA Cancer Evaluation Committee is also considering the carcinogenicity of antioxidant 264 . As rubber stoppers have the advantages of simple production process, abundant raw material sources, and high rate of quantity and price , Wang et al. identified that it is very important to determine the content of antioxidant 264 in rubber stoppers.

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insight into the anti-aging mechanisms of natural phenolic antioxidants

Insight into the anti-aging mechanisms of natural phenolic antioxidants

tively used in a rubber matrix.6,7 Normally, antioxidants are viewed as e ective additives, protecting materials against ff subsequent aging and opening opportunities as an inhibitor component of polymers, e.g., plastic and rubber.

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antioxidants and antioxidant methods: an updated overview

Antioxidants and antioxidant methods: an updated overview

Antioxidants had a growing interest owing to their protective roles in food and pharmaceutical products against oxidative deterioration and in the body and against oxidative stress-mediated pathological processes. Screening of antioxidant properties of plants and plant-derived compounds requires appropriate methods, which address the mechanism of antioxidant activity and focus on the kinetics

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an alternative antioxidant for sulfur-vulcanized natural rubber: henna

An alternative antioxidant for sulfur-vulcanized natural rubber: Henna

The most widespread used antioxidants are phenolic and amine-based synthetic antioxidants and 2,2,4-trimethyl-1,2-dihydroquinoline in rubber industry. However, synthetic antioxidants cause some environmental problems during their production and tend to be replaced by natural alternatives.

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journal of applied polymer science | wiley online library

Journal of Applied Polymer Science | Wiley Online Library

A novel filling antioxidant (Lig-g-RT) to improve the mechanical properties and antiaging performance of styrene-butadiene rubber (SBR) composites was prepared by grafting antioxidant intermediate -aminodiphenylamine (RT) on the surface of lignin via the linkage of silane coupling agent.

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