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STABILIZATORY PRZETWARZANIA

Antyutleniacze procesowe

Structural Formula:

Do najważniejszych antyutleniaczy fenolowych zalicza się

2,6-ditert-butylo-p-krezol

(BHT).

Applications:

2,6 DBPC is a non-staining, sterically hindered phenollc antioxidant, widely used in plastics and synthetic rubbers, Elastomers, Lubricants, Petroleum products, Polyolefin, Food products, Cosmetics etc, and is specially effective as a process stabilizer,

Antioxidant system provides protection to the specific polymer during Processing and to function during the service life of the finished product. 2,6 DBPC is ideally suited as antioxidant in a uariety of polymers. Normal concentrations of 50-400 ppm are used in Iow density polyethylene and higher concentrations are used in high density polyethylenes. Also polypropylene is morę susceptible to oxidation and such polymers are used and processed at higher temperaturę. Therefore, antioxidant concentration is normally increased to 0.25 to 1% Polybutylene, PVC etc. use 2,6 DBPC as primary antioxidant intended to be the free radical scavenger. 2,6 DBPC does not effect dyes or pigments in plastics and its non-toxic naturę permits use in plastic containers and wrapping used for

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