Antioxidant Masterbatch
Slows the oxidative degradation of the polymer; preserves color and physical properties throughout the service life.
Color and durability throughout the service life.
Without additives, polypropylene (PP) tends to degrade on contact with oxygen. In this process, chain scission occurs, the polymer yellows, its physical properties weaken, and its melt flow rate increases; as a result, surface chalking and loss of function can occur.
Although polymer degradation cannot be prevented entirely, antioxidant additives make it possible to preserve color and physical properties throughout the service life. With a broad portfolio of antioxidant additives developed for different applications, Düderi aims to improve the durability and performance of polymers.
What does oxidation do to PP?
Antioxidant additives slow down these effects; color and physical properties can be preserved throughout the service life.
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Chain scission
Contact with oxygen causes breaks in the polymer chains.
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Yellowing
The polymer turns yellow; the product’s appearance deteriorates.
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Loss of properties
Physical properties weaken; surface chalking and loss of function can occur.
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Increase in flow rate
As the polymer degrades, its melt flow rate increases.
Application areas
- Extrusion blow molding
- Injection molding
- General-purpose applications
Key benefits
- Preserves color throughout the service life
- Helps preserve physical properties
- Improves the durability and performance of the polymer
Related pages
Let’s find the right dosage rate for your application together.
Tell us about your polymer, production technology, and expectations; our laboratory will recommend the right additive and dosage rate.
