HECO®NOX
ANTIOXIDANT ADDITIVE

We don’t have an additive against brittle, fragile hair. But brittle plastics are not so easy to come by thanks to our HECO®NOX antioxidants. Our thermal stabilisers protect polymers from thermal oxidation and ensure heat-resistant beauty even when plastics are very old.

Product benefits – Additives for plastics

RADICAL

Harmful oxidation is inhibited by scavenging free radicals.

STABILISING

Protection against thermally induced ageing.

HECO®NOX antioxidants for the plastics industry

It doesn’t always take high heat, even at normal room temperature polymers can already start corroding – not only during processing but also in the finished product. Thermal influences not only cause skin to age more quickly and wrinkles to appear, plastics are not spared either. The result: cracks and embrittlement. At first, the polymer chains are attacked on the inside, they break and react with oxygen. Later, the embrittlement is also noticeable and visible on the outside – the plastic façade crumbles and loses its colour brilliance.

We counteract this ageing process of plastics through heat-related decomposition with two different types of our HECO®NOX antioxidants – preferably as a heat-resistant rejuvenating combination:

Radical Action – Primary antioxidants act as radical scavengers and prevent the oxidation of the long polymer chains with oxygen.

Smooth action – Secondary antioxidants act as peroxide decomposers to dissolve aggressive peroxides and stop the decomposition of the plastic smoothly.

Whether as a primary antioxidant such as HECO®NOX 604 PS or as antioxidant mixtures such as HECO®NOX 625 PE and HECO®NOX 605 PA – with our HECO®NOX antioxidants, plastics become thermally stable, live longer and remain supple. By the way, our thermostabilising additives are often used with recycled material so that the second plastic life also remains “wrinkle-free” for as long as possible.

We would also be happy to delay the ageing process of your plastic!

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The following HECO®NOX antioxidants for plastics are available: Food contact approvals  
Product Physical Form Primary Effect Suitable for EU FDA Pharma
603 PP Granule Long-term thermostabilizer PP
604 PS Granule Primary Antioxidant PS, ABS
605 PA Granule Long-term thermostabilizer PE, PP, PA
620 PA Granule Processing and
long-term thermostabilizer
PA
625 PE Granule Long-term thermostabilizer PE, PA
650 CYC Granule Long-term thermostabilizer for
recycling applications
PE, PO
(*) Spec. Migration Limit

DO WE SHARE THE SAME VALUES? WE LOOK FORWARD TO GETTING IN TOUCH WITH YOU!

In which application area do you want to be thermostable with our plastic additives?
We would be happy to use our research and development to specifically develop the plastic additive you need to optimise your individual process.