The Universal Selection Source: Polymer Additives

Antioxidants are necessary to avoid polymer ageing and degradation. Shear stress, oxygen, mechanical loading are responsible for polymer degradation, loss of mechanical and aesthetical properties. Antioxidants help to combat the chemical reactions generated by these factors. Choosing an antioxidant is not only a question of performance. The latest technologies offer superior polymer stabilization but also help the whole polymer value chain to improve its business profitability.

What are polymer antioxidants?

What is the purpose of polymer antioxidants?

Under the effects of shear stress and mechanical loading in an oxygen environment, plastics and elastomers are generally degraded and age rapidly. This is translated by a loss of mechanical properties like strength, stiffness or flexibility and a discoloration, yellowing or loss of gloss of the plastic.

Polymer antioxidants are used to combat this degradation and extend plastics' lifetime. Antioxidants protect the polymer from heat and oxygen ageing.

Antioxidants are added prior to the resin processing. This is why polymer processors, compounders and OEMs need performing and cost-effective solutions which will optimize their business profitability while protecting the plastic all along its lifetime. Converters are looking for antioxidants solutions that will ease and accelerate their production whereas OEM's are paying attention to the polymer quality, aesthetic, durability and regulation compliancy.

How to choose effective polymer antioxidants?

As just said, polymer producers, compounders, converters and OEMs need cost-effective polymer stabilizers, easy to handle, with excellent processing efficiency and, last but not least, compliant with regulatory, safety and environmental requirements. And this is just the tip of the requirement iceberg.

To help you find your path through this additive jungle, Addivant has developed antioxidants allowing you to adapt them to your individual and market challenges in accordance with your production environment. Our objective? Help you grow your business profitability with performing and innovative antioxidants.

See how Addivant's antioxidant solutions can help you grow your polymer business through the following sections:

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Case Studies from Antioxidants

Antioxidant for MV XLPE cable production: Improve your efficiency while decreasing costs

LOWINOX® FAST XL is a good solution as antioxidant for cable production.

LOWINOX® FAST XL liquid antioxidant meets the challenging performance requirements of XLPE power cable manufacturers: long-term heat aging performance, scorch protection and more.

This new generation high performance antioxidant for cross-linked polyethylene (XLPE) applications is a good option for XLPE power cable producers using the DPI process who are looking for improved production flexibility and lower production costs.


Extend polyurethane foams’ lifetime whilst meeting new VOC/FOG requirements in the automotive industry

You are probably struggling to improve automotive polyurethane foams’ durability and, at the same time, to limit the emission levels in order to meet new indoor air quality regulations (for VOC and FOG emissions). Of course, while preserving the polymer’s performance. 

Addivant has developed NAUGARD® PS 3015, a high-performance polyurethane foam stabilisation solution

Unlike the well-known industry benchmark used in polyol/polyurethane applications, NAUGARD® PS 3015 antioxidant enables the production of polyurethane foams meeting stringent new VOC/FOG standards in the automotive industry. In addition, with this new antioxidant solution, there is no compromise on the foams’ performance (scorch reduction, gas fading performance, thermal stability).


Increase productivity (+5% faster cross-linking speeds) and improve cable quality consistency for MV XLPE cable production

Addivant™ has developed LOWINOX® FAST XL, a new generation high performance liquid antioxidant solution for cross-linked polyethylene (XLPE) applications, which meets the challenging performance requirements of XLPE cable manufacturers:

  • Long-term heat aging performance
  • Scorch protection
  • Excellent compatibility with organic peroxides
  • High cleanliness levels


How to generate extra revenues by reducing your PE films production downtimes

Powder PE antioxidant, or polymer stabilizers, are blooming on films' surface during the extrusion. This phenomenon generates an accumulation of powder within the extrusion line that needs to be removed. As a consequence, your production line has to be stopped for several minutes and several time a day, which is terrible for your business profitability.

A next generation liquid PE antioxidant has been developed to overcome the drawbacks of powder additives. Download the case study to see why.


How to increase the amount of re-grind material when producing PE films

Polyethylene film producers are regularly using re-grind materials to recycle their damaged films and avoid wasting too much resin. Traditional powder antioxidants offer limited use of re-grind material and a limited number of extrusion passes (1 up to 3 passes maximum). Next generation PE antioxidants allow much more extrusion pass and a higher amount of re-grind material thanks to their better heat protection.

Download the case study to see the comparison of traditional and next generation antioxidants.



Downloads from Antioxidants

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