Home / Additives to make plastics better and more sustainable / Stable Processing of rPE at Higher PCR Content

Stable Processing of rPE at Higher PCR Content

Improve Processing and Performance in Recycled Polyethylene

Increase recycled content in polyethylene applications while maintaining stable processing, consistent product quality, and long-term performance.

Nexam Chemical provides a complete solution — from melt strength enhancement to stabilization and additive systems — enabling reliable use of recycled PE across film, blow moulding, and pipe applications.

Challenges with recycled polyethylene

Recycled polyethylene (rPE) introduces variability that makes processing more difficult:

  • Low melt strength and unstable extrusion
  • Sagging parisons in blow moulding
  • Film instability and thickness variation
  • Contamination and gels
  • Inconsistent melt flow and narrow processing windows

These issues often limit how much recycled material can be used in production.

Reactive Recycling™ for polyethylene

Reactive Recycling™ modifies polymer structure directly during processing, improving melt strength and stabilizing recycled material streams.

This allows converters to:

  • Increase PCR content
  • Improve process stability
  • Use lower quality or mixed feedstock
  • Maintain consistent production performance

Improved melt strength and process stability

Reactive Recycling™ for rPE enables:

  • Increased melt strength → more stable extrusion
  • Improved process consistency
  • Wider processing window for variable material quality
  • Reduced sensitivity to contamination and blend variations
  • Use of lower quality feedstock

NexCircle® R401 — high-efficiency melt strength enhancement

NexCircle® R401 is a next-generation reactive additive designed to improve performance of recycled polyethylene at lower dosage.

Key benefits

  • Strong melt strength improvement at low addition levels
  • Enables higher PCR content with stable processing
  • Improves consistency across variable feedstock
  • Reduces need for virgin PE blending
  • Supports robust industrial processing conditions

Improved melt strength and reduced MFR enable stable processing of recycled polyethylene at higher PCR content.

NEXAMITE® R305 — stable processing with recycled PE

NEXAMITE® R305 is a proven melt strength enhancer for recycled polyethylene, widely used in film and blow moulding applications.

Key benefits

  • Stabilizes extrusion and improves melt strength
  • Enables processing of challenging PCR streams
  • Improves tolerance to contamination
  • Reduces sagging and improves dimensional stability
  • Improves Environmental Stress Cracking Resistance (ESCR) in HDPE

Advanced stabilization for recycled polyolefins

OIT Booster – PE 0188L

A specially tailored masterbatch solution designed to restore stability by improving resistance to thermal oxidation in recycled materials.

Key benefits

  • Improves Oxidative Induction Time (OIT)
  • Supports long-term durability
  • Compensates for reduced antioxidant levels in recycled PE
  • Enhances performance during processing and use

OIT of rHDPE with different levels of OIT Booster – PE 0188L.

Complete additive offering for polyethylene

In addition to Reactive Recycling™, Nexam Chemical offers:

Standard additive masterbatch solutions

  • Antioxidants (AO)
  • UV stabilizers (HALS, UV absorbers)
  • ReColour Plus™ — colour masterbatch specifically for recycled polyolefins
  • Mineral masterbatch (stiffness)
  • Impact modifiers

Functional additives

  • Slip and mould release agents
  • Antistatic additives
  • Laser marking additives
  • Cleaning compounds
  • Desiccant additives

Application examples

Applications include:

Increase recycled content without compromising performance

From melt strength and processing stability to long-term durability and colour consistency, Nexam Chemical enables reliable use of recycled polyethylene.

Discuss your application

Share your material, process, or requirements — our team will help you find the right solution.

sales@nexamchemical.com

Contact us for more information

 

IV Enhancement for PET and rPET

NEXAMITE® IV enhancers for cost-efficient and effective IV improvement of PET and rPET.

+

 

Stable Processing of rPE at Higher PCR Content

Improve processing and performance in recycled polyethylene without compromising product quality.

+

 

Improve Flow, Strength and Consistency in Recycled PP

Improve processing and tailor melt flow in recycled polypropylene for consistent and reliable production.

+

 

ReColour Plus

Enable consistent colour and performance in recycled plastics without compromise.

+

 

Colour masterbatches

Tailored colour masterbatch solutions for consistent quality, stable processing, and reliable performance.

+

 

Additive/functional masterbatches

Improve processing, performance, and durability of plastics with tailored additive solutions.

+

 

Enhance Polyester Foam Performance

Improve stability, structure, and performance in polyester foam extrusion with tailored additive solutions.

+

 

Chemical Services at Nexam Chemical

End-to-end chemical services from concept to production, including synthesis, pilot-scale testing, and contract manufacturing of specialty chemicals.

+

 

High-Temperature Crosslinkers for Polyimides

High-temperature crosslinkers and monomers for polyimide systems, improving Tg, thermal stability and mechanical performance.

+

 

High Temperature Resins

High-temperature oligoimide resin for composite manufacturing with low viscosity, high Tg and wide processing window.

+

 

Functional Chemicals

Functional chemicals including bismaleimides, dianhydrides and specialty intermediates for high-performance materials and chemical applications.

+

 

Improve Processing of Polyamides

Chain extenders for polyamides to increase molecular weight, improve melt strength and stabilize processing in extrusion applications.

+

 

Melt Strength Enhancement for Polyethylene

Enhance melt strength, processing stability, and long-term performance in virgin polyethylene applications.

+