IV Enhancement for PET and Recycled PET
Increase recycled content and restore performance in PET applications with targeted IV enhancement.
Nexam Chemical’s Reactive Recycling™ solutions rebuild polymer properties and IV during processing, enabling consistent quality and reducing the need for costly solid-state polymerization (SSP).
Challenges with recycled PET
Mechanical recycling of PET leads to reduced intrinsic viscosity (IV), limiting material performance and application range.
This results in:
- Reduced melt strength and unstable processing
- Increased brittleness in final products
- Limitations in recycled content
- Need for SSP or virgin material to meet specifications
Restore PET performance with Reactive Recycling™
Reactive Recycling™ enables in-line rebuilding of polymer structure, restoring properties lost during recycling.
By adding a reactive masterbatch during processing, converters benefit from:
- Fast and cost-efficient IV increase
- Improved melt strength and processing stability
- Higher recycled content in final products
IV enhancement tailored to your application
Different PET applications require different IV enhancement approaches:
Sheets, films, thermoforming and rigid packaging
Focus: melt strength, sheet stability, food-grade compliance
Product: NEXAMITE® M021200
Continuous filaments, textile yarn and PET strapping
Focus: IV combined with mechanical performance (tenacity, elongation, stretching)
Product: NEXAMITE® M992000 (linear chain extension)
Staple and carpet fibers
Focus: throughput stability and broad feedstock tolerance
Product: NEXAMITE® M021200
NEXAMITE® M021200
IV enhancer for PET sheets and films, thermoformed packaging, and staple fibers.
IV as function of LDR, % of NEXAMITE® M021200. Starting IV before compounding: 0.59.
Key benefits
- Efficient IV increase at low dosage
- Enables higher rPET content, up to 100%
- Enables increased amount of internal regrind to save cost
- Improves melt strength and process stability
- Reduces brittleness in thermoformed products
- Approved for food contact applications (EFSA & FDA)
- Epoxy-free formulation
Typical applications
- Thermoformed packaging (aPET, cPET, foamed PET trays, cups)
- PET sheets and films
- Staple and carpet fibers
See how it is applied in PET thermoforming and staple fiber production .
NEXAMITE® M992000
Linear IV enhancer for continuous filaments, fibers and PET strapping. NEXAMITE® M992000 is a linear chain extension solution designed for applications where IV must translate into mechanical performance. This is critical in continuous filaments and PET strapping, where tensile strength, elongation and stretching behaviour determine final product performance.
Key benefits
- Increases IV while maintaining or improving mechanical properties
- Enhances tenacity and stretching performance
- Enables fiber-to-fiber recycling
- Improves spinning stability and reduces fiber breakage
- Compatible with existing PET fiber production lines
Typical applications
- Continuous filaments and textile yarn
- PET strapping bands
- Technical fibers
Learn more about PET fiber and filament applications and PET Strapping
Key benefits of IV-enhancers
- Increase recycled content without compromising performance
- Save cost using more lower IV raw material and more internal regrind
- Reduce or eliminate the need for SSP
- Improve process stability and throughput
- Maintain consistent product quality
Increase recycled content or use of internal regrind without compromising performance
Whether for packaging or fiber applications, Nexam Chemical helps you achieve stable processing and consistent quality using recycled PET.
Discuss your application
Share your material, process, or requirements — our team will help you find the right solution.