KA2052 KT1052 KZ2050
BENQI
translucent granule
multifunctional chain extender compound
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Our premium PET Special Chain Extension Masterbatch is a scientifically formulated additive designed to significantly enhance the performance and processability of both virgin and recycled PET (rPET) & PETG materials. This compound integrates multiple functional group chain extenders, carrier resin, lubricants, and antioxidants into a single, easy-to-use translucent granule.
It primarily works by re-linking the polymer chains broken during thermal processing or inherent in recycled content. This effectively increases the Intrinsic Viscosity (IV) and dramatically improves the melt strength and viscoelasticity of the polymer melt. Unlike some conventional additives, our chain extender offers exceptional long-term stability, ensuring consistent performance throughout your production cycle with minimal subsequent degradation.
Whether you are working with new materials or championing sustainability with recycled content, this agent is your key to unlocking higher value applications and achieving superior product quality.
Key Features & Benefits
Effective Chain Extension & IV Boost: Rebuilds molecular weight, counteracting the IV drop common in recycling and processing.
Enhanced Melt Strength: Essential for stable foaming, extrusion, and blow molding processes. Prevents sagging and rupture.
Improved Melt Viscoelasticity: Provides better control over the polymer melt, leading to higher quality finished products.
Superior Foaming Performance: Creates uniform, fine-celled foam structures. Compatible with various chemical and physical blowing agent systems.
Excellent for Recycled Content: Revitalizes post-consumer (rPET) and post-industrial PET/PETG, restoring their processability and mechanical properties.
Long Processing Window: Offers strong thermal stability, reducing the risk of degradation during extended production runs.
Easy to Use: Supplied as a granule for straightforward dosing and homogeneous blending with your base polymer.
Primary Application Fields
This versatile chain extender is ideal for a wide range of PET and PETG manufacturing processes, including:
PET Foam Production: Manufacturing of lightweight, rigid PET foams for core materials in sandwich panels (used in construction, transportation), protective packaging, and buoyancy products.
Blow Molding: Production of bottles, containers, and large industrial parts where high melt strength is crucial for parison stability.
Sheet & Film Extrusion: Enhancing the quality of PET sheets for thermoforming (e.g., food packaging, trays) and specialty films.
Fiber & Filament Spinning: Improving the spinnability and strength of PET fibers for technical textiles and non-wovens.
Injection Molding: Facilitating the molding of larger or more complex parts from recycled PET by improving flow and final part strength.
3D Printing (Filament): Upgrading the quality and performance of rPET-based 3D printing filaments.
![]() | ![]() | ![]() |
| Light-transmitting plate | Lighting translucent cover | decorative boards |
Usage Recommendation
A dosage of 1.0% to 3.0% by weight is typically recommended, depending on the initial material quality and the desired final properties.
Packaging & Storage
Packaged in 25 kg bags. Store in a cool, dry place away from direct sunlight, heat sources, and steam pipes.
Our premium PET Special Chain Extension Masterbatch is a scientifically formulated additive designed to significantly enhance the performance and processability of both virgin and recycled PET (rPET) & PETG materials. This compound integrates multiple functional group chain extenders, carrier resin, lubricants, and antioxidants into a single, easy-to-use translucent granule.
It primarily works by re-linking the polymer chains broken during thermal processing or inherent in recycled content. This effectively increases the Intrinsic Viscosity (IV) and dramatically improves the melt strength and viscoelasticity of the polymer melt. Unlike some conventional additives, our chain extender offers exceptional long-term stability, ensuring consistent performance throughout your production cycle with minimal subsequent degradation.
Whether you are working with new materials or championing sustainability with recycled content, this agent is your key to unlocking higher value applications and achieving superior product quality.
Key Features & Benefits
Effective Chain Extension & IV Boost: Rebuilds molecular weight, counteracting the IV drop common in recycling and processing.
Enhanced Melt Strength: Essential for stable foaming, extrusion, and blow molding processes. Prevents sagging and rupture.
Improved Melt Viscoelasticity: Provides better control over the polymer melt, leading to higher quality finished products.
Superior Foaming Performance: Creates uniform, fine-celled foam structures. Compatible with various chemical and physical blowing agent systems.
Excellent for Recycled Content: Revitalizes post-consumer (rPET) and post-industrial PET/PETG, restoring their processability and mechanical properties.
Long Processing Window: Offers strong thermal stability, reducing the risk of degradation during extended production runs.
Easy to Use: Supplied as a granule for straightforward dosing and homogeneous blending with your base polymer.
Primary Application Fields
This versatile chain extender is ideal for a wide range of PET and PETG manufacturing processes, including:
PET Foam Production: Manufacturing of lightweight, rigid PET foams for core materials in sandwich panels (used in construction, transportation), protective packaging, and buoyancy products.
Blow Molding: Production of bottles, containers, and large industrial parts where high melt strength is crucial for parison stability.
Sheet & Film Extrusion: Enhancing the quality of PET sheets for thermoforming (e.g., food packaging, trays) and specialty films.
Fiber & Filament Spinning: Improving the spinnability and strength of PET fibers for technical textiles and non-wovens.
Injection Molding: Facilitating the molding of larger or more complex parts from recycled PET by improving flow and final part strength.
3D Printing (Filament): Upgrading the quality and performance of rPET-based 3D printing filaments.
![]() | ![]() | ![]() |
| Light-transmitting plate | Lighting translucent cover | decorative boards |
Usage Recommendation
A dosage of 1.0% to 3.0% by weight is typically recommended, depending on the initial material quality and the desired final properties.
Packaging & Storage
Packaged in 25 kg bags. Store in a cool, dry place away from direct sunlight, heat sources, and steam pipes.