Polymers like PET and rPET are highly sensitive to heat and moisture during processing. The new processing cycle brings down the intrinsic viscosity or molecular weight of PET. The most effective way to enhance the viscosity and mechanical properties of PET is through chain extension reaction during processing.

Perfect Colourants & Plastics Pvt.Ltd has developed a high-performance chain extender (IV enhancer) masterbatch for PET and recycled PET processing. This additive masterbatch increases the molecular weight of polyester monomers, improves mechanical properties, and abrasion resistance for injection and extrusion applications. 

Working Mechanism of Chain Extender IV Enhancer Masterbatch 

IV enhancer masterbatches are additives used to increase the molecular weight and viscosity of polymers like PET. The chain extension takes place chemically in the melted polymer during processing. This is the process of the active substances in the chain extender masterbatch formulation reacting with the hydroxyl groups of polymer chains. As a leading chain extender IV enhancer masterbatch manufacturer in India, we provide these MBs especially for recycled plastics and general plastics to improve the properties of end-products. IV enhancer additives also have excellent compatibility with other polymer systems like PBT and virgin PBT, and are food-contact safe. A small 1-2% dosage increases the melt strength of the polymer, allowing for ease of processing, mechanical properties and consistency across all batches.

Also Check: Additive Masterbatch Advantages

Popular Applications of Chain Extender IV Enhancer Masterbatches

• Industrial Monofilament
• Engineering Plastics
• Fibers
• Textiles
• Films & Sheets 
• Recycled Materials

Chain Extender Masterbatches in Recycled PET 

The flow enhancer masterbatches play a pivotal role in rPET by restoring molecular weight and improving molecular properties like impact resistance and strength. IV enhancer additives improve the processing during manufacturing without any yellowing, making the material suitable for applications like textiles, packaging, and automotive components, allowing recycled PET to perform similarly to virgin PET, driving sustainability and biodegradability. From PET sheets/film extrusion, PET fibers, and PET foam, our chain extender masterbatch reduces brittleness and increases melt strength for stable processing, faster throughput, and better mechanical properties. 

The chain extender IV enhancer additive has great potential for food packaging and recycled PET fibres. Our IV enhancer additives have opened doors for manufacturers to use recycled plastics at low costs. By increasing the use of recycled PET, businesses can avoid complex solid-state processing and demonstrate a commitment to sustainability. Choose PCPPL’s intrinsic viscosity enhancer masterbatch to enhance the use of PET and rPET. Liquid and solid formulations are available at low addition rates. Connect with our PCPPL to discuss your requirements. 

Also Read: Masterbatches and Compounds for PET