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Twin-Screw Degradable Masterbatch

Updated: 2026-07-21

Overview

Biodegradable twin-screw masterbatch is a polymer additive designed to enhance the biodegradability of plastic products. It is produced using advanced twin-screw extrusion technology, which ensures homogeneous dispersion of biodegradable components within the polymer matrix. This masterbatch is increasingly adopted in industries aiming to reduce environmental footprints, such as packaging and agriculture. The product is compatible with a wide range of thermoplastics, including polyethylene (PE), polypropylene (PP), and polylactic acid (PLA). Its formulation can be customized to meet specific biodegradation rates and mechanical property requirements, making it a versatile solution for sustainable plastic production.

Physical and Chemical Properties

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The biodegradable twin-screw masterbatch typically appears as granules or pellets, with colors ranging from white to off-white. Its density is approximately 1.0-1.3 g/cm³, and it melts within the range of 120-160°C, depending on the polymer base. The masterbatch is insoluble in water but exhibits excellent compatibility with most thermoplastics. Key properties include uniform dispersion of additives, which ensures consistent biodegradation performance across the final product. The masterbatch also improves the processing characteristics of the base polymer, such as melt flow and thermal stability, without significantly altering mechanical properties like tensile strength or elongation at break.

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Main Applications

The primary application of biodegradable twin-screw masterbatch is in the production of eco-friendly plastic products. It is widely used in packaging films, disposable cutlery, shopping bags, and agricultural mulch films. These products benefit from the controlled biodegradation rates enabled by the masterbatch, which helps mitigate plastic waste accumulation. In the agricultural sector, the masterbatch is used to produce mulch films that degrade after the growing season, eliminating the need for manual removal. In packaging, it allows manufacturers to meet regulatory requirements for biodegradability while maintaining the durability and functionality of conventional plastics.

Safety and Storage

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Biodegradable twin-screw masterbatch is generally non-toxic and safe to handle under standard polymer processing conditions. However, it should be stored in a cool, dry environment to prevent moisture absorption, which can affect processing performance. Direct sunlight should be avoided to maintain product stability. During handling, standard personal protective equipment (PPE) such as gloves and safety glasses is recommended. The masterbatch does not emit hazardous fumes under normal processing temperatures, but adequate ventilation is advised to ensure worker safety.

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B2B Procurement Guide

When procuring biodegradable twin-screw masterbatch, B2B buyers should prioritize suppliers with verified certifications for biodegradability, such as EN 13432 or ASTM D6400. Compatibility with the target polymer is critical; buyers should request technical data sheets and conduct small-scale trials if necessary. Price ranges typically fall between $2.5 and $5.0 per kg, but bulk orders may qualify for discounts. Buyers should also evaluate supplier reliability, including lead times, minimum order quantities, and after-sales support. Sourcing from manufacturers with in-house R&D capabilities can ensure customized solutions for specific applications.

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