Overview
Modified plastic granules are base polymers engineered with additives or fillers to enhance specific properties. Common modifications include improved impact resistance, flame retardancy, or color stability. These materials are supplied as uniform pellets for easy processing via injection molding or extrusion. The 'with shipping included' model offers cost predictability for bulk buyers, particularly in cross-border B2B transactions. Suppliers often provide technical support to match granules to application requirements, making them versatile for industries from automotive to consumer goods.
Physical and Chemical Properties
The properties vary by base polymer (e.g., PP, ABS, PC) and modifications. Density typically ranges from 0.9 g/cm³ for polyolefins to 1.5 g/cm³ for glass-filled compounds. Thermal stability is tailored to applications, with heat-resistant grades sustaining 150°C+. Chemical resistance depends on the polymer matrix; most resist moisture and mild acids/bases. UV-stabilized variants prevent degradation outdoors. Additives like talc or carbon fiber alter mechanical properties, while flame retardants meet safety standards like UL94.
Main Applications
In automotive manufacturing, modified granules are used for dashboards (heat-resistant PP) and connectors (high-flow PA66). Electronics leverage flame-retardant ABS for housings, while packaging employs barrier-enhanced PE to extend shelf life. Medical applications include sterilizable PC granules for devices. The shipping-included model benefits small-to-mid manufacturers by reducing logistics costs, especially for customized small-batch orders.
Safety and Storage
Store in sealed bags to prevent moisture absorption, which can affect processing. Avoid temperatures above 40°C to prevent pellet clumping. Most grades are non-hazardous but require SDS review for additive-specific precautions. Processing safety: Use local exhaust ventilation when heating to mitigate fume exposure. Modified granules with halogenated flame retardants may require special disposal compliance.
B2B Procurement Guide
Key considerations include MOQ (typically 500+ kg), lead time for custom formulations, and supplier certifications like ISO 9001. Request samples to test processability and final part properties. Clarify shipping terms: '包邮' (free shipping) often applies to orders above a value threshold. Verify if duties/taxes are included. For niche modifications (e.g., conductive grades), expect longer lead times and higher costs.
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