Aicaigou LogoB2B WikiIndustrial Encyclopedia

General Plastic Granules

Updated: 2026-07-15

Overview

General plastic granules are standardized thermoplastic materials processed into small pellets for industrial use. They serve as raw material for manufacturing plastic products through methods like injection molding or extrusion. The most common types include polyethylene (PE), polypropylene (PP), and polystyrene (PS), each offering distinct mechanical and thermal properties. These granules are favored for their consistency, ease of handling, and adaptability to additives like colorants or stabilizers. Their production involves polymerization, compounding, and pelletizing, ensuring uniform size and composition for reliable processing in downstream applications.

Physical and Chemical Properties

日本宝理POM TR-5注塑级挤出级塑胶原料25规格东莞市华韵塑胶原料有限公司

General plastic granules exhibit low density, high chemical resistance, and insulating properties. Their thermoplastic nature allows repeated melting and solidification without significant degradation, making them suitable for recycling. Mechanical properties like tensile strength and impact resistance vary by polymer type and additives. Thermal stability typically ranges from -20°C to 120°C for standard grades, with some engineered variants withstand higher temperatures. UV-resistant additives are often incorporated for outdoor applications. The granules are hydrophobic, with water absorption rates below 0.01% for most polyolefins.

商家经验真实案例 · 安全可信
极核ABS故障解析
本文深入探讨极核ABS系统常见故障现象、可能原因及实用解决方案,帮助读者快速识别问题并采取合理应对措施,保障设备稳定运行。

Main Applications

These granules are foundational to plastics manufacturing, used to produce items like containers, pipes, films, and automotive components. PE granules dominate packaging (e.g., bottles, bags), while PP is preferred for living hinges and heat-resistant containers. PS is common in disposable cutlery and insulation. In B2B contexts, they are supplied to injection molding facilities, film extruders, and blow molding operations. Specialized grades meet industry-specific needs, such as food-safe formulations or flame-retardant variants for electronics housings.

Safety and Storage

预徽公司 优质好物 易成型脱模 pvc生产原料塑料泰兴预徽塑料制品有限公司

While generally safe at room temperature, heating during processing may release volatile organic compounds (VOCs). Adequate ventilation and personal protective equipment (PPE) like respirators are recommended in industrial settings. Static electricity buildup during handling requires anti-static measures. Storage should prevent moisture absorption, which can affect processing. Original packaging (often 25kg bags) should remain sealed until use. Long-term exposure to sunlight may degrade some polymers, necessitating opaque or UV-blocking storage containers.

商家经验真实案例 · 安全可信
PET/PE起封温度
本文探讨PET和PE材料的起封温度特性,分析影响其密封性能的关键因素,并提供实际应用中的注意事项,帮助读者理解如何根据材料特性选择合适的密封条件。

B2B Procurement Guide

Buyers should specify polymer type (e.g., HDPE, LDPE), MFI, and any required certifications (e.g., FDA, RoHS). MOQs typically start at 1 metric ton, with bulk discounts available. Reputable suppliers provide material data sheets (MDS) and batch consistency guarantees. Consider regional availability and logistics costs, as granules are bulky but not hazardous for transport. For specialized applications, custom-compounded granules with additives (e.g., glass fiber reinforcement) may warrant higher pricing but offer performance benefits.

Related Manufacturers