Overview
Plastic frame granules are specialized polymer particles designed for injection molding or extrusion processes to produce durable plastic frames. These granules are engineered to meet specific performance criteria such as impact resistance, weatherability, and dimensional stability. Common base polymers include PVC, ABS, and polypropylene, often modified with additives like UV stabilizers or plasticizers. The granules' uniform size and composition ensure consistent processing and final product quality across industrial applications.
Physical and Chemical Properties
The granules exhibit thermoplastic behavior, allowing repeated melting and solidification during processing. Typical melt flow indices range from 5-30 g/10min (230°C/2.16kg) depending on the polymer formulation. Chemical resistance varies by material: PVC offers good resistance to acids and alkalis, while ABS provides better impact strength. Most formulations include additives for enhanced UV stability (critical for outdoor applications) and flame retardants where required by safety standards.
Main Applications
Primary use is in manufacturing window and door frames, where the material's insulation properties and low maintenance requirements outperform traditional materials. Automotive applications include interior trim components and protective edge moldings. Consumer goods sector utilizes these granules for picture frames, mirror borders, and display fixtures. The construction industry values them for their corrosion resistance and ability to replicate wood grain textures without the maintenance drawbacks of natural materials.
Safety and Storage
Granules should be stored in original packaging or sealed containers to prevent moisture absorption, which can cause processing defects. Ideal storage temperature is below 30°C with relative humidity under 50%. During processing, adequate ventilation is mandatory as some polymers may release volatile compounds at high temperatures. Material Safety Data Sheets (MSDS) should always be consulted for specific handling guidelines, particularly for halogenated polymers like PVC.
B2B Procurement Guide
Industrial buyers should specify: polymer base (e.g., virgin vs. recycled content), mechanical property requirements (tensile strength ≥40 MPa), color consistency tolerances, and certification needs (e.g., RoHS, REACH). For large-volume purchases (20+ metric tons), consider negotiating price breaks with manufacturers. Testing certificates for UV stability (QUV testing reports) and flame ratings (UL94 certification) add value for quality-sensitive applications. Lead times typically range from 2-6 weeks for custom formulations.
Related Manufacturers
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