Overview
Filled polycarbonate material is a composite of polycarbonate resin combined with reinforcing fillers such as glass fibers, minerals, or other additives. These fillers enhance the base material's mechanical and thermal properties, making it suitable for demanding applications. Polycarbonate is already known for its impact resistance and transparency, but the addition of fillers improves stiffness, dimensional stability, and heat resistance. This makes filled polycarbonate a preferred choice for industries requiring durable and high-performance plastic components.
Physical and Chemical Properties
Filled polycarbonate exhibits superior mechanical strength compared to unfilled polycarbonate, with tensile strength and flexural modulus increasing proportionally with filler content. The material retains its impact resistance while gaining improved creep resistance. Thermal properties are also enhanced, with heat deflection temperatures (HDT) reaching up to 140-150°C for glass-filled variants. Chemically, filled polycarbonate resists many solvents and oils but may be attacked by strong acids or bases. UV stabilizers are often added for outdoor applications.
Main Applications
In the automotive industry, filled polycarbonate is used for under-the-hood components, connectors, and housings where heat and vibration resistance are critical. The electronics sector employs it for enclosures, sockets, and insulators. Industrial applications include gears, bearings, and machinery parts requiring dimensional stability. Medical devices benefit from its sterilizability and durability. The material's versatility also extends to consumer goods like power tool housings and safety equipment.
Safety and Storage
While filled polycarbonate is generally safe to handle, precautions should be taken during machining to avoid inhaling dust particles. Proper ventilation and personal protective equipment (PPE) like masks are recommended. Storage should be in a controlled environment to prevent moisture absorption, which can affect processing. Bulk materials are typically packaged in moisture-proof bags or containers. Shelf life is generally long if stored correctly, but prolonged exposure to UV light should be avoided.
B2B Procurement Guide
When procuring filled polycarbonate, clearly specify the filler type (e.g., 10-40% glass fiber) and any additional additives like flame retardants or UV stabilizers. Certifications such as UL94 for flammability or FDA compliance for food contact may be required. Lead times can vary based on custom formulations, so plan accordingly. Pricing depends on filler content and order volume, with discounts typically available for large purchases. Reliable suppliers will provide material data sheets (MDS) and processing guidelines.
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