Overview
Easy Release Polycarbonate (PC) is a modified thermoplastic engineered to reduce adhesion to molds during injection molding. It retains the inherent strength and clarity of standard PC while incorporating additives like silicone or fluoropolymers to enhance demolding. This variant is critical for high-volume production of intricate parts, minimizing downtime for mold cleaning. Developed to address industrial demands for efficiency, it is particularly favored in automotive and electronics sectors. The material’s compatibility with colorants and flame retardants further expands its utility in customized applications.
Physical and Chemical Properties
Easy Release PC exhibits a balance of mechanical robustness and thermal resistance, with tensile strength ranging from 55–75 MPa. Its low shrinkage rate (0.5–0.7%) ensures dimensional stability in precision parts. The modified surface chemistry reduces friction coefficients by 15–30% compared to conventional PC. The material maintains transparency (up to 90% light transmission) unless filled with additives. It resists acids and oils but may degrade under prolonged alkali exposure. Heat deflection temperature (HDT) typically reaches 130–140°C at 1.82 MPa load.
Main Applications
Primary use cases include automotive lens covers, LED housings, and medical device components requiring sterilizability. In electronics, it’s employed for connector housings and thin-wall casings where smooth ejection prevents stress marks. Industrial tooling benefits from reduced mold fouling, extending tool life. Specialty grades with UL94 V-0 flammability ratings serve electrical insulation applications. Emerging uses encompass 3D printing filaments for high-temperature prototypes.
Safety and Storage
While PC is generally safe, processing above 300°C may release trace bisphenol A (BPA). Adequate ventilation is advised during machining. Pellets should be stored in moisture-proof packaging to prevent hydrolysis degradation. Firefighting measures include CO2 or dry chemical extinguishers. Spills pose minimal environmental risk but should be contained to prevent slip hazards. Personal protective equipment (PPE) like gloves and goggles is recommended during handling.
B2B Procurement Guide
Specify MFI (e.g., 10–30 g/10min at 300°C) to match injection speed requirements. For optical clarity, request low-additive formulations. Bulk orders (20+ metric tons) often attract 8–12% discounts from major suppliers like Covestro or SABIC. Audit suppliers for ISO 9001 certification and batch traceability. Sample testing should assess demolding force (target: <20% reduction vs. standard PC). Lead times average 4–6 weeks for custom-compounded grades.
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