Overview
PC-1220U is a versatile polycarbonate resin engineered for industrial applications requiring toughness and thermal resistance. As a thermoplastic polymer, it combines transparency (up to 90% light transmission in clear grades) with exceptional impact strength—up to 250 times that of glass. Developed as a flame-retardant variant, it meets stringent safety standards for electronics and automotive components. Its molecular structure features carbonate groups linked by bisphenol A, contributing to its rigidity and stability. Unlike standard PC grades, PC-1220U incorporates additives to enhance UV resistance and reduce hydrolytic degradation, making it suitable for outdoor use.
Physical and Chemical Properties
PC-1220U exhibits a tensile strength of 60–70 MPa and a flexural modulus of 2.1–2.4 GPa, outperforming many engineering plastics. Its heat deflection temperature (HDT) ranges from 130°C to 140°C at 1.8 MPa load, ensuring dimensional stability under thermal stress. The material’s chemical resistance includes tolerance to dilute acids, alcohols, and aliphatic hydrocarbons, though it is susceptible to chlorinated solvents and strong alkalis. Its inherent flame retardancy (achieved without brominated additives) makes it a preferred choice for enclosures in electrical equipment.
Main Applications
In the automotive sector, PC-1220U is molded into headlamp lenses, dashboard components, and connector housings due to its optical clarity and vibration resistance. Electronics manufacturers use it for smartphone cases, power tool housings, and circuit breaker parts where UL94 compliance is mandatory. Construction applications include riot shields, skylight panels, and soundproof barriers. Its weatherability also suits outdoor LED lighting fixtures. Emerging uses include 3D printing filaments for functional prototypes requiring high durability.
Safety and Storage
While PC-1220U is non-toxic in solid form, processing at temperatures above 300°C may release trace bisphenol A vapors. Adequate workplace ventilation and PPE (gloves, masks) are recommended during injection molding or extrusion. Storage requires moisture-proof packaging to prevent hydrolysis, which can reduce molecular weight and mechanical properties. Pallets should be kept away from direct sunlight to avoid yellowing. Shelf life is typically 12 months in original packaging under recommended conditions.
B2B Procurement Guide
When sourcing PC-1220U, prioritize suppliers with ISO 9001 certification and batch-specific test reports. Key parameters to verify include melt flow index (MFI, typically 10–20 g/10 min at 300°C/1.2 kg) and yellowness index (below 2.0 for optical grades). Bulk orders (20+ metric tons) often qualify for 5–10% discounts. Consider regional logistics—some manufacturers offer localized compounding to reduce lead times. For customized formulations (e.g., color-matched or glass-filled), MOQs usually start at 1 ton.
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