Chi Mei Wonderlite PC-110L Hot Sale PC Resin

Chi Mei Wonderlite PC-110L is a general-purpose polycarbonate (PC) resin manufactured by Chi Mei Corporation using a non-phosgene transesterification process.

Physical Properties

Density: The density is 1.20 g/cc (0.0434 lb/in³), measured following ISO 1183 standard.
Melt Flow: The melt flow is 10 g/10 min under a 1.20 kg load at 300 °C (or 10 g/10 min under a 2.65 lb load at 572 °F), measured as Melt Volume Rate (ml/10 min) per ISO 1133.

Polymer Properties:

Base Material: Polycarbonate (PC)
Modification Features:
- Good flowability for easy processing, especially in injection molding.
- High impact strength, offering protection against impacts.
- Moderate heat resistance, suitable for a wide range of operating temperatures.
- Good chemical resistance to common substances.

Applications:

Vehicle Indicator Light Casings
- Application Overview: Wonderlite PC-110L is ideal for vehicle indicator light casings due to its excellent transparency, impact resistance, and dimensional stability.
- Design Considerations:
  - Optical Clarity: Ensure the mold surface is polished to a high gloss to maintain transparency and avoid light diffusion.
  - Wall Thickness: Design uniform wall thicknesses (1.5–3 mm) to prevent warping and ensure consistent light output.
  - Impact Resistance: Incorporate ribbed structures or reinforced edges to enhance durability against road vibrations and minor impacts.
  - Thermal Management: Account for heat generated by light sources (e.g., LED or halogen). Ensure sufficient ventilation in the design to prevent thermal deformation, leveraging PC-110L’s high heat resistance.
  - UV Exposure: While PC-110L is not UV-stabilized (unlike PC-110U), apply a UV-resistant coating for exterior applications to prevent yellowing.
- Processing Recommendations:
  - Injection Molding Parameters: Use a melt temperature of 280–320°C and a mold temperature of 80–120°C to optimize flow and minimize internal stresses.
  - Drying: Dry the resin at 120°C for 3–4 hours to remove moisture and prevent bubbles or surface defects.
  - Gating: Use a fan or edge gate to ensure even filling and reduce stress concentrations.
Consumer Electronics (Mouse Housings)
- Application Overview: The material’s clarity, impact resistance, and flowability make it suitable for computer mouse housings, where aesthetics and durability are critical.
- Design Considerations:
  - Ergonomics: Design smooth, contoured surfaces to enhance user comfort, leveraging PC-110L’s ability to form complex shapes.
  - Surface Finish: Specify a high-gloss or textured finish to enhance visual appeal and grip. PC-110L’s flowability supports intricate mold designs.
  - Impact Resistance: Ensure sufficient wall thickness (1.2–2.5 mm) to withstand drops and daily handling.
  - Component Integration: Design snap-fit features or screw bosses for easy assembly, utilizing the material’s dimensional stability to maintain tight tolerances.
  - Coloration: Use transparent or tinted grades for LED-backlit designs, ensuring light diffusion properties are tested during prototyping.
- Processing Recommendations:
  - Melt Temperature: Set at 290–310°C to balance flow and surface quality.
  - Injection Pressure: Use moderate pressure (80–120 MPa) to avoid flash while ensuring complete mold filling.
  - Cooling Time: Allow sufficient cooling (20–40 seconds) to prevent sink marks and ensure dimensional accuracy.
Food Packaging (Chocolate Container Boxes)
- Application Overview: Wonderlite PC-110L’s FDA compliance and transparency make it suitable for food-safe containers like chocolate boxes, where visual appeal and safety are paramount.
- Design Considerations:
  - Clarity: Design thin, transparent walls (1–2 mm) to showcase the product while maintaining structural integrity.
  - Sealing: Incorporate tight-fitting lids or snap-lock mechanisms to ensure airtight seals, leveraging PC-110L’s dimensional stability.
  - Food Safety: Ensure compliance with FDA regulations by avoiding additives or colorants not approved for food contact.
  - Stackability: Design containers with flat bases and reinforced edges to support stacking without deformation.
  - Hinge Design: For hinged lids, use living hinges with a thickness of 0.3–0.5 mm to ensure flexibility and durability.
- Processing Recommendations:
  - Drying: Dry at 120°C for 4 hours to eliminate moisture, critical for food-contact applications to avoid surface imperfections.
  - Mold Temperature: Maintain at 90–110°C to achieve high clarity and reduce residual stresses.
  - Cycle Time: Optimize cycle time (30–50 seconds) to balance productivity and quality, avoiding premature ejection.

Environmental and Regulatory Considerations

Eco-Friendly Production: PC-110L is manufactured using a non-phosgene process, reducing environmental impact and eliminating chlorinated solvents.
Regulatory Compliance: Complies with FDA, TSCA, RoHS, and UL flammability standards, making it suitable for food-contact and electronic applications.
UV Exposure: For outdoor applications, apply UV-resistant coatings, as PC-110L is not inherently UV-stabilized (unlike PC-110U).

Limitations and Recommendations

UV Stability: For prolonged outdoor exposure, consider PC-110U, which is UV-stabilized, or apply protective coatings.
Complex Geometries: PC-110L’s high flowability supports intricate designs, but avoid sharp corners to reduce stress concentrations.
Verification: Always consult Chi Mei Corporation or Material Data Center for the latest datasheet and verify material suitability for specific applications.

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