TDS: Polycarbonate (PC)

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TECHNICAL DATA SHEET: KEY CHARACTERISTICS AND APPLICATIONS

Polycarbonate (PC)

General Information:

Product Name: Polycarbonate (PC)

Classification: Amorphous thermoplastic

Typical Properties:

Density: 1.20 – 1.22 g/cm³
Tensile Strength: 55 – 70 MPa
Elongation at Break: 50 – 120%
Tensile Modulus: 2,200 – 2,400 MPa
Vicat Softening Point: 145 – 150°C
Notched Izod Impact Strength: 600 – 850 J/m (exceptionally high impact strength)
Refractive Index: ~1.586
Light Transmission: 88 – 90% (clear grades)
Coefficient of Linear Thermal Expansion: 65 – 120 x 10^(-6) K^(-1)
Dielectric Constant: 2.9 (at 1 MHz)

Features and Benefits:

High Impact Strength: PC is known for its virtually unbreakable nature.
Optical Clarity: Offers transparency almost equivalent to glass.
High Temperature Resistance: Stable in broad temperature range.
UV Stability: Can be enhanced with coatings or additives, as raw PC is sensitive to UV radiation.
Flame Retardancy: Inherent flame resistance which can be enhanced with additives.
Dimensional Stability: Maintains shape and size under stress and heat.

Applications:

Optics: Eyewear lenses, optical discs, and light covers.
Building & Construction: Glazing, roofing, and security windows.
Automotive: Headlamp lenses, bumpers, and sunroofs.
Electronics: CDs, DVDs, Blu-ray discs.
Medical: Medical devices, housings, and drug delivery.
General Purpose: Safety helmets, face shields, and riot shields.

Processing Methods:

Extrusion (sheets, films, and profiles)
Injection Molding (components, housings, and high precision parts)
Blow Molding (containers and bottles)

Environmental Impact and Recycling:

PC can be recycled, although it’s essential to separate it from other plastics to maintain its unique properties.
When incinerated, PC releases CO₂ and water. However, due to the presence of the carbonate group, it can also release trace amounts of CO.
PC recycling is increasing with advances in technology and demand for sustainable materials.

Storage and Handling:

Store in a cool, dry place away from direct sunlight to avoid potential UV degradation.
Handle with care to avoid scratching, as while PC is impact resistant, it can be prone to scratching.

Safety Information:

PC is safe for various consumer and industrial applications.
When processing PC, proper ventilation is essential due to the potential release of bisphenol A (BPA) and other by-products. PC is flammable and should be kept away from open flames; when burned, it can release toxic fumes.

Note: This technical data sheet provides general information and typical values for PC. Actual specifications might differ based on the manufacturer and specific product grade. Always refer to manufacturer-specific data sheets for detailed information on a particular product.

Disclaimer: The information provided is “as is” without any warranties. Users are advised to conduct their own verification and testing for specific applications.