Bed temperature: 90°C or more

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The key parameters of injection molding are as follows

Melting temperature: 280-320°C
Mold temperature: 80-100°C
Molding shrinkage: 0.5-0.8%
Injection molding of PC swimming goggles
Injection molding of PC swimming goggles
Extrusion
Extrusion is another widely used process for shaping polycarbonate. In this method, the molten polymer is forced through a shaped cavity, which helps it achieve the desired profile. The material cools and solidifies, retaining its new shape. Manufacturers commonly use extrusion to produce sheets, profiles, and pipes. Recommended settings are as follows:

Extrusion temperature: 230-260°C
L/D ratio: 20-25
Blow molding and thermoforming
Blow molding and thermoforming are techniques used to create hollow PC parts, such as bottles and containers. In blow molding, the process involves shaping molten polymer into a hollow tube and then inflating it to fit a mold. Thermoforming involves heating a sheet of polycarbonate until it becomes flexible and then forming it over a mold.

3D printing
Polycarbonate (PC) is a great choice for 3D printing because hot database of its strength and temperature resistance. When 3D printing with PC, it is important to use a high print temperature (260-300°C) and a heated bed (90°C or higher) to ensure good adhesion and prevent warping.

The strength and durability of polycarbonate make it an ideal material for the production of functional prototypes and end-use parts:

Printing temperature: 260-300°C
Print speed: 30-60 mm/s
Improving Polycarbonate (PC) Performance Through Additives and Blends
Reinforced PC
Reinforcing polycarbonate with glass or carbon fibers significantly improves its mechanical properties, making it suitable for high-stress applications. These reinforced grades offer improved tensile modulus, flexural strength, and tensile strength, expanding the material's usefulness in demanding environments.

UV stabilizers and flame retardants
The addition of UV stabilizers helps protect PC plastic from ultraviolet rays, improving its longevity in outdoor applications. Flame retardants, such as halogenated or phosphorous-based additives, improve the fire resistance of polycarbonate, making it safer for use in electronics and other applications where fire safety is critical.

Mixed polycarbonate grades
Blending polycarbonate with other thermoplastics, such as ABS or polyester, allows its properties to be optimized for specific applications. For example, PC/ABS blends combine the toughness and heat resistance of polycarbonate with the elasticity and processability of ABS, creating a material with a balanced combination of properties.