Polycarbonate can be injection molded, extruded, molded, blow molded, thermoformed, printed, bonded, coated and machined. The most important processing method is injection molding.
It must be pre-dried before molding, the moisture content should be less than 0.02%, and the processing of trace moisture at high temperature will make
The pc tube product 3 produces white turbid color, silver wire and air bubbles, and the PC has a considerable forced high elastic deformation ability at room temperature.
The impact toughness is high, so cold forming, cold drawing, cold rolling and other cold forming processes can be performed. The molecular weight of the PC for extrusion should be greater than 30,000, and a graded compression type screw should be used.
With a length to diameter ratio of 1:18~24 and a compression ratio of 1:2.5, high-quality, high-transparent bottles can be formed by extrusion blow molding, injection-blowing, injection-pull-blowing. There are many kinds of PC alloys, which improve the viscosity of the PC melt (processability) and the stress cracking of the product.
PC forms alloys or blends with different polymers to improve material properties.
Specifically, there are PC/ABS alloy, PC/ASA alloy, PC/PBT alloy, PC/PET alloy, PC/PET/elastomer blend, PC/MBS blend, PC/PTFE alloy, PC/PA alloy, and the like.
Benefits of two material properties, and reduce costs, such as PC / ABS alloy, PC mainly contributes to high heat resistance, good toughness and impact strength, high strength, flame retardancy, ABS can improve formability, Apparent quality, reduced density.
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