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Other applications, including polycarbonate sheets, may have the anti-UV layer added as a special coating or a coextrusion for enhanced weathering resistance. Polycarbonate is also used as a printing substrate for nameplate and other forms of industrial grade under printed products. The polycarbonate provides a barrier to wear, the elements ...
Although single layer polycarbonate sheeting is more flexible than polycarbonate in twinwall configuration, it still retains significant advantages over alternative materials, including glass. A typical 6mm sheet has a density of 0.72 g/cm^2 [6] and a thermal insulation R value of 0.3 m^2°C/W, while allowing 80% of visible light pass through. [7]
Sheet thicknesses greater than 3 mm (0.120 inches) are usually delivered to the forming machine by hand or an auto-feed method already cut to final dimensions. Heavy, or thick-gauge, cut sheet thermoforming applications are primarily used as permanent structural components.
Note that the sheet resistance quoted above depends on the thickness of the layer of material, and the value is the resistance of a square of the material for a current flowing from one edge to the opposite edge.
The plastics industry manufactures polymer materials—commonly called plastics—and offers services in plastics important to a range of industries, including packaging, building and construction, electronics, aerospace, manufacturing and transportation.
SABIC was founded in 1976 by royal decree to convert oil by-products into useful chemicals, polymers, and fertilizers. [9] The first chairman of the company was Ghazi Abdul Rahman Al Gosaibi, the Minister of Industry and Electricity, and the first CEO was Abdulaziz bin Abdullah Al Zamil.