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High performance plastics are relatively expensive: The price per kilogram may be between $5 and $100 . The average value is slightly less than 15 US-Dollar/kg. [5] High-performance plastics are thus about 3 to 20 times as expensive as engineering plastics. [2]
HDPE is known for its high strength-to-density ratio. [4] The density of HDPE ranges from 930 to 970 kg/m 3. [5] Although the density of HDPE is only marginally higher than that of low-density polyethylene, HDPE has little branching, giving it stronger intermolecular forces and tensile strength (38 MPa versus 21 MPa) than LDPE. [6]
Core Molding Technologies mainly produced fiber reinforced plastics and plastic composites such as shielding, vehicle roofs, hoods and so on. Additionally, it provides services for manufacturing and product development, such as custom material formulations, composite mold construction, design for manufacturability and so on.
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LDPE has SPI resin ID code 4 Schematic of LDPE branching structure. Low-density polyethylene (LDPE) is a thermoplastic made from the monomer ethylene.It was the first grade of polyethylene, produced in 1933 by John C. Swallow and M.W Perrin who were working for Imperial Chemical Industries (ICI) using a high pressure process via free radical polymerization. [1]
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