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I need help – can someone tell me what MPDE stands for as an abbreviation in the chemical industry?
Where does the poster use Medium Density Polyethylene?
Medium-density polyethylene: Properties – It is a type of polyethylene whose density, the number of branches in its molecular structure, and overall performance lie between those of LDPE and HDPE; its density ranges from 0.926 to 0.940 g/cm3. Crystallinity is 70% to 75%. The tensile strength ranges from 12 to 37.37 MPa, the notched impact strength of the cantilever beam is >853 J/m. It resists environmental stress cracking (F50) for 100–1000 hours, has a embrittlement temperature of -60°C, a heat distortion temperature of 49–74°C at 0.45 MPa, and a long-term service temperature of 116–140°C. In industrial production, processes such as the slurry method, solution method, vapor phase method, and high-pressure method are used, and it is synthesized through the polymerization of ethylene. The product is used for high-speed molding of various types of bottles, high-speed automatic packaging films, various injection-molded products, rotomolded items, insulation layers for wires and cables, waterproof materials, water pipes, gas pipes, and more. This post was last edited by zhenghemqx on 2009-3-27 17:57]
It should be MDPE; similar types include LLDPE (linear low-density polyethylene), HDPE (high-density polyethylene), and FDPE (full-density polyethylene).