Source: J.Brandrup, E. H. Immergut & E.A. Grulke, Polymer Handbook Fourth edition, ISBN0-471-48171-8
Medium-density polyethylene (MDPE) is a type of polyethylene defined by a density range of 0.926–0.940 g/cm3.[1] It is less dense than HDPE, which is more common.
MDPE can be produced by chromium/silica catalysts, Ziegler-Natta catalysts or metallocene catalysts. MDPE has good shock and drop resistance properties. It also is less notch sensitive than HDPE. Stress cracking resistance is better than that of HDPE. MDPE is typically used in gas pipes and fittings, sacks, shrink film, packaging film, carrier bags, and screw closures.[2]
In the United Kingdom, black (or blue) MDPE is often used for water and waste water plumbing, and may also be referred to as 'black alkathene.'
medium, density, polyethylene, mdpedensity, cm3young, modulus, modulus, tensile, modulus, mpatensile, strength, mpaelongation, break, brittleness, temperature, cvicat, cspecific, heat, ksource, brandrup, immergut, grulke, polymer, handbook, fourth, edition, is. MDPEDensity 0 926 0 940 g cm3Young modulus E modulus Tensile modulus 172 379 MPaTensile strength st 12 4 19 3 MPaElongation break 100 150 Brittleness low temperature 118 CVicat 99 124 CSpecific heat c 1 916 kJ kg KSource J Brandrup E H Immergut amp E A Grulke Polymer Handbook Fourth edition ISBN 0 471 48171 8Medium density polyethylene MDPE is a type of polyethylene defined by a density range of 0 926 0 940 g cm3 1 It is less dense than HDPE which is more common MDPE can be produced by chromium silica catalysts Ziegler Natta catalysts or metallocene catalysts MDPE has good shock and drop resistance properties It also is less notch sensitive than HDPE Stress cracking resistance is better than that of HDPE MDPE is typically used in gas pipes and fittings sacks shrink film packaging film carrier bags and screw closures 2 In the United Kingdom black or blue MDPE is often used for water and waste water plumbing and may also be referred to as black alkathene See also editCross linked polyethylene PEX High density polyethylene HDPE Electrofusion Linear low density polyethylene LLDPE Low density polyethylene LDPE Plastic recycling Stretch wrap Ultra high molecular weight polyethylene UHMWPE References edit Polyethylene Polyethylene Fittings Medium Density Polyethylene MDPE Archived 2011 08 23 at the Wayback MachineExternal links editMedium Density Polyethylene Specialty Rinse Tanks MDPE UK Supplier nbsp This article about polymer science is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Medium density polyethylene amp oldid 1176306174, wikipedia, wiki, book, books, library,
