Medium density polyethylene
- Medium density polyethylene
Medium Density Polyethylene, or MDPE is a type of Polyethylene defined by a density range of 0.926 - 0.940 g/cm3. 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 is defined by a density range of 0.926–0.940 g/cm3. 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 HDPE. MDPE is typically used in gas pipes and fittings, sacks, shrink film, packaging film, carrier bags and screw closures.
For more information on Polyethylene in general, see Polyethylene.
Wikimedia Foundation.
2010.
Look at other dictionaries:
Medium-density polyethylene — MDPE Density 0.926 0.940 g/cm3 Young modulus/ E modulus/ Tensile modulus 172–379 MPa Tensile strength(σt) 12.4–19.3 MPa Elongation @ break 100–150% … Wikipedia
High-density polyethylene — HDPE has SPI resin ID code 2 High density polyethylene (HDPE) or polyethylene high density (PEHD) is a polyethylene thermoplastic made from petroleum. It takes 1.75 kilograms of petroleum (in terms of energy and raw materials) to make one… … Wikipedia
Low-density polyethylene — LDPE has SPI resin ID code 4 Low density polyethylene (LDPE) is a thermoplastic made from petroleum. It was the first grade of polyethylene, produced in 1933 by Imperial Chemical Industries (ICI) using a high pressure process via free radical… … Wikipedia
Polyethylene — or polythene (IUPAC name poly(ethene)) is a thermoplastic commodity heavily used in consumer products (notably the plastic shopping bag). Over 60 million tons of the material are produced worldwide every year. Description Polyethylene is a… … Wikipedia
Polyéthylène — Général … Wikipédia en Français
Polyethylene — Polyéthylène Polyéthylène Général … Wikipédia en Français
Cross-linked polyethylene — PEX redirects here. For other uses, see Pex (disambiguation). Cross linked polyethylene, commonly abbreviated PEX or XLPE, is a form of polyethylene with cross links. It is formed into tubing, and is used predominantly in hydronic radiant heating … Wikipedia
Ultra-high-molecular-weight polyethylene — (UHMWPE or sometimes shortened to UHMW), also known as high modulus polyethylene (HMPE) or high performance polyethylene (HPPE), is a subset of the thermoplastic polyethylene. It has extremely long chains, with molecular weight numbering in the… … Wikipedia
Polyethylene terephthalate — PETE redirects here. For the first name, see Peter (disambiguation). For other uses, see Pete (disambiguation). Polyethylene terephthalate fibre IUPAC name … Wikipedia
9002-88-4 — Polyéthylène Polyéthylène Général … Wikipédia en Français
