HDPE has SPI resin ID code 2

High-density polyethylene (HDPE) is a polyethylene thermoplastic made from petroleum. It takes 1.75 kilograms of petroleum (in terms of energy and raw materials) to make one kilogram of HDPE. Image File history File links Resin-identification-code-2-HDPE.svg‎ Self made from PNG. File historyClick on a date/time to view the file as it appeared at that time. ... Image File history File links Resin-identification-code-2-HDPE.svg‎ Self made from PNG. File historyClick on a date/time to view the file as it appeared at that time. ... The Society of the Plastics Industry developed symbols for plastics so that they could be recycled easier. ... Sorted household plastic waiting to be hauled away for reprocessing. ... This article does not cite any references or sources. ... For other uses, see Plastic (disambiguation). ... Pumpjack pumping an oil well near Lubbock, Texas Ignacy Łukasiewicz - inventor of the refining of kerosene from crude oil. ... “Kg” redirects here. ...

Properties

HDPE has little branching, giving it stronger intermolecular forces and tensile strength than lower density polyethylene. It is also harder and more opaque and can withstand somewhat higher temperatures (120 °C for short periods, 110 °C continuously). High-density polyethylene, unlike polypropylene, cannot withstand normally required autoclaving conditions. The lack of branching is ensured by an appropriate choice of catalyst (e.g. Ziegler-Natta catalysts) and reaction conditions. In physics, chemistry, and biology, intermolecular forces are forces that act between stable molecules or between functional groups of macromolecules. ... Tensile strength isthe measures the force required to pull something such as rope, wire, or a structural beam to the point where it breaks. ... This article does not cite any references or sources. ... For other uses, see Temperature (disambiguation). ... It has been suggested that this article or section be merged into Catalysis. ... A Ziegler-Natta catalyst is a reagent used in the production of unbranched, stereoregular vinyl polymers. ... For other uses, see Chemical reaction (disambiguation). ...

Applications

HDPE is resistant to many different solvents and has a wide variety of applications, including: For other uses, see Solvent (disambiguation). ...

• Containers
  • Tupperware
  • Laundry detergent bottles
  • Milk jugs
  • Fuel tanks for vehicles
• Plastic bags
• Containment of certain chemicals
• Chemical-resistant piping systems
• Heat-resistant fireworks display mortars
• Geothermal heat transfer piping systems
• Natural gas distribution pipe systems
• Water pipes, for domestic water supply.
• Coax cable inner insulators (dielectric insulating spacer)
• Root Barrier
• Corrosion Protection for Steel Pipelines.
• Snowboard rails/ boxes.
• Bottles, suitable for use as refillable bottles.

HDPE is also used for cell liners in subtitle D sanitary landfills, wherein large sheets of HDPE are either extrusion or wedge welded to form a homogeneous chemical-resistant barrier, preventing the pollution of soil and groundwater by the liquid constituents of solid waste. Look up container in Wiktionary, the free dictionary. ... The Tupperware Corporation NYSE: TUP develops and sells Tupperware branded products. ... This article or section does not adequately cite its references or sources. ... A glass of cows milk. ... For other uses, see Tank (disambiguation). ... This does not adequately cite its references or sources. ... A chemical compound is a chemical substance of two or more different chemically bonded chemical elements, with a fixed ratio determining the composition. ... Piping is used to convey fluids (usually liquids and gases but sometimes loose solids) from one location to another. ... For other uses, see Fireworks (disambiguation). ... Mortar has several meanings: A mortar is a vessel used to contain a substance which is then ground into a powder and/or mixed with a pestle. ... Geothermal heating is a method of heating and cooling a building. ... For other uses, see Natural gas (disambiguation). ... A system of copper water tubes used in a radiator heating system. ... Coaxial cable is an electrical cable consisting of a round, insulated conducting wire, surrounded by an insulating spacer, surrounded by a cylindrical conducting sheath, usually surrounded by a final insulating layer. ... This article or section is in need of attention from an expert on the subject. ... A dielectric, or electrical insulator, is a substance that is highly resistant to electric current. ... For the hazard, see corrosive. ... For other uses, see Steel (disambiguation). ... A snowboard with strap-in bindings A snowboard is a board ridden in snowboarding to descend a snow-covered slope. ... Bottles is a New Zealand drinking game, commonly practiced by students. ... Landfill is a waste disposal site for the deposit of the waste onto or into land (i. ... Extruded aluminium; slots allow bars to be joined with special connectors. ... It has been suggested that Pollutant be merged into this article or section. ... Loess field in Germany Surface-water-gley developed in glacial till, Northern Ireland Technically, soil forms the pedosphere: the interface between the lithosphere (rocky part of the planet) and the biosphere, atmosphere, and hydrosphere. ... Missing main definition------ someone add if you know it please. ... Mixed municipal waste, Hiriya, Tel Aviv Municipal solid waste (MSW) is a waste type that includes predominantly household waste (domestic waste) with sometimes the addition of commercial wastes collected by a municipality within a given area. ...

One of the largest uses for HDPE is wood plastic composites, with recycled polymers leading the way. Wood-plastic composite is a composite material lumber or timber made of recycled plastic and wood wastes. ...

See also

• Linear low density polyethylene
• Low density polyethylene
• Resin identification code
• Ultra high molecular weight polyethylene

Linear low density polyethylene (LLDPE) is a substantially linear polymer, with significant numbers of short branches, commonly made by copolymerization of ethylene with longer-chain olefins. ... LDPE has SPI resin ID code 4 Low-density polyethylene (LDPE) is a thermoplastic made from oil. ... Sorted household plastic waiting to be hauled away for reprocessing. ... Ultra high molecular weight polyethylene (UHMWPE), also known as high modulus polyethylene (HMPE) or high performance polyethylene (HPPE), is a thermoplastic. ...

External links

• HDPE for Robotics