High density polyethylene

High - density polyethylene ( HDPE ) or polyethylene high-density (PEHD) is a polyethylene thermoplastic made from petroleum. Yes, I love polypropylene and polyester and silicones and all sorts of other plastics. But high - density polyethylene (or HDPE ) plastic has been courting my favor recently. Two major types of PE are in use in the films and flexible packaging sector – LDPE (Low Density) used generally for trays and heavier duty film such as long- life bags and sacks, poly tunnels, protective sheeting, food bags etc and HDPE ( High Density) which is used for most thin gauge carrier bags, fresh produce bags and . High - Density Polyethylene , usually shortened to HDPE or PEH is a plastic polymer with flexible properties which make it ideal for a wide range of applications.

Its unique properties can stand high temperatures.

It is also easily recyclable. The difference in high - density polyethylene and low-density polyethylene is the degree of branching. The mechanical properties change drastically when comparing high - density polyethylene to low density polyethylene. In general, the degree of branching in polyethylene determines its mechanical properties.

The material is also moisture, stain, and odor resistant, and is FDA approved for use in the food processing industry (mainly for cutting boards). High Density Polyethylene ( HDPE ) is a high molecular weight polyolefin material. Like all polyolefins, LDPE is nontoxic, non-contaminating, and exhibits a high degree of break resistance.

High density polyethylene has good chemical resistance and electrical properties , but it has a high thermal expansion and tends to fail under mechanical and thermal stress.

Glass reinforcement improves its thermal expansion, strength, rigidity and temperature resistance. As with most other polymer systems, the increase in . It has high heat resistance compared to low-density polyethylene and offers excellent performance such as being difficult to penetrate with organic solvents, etc. View Properties TablePDF (19KB) . Tipelin is a registered trade mark for medium and high density polyethylene grades manufactured by MOL Petrochemicals Co. MOL Petrochemicals unimodal medium and high density TIPELIN grades (MDPE and HDPE ) are produced by continuous suspension polymerization using low pressure catalytic process under . HDPE ( high density polyethylene ) is a rigi tough plastic that offers good chemical resistance and low moisture absorption. Compared to other polyethylene resins, HDPE resins are characterized by greater toughness, stronger mechanical properties, and higher service . Primary Use: Fusible, NSF certified Iron Pipe Size polyethylene pipe.

HDPE is stronger and more rigid than LDPE. Perfect for geothermal, golf irrigation, mining and industrial, oil and gas, and stock water applications requiring controlled outside diameter pipe. CenFuse carries a 50-year warranty.

HDPE has a low coefficient of friction and can be easily cut, machine welde and thermoformed for easy fabrication. Wholesale Distribution and Custom Fabrication of HDPE. Polyblend films were prepared from high - density polyethylene ( HDPE ) and poly(l -lactic acid) (PLLA) up to PLLA by the melt blending method in an extrusion mixer with post-extrusion blown film attachment.

J Biomed Mater Res B Appl Biomater. Effect of admixed high - density polyethylene ( HDPE ) spheres on contraction stress and properties of experimental composites. Ferracane JL(1), Ferracane LL, Braga RR.

Author information: (1)Department of Biomaterials and Biomechanics, Oregon Health .