High Density Polyethylene Plastics

Not only is it one of the most versatile of plastics used in everything from hard hats to house wraps it s also widely recycled in both its rigid form e g containers and flexible form e g bags.

High density polyethylene plastics.

The material cannot be cemented but it is easily welded with a plastic welder. What is high density polyethylene. C high density linear polyethylene specific gravity 0 941 0 965. Hdpe is a high impact strength and high density polyethylene.

High density polyethylene hdpe or polyethylene high density pehd is a thermoplastic polymer produced from the monomer ethylene it is sometimes called alkathene or polythene when used for hdpe pipes. High density polyethylene is a plastic made from ethane. But high density polyethylene or hdpe plastic has been courting my favor recently. It is used to make bottles jugs and other containers used as short term storage for milk detergent and bleach.

The high molecular weight makes it a very tough material but results in less efficient packing of the chains into the crystal structure as evidenced by densities of less than high density polyethylene for example 0 930 0 935 g cm 3. Hdpe can be translucent or opaque and the opaque varieties are stronger. It is synthesized using metallocene catalysts and ethane units resulting is structure where ethane units are bonded together resulting in uhmwpe structure. This sheet can be heat formed shaped and welded to fabricate ducts hoods and much more.

It is coded as a number 2 plastic for recycling. High density poly ethylene hdpe is a thermoplastic polymer made from petroleum. It can be cut with a carbide tipped saw blade and drilled with regular metal bits. Hdpe has little branching giving it stronger intermolecular forces and tensile strength than lower density polyethylene.

With a high strength to density ratio hdpe is used in the production of plastic bottles corrosion resistant piping geomembranes and plastic lumber. The major advantages of polyethylenes are light weight excellent chemical resistance low moisture absorption good impact strength excellent low temperature properties superb dielectric properties and low coefficient of friction. High density polyethylene hdpe sheet. Uhmwpe can be made through any catalyst technology although ziegler catalysts are most common.

As one of the most versatile plastic materials around hdpe plastic is used in a wide variety of applications including plastic bottles milk jugs shampoo bottles bleach bottles cutting boards and piping known for its outstanding tensile strength and large strength to. Hdpe has excellent tensile strength energy absorption abrasion resistance and resistance to stress cracks.