polyethylene

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Related to Polyethylenes: Polyethene, Polymethylene

polyethylene

 [pol″e-eth´ĭ-lēn]
polymerized ethylene, (—CH2—CH2—)n, a synthetic plastic material, forms of which have been used in reparative surgery.
polyethylene glycol a polymer of ethylene oxide and water, available in liquid form (polyethylene glycol 300 or 400) or as waxy solids (polyethylene glycol 1540 or 4000), used in various pharmaceutical preparations as a water-soluble ointment base. Polyethylene glycol is also used as a laxative.

polyethylene

/poly·eth·y·lene/ (-eth´ĭ-lēn) polymerized ethylene, (—CH2—CH2—)n, a synthetic plastic material, forms of which have been used in reparative surgery.
polyethylene glycol  (PEG) a generic name for mixtures of condensation polymers of ethylene oxide and water, available in liquid form (polymers with average molecular weights between 200 and 700) or as waxy solids (average molecular weights above 1000); some are used as pharmaceutic aids, and p. glycol 3350 is used as a laxative.

polyethylene

[pol′ē·eth′ilēn]
a strong but flexible synthetic resin produced by the polymerization of ethylene. Polyethylene materials have been used in surgery.

Plastazote

thermoplastic expanded polyethylene plastic with good insulating properties, formed as heat-mouldable sheets in a variety of thicknesses (e.g. 2-25mm), and varying densities (e.g. soft and hard); used to make moulded orthoses Table 1
Table 1: Common thermoplastics (3mm thickness) used in orthoses manufacture
MaterialMoulding temperature (°C)Heating time (minutes)
Hexcelite723
Aquaplast1003
Pacton1105
Evazote1306
Plastozote1408
Polythene14010
Ortholene16514
Polypropylene16515
Rohadur17018
TL61 carbon fibre18020

Note: Heating times will need to be adjusted up or down for thicker or thinner materials.

polyethylene

polymerized ethylene (CH−CH2)n, a synthetic plastic material, forms of which have been used in reparative surgery.

polyethylene glycol
a polymer of ethylene oxide and water, available in liquid form (polyethylene glycol 300 or 400) or as waxy solids (polyethylene glycol 1540 or 4000), used in various pharmaceutical preparations as a water-soluble ointment base.
polyethylene glycol electrolyte solution
an osmotic solution used as a cathartic to empty the bowel in preparation for endoscopy. Abbreviated PEG. Called also GoLYTLEY.
polyethylene suture
one of the better monofilament fibers because of its good handling, low capillarity, high tensile strength and longevity in tissue. It has only moderate knot-holding capacity.
References in periodicals archive ?
Another limitation is the paucity of data of patients with the polyethylene wear-analysis software.
The results of this study show excellent wear rates in the subset of 26 patients with the new generation polyethylene (X3[R]).
There are few reports concerning the use of thin polyethylene liners; however, most investigators advise against their use.
8 millimeter) polyethylene can provide successful results in concurrent use with large diameter femoral heads at short-term follow-up at a minimum of 2 years.
Femoral head size and wear of highly cross-linked polyethylene at 5 to 8 years.
Radiostereometric analysis comparison of wear of highly cross-linked polyethylene against 36- vs 28-mm femoral heads.
Catastrophic failure of the polyethylene liner of uncemented acetabular components.
Rim cracking of the cross-linked longevity polyethylene acetabular liner after total hip arthroplasty.
Determination of polyethylene wear in total hip replacements with use of digital radiographs.
Comparison of two and three-dimensional computerized polyethylene wear analysis after total hip arthroplasty.
In addition, the company operates a joint-venture polyethylene facility in Singapore, with gross capacity of 860 million pounds per year (430 million pounds net), and recently started up a joint-venture facility in China, with gross capacity of 220 million pounds per year (88 million pounds net).
to develop a new petrochemical complex in Qatar that will feature a 1 billion pounds-per-year (500 million pounds net) polyethylene facility.