What are the properties of UHMWPE?

UHMWPE has good mechanical, physical and tribological properties, such as: extreme hardness and durability, good chemical resistance, abrasion resistance, impact resistance, being easy to fabricate, a very low coefficient of friction and being a non-polarity polymer [6–12].

What is the difference between UHMW and UHMWPE?

The key difference between UHMW and HDPE is that UHMW contains long polymer chains with very high molecular weights whereas HDPE has a high strength-to-density ratio. UHMW stands for Ultra High Molecular Weight polyethylene. It is also denoted by UHMWPE. The term HDPE stands for High Density Polyethylene.

What is the durometer of UHMW?

D2240
UHMW (Ultra High Molecular Weight Polyethylene)

Specification	Test	Value
Hardness, Durometer (Shore “D” scale)	D2240	68
Hardness, Rockwell (Scale as noted)	D785
Izod Impact, Notched @ 73°F	D256 Type A	No Break
Coefficient of Friction (Dry vs Steel) Static	PTM55007	.15-.20

What is the Young’s modulus of plastic?

Young’s modulus for a perfectly plastic body is zero.

What does UHMWPE mean?

UHMW-PE stands for Ultra High Molecular Weight Polyethylene. It is the highest quality polyethylene (PE) available, engineered for tough jobs and a wide range of applications. It delivers savings in a number of difficult applications. Ultra High Molecular Weight is the secret of this polymer’s unique properties.

Is UHMWPE a crystalline?

UHMWPE is a linear (non-branching) semi-crystalline polymer which can be described as a two phase composite of crystalline and amorphous phases. The crystalline phase contains chains folded into highly oriented lamellae, with the crystals being orthorhombic in structure (Lin and Argon 1994).

What is Uhmwpe used for?

UHMWPE has high wear-resistance, toughness, durability, and biocompatibility. Therefore, it is commonly used as a bearing material with ceramic or metallic counter surfaces in joint arthroplasty [8,9] UHMWPE’s significance for achieving outstanding performance in total joint arthroplasties is unquestionable [10,11].

How is Uhmwpe made?

UHMWPE powders have been produced by Ruhrchemie (Ticona) using the Ziegler process. The main ingredients for producing UHMWPE are ethylene (a reactive gas), hydrogen, and titanium tetra chloride (the catalyst). The polymerization takes place in a solvent used for mass and heat transfer.

What is the density of UHMW plastic?

UHMW Polyethylene Material Properties