Polyether ether ketone: Difference between revisions

Revision as of 13:47, 27 October 2006

Revision as of 00:27, 26 November 2006

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<tr><td>notch test</td><td>55 [[kilo|k]][[joule|J]]/[[meter|m]]<sup>2<sup></td></tr>

<tr><td>[[Glass transition temperature|Glass temperature]]</td><td>143130-150 °[[Degree Celsius|C]] and 260-290 º[[Degree Celsius|C]]</td></tr>

<tr><td>[[melting point]]</td><td>334~350 °[[Degree Celsius|C]]</td></tr>

<tr><td>Vicat B{{citation needed}}</td><td>-</td></tr>

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PEEK is a [[thermoplastic]] with extraordinary mechanical properties. The Young's modulus is 3.6 GPa and its tensile strength 170 MPa.

PEEK is partially crystalline, and hasis ahighly unusual in exhibiting two [[glass transition temperature|glass transition temperatures]] ofat 143around 140 °C and around 275 ºC, adepending meltingon temperaturecure cycle and precise formulation. PEEK melts at ofaround 334350 °C and is highly resistant to thermal degradation. The material is also resistant to both organic and aqueous environments, and is used in bearings, piston parts, pumps, compressor plate valves, and cable insulation applications.

PEEK is considered an advanced biomaterial used in medical implants, often in reinforced format using biocompatable fibre fillers such as carbon. Also in carbon fibre reinforced form, PEEK has come under consideration as an aerospace structural material due to its high strength-to-weight ratio.