Polyether block amide: Difference between revisions

Revision as of 13:25, 29 January 2011

Revision as of 00:28, 21 December 2011

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{{Unreferenced|date=March 2008}}

'''Polyether block amide''' or '''PEBA''' is a [[thermoplastic elastomer]] (TPE). It is also known under the tradename of PEBAX® ([[Arkema]]). It is a [[block copolymer]] obtained by [[polycondensation]] of a carboxylic acid [[polyamide]] ([[Nylon 6|PA6]], [[PA11]], [[polyamide 12|PA12]]) with an [[alcohol]] termination polyether ([[PTMG]], [[Polyethylene glycol|PEG]]). The general chemical structure is:

:[[Hydrogen|H]][[Oxygen|O]] - ([[Carbon|C]][[Oxygen|O]] - '''[[Polyamide|PA]]''' - [[Carbon|C]][[Oxygen|O]] - [[Oxygen|O]] - '''[[Polyether|PE]]''' - [[Oxygen|O]])_n - [[Hydrogen|H]]

PEBA is a high performance thermoplastic elastomer. It is used to replace common elastomers – thermoplastic polyurethanes, polyester elastomers, and silicones - for these characteristics: lower density among TPE, superior mechanical and dynamic properties (flexibility, [[Brittleness|impact resistance]], [[Elasticity (physics)|energy return]], [[Fatigue (material)|fatigue resistance]]) and keeping these properties at low temperature (lower than -40 °[[Celsius|C]]), and good resistance against a wide range of chemicals. It is sensitive to [[UV degradation]], however.

==Applications==

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[[Category:Elastomers]]

[[Category:Copolymers]]

[[Category:polymersPolymers]]