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Line 1: '''Polyether block amide''' or '''PEBA''' is a [[Elastomer\|thermoplastic elastomer]] (TPE). It is also known under the tradename of PEBAX®. It is a [[ block copolymer]] obtained by [[polycondensation]] of a carboxylic acid [[polyamide]] ([[Nylon 6\|PA6]], [[PA11]], [[PA12]]) with an [[alcohol]] termination polyether ([[PTMG]], [[Polyethylene glycol\|PEG]]). The general chemical structure is: HO:[[Hydrogen\|H]][[Oxygen\|O]] - (CO[[Carbon\|C]][[Oxygen\|O]] - '''[[Polyamide\|PA]]''' - CO[[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 silicons - for these characteristics: lower density among TPE, superior mechanical and dynamic properties (flexibility, impact resistance, energy return, fatigue resistance) and keeping these properties at low temperature (lower than -40°C), and good resistance against a wide range of chemicals.

Polyether block amide: Difference between revisions