Time-temperature superposition – Mechanics of Polymers

Bouncing balls: An illustration of the viscoelasticity and temperature dependent behavior of polymers

December 20, 2017 by admin

Why are we playing with rubber bouncing balls when we are kids ? Can metal or ‘plastic’ balls bounce as well ? And why do squash players warm up their balls before starting the game ? Let us have a little of recreation time bouncing balls and answer these questions. For that, some polymer balls are made in lab. The polymer is an...

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Network Polymer Time-temperature superposition viscoelasticity

Shape memory property of amorphous polymer networks. Mechanical model

December 1, 2016 by admin

The shape memory property of amorphous polymer networks is the result of two intrinsic properties of these materials: 1) The viscoelasticity and 2) the time-temperature superposition property. This can be proven by characterizing the material linear viscoelasticity and time-temperature superposition with DMA (dynamic mechanical analysis) tests and by introducing these properties in a TRS (thermo-theologically...

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Shape memory polymer Time-temperature superposition viscoelasticity