What is the Glass Transition Temperature of PVC Film and TPU Film?

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The glass transition temperature is an important index of the heat resistance of the high polymer material.

The glass transition temperature of PVC resin material(Polyvinyl chloride) is 77-90 ^oC, but not the same as plastic PVC film or PVC sheet. The application of plasticizer in the PVC film production will low down the glass transition temperature. 

The glass transition temperature of PVC film is 75~105^oC.

The glass transition temperature of TPU film is 80 ^oC, TPU film brittle temperature lower than -62 ^oC.

The high polymer material changes from a highly elastic state to a glassy state at the glass transition temperature, which is usually expressed as Tg, which varies with the method and conditions of the measurement.

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