Efeitos da história térmica nas propriedades do polímero pet: um experimento para ensino de análise térmica

AUTOR(ES)
FONTE

Química Nova

DATA DE PUBLICAÇÃO

2011

RESUMO

Polyethilenetherephtalate (PET) is commonly used in manufacturing of beverage bottles representing a didactic appeal in thermal analysis education due to its presence in the student's day life. Additionally such polymer presents well defined thermal analytical curves and a well known thermal behavior. TGA curve is used to present the thermal stability. The thermal history effects in the thermal properties of a PET sample from a soft drink bottle are used to demonstrate the effect of different heating/cooling conditions on glass transition, melting, crystallization and crystalline degree using DSC curves.

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