Skip to main content
Customer publications

Two processes of α-phase formation in polypropylene at high supercooling

Schawe, Jürgen E. K.; Vermeulen, Paul A.; van Drongelen, Martin

By March 12th, 2019No Comments

Thermochimica Acta, 2015,

DOI:10.1016/j.tca.2015.08.014

Abstract

The non-isothermal and isothermal crystallization of different types of commercial polypropylenes (PP) are investigated by fast scanning calorimetry and wide-angle X-ray scattering. Typically, PP shows two different crystallization processes: below 55 °C the mesophase formation and at higher temperatures the α-phase formation. Here we report the first observation of an additional crystallization process in some PP-types. It is observed between 45 °C and 75 °C, and is understood as a consequence of an additional nucleation of α-phase crystals.

Visit the full article

Back to the overview