Selected thermal properties of polyethylene waxes

Abstract

Selected thermal properties of different types of polyethylene waxes, i.e. by-products formed in ethylene low-pressure polymerization process, physically and chemically modified waxes are presented in the study. Temperatures of phase transitions and relevant thermal effects were defined using DSC method. Additionally, drop point and penetration of waxes were determined. It was established that fractionation of waxes (physical modification) causes increase in their crystallinity and oxidation (chemical modification) decreases ability for crystallization.