Improvement in Abrasive Wear Resistence of Metallocenic Polypropylenes by Adding Siloxane based Polymers

A. SATTI; E. MOLINARI; A. FREITAS; W. TUCKART; C. GIACOMELLI; A. CIOLINO; E. VALLÉS

MATERIALS CHEMISTRY AND PHYSICS

ELSEVIER SCIENCE SA

Lugar: Amsterdam; Año: 2017 vol. 188 p. 100 - 108

0254-0584

In this paper, the abrasive wear behavior of different metallocenic isotactic propylene homo and copolymers is studied along with their mixtures with siloxane based polymers. These mixtures are prepared with poly(dimethylsiloxane) homopolymers of different molar masses, and a copolymer with -caprolactone. Wear rate is decreased in most of the cases, and its dependence with the molecular architecture of the additives is observed. The cristallinity degree of the samples, as well as their thermal, mechanical and rheological properties is also studied in order to infer the effect of the presence of the PDMS based additives in the mixtures.