Compressive Properties of Micro-spherical SiO2 Particles

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussavertaisarvioitu



  • Borealis Polymers Oy


Micron-sized, spherical SiO2 particles are important various industrial applications, such as in heterogeneous catalyst preparation. In particular, many of industrially relevant olefin polymerization catalysts are currently prepared using micro-spherical silica as catalyst support. In large-scale catalytic polyolefin production, the quality of the final product, as well as the process efficiency is crucially dependent on overall consistency, quality, physico-chemical properties of the catalyst. As the catalyst particle experiences various stresses during the polymer particle growth, mechanical properties of catalyst play a key role in its performance in the polymerization process. However, there is currently a lack of experimental mechanical property measurements of micron-sized, spherical SiO2 particles relevant for the polyolefin catalyst production.
In this work, compressive properties of commercial porous micro-spherical silicas were studied using a quasi-static micro-compression method. The method includes compressing single, micron-sized particles in controlled loading conditions. From the measurements, the compressive elastic-plastic properties of these particles can be determined.


OtsikkoAdvances in Powder and Ceramic Materials Science
TilaJulkaistu - 2020
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaTMS Annual Meeting and Exhibition - San Diego, Yhdysvallat
Kesto: 23 helmikuuta 202027 helmikuuta 2020
Konferenssinumero: 149


NimiThe Minerals, Metals & Materials Series
KustantajaSpringer International Publishing
ISSN (painettu)2367-1181


ConferenceTMS Annual Meeting and Exhibition
KaupunkiSan Diego

ID: 38075019