doiSerbia

Impact of alumina particles on the morphology and mechanics of hybrid wood plastic composite materials

Perišić Srđan (Innovation Center of Faculty of Technology and Metallurgy, Belgrade)
Vuksanović Marija M. (Innovation Center of Faculty of Technology and Metallurgy, Belgrade)
Petrović Miloš (Innovation Center of Faculty of Technology and Metallurgy, Belgrade)
Radisavljević Anđela (Innovation Center of Faculty of Technology and Metallurgy, Belgrade)
Grujić Aleksandar (Institute of Chemistry, Technology and Metallurgy, Belgrade)
Jančić-Heinemann Radmila M. (Faculty of Technology and Metallurgy, Belgrade)
Radojević Vesna (Faculty of Technology and Metallurgy, Belgrade)

Hybrid composite panels of Wood-Plastic Composites (WPC) consisting of wood and poly (methyl methacrylate) (PMMA) were reinforced with alumina particles and made by “hot pressing” method. Alumina-based particles were made by sol-gel technique. The particles were characterized by the X-ray diffraction (XRD). The resulting alumina particles were modified with (3mercaptopropyl) trimethoxysilane (MPTMS), in order to obtain better mechanical properties of the composite relative to the composite with unmodified alumina particles. The aim of this work was to study the influence of composite structure and the moisture absorption on bending and the impact properties of the hybrid composite. The bending and impact tests revealed that modulus of elasticity and absorbed energy of deformation increased with modification of alumina and slightly decrease after moisture absorption.

Keywords: Alumina particles, Wood, PMMA, Water absorption, Mechanical properties

Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. TR34011