Use of Cellulose-Containing Fillers in Composites with Polypropylene

  • Marianna LAKA Latvian State Institute of Wood Chemistry
  • Svetlana CHERNYAVSKAYA Latvian State Institute of Wood Chemistry
  • Galia SHULGA Latvian State Institute of Wood Chemistry
  • Viktor SHAPOVALOV Institute of Mechanics of Metal-Polymer Systems
  • Andrej VALENKOV Institute of Mechanics of Metal-Polymer Systems
  • Marina TAVROGINSKAYA Institute of Mechanics of Metal-Polymer Systems

Abstract

The composites, containing recycled polypropylene and fillers, obtained from different lignocellulosics by the thermocatalytic destruction method, were investigated. Birch sawdust, newsprint wastes, cotton residues and wood bleached sulphate pulp were used as raw materials for obtaining fillers. The indices of mechanical properties (tensile strength, modulus of elasticity, deformation at break, shear modulus, toughness, twisting moment) of the composites' samples were determined. It has been found that the obtained composites have relatively good mechanical properties. Better results were obtained, using fillers from sawdust and wood pulp. After treating the fillers with rapeseed oil, their water vapour sorption and water retention value (WRV) decreased. In this case, the strength of the composites was higher.

http://dx.doi.org/10.5755/j01.ms.17.2.484

Section
POLYMERS AND COMPOSITES