Particulate Filled Composite Plastic Materials from Recycled Glass Fibre Reinforced Plastics

  • Aare ARUNIIT Tallinn University of Technology
  • Jaan KERS Tallinn University of Technology
  • Dmitri GOLJANDIN Tallinn University of Technology
  • Mart SAARNA Tallinn University of Technology
  • Kaspar TALL Tallinn University of Technology
  • Jüri MAJAK Tallinn University of Technology
  • Henrik HERRANEN Tallinn University of Technology
Keywords: recycling, glass fibre reinforced plastic scrap, disintegrator milling, plastic powder


Glass fibre reinforced plastic (GFRP) scrap consisted of acrylic plastic with glass fibre reinforcement in polyester resin matrix was used in our experiments. The multi-functional DS-series disintegrator mills were used for mechanical processing of GFRP scrap. Preceding from the results characterization of the milled powder particles size, shape and other properties the numerical algorithm for modelling of the density of the new filler material was developed. The main goal of the current study is to develop new particulate filled composite plastic material from recycled GFRP scrap. With recovered plastic powder material the higher filler content in polyester resin matrix can be achieved. The new composite is modelled on basis of the properties of new material. Such an approach requires tests of the new material. The considered target characteristics of the new material are the tensile strength, elongation at break and the cost. The multicriteria optimization problem has been formulated and solved by use of physical programming techniques and Pareto optimality concept. The designed new composites were manufactured in different mixing ratios of powder and binder agent. The strength and stiffness properties of new composite material were tested.