Extremes of apparent and tap densities of recovered GFRP filler materials

The multi-functional DS-series disintegrators have been utilized for reprocessing of the glass fibre reinforced plastic (GFRP) scrap. The technology of milling by the disintegrator devices is compared with the existing advanced technologies and the advantages of disintegrator milling are pointed out. Preceding from the results of size, shape and properties analysis of the milled powder particles the numerical algorithm for modelling of the density of the polymethylmetacrylate (PMMA) powder is developed. Multicriteria optimisation problem has been formulated and solved by employing Pareto optimality concept and physical programming techniques.