Effect of High Content of Deinking Paper Sludge (DPS) on the Reinforcement of HDPE


Deinking paper sludge (DPS)/high density polyethylene (HDPE) composites with and without coupling agent (3 % of maleated polyethylene (MAPE)) were manufactured by twin-screw extrusion followed by injection molding with high percentages of DPS (0, 20, 30 and 40 %). The effects of DPS content and MAPE on the mechanical, thermal, and morphological properties of the DPS/HDPE composites were investigated. Increasing DPS content in composites increased the tensile and flexural modulus (E; MOE), tensile and flexural strength (Rm; MOR), while decreased elongation at break and Un-notched impact resistance due to a poor adhesion between the DPS and HDPE. The addition of DPS also improved the thermal stability and increased the composites crystallinity. High content of DPS (40 %) and 3 % MAPE achieved good interfacial adhesion between fibres of DPS and HDPE. Therefore, an increase is observed for Rm, MOR, ductility, and impact toughness.

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This study has been supported by the Tunisian Ministry of Higher Education and Scientific Research, the Canada Research Chairs Program and the Natural Sciences and Engineering Research Council of Canada (NSERC). The authors thank the Research Center on Renewable Materials (CRMR) for the structural analysis of composites with FTIR. We also thank William Belhadef for his technical support.

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Correspondence to Manel Haddar.

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Haddar, M., Elloumi, A., Koubaa, A. et al. Effect of High Content of Deinking Paper Sludge (DPS) on the Reinforcement of HDPE. J Polym Environ 25, 617–627 (2017). https://doi.org/10.1007/s10924-016-0837-9

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  • Deinking paper sludge
  • Maleated polyethylene
  • DPS/HDPE composites
  • Thermal characterization
  • Mechanical properties