Utilization of side streams from paper industry as fillers in polypropylene composites

Lisa Wikström (Corresponding Author), Juha Hakala, Elina Saarivuori, Ulla Forsström, Janne Keränen

Research output: Contribution to journalArticleScientificpeer-review


Sustainable, low-cost composite materials with improved performance typically contain, in addition to plastics, mineral fillers and fibers. Similar composite materials can also be produced by replacing fillers and fibers with side streams from paper mills using paper for recycling as their raw material. These side streams can be of different qualities and thus various end uses exist. The strength and water adsorption properties of such composites provide many opportunities for their application. Further, their environmental benefits are clear, since the use of these side streams reduces the need to landfill them. The study was also supported by chemical analysis of the side streams. This approach can also bring in additional revenue from the same raw material stream, improving overall resource and economic efficiency.
Original languageEnglish
Pages (from-to)4000-4009
Number of pages10
JournalPolymer Composites
Issue number11
Publication statusPublished - 1 Nov 2018
MoE publication typeA1 Journal article-refereed


  • composites
  • extrusion
  • fibers
  • fillers
  • recycling

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