Recycled fibres and fibre sludge as reinforcement materials in injection molded composites

Elina Pääkkönen, Lisa Wikström, Heidi Peltola, Kyösti Valta, Elias Retulainen

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Abstract

Usually wood flour or sawdust is used as filler in conventional wood plastic composite (WPC) materials. However, there is also an increasing interest towards the use of wood pulp fibres in reinforced plastic applications. This research compares the effect of recycled fibres or side streams of paper as reinforcement in polylactic acid (PLA) or polypropylene (PP) composites. Fibre material from liquid packaging board, non-deinked old newspapers and fibre sludge from recycling processes are compared with virgin softwood kraft pulp fibres. Composites were produced by melt processing to a fibre content of 30 wt.% (or 10 wt.% fibre sludge), and the mechanical properties were investigated. Recycled fibres provided comparable, or even higher, plastic reinforcement than virgin softwood fibres. In polypropylene composites, the differences in mechanical properties between different fibre types were relatively small. Fibre sludge decreased the mechanical performance of composites but can be considered as cheap filler in cases when mechanical properties are not crucial. The possibility to use low-cost materials like recovered paper or deinking sludge in wood plastic composites is an interesting option for future sustainable applications.
Original languageEnglish
Title of host publication5th International Symposium on Emerging Technologies of Pulping and Papermaking & 3rd International Papermaking and Environment Conference, 5th ISETPP & 3rd IPEC
Subtitle of host publicationProceedings
Publication statusPublished - 2016
Event5th International Symposium on Emerging Technologies of Pulping and Papermaking & 3rd International Papermaking and Environment Conference, 5th ISETPP & 3rd IPEC - Guangzhou, China
Duration: 7 Nov 20169 Nov 2016

Conference

Conference5th International Symposium on Emerging Technologies of Pulping and Papermaking & 3rd International Papermaking and Environment Conference, 5th ISETPP & 3rd IPEC
Abbreviated titleISETPP
CountryChina
CityGuangzhou
Period7/11/169/11/16

    Fingerprint

Keywords

  • recycled fibres
  • fibre sludge
  • biocomposite
  • wood fibre composite

Cite this

Pääkkönen, E., Wikström, L., Peltola, H., Valta, K., & Retulainen, E. (2016). Recycled fibres and fibre sludge as reinforcement materials in injection molded composites. In 5th International Symposium on Emerging Technologies of Pulping and Papermaking & 3rd International Papermaking and Environment Conference, 5th ISETPP & 3rd IPEC: Proceedings