Role of fibre-fibre and fibre-matrix adhesion in stress transfer in composites made from resin-impregnated paper sheets.
2009 (English)In: International Journal of Adhesion and Adhesives, ISSN 0143-7496, E-ISSN 1879-0127, Vol. 29, no 5, 551-557 p.Article in journal (Refereed) Published
Paper-reinforced plastics are gaining increased interest as packaging materials, where mechanical properties are of great importance. Strength and stress transfer in paper sheets are controlled by fibre-fibre bonds. In paper-reinforced plastics, where the sheet is impregnated with a polymer resin, other stress-transfer mechanisms may be more important. The influence of fibre-fibre bonds on the strength of paper-reinforced plastics was therefore investigated. Paper sheets with different degrees of fibre-fibre bonding were manufactured and used as reinforcement in a polymeric matrix. Image analysis tools were used to verify that the difference in the degree of fibre-fibre bonding had been preserved in the composite materials. Strength and stiffness of the composites were experimentally determined and showed no correlation to the degree of fibre-fibre bonding, in contrast to the behaviour of unimpregnated paper sheets. The degree of fibre-fibre bonding is therefore believed to have little importance in this type of material, where stress is mainly transferred through the fibre-matrix interface.
Place, publisher, year, edition, pages
2009. Vol. 29, no 5, 551-557 p.
Composites, Wood, Microscopy
Mechanical Engineering Paper, Pulp and Fiber Technology
IdentifiersURN: urn:nbn:se:kth:diva-6993DOI: 10.1016/j.ijadhadh.2008.11.002ISI: 000265185300011ScopusID: 2-s2.0-62249147592OAI: oai:DiVA.org:kth-6993DiVA: diva2:11863
Tidigare titel: Comparison of stress-transfer mechanisms in paper sheets and composites med from resin-impregnated sheets.
Uppdaterad från submitted till published: 20101102.
QC 201011022007-04-192007-04-192010-11-02Bibliographically approved