Quasi-static and fatigue performance of bonded acetylated rubberwood (Hevea brasiliensis, Mull. Arg.)

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Samuel Oluyinka Olaniran - (Author)
  • Gaspard Clerc - (Author)
  • Etienne Cabane - (Author)
  • Andreas J. Brunner - (Author)
  • Markus Rüggeberg - , ETH Zurich, Swiss Federal Laboratories for Materials Science and Technology (Empa) (Author)

Abstract

Rubberwood is widely planted for latex production. At the cessation of latex yield it becomes a viable timber source in the wood industry. While good bonding performance of rubberwood has been reported, quantitative information to support this statement is missing. In this study, the tensile shear strength (TSS) and wood failure percentage (WFP) of unmodified and acetylated rubberwood in both wet and dry conditions were examined. Three frequently used adhesives were selected: one-component polyurethane (1C PUR), melamine-urea-formaldehyde (MUF), and phenol-resorcinol-formaldehyde (PRF). Furthermore, fatigue behaviour was analysed for PRF-bonded samples by cyclic loading. Results showed that in dry state, the TSS and WFP of acetylated rubberwood is comparable to the unmodified samples for all adhesives. In wet condition, the performance of bonded rubberwood was improved by acetylation. Cyclic loading revealed comparable fatigue behaviour of bonded unmodified and acetylated rubberwood. This investigation provides first quantitative information on the performance of bonded rubberwood, which can be a valuable input for the production of laminated timber products for structural purposes.

Details

Original languageEnglish
Pages (from-to)49-58
Number of pages10
JournalEuropean Journal of Wood and Wood Products
Volume79
Issue number1
Publication statusPublished - Jan 2021
Peer-reviewedYes
Externally publishedYes

External IDs

Scopus 85092763833
ORCID /0000-0002-6966-8311/work/142254810

Keywords