Localisation and quantification of potential binding sites for compatibilisers on soft- and hardwood in wood–plastic composite systems
Localisation and quantification of potential binding sites for compatibilisers on soft- and hardwood in wood–plastic composite systems
No Thumbnail Available
Date
2016
Authors
Effah, Bernard
Albert, Van Reenenb
Martina, Meincken
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley Online Library
Abstract
Chemical force microscopy (CFM) was used to characterise the surface of pine and beefwood with atomic force microscopy (AFM)
tips coated with different compatibilisers. With the resulting force images, potential binding sites for compatibilisers, used in
wood–plastic composites (WPC) to enhance adhesion between two relatively incompatible phases, were localised and quantified.
Tips were coated with two commercially available polymers namely ethylene vinyl alcohol (EVOH) and polyethylene-grafted
maleic anhydride (PE-g-MA). It could be observed that the interaction forces between the EVOH coated tip and the wood surface
was highly species sensitive, whereas adhesive forces measured between the PE-g-MA coated tip and the wood surface were com parable for both wood species. The force maps show that wood species differ in the distribution of functional groups, and the
force histograms show that the frequency distribution of the adhesive forces varied for the two wood species. The adhesive force
maps clearly show a difference between wood/compatibiliser systems, and the differences can be related to the chemical compo sition of the wood species. The results confirm that not all compatibilisers are equally suitable for all wood species and these
results were confirmed by mechanical tensile tests of WPC systems in a related study. Copyright © 2016 John Wiley & Sons, Ltd
Description
Keywords
Citation
Effah, B., van Reenen, A., & Meincken, M. (2017). Localisation and quantification of potential binding sites for compatibilisers on soft‐and hardwood in wood–plastic composite systems. Surface and Interface Analysis, 49(6), 527-532.