Premium
Interference microscopic studies on wood plastic and cell wall—liquid interactions in beech
Author(s) -
Baas P.
Publication year - 1975
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1975.tb04007.x
Subject(s) - composite material , beech , materials science , absorption of water , polymer , wood plastic composite , saturation (graph theory) , absorption (acoustics) , interference (communication) , cell wall , chemistry , botany , channel (broadcasting) , biochemistry , mathematics , combinatorics , composite number , biology , electrical engineering , engineering
SUMMARY A method is described to measure the content of methylmethacrylate‐polymer (poly‐MMA) in wood‐plastic composites and the influence of MMA on water and ethanol accessibility of beech wood fibre walls using interference microscopy. Although the S 2 ‐layer of the fibre wall is capable of containing about 12% volume of plastic, the effect of treatment on ultimate water absorption of the cell wall is negligible. The ultimate absorption of ethanol is, however, completely reduced to zero. Increased dimensional stability of wood‐poly‐MMA composites is probably due to hindrance by the plastic in the lumina of the wood elements. The interference microscopic method is also shown to be suitable for determination of the fibre saturation point of cell wall areas.