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The effect of cellulose–solvent interaction on the mechanical properties of bonded fibrous structures
Author(s) -
Rigdahl Mikael,
de Ruvo Alf
Publication year - 1984
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1984.070290117
Subject(s) - ultimate tensile strength , materials science , solvent , cellulose , acetone , composite material , polymer , inert , cellulose acetate , absorption of water , polymer chemistry , organic chemistry , chemistry
The mechanical properties, i.e., the tensile strength, tensile modulus, elongation at rupture, and tensile energy absorption (work of rupture), of a dry‐formed network of cellulose fibers are shown to be substantially improved by impregnation of the network with organic solutions of poly(vinyl acetate) (PVAC). With the exception of the tensile strength, the improvement of the mechanical properties in the dry state is, however, dependent not only on the polymer content, but also on the interaction between the solvent and the cellulose fibers constituting the network. A solvent which interacts strongly with cellulose produces a stiffer and less ductile network than a more inert liquid. It is suggested that this effect is the result of a change in the cellulose network structure itself. The solvents used in this study were methanol, acetone, ethyl acetate, chloroform, and toluene.