Center for Biofilm Engineering
Abstract:
"Bacterially Derived Biopolymers as Wood Adhesives"
04-036 The wood adhesive market is very large and problems due to volatile organic
compounds and toxic chemicals in many adhesives and their production are significant.
In addition, most of the adhesives are derived from depleting petrochemical
resources. An environmentally friendly wood adhesive based on renewable
resources and produced by microbial fermentation has been explored. Using
the shear block test method, a microbially produced polysaccharide has been
tested and the effects of wood type, humidity, set time, partial acetylation,
and surface wetting agents were determined. Shear strength of the
microbial polysaccharide adhesive was
compared to that of a commercial wood adhesive and other polysaccharides. Shear
strengths of up to 20MPa (3000 psi) for bonding maple have been obtained at 53%
relative humidity and 22º C.
Haag, A.P., R.M. Maier, J. Combie and G.G. Geesey, "Bacterially Derived
Biopolymers as Wood Adhesives," Int. J. Adhes. Adhes., 24:495-502 (2004) |
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