Summary
The technique described provides a rapid method for screening thermoplastic polyurethanes against deteriogenic micro-organisms using thin films (0.4–0.5 mm thick) of plastic prepared in an electric plantens press. The films are inoculated with a spore suspension of Gliocladium roseum and can be viewed directly under the light microscope for evaluation of surface effects; selective staining can be used to reveal fungal mycelium. Results can be obtained within a week which correlate with longer term tests using commercial samples. The technique can also be used to isolate potential polyurethane deteriorating micro-organisms from the environment and to confirm their biodeteriogenic activities.
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References
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Shuttleworth, W.A., Seal, K.J. A rapid technique for evaluating the biodeterioration potential of polyurethane elastomers. Appl Microbiol Biotechnol 23, 407–409 (1986). https://doi.org/10.1007/BF00257043
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DOI: https://doi.org/10.1007/BF00257043