Industrial scale evaluation of cationic tannin as a binder for hardboard
- Hardboards (HBs) (wet-process high-density fibreboards) were made in an industrial trial using a binder system consisting of cationic mimosa tannin and laccase or just cationic tannin without any thermosetting adhesive. The boards displayed superior mechanical strength compared to reference boards made with phenol–formaldehyde, easily exceeding the European standards for general-purpose HBs. The thickness swell of most of the boards was slightly greater than the standards would allow, so some optimisation is required in this area. The improved board properties appear to be mainly associated with ionic interactions involving quaternary amino groups in cationic tannin and negatively charged wood fibres rather than to cross-linking of fibres via laccase-assisted formation and coupling of radicals in tannin and fibre lignin.
| Author of HS Reutlingen | Kandelbauer, Andreas |
|---|---|
| DOI: | https://doi.org/10.1080/01694243.2014.896068 |
| ISSN: | 0169-4243 |
| eISSN: | 1568-5616 |
| Erschienen in: | Journal of adhesion science and technology |
| Publisher: | Taylor & Francis |
| Place of publication: | London |
| Document Type: | Journal article |
| Language: | English |
| Publication year: | 2014 |
| Tag: | adhesion; binder; cationic; fibre; fibreboard |
| Volume: | 28 |
| Issue: | 13 |
| Page Number: | 8 |
| First Page: | 1256 |
| Last Page: | 1263 |
| DDC classes: | 670 Industrielle und handwerkliche Fertigung |
| Open access?: | Nein |
| Licence (German): |  In Copyright - Urheberrechtlich geschützt |
