Year 2020, Volume 5, Issue 3

Year : 2020
Volume : 5
Issue : 3
Authors : Ramunas TUPCIAUSKAS, Janis RIZHIKOVS
Abstract : Wood-based panels (WBP) comprise a considerable part in the output of the European wood industry, GDP, and export. Over 30% of fibreboards and about 50% of other boards used in constructions and carpentry are produced in Europe. Industrially produced WBP contain synthetic adhesives determining mechanical properties and being made from oil are often toxic present health risks. Synthetic adhesives may comprise up to 15 % of the total WBP mass and up to 60 % of the total production costs. Production costs of WBP are important under the circumstances of rising oil prices. Moreover, synthetic bonding agents rather often is a source of emissions of formaldehyde and another problems with advancement of WBP solutions being offered by synthetic adhesives without formaldehyde (polymeric methylene diphenyl di-isocyanate – PMDI), or by natural adhesives from renewables (e.g., tannins or soy flour), or by pre-treatments activating bonding agents contained in the source material. The availability of raw materials for WBP is still another problem under the circumstances of the rate of population growth exceeding the rate of the regeneration of wood resources. Expanding the diversity of raw materials for production of WBP by utilization of agricultural residues containing components like wood is one of the possible solutions. The present study is aimed at development of technology of binder-less fibreboards made of steam-exploded agricultural residues, such as wheat straw (Triticum aestivum L.) and industrial hemp (Cannabis sativa L.) shives. Some aspects of the study, like differences in chemical composition, thermal properties of raw and pre-treated materials potentially affecting binder-less fibreboard bonding, presented.
For citation : Tupciauskas, R., Rizhikovs, J. (2020). Pre-treatment and investigation of wheat straw and hemp shives for binder-less fibreboard production. AGROFOR International Journal, Volume 5. Issue No. 3. pp. 80-87. DOI: 10.7251/AGRENG2003080T
Keywords : Wheat straw, Hemp shives, Steam explosion pre-treatment, Binder-less fibreboard.
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