Evaluation of low density hybrid panels using expandable granules: effect of granules diameter and content
| Autor: | Jan Luedtke, Ali Shalbafan, Saber Jafarnezhad |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
040101 forestry
0106 biological sciences Pressing Materials science Forestry Core (manufacturing) 04 agricultural and veterinary sciences 01 natural sciences chemistry.chemical_compound chemistry 010608 biotechnology Low density 0401 agriculture forestry and fisheries General Materials Science Fiber Polystyrene Composite material Layer (electronics) |
| Zdroj: | European Journal of Wood and Wood Products. 76:1505-1514 |
| ISSN: | 1436-736X 0018-3768 |
| DOI: | 10.1007/s00107-018-1330-z |
| Popis: | Low density hybrid panels (16 mm thickness) were produced using wood fiber as face layers and a mixture of coarse wood particles and expandable polystyrene (EPS) as core layer. The EPS was foamed (in-situ foaming) in the core layer during the pressing stage. The effects of granules diameter (0.4, 0.8, 1.15, 1.5, and 2.2 mm) and granules content (5, 10, and 15%) on the physical and mechanical properties were evaluated. The results showed that both variables had significantly influenced the panels’ properties. Mechanical properties mostly depended on the level of mechanical inter-locking of EPS with wood particles, while the physical properties were mostly influenced by the EPS distribution. Stronger mechanical inter-locking of EPS with wood particles was achieved by both larger diameter and higher amount of EPS granules (2.2 mm and 15%). A better EPS distribution between the wood particles was observed with the smaller EPS granules and higher amount of EPS (0.4 mm and 15%). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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