| Journal: | Maderas : ciencia y tecnología |
| Database: | |
| System number: | 000544709 |
| ISSN: | 0718-221X |
| Authors: | Šprdlík, Václav1 Brabec, Martin2 Mihailović, Stefan1 Rademacher, Peter2 |
| Institutions: | 1Mendel University in Brno, Department of Furniture Design and Habitation, Brno. República Checa 2Mendel University in Brno, Department of Wood Science, Brno. República Checa |
| Year: | 2016 |
| Season: | Ene |
| Volumen: | 18 |
| Number: | 1 |
| Pages: | 91-98 |
| Country: | Chile |
| Language: | Inglés |
| English abstract | Ammonia treatment was used in order to change the colour of wood and also to plasticize the wood before bending or compressing. The mechanism and the process of gaseous ammonia treatment impact on wood are not very well known. The goal of this study was to quantify the effect of gaseous ammonia on mechanical properties, i.e., modulus of elasticity (MOE), modulus of rupture (MOR) and deflection at maximal loading force (yFmax). When wood was treated by water and ammonia vapour together, significant changes in plasticity of wood were observed. The samples which were firstly exposed to water vapour and then to ammonia vapour exhibit the lowest values of MOE and MOR and an enhanced flexibility of the material. The results show that ammonia treatment increases wood plasticity. This process can be used for manufacturing of bent furniture. |
| Keyword: | Fagus sylvatica, Mechanical properties, Modulus of elasticity, Modulus of rupture, Plasticization |
| Full text: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
