The implementation of the Biocide Products Directive and the impact of public opinion are the main reasons for dramatic changes in the field of wood preservatives. The new generation preservatives …
For many years, biocides (mainly copper chromium arsenic (CCA) water-based solutions, containing toxic heavy metals – copper (Cu), chromium (Cr) and arsenic (As)) have been used for protection of wood. …
Studies of the physical and chemical properties of soft deciduous wood, namely, grey alder (Alnus incana) in thermal modification (temperature 140-180oC, water vapour medium) are carried out. Changes in the …
In the moderate climatic zone, in which also Latvia is located, mainly coniferous wood is used in construction, whose properties are more appropriate for load-carrying and bearing structures. The stock …
Thermal treatment is one of the most promising methods for upgrading wood durability properties. In the hydrothermal modification process, not only the chemical properties and structure of wood are changed, …
Ash-tree wood is heavy, tough and durable; hence, it belongs to hard deciduous wood species. In comparison with oak, ash-tree is more fast-growing; it reaches a height of 20 m …
The following hardwood species were used for heat treatment: birch (Betula pendula) and grey alder (Alnus incana). Modification was carried out in a multi-functional pilot device WTT in elevated water …
The development of LVL from modified European beech (Fagus sylvatica L.) veneer aims at a utilization in load bearing constructions outdoors. In most applications, these constructions are endangered by attack …
In this paper, phenol-formaldehyde (PF) resins with different average molecular weight (Mw) oligomers were used, to evaluate the effect of molecular size on the allocation of impregnated chemicals in wood …
This work deals with the evaluation of Laminated Veneer Lumber (LVL) made from rotary cut beech (Fagus sylvatica L.) veneers, which were treated with low molecular weight alkaline phenolic resins …
This study investigated the effect of phenol-formaldehyde (PF) resin treatment on the dimensional stabilityof birch wood. Therefore, three different low molecular weight PF resins were synthesized in 1L laboratoryreactor with …
The source of lignin has a significant influence on the products of vacuum low-temperature microwave-assisted pyrolysis. Most promising for applications that require high phenolic fraction yields are PKL and SOSL. …
