Sauradipta Ganguly (Avtor), Angela Balzano (Avtor), Marko Petrič (Avtor), Davor Kržišnik (Avtor), Sadhna Tripathi (Avtor), Jure Žigon (Avtor), Maks Merela (Avtor)

Povzetek

Microwave modification can increase the permeability of wood by delaminating and rupturing its anatomical microstructures at their weak points. A high degree of intensity of microwave modification can cause significant structural damage to the microstructures of wood, resulting in poorer strength properties. The objective of this study was to evaluate the changes in the anatomical structure of Norway spruce (Picea abies (L.) Karst.) heartwood and sapwood after microwave modification in order to develop the most effective treatment in terms of applied energy without causing significant structural damage. Analysis with light and scanning electron microscopy were performed to evaluate the effect of microwave treatment for two different energy intensities, moderate and high intensity. The results indicated structural changes in the tracheid cells. Microscopy showed varying degrees of modification within the wood microstructure, with the heartwood samples showing a greater anatomical distortion compared to their sapwood counterparts. Furthermore, the samples were subjected to pycnometric density measurements, which indicated a reduction in skeletal and absolute density after microwave modification, for both high and moderate intensity treatment on sapwood and heartwood samples. With increasing microwave energy, a gradual increase in specific pore volume and porosity percentage of the samples were also detected.

Ključne besede

obdelava z mikrovalovi;svetlobna mikroskopija;elektronska vrstična mikroskopija;anatomija lesa;lastnosti lesa;gostota;permeabilnost;Picea abies;microwave treatment;light microscopy;scanning electron microscopy;wood anatomy;wood properties;density;permeability;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL BF - Biotehniška fakulteta
UDK: 630*8
COBISS: 62577411 Povezava se bo odprla v novem oknu
ISSN: 1999-4907
Št. ogledov: 329
Št. prenosov: 98
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: obdelava z mikrovalovi;svetlobna mikroskopija;elektronska vrstična mikroskopija;anatomija lesa;lastnosti lesa;gostota;permeabilnost;
Vrsta dela (COBISS): Članek v reviji
Strani: [17] str.
Letnik: 12
Zvezek: ǂiss. ǂ5
Čas izdaje: 2021
DOI: 10.3390/f12050598
ID: 13028220