A5049735071- Wood Treatment and Properties
- Natural Fiber Reinforced Composites
- Lignin and Wood Chemistry
- Bamboo properties and applications
- Forest Management and Policy
- Tree Root and Stability Studies
- Hygrothermal properties of building materials
- Forest Biomass Utilization and Management
- Polymer Foaming and Composites
- Additive Manufacturing and 3D Printing Technologies
- Cellular and Composite Structures
- Material Properties and Processing
- Acoustic Wave Phenomena Research
- Textile materials and evaluations
- Innovations in Concrete and Construction Materials
- Wood and Agarwood Research
- Indoor Air Quality and Microbial Exposure
- Building materials and conservation
- Forest ecology and management
- Engineering and Materials Science Studies
- Municipal Solid Waste Management
- Advanced Theoretical and Applied Studies in Material Sciences and Geometry
- Materials Engineering and Processing
- Plant Surface Properties and Treatments
- Architecture and Computational Design
Transylvania University of Brașov
2016-2025
Salzburg University of Applied Sciences
2016-2025
University of Ljubljana
2021
Stellenbosch University
2017-2018
University of Tennessee at Knoxville
2017
Deutsche Gesellschaft für Holzforschung
1995
Ludwig-Maximilians-Universität München
1995
In this work, the adhesive systems used today in European industries of particleboard, medium density fibreboard (MDF) and oriented strand board (OSB) are discussed. The structure MDF OSB markets Europe relation to types adhesives product specifications presented as well. It is noticeable that new for wood-based panels like particleboard fibreboard, known non-furniture markets, growing at a fast rate. was concluded most technological changes concerning applied additives have been realised...
The objective of this study was to investigate the sound absorption coefficient bark-based insulation panels made softwood barks Spruce (Picea abies (L.) H. Karst.) and Larch (Larix decidua Mill.) by means impedance tube, with a frequency range between 125 4000 Hz. highest efficiency recorded for spruce boards bonded urea-formaldehyde resin, at level 1000 2000 potential noise reduction larch glued tannin-based adhesive covers same interval. experimental results show that bark, an underrated...
This paper reviews the development of Chinese wood products in last 10 years, besides offering an overview about its forestry and specific export import markets for commodities, encompassing sawn wood-based components. In decades, China's industry encountered accelerated development. progress resulted emergence as largest player not only global wooden raw materials, but also market, has become exporter value-added products. Since 2000, China introduced modern industrial equipment forest...
Ecofriendly wood-based materials are required by consumers at present. Decorative panels part of a large group wood-composite materials, and their environmental properties must not be neglected. More environmentally friendly decorative can achieved various methods. This paper describes method production from larch bark. Tree bark, as byproduct the wood industry, is one research topics that have gained interest in last decade, especially for its applications biobased lignocomposites, with...
Walnut and hazelnut shells are agricultural by-products, available in high quantities during the harvest season. The potential of using these two residues as raw materials particleboard production has been evaluated this study. Different panels with either walnut or combination melamine-urea formaldehyde polyurethane at same level 1000 kg/m3 density were produced a laboratory hot press mechanical properties (modulus elasticity, bending strength, Brinell hardness) physical (thickness swelling...
Tree bark is a by-product of the timber industry available in large amounts, considering that approximately 10% volume tree stem bark. Bark used primarily for low-value applications such as heat generation or mulch. To best our knowledge, this study first one scrutinises thermal insulation panels made from spruce fibres with different densities and fibre lengths manufactured wet process. The boards between 160 300 kg/m3 were self-bonded. Internal bond, conductivity, dimensional stability...
The aim of this study was to investigate the flammability ecologically friendly, 100% natural larch and poplar bark-based panels bonded with clay. clay acted as a fire retardant, it improved resistance boards by 12–15% for surface 27–39% edge testing specimens. thermal conductivity also analyzed. Although had density ranging from 600 900 kg/m3, panel kg/m3 excellent, comparable lightweight insulation much lower densities. Besides that, advantage bark boards, an material, is mostly in...
Spruce bark particles were used as an insulation fill material for the thermal of a timber frame wall which was subjected to simulated winter temperature difference between indoor and outdoor climate. The profile development wall's cross section modeled using Fourier's transient heat flow theory. It shown that layers conducted more slowly than commonly known blow-in materials because their low diffusivity. Moreover, moisture due water vapor streams caused by pressure differences inside...
Tree bark is a byproduct of the timber industry which accrues in large amounts, because approximately 10% volume log bark. Bark used primarily for low-value applications such as fuel or soil covering material agriculture. Within present study, thermal insulation panels made from larch, pine, spruce, fir and oak tree with different resins (urea formaldehyde, melamine Quebracho, Mimosa) binder are discussed. Also, properties larch mixed industrial popcorn investigated. The physical-mechanical...
The potential of tree bark, a by-product the woodworking industry, has been studied for more than seven decades. Bark, as sustainable raw material, can replace wood or other resources in numerous applications construction. In this study, acoustic properties bark-based panels were analyzed. roles particle size (4–11 mm and 10–30 mm), orientation (parallel perpendicular) density (350–700 kg/m3) samples with 30 60 thicknesses at frequencies ranging from 50 to 6400 Hz. Bark-based boards...
The aim of this research is the characterization physical and mechanical properties Paulownia sawn wood from three plantation sites in Europe, namely Spain, Bulgaria Serbia. As a fast-growing species, has significant positive forecast for European markets wide range possible applications that still need to be explored. For purpose, tomentosa(Tunb.) x elongata(S.Y. Hu) species was investigated. Sorption behaviour, Brinell hardness, 3-point bending strength, flexural modulus elasticity,...
Brewer’s spent grain (BSG) is the richest by-product (85%) of beer-brewing industry, that can be upcycled in a plentiful applications, from animal feed, bioethanol production or for removal heavy metals wastewater. The aim this research to investigate mechanical, physical and structural properties particleboard manufactured with mixture wood particles BSG gradually added/replacement 10%, 30% 50%, glued polymeric diisocyanate (pMDI), urea-formaldehyde (UF) melamine (MUF) adhesives. density,...
The effects of using 100% larch bark (Larix decidua Mill) as a raw material for composite boards on the thermophysical properties this innovative were investigated in study. Panels made with 4–11 mm and 10–30 particle size, ground oriented parallel perpendicular to panel’s plane at densities varying from 350 700 kg/m3 bonded urea-formaldehyde adhesive analyzed thermal conductivity, resistivity specific heat capacity. It was determined that there highly significant influence bulk density...
The traditional Japanese method of wood surface charring was studied. To perform the charring, three sawn Norway spruce and Silver fir boards dimension 190 × 24 4000 mm3 were tied together to act as a chimney charred in short time (3–4 min) with open flame at temperature above 500 °C. Temperature inside recorded on different positions during process. Surface increased from 0 °C approx. 120–300 s while 100–250 s. thickness layer resulting cupping effect investigated heights evaluate its...
The enhanced use of wood residues from the timber industry contributes to mitigating global climate crisis. Currently, bark, a by-product industry, is primarily burned for thermal energy generation. However, with growing demand lignocellulosic products and emphasis on extending life cycles, it would be more beneficial prioritize substantial uses bark over utilization. Although numerous methods utilization have been explored, significant untapped potential remains. extractives obtained...
Abstract In this study, bark-based insulation boards were made out of pine ( Pinus sylvestris ) bark. Their properties seem to be promising with regard thermal conductivity, heat storage capacity, and mechanical characteristics. The influences panel density, resin content, particle size on the relevant board studied, showing that it is possible produce comparatively light (<500 kg/m 3 bark for insulation. particular, panels' capacity superior commonly known materials. For reason panels...
In order to improve the acceptance of broader industrial application flax fiber reinforced beech (Fagus sylvatica L.) plywood, five different applicated adhesive systems were tested. Epoxy resin, urea-formaldehyde, melamine-urea formaldehyde, isocyanate MDI prepolymer, and polyurethane displayed a divergent picture in improving mechanical properties—modulus elasticity, modulus rupture, tensile strength, shear strength screw withdrawal resistance—of fiber-reinforced plywood. resin is well...
This research presents the influence of two different cellulose (hydrophobic pretreated/non-pretreated) and one flax-fiber unidirectional nonwoven low areal weight fiber reinforcements on mechanical properties urea-formaldehyde bonded five layered beech (Fagus sylvatica L.) plywood as an alternative to commonly used synthetic reinforcements. The results display divergent trends regarding improvement properties—modulus elasticity, modulus rupture, tensile strength, shear screw withdrawal...