Evaluating the Effect of Finishing Materials on Viscous Elastic Properties of Particle Boards

Vobolis, Jonas; Albrektas, Darius

doi:10.5755/j01.ms.18.3.2436

Cited by 3 publications

(4 citation statements)

References 5 publications

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“…Before and after treatment the dimensions and mass of specimens were measured with the following accuracy: length -0.05 mm, width and thickness -0.01 mm, weight -0.01 g. The special test stand was used to determine the modulus of elasticity and the damping coefficient on the basis of the non-destructive testing method, which also allowed assessing the mechanical properties of specimens. The modulus of elasticity E was calculated based on the following formula [19,20]:…”

Section: Materials and Methodologymentioning

confidence: 99%

Effect of heat treatment on wettability and MOE of pine and spruce wood

Navickas

2015

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This research was performed in order to determine how the heating process affects the wettability and mechanical properties of spruce (Picea abies) and pine (Pinus silvestris) wood. Studies were carried out using wood heated in laboratory. Specimens were cut out of planed beams. Then specimens were divided into the following four groups: specimens of one group were not exposed to heating, whereas specimens of three other groups were subjected to heating at the temperature of 190 ○ C for 1 to 3 hours respectively, in the air under atmospheric pressure. Both heated and unheated specimens were moistened and dried in a climatic chamber. Before and after treatment the mechanical properties of specimens were assessed using the original method of transverse vibrations and contact angle measurements were carried out using the sessile drop technique. The results showed a significant increase in wood hydrophobicity after treatment. Spruce contact angle after treatment increased from 1.3 to 1.45, pine from 1.4 to 2 times. Modulus of Elasticity (MOE) of pine wood decreased, while MOE of spruce slightly increased after heat treatment.

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Section: Materials and Methodologymentioning

confidence: 99%

Effect of heat treatment on wettability and MOE of pine and spruce wood

Navickas

2015

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“…Compared to wood and wood-based panels, the damping coefficient is two to three times larger, indicating that the panel has good acoustic properties. 41,45…”

Section: Resultsmentioning

confidence: 99%

“…Compared to wood and wood-based panels, the damping coefficient is two to three times larger, indicating that the panel has good acoustic properties. 41,45 Examining panel 2, made from scraps, it was found it has between four and nine resonant frequencies in different zones in the frequency range of 20-2000 Hz; resonant frequencies above 900 Hz are not found. In addition, the panel did not vibrate at a frequency higher than 820 Hz.…”

Section: Resultsmentioning

confidence: 99%

Investigation and evaluation of the performance of interior finishing panels made from denim textile waste

Jucienė

Dobilaitė

Albrektas

et al. 2022

Textile Research Journal

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The problem of textile waste is obvious and relevant, and detailed research into the problem is still lacking. In particular, there is a lack of research on the recycling and reuse of textile waste in such areas as the construction industry. The aim of this research is to develop an interior finishing panel by combining denim textile waste with an eco-friendly binder, to investigate, analyze and evaluate the main physical–mechanical properties of this panel. The investigated panels were made from denim textile waste with different structures for interior decoration. The results have shown that different manufacturing methods provide different sound insulation, and better sound insulation properties were distinguished by a panel made from fabric threads. When assessing the surface hardness of the panels, it was found that a panel made from threads has a higher hardness than a panel made from fabric scraps. Thus, evaluating the results of the performed research, it can be seen that the use of textile waste in acoustic panels is possible, with textile waste as the main component. Scanning electron microscopy analysis confirmed that the strength properties of the panel are closely related to the technology and structure of the panel, and that panels made from scraps have poorer strength and acoustic properties than panels made from threads.

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“…Also, overlays have a large effect on the mechanical properties of particleboard (Vobolis and Albrektas, 2012). Depending on the orientation/direction of the overlay material (especially on sliced veneer of natural wood), the MOE of a fi nished particleboard can be increased or decreased in the direction concerned.…”

Section: Uvodmentioning

confidence: 99%

Influence of Finishing Materials on Viscous Elastic Properties of Wooden Structures

et al. 2019

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In this study, the effect of finishing process on the mechanical properties of oak and pine wood elements were investigated. A special test stand was used for this purpose. Specimens were divided into subgroups, the resonance frequency of the specimens was determined (when they vibrate in mode of a theoretic isotope beam), and the modulus of elasticity (MOE) and damping coefficient were estimated. It was determined that MOE of oak and pine specimens was 8415-10570 MPa and 8220-14104 MPa, respectively, while damping coefficients were 0.014-0.019 r. u. and 0.013-0.026. Afterwards, some specimens were varnished (pentaftal varnish was used), while the specimens from others subgroups were oiled (water-based outdoor wood oil was used) and after each processing step, the viscous elastic properties of the specimen were recorded. The specimens were finished four times – first, one side was finished in two layers, and then the other side. For the determination of elastic properties of the finishing materials, films were prepared separately. The fi lm formation was carried out by casting liquid on a smooth, siliconised surface of a test panel. The tensile test was carried out using the universal testing machine. It was established that MOE of films varied in the range of 4-7 MPa. After the varnishing process, the MOE of oak and pine elements decreased by 5 % and 7 %, respectively, while the damping coefficient decreased (in varnish case) by 60 %. The impact of oil on viscous elastic properties of the specimens was quite marginal.

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Evaluating the Effect of Finishing Materials on Viscous Elastic Properties of Particle Boards

Cited by 3 publications

References 5 publications

Effect of heat treatment on wettability and MOE of pine and spruce wood

Effect of heat treatment on wettability and MOE of pine and spruce wood

Investigation and evaluation of the performance of interior finishing panels made from denim textile waste

Influence of Finishing Materials on Viscous Elastic Properties of Wooden Structures

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