Mekani̇k Odun Modi̇fi̇kasyon Metotlari

Şenol, Süleyman; Budakçı, Mehmet

doi:10.22531/muglajsci.283619

Cited by 12 publications

(7 citation statements)

References 25 publications

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“…The high demand for wood material has caused the decreased availability of wood having superior properties. For this reason, the need to find new methods to use wood material more effectively has arisen (Percin et al 2009;Kasal et al 2010;Şenol et al 2011;Şenol and Budakçı 2016). Many studies have been conducted to discover new methods that will eliminate or minimize the harmful properties of wood material and improve its properties.…”

Section: Introductionmentioning

confidence: 99%

“…The low-density wood material is commercially converted into a high-value product through the densification process. High-density wood material types can also be made more durable by densification (Dizman Tomak and Yıldız 2010; Doruk et al 2010;Dizman Tomak and Ali 2014;Demirel Köse and Temiz 2015;Hill 2011;Şenol and Budakçı 2016;Sandberg et al 2017;Balfas 2019;Fang et al 2019). The most crucial disadvantage of the densification process is that when the compressed wood material comes into contact with moisture or water, the cell walls tend to expand and regain the attributes of the initial wood.…”

Section: Introductionmentioning

confidence: 99%

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Adhesive type’s effects on adhesive strength of densified reinforced laminated wood obtained from black poplar (Populus nigra L.)

Yalçın

Esen

2022

BioRes

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Wood material is the most critical indoor and outdoor building element that has not changed since ancient times. Previous studies have determined that the mechanical properties of tree species with low industrial importance, such as poplar wood, can be improved when they are subjected to the densification process. In addition, it has been determined in studies that the lamination process has a positive effect on the mechanical properties of the wood material. This study aimed to assess the impact of the glue type on the bonding strength during the lamination process of the densified black poplar (Populus nigra L.) using reinforcement material. Wood materials were subjected to densification at 140 °C for 10 min. Then, the densified boards were laminated in 3 layers with a reinforcement element (Kevlar®®, fiberglass, and carbon fiber) between the two wooden boards. It was determined that the best result was obtained with the combination of Akfix polyurethane resin type and carbon fiber reinforcement material (8.49 N/mm2).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Adhesive type’s effects on adhesive strength of densified reinforced laminated wood obtained from black poplar (Populus nigra L.)

Yalçın

Esen

2022

BioRes

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“…Yet, the material must have some initial moisture content, which changes during the pressing process due to the steam pressure in the closed space. For example, the initial moisture of wood to be VTC processed is preferable to be around 15-30% [105]. The desirable temperature and pressure levels depend on the initial density and species of the wood [105,106].…”

mentioning

confidence: 99%

“…For example, the initial moisture of wood to be VTC processed is preferable to be around 15-30% [105]. The desirable temperature and pressure levels depend on the initial density and species of the wood [105,106]. For low-density woods, the best temperature is between 160-175 • C and pressures of 650-2000 kPa [11].…”

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confidence: 99%

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Densification of Bamboo: State of the Art

et al. 2020

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Densification processes are used to improve the mechanical and physical properties of lignocellulose materials by either collapsing the cell cavities or by filling up the pores, consequently reducing the void volume fraction. This paper focuses on an extensive review of bamboo densification process, which is achieved by compressing the material in the direction perpendicular to the fibers using mainly two different techniques: an open system, thermo-mechanical (TM), or a closed system, viscoelastic-thermal-compression (VTC). The main aim of bamboo densification is to decrease its heterogeneity, as well as to improve its mechanical and physical performance. In addition, densification may occur during the manufacturing of bamboo products in which hot-pressing processes are used to mold bamboo panels. There are over 1600 publications about bamboo, concentrated in the recent decade, mainly about engineered materials. Although several papers regarding bamboo and wood densification are available, very few studies have comprehensively investigated the densification process solely through compression of natural bamboo culms. According to the literature, applying a combination of compression of 6–12 MPa at temperatures between 120–170 °C for 8–20 min can produce materials with higher strength in comparison to the mechanical properties of natural bamboo. The majority of research on bamboo densification indicates that the modified material results in improved properties in terms of density, hardness, bending strength, stiffness, and durability. This paper provides a review that consolidates knowledge on the concept of bamboo culm densification, discusses the roles of parameters that control the process, ascertains the best practice, and finally determines gaps in this field of knowledge.

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Effects of densification on low-density plantation species for cross-laminated timber

Feng

Liew

2020

4TH INTERNATIONAL CONFERENCE ON THE SCIENCE AND ENGINEERING OF MATERIALS: ICoSEM2019

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Mekani̇k Odun Modi̇fi̇kasyon Metotlari

Abstract: The wood material has been the most preferable material in order to meet the needs of accommodation, transport and social since human beings existed.

Cited by 12 publications

References 25 publications

Adhesive type’s effects on adhesive strength of densified reinforced laminated wood obtained from black poplar (Populus nigra L.)

Adhesive type’s effects on adhesive strength of densified reinforced laminated wood obtained from black poplar (Populus nigra L.)

Densification of Bamboo: State of the Art

Effects of densification on low-density plantation species for cross-laminated timber

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