Effect of log position in European Larch (<i>Larix decidua</i>Mill.) tree on the technological properties of particleboard

Muhcu, Selda; Nemli, Gökay; Ayrılmış, Nadir; Bardak, Selahattin; Baharoğlu, Mehmet; Sarı, Bünyamin; Gerçek, Ziya

doi:10.1080/02827581.2014.986522

Cited by 6 publications

(6 citation statements)

References 11 publications

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“…Its wood is highly valued for lumber and particleboard (Muhcu et al 2015). Wood edge-glued panels (EGP) have a more heterogeneous structure than solid wood (Sutcu 2013).…”

Section: Introductionmentioning

confidence: 99%

Determination of Optimal Machining Parameters of Massive Wooden Edge-Glued Panels Made of European larch (Larix decidua Mill.) using Taguchi Design Method

Sofuoğlu¹

2015

BioResources

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In this paper, the optimization of computer numerical control (CNC) machining parameters were conducted using the Taguchi design method on the surface quality of massive wooden edge glued panels (EGP) made of European larch (Larix decidua Mill). Three machining parameters and their effects on surface roughness were evaluated. These parameters included tool clearance strategy, spindle speed, and feed rate. An analysis of variance (ANOVA) was performed to identify the significant factors affecting the surface roughness (Ra and Rz). Optimum machining parameter combinations were acquired by conducting an analysis of the signal-to-noise (S/N) ratio. Optimal cutting performance for the Ra and Rz was obtained for the cutter at a tool clearance strategy of an offset 16000 rpm spindle speed and 1000 mm/min feed rate. The surface roughness, both the Ra and Rz, increased with increasing feed rate. Optimal cutting performance for Ra and Rz was obtained for a tool clearance strategy of an offset 16000 rpm spindle speed, and 1000 mm/min feed rate cutting settings. Based on the confirmation tests, Ra decreased 2.2 times and Rz 1.8 times compared to the starting cutting parameters.

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“…Its wood is highly valued for lumber and particleboard (Muhcu et al 2015). Wood edge-glued panels (EGP) have a more heterogeneous structure than solid wood (Sutcu 2013).…”

Section: Introductionmentioning

confidence: 99%

Determination of Optimal Machining Parameters of Massive Wooden Edge-Glued Panels Made of European larch (Larix decidua Mill.) using Taguchi Design Method

Sofuoğlu¹

2015

BioResources

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“…Neverova et al (2013) reported that the extractives were higher in the bottom part of the larch stem. However, in the European larch, the solubility and the amount of hemicelluloses decreased and the ash content increased as the height on the stem increased (Muhcu et al, 2015). However, in oak wood, the extractive content increased as the height of the stem increased (Krutul et al, 2014b).…”

Section: Resultsmentioning

confidence: 99%

Effect of the height of the stem on the polysaccharide composition ofPinus brutia (Ten) wood and kraft-pulp

Pekgözlü¹,

Taş²,

Ceylan³

et al. 2020

Turk J Agric For

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Compared to cellulose and starch, HCs have limited usage in industry, even though they are abundant. Generally, they are used as an energy resource with lignin, although HCs have only about half of the heating value of lignin i.e. the heating values for lignin and HCs are 27 MJ/ kg and 13.6 MJ/kg, respectively (Yoon and van Heiningen, 2008). HCs that are recovered before the pulping process can be used in various industrial applications. Biorefineries can take a step toward the utilization of HCs in different areas (Vila et al., 2011). HCs can be used as an alternative to petroleum-based polymers. The features of filmforming and biodegradability make xylan and mannan a resource for food packaging. They have low oxygen, grease, and permeability to various aromas, as well as high tensile strength. HCs are used for coating fruit, cheese, and paper. In addition to being edible biosurfactants and food additives, HCs are utilized in hydrogels, contact lenses, and the coatings for controlled-release drugs (Karaaslan et al., 2011; Li et al., 2013; Li et al., 2017). Because of their hydrophilic structures, which have positive effects on their strength properties, they can also be used as additives in the production of paper (Bai et al., 2012; Liu et al., 2015). The extraction of HCs before processing to prevent the Abstract: The first goal of this study was to determine the polysaccharide composition of Pinus brutia wood and how this composition changes during kraft pulping. The second goal was to determine the effect of the stem height on chemical composition. The content of hemicelluloses was about 280 mg/g at a height of 1.3 m, whereas the content was about 300 mg/g at the top of the stem (4.3 m). The main sugars in the wood of P. brutia were mannose (102 mg/g dw), xylose (69 mg/g dw), and glucose (44 mg/g dw). During kraft pulping, 52% of the total hemicelluloses were degraded. Glucose and xylose were more stable than mannose. The total amounts of cellulose in the wood and in the kraft pulp of P. brutia were determined to be 330 mg/g and 661 mg/g, respectively, at 1.3 m.

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“…The ash has lower wettability than the wood, which decreases the bond quality. A non-polar surface of the ash makes it hard for the water-based adhesive to wet and penetrates into the cellular structure, resulting in the poor adhesion between the resin and wood (Muhcu et al 2015). This is the other reason for the lower strength properties of the particleboards manufactured from heartwood.…”

Section: Physical and Mechanical Properties And Formaldehyde Emissionmentioning

confidence: 99%

“…Many studies have been performed on the effects of various factors on the quality properties of particleboard. These factors are; the usages of various raw materials such as wood bark (Blanchet et al 2000), pine cone (Ayrilmis et al 2009), cotton (Gossypium hirsutum) stalks (Nazerian et al 2016), canola (Brassica napus) straws (Kord et al 2016), and needle litter (Nemli et al 2008), different parameters of the wood such as log position (Muhcu et al 2015), permeability of wood (Lyman 1969), anatomical and chemical properties of wood (Baharoglu et al 2013), moisture content of raw material (Baharoglu et al 2012), acidity of the particles (Akyuz et al 2010), wood extractives (Foster 1967), density of wood (Maloney 1977), mature and juvenile wood (Wasniewski 1989), and raw material growth region (Bardak et al 2017). The parameters of the particleboard production, such as dimensions of the particles (Motted 1967), residue type and tannin content (Moubarik et al 2013), paraffin application technique (Baharoglu et al 2014), hardener type, urea usage and conditioning period (Atar et al 2014), solid content of the adhesive and panel density (Sari et al 2013), decor paper properties (Bardak et al 2011), and shelling ratio (Nemli and Ozturk 2006) are investigated.…”

Section: Introductionmentioning

confidence: 99%

The quality comparison of particleboards produced from heartwood and sapwood of European larch

Bardak

Nemli

Bardak

2019

Maderas, Cienc. tecnol.

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In this paper, the impacts of heartwood and sapwood usage on the physical, mechanical, and surface properties and formaldehyde emission of particleboard are investigated. European Larch (Larix decidua) trees are chosen as a raw material. The logs are divided into three segments: sapwood, heartwood and total wood. The highest amounts of cellulose (51,54%), and hemicelluloses (22,24%) in the sapwood, followed by total wood, and the heartwood, respectively. However, the highest amount of lignin (30,54%) was found in the heartwood. The highest extractives values are obtained from heartwood, followed by total wood, and the sapwood, respectively. While the lowest pH value (3,03) is found in heartwood, the sapwood samples provide the highest values (4,95). The highest ash (0,49%) content and amount of condensed tannin (13,89%) are extracted from heartwood, followed by total wood, and sapwood, respectively. The test panels manufactured from sapwood have the smoothest surface (7,49 µm (R a ) , 48,86 µm (R y ), and 35,12 µm (R z )) and the lowest contact angles (67,8°), while the roughest surface (14,20 µm (R a ) , 68,05 µm (R y ), and 50,02 µm (R z )) and highest contact angle (96,9°) are obtained from the panels of heartwood. The thickness swelling (19,88%) and formaldehyde emission (7,28%) values of the panels manufactured from heartwood are significantly lower than the panels manufactured from the total wood and sapwood. The highest modulus of rupture (MOR), modulus of elasticity (MOE), and internal bond (IB) values are observed on sapwood, respectively, 15,60 MPa (MOR), 2201 MPa (MOE), and 0,523 MPa (IB). These mechanical strength values (MOR, MOE, and IB) are followed by total wood, and the heartwood, respectively. Surface smoothness and wettability of the particleboards manufactured from sapwood are better than those of total wood and heartwood.Maderas. Ciencia y tecnología 21 (4): 511 -520, 2019 Universidad del Bío-Bío 512 Akbulut, T. 1995. Effects of various factors on the properties of particleboard, Ph.D. Thesis, Istanbul University, Faculty of Forestry, Istanbul, Turkey. ˂https://tez.yok.gov.tr/UlusalTezMerkezi/tezSorguSonucYeni. jsp>. (Access 07/06/2017). Akyuz, K.C.; Nemli, G.; Baharoglu, M.; Zekovic, E. 2010. Effects of acidity of the particles and amount of hardener on the physical and mechanical properties of particleboard composite bonded with urea formaldehyde. Journal of Adhesion and Adhesives 30(3): 166-169. Atac, Y. 2009. Examination some softwood and hardwood trees interms of paper properties of their sapwood and hearthwood. Ph.D. Thesis, Bartin University, Bartin, Turkey. ˂https://tez.yok.gov.tr/UlusalTezMerkezi/ tezSorguSonucYeni.jsp>. (Access 07/06/2017). Atar, I.; Nemli, G.; Ayrilmis, N.; Baharoglu, M.; Sari, B.; Bardak, S. 2014. Effects of hardener type, urea usage and conditioning period on the quality properties of particleboard. Materials and Design 56: 91-96. Ayrilmis, N.; Buyuksari, U.; Avci, E.; Koc, E. 2009. Utilization of pine cone in manufacture of wood based composite. Forest Ecology M...

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Effect of log position in European Larch (Larix deciduaMill.) tree on the technological properties of particleboard

Cited by 6 publications

References 11 publications

Determination of Optimal Machining Parameters of Massive Wooden Edge-Glued Panels Made of European larch (Larix decidua Mill.) using Taguchi Design Method

Determination of Optimal Machining Parameters of Massive Wooden Edge-Glued Panels Made of European larch (Larix decidua Mill.) using Taguchi Design Method

Effect of the height of the stem on the polysaccharide composition ofPinus brutia (Ten) wood and kraft-pulp

The quality comparison of particleboards produced from heartwood and sapwood of European larch

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