TAILIEUCHUNG - Effects of plasma treatment and sanding process on surface roughness of wood veneers

An ideal veneer surface is crucial for good panel properties in plywood manufacturing. The aim of this study was to compare plasma treatments and sanding (mechanical) processes with respect to the surface roughness of veneers. Rotary-cut veneers with a thickness of 2 mm from Scots pine (Pinus sylvestris) logs were used as material. | Turkish Journal of Agriculture and Forestry Research Article Turk J Agric For (2014) 38: 663-667 © TÜBİTAK doi: Effects of plasma treatment and sanding process on surface roughness of wood veneers 1, 1 2 2 2 Cenk DEMİRKIR *, İsmail AYDIN , Semra ÇOLAK , Gürsel ÇOLAKOĞLU Department of Woodworking Industry Engineering, Faculty of Technology of Of, Karadeniz Technical University, Trabzon, Turkey 2 Department of Forest Industry Engineering, Faculty of Forestry, Karadeniz Technical University, Trabzon, Turkey Received: Accepted: Published Online: Printed: Abstract: An ideal veneer surface is crucial for good panel properties in plywood manufacturing. The aim of this study was to compare plasma treatments and sanding (mechanical) processes with respect to the surface roughness of veneers. Rotary-cut veneers with a thickness of 2 mm from Scots pine (Pinus sylvestris) logs were used as material. After rotary peeling, veneer sheets were dried at 110 °C in a veneer dryer. Veneer sheets were divided into 4 main groups. The surfaces of the control veneer sheets were left untreated. Two different grits of sandpaper, 80 and 180, were used for sanding the surfaces of veneers. Plasma treatment was applied to the last veneer group with 3 different gases (oxygen, nitrogen, and ammonia) and 3 different plasma times (1 min, 5 min, and 15 min). The Mitutoyo Surftest SJ-301 instrument was used to determine surface roughness of samples. Average roughness (Ra), mean peak-to-valley height (Rz), and maximum roughness (Rmax) parameters were measured to evaluate the surface roughness of the samples based on DIN 4768. It was found that the smoothest veneer surfaces were obtained with the sanding processes. Surface roughness values (Rz) of veneer sheets sanded with 180 grit sandpaper were lower than those of veneers sanded with 80 grit sandpaper. Compared with the .

• Nông nghiệp
• Plasma treatment
• Sanding process
• Surface roughness
• Pinus sylvestris
• Rotary cut veneers
• Seed treatment
• Cold plasma
• Seed yield
• Okra [Abelmoschus esculentus (L )
• Field conditions
• Seed crop characters
• Bell pepper
• Bell pepper (Capsicum annuum L )
• Plasma treatment on growth parameters
• Nanochitosan treatment
• Seed coat etching
• Target action
• Wheat (Triticum aestivum L
• BMC Musculoskeletal Disorders
• Knee osteoarthritis
• Platelet rich plasma
• Potential benefits
• Anti inflammatory agents
• Công nghệ hóa
• Air plasma treatment
• Bamboo fiber
• Polypropylene composite application
• Hóa hữu cơ
• Atmospheric plasma treatment
• Mechanical properties
• Jute fiber
• Interface adhesion
• Tính chất sợi đay
• BMC Cancer
• Plasma amino acid profile
• Cervical cancer
• Endometrial cancer
• Ovarian cancer
• Curative treatment
• Tumor marker
• Demineralized bone matrix
• Bone non unions
• Surgical treatment
• Study the effects
• Knee intra articular
• Autologous platelet
• Rich plasma therapy
• Primary knee osteoarthritis
• Tạp chí khoa học
• Tạp chí y dược
• Y dược quân sự
• Supraspinatus tendonitis
• Autologous platelet rich plasma
• Ultrasound guided injection
• Chronic obstructive pulmonary disease
• Mesenchymal stem cell
• Oxygen arterial preasure
• Carbondioxite arterial preasure
• Hyaluronic acid
• Meta analysis
• Autologous subcutaneous adipose tissue
• Knee OA
• Intra articular injection
• Intra articular injection
• Clinical trial
• Structural deterioration
• Carpal tunnel syndrome
• Wrist splint
• Intraarticular injection
• Autosomal platelet rich plasma
• Several studies describe
• Biological therapies
• Human mesenchymal stem cells
• Autologous adipose
• Osteoarthritis treatment
• Journal of Chemistry
• Cadmium removal
• Water treatment
• Zeolite A
• Oxygen plasma
• Zeolite modification
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• kiến thức y học
• Advanced Therapies
• Celiac Disease
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• Patients – Experience
• Republic of Macedonia