Determination of Contact Angle Values of Heat-treated Spruce (Picea abies) Wood with Image Analysis Program
Journal Title: Biomedical Journal of Scientific & Technical Research (BJSTR) - Year 2019, Vol 18, Issue 4
Abstract
Heat treatment of wood material increases the dimensional stability and prevents cracks on the wood surface formed by rain and harmful rays. In this study, the effect of heat treatment application on the contact angle values of heat-treated Spruce (Picea abies) wood was investigated. For this purpose, drop (5 μl) was dropped onto the surface with the help of a syringe and images were taken with the digital camera. The images were transferred to the computer and contact angle values were determined by using image analysis program. Surface contact angle values of the spruce wood were increased with the application of heat treatment. Therefore, it has been determined that the surface wettability properties decrease with heat treating application.One of the most important problems of wood materials is the dimensional change and decay with environmental impact [1- 4]. Chemical methods used in the wood material modification, are easily applied, and the wood protects against deterioration and decay of material [5]. Heat treatment; it is an alternative modification method to the use of chemicals in order to increase the dimensional stabilization of the wood material and to protect it against tree pests [6]. The aim of this study is to determine the surface contact angle values of heat treated (HT) and unheat treated (UHT) spruce wood and to evaluate about the dynamic wetting properties of this material.In this study were studied on spruce (Picea abies) wood. The timber (heat treated and unheat treated) used in the study was obtained from the forest products factory. Firstly, contact angles were determined by using contact angle method to determine surface wettability properties on spruce wood materials. For this purpose, 30 pieces samples have been cut (spruce; 15 heat treated materials, 15 unheat treated materials) in 20x20x30 mm dimensions. The samples were stored until they reached equilibrium humidity in air conditioning cabinet [7-10]. After the water drop (5 μl) was dropped onto the surface, images were taken every 5 seconds during 30 seconds. The images were transferred to the image analysis program ‘‘image j’’ and the contact angle values of the drops were determined by this program.The tangential (T) and radial (R) direction contact angle values of the spruce (heat treated-unheat treated) test samples are given in Table 1 and Figure 1. At the end of the 30th seconds (lowest) contact angle of the heat-treated spruce samples is 77.38° in the tangential direction and 72.74° in the radial direction. At the end of the 30th seconds (lowest) contact angle of the unheat treated spruce samples is 30,87° in the tangential direction and 27,37° in the radial direction. Kocaefe et al. (2008) determined that the surface contact angle of the wood material increases with the heat treatment application.
Authors and Affiliations
Semsettin Kilincarslan, Yasemin Simsek
Keywords
Related Articles
- EP ID EP621916
- DOI 10.26717/BJSTR.2019.18.003183
- Views 183
- Downloads 0
Research Progress on the Morphology of the Schlemm’s Canal
Glaucoma is one of the leading causes of blindness worldwide. High intraocular pressure (IOP) contributes to the development and progression of the condition. Although the specific mechanism underlying IOP increase in gl...
Non-Spanning Syringe Distractor: An Alternative Technique for Fracture Distal End Radius Fixation for Rural Areas of Developing Countries with Limited Resources
Introduction: Operative fixation of distal radius fractures is one of the most commonly performed orthopedic procedures. Though external fixator is a well-established method of treatment for unstable and comminuted fract...
Determination of Accurate Dose of ã- Irradiation causing Low-Dose Hyper-Radio-Sensitivity by Using Human Fibroblast Cells
Effects of low-dose radiation (LDR) on living organisms including human is still in argument, in spite of the LDR is ubiquitous in our environment. One prominent phenomenon by the LDR is hyper-radio-sensitivity (HRS). Th...
Trifluoroacetic Acid-Promoted Friedel-Crafts Aromatic Alkylation with Benzyl Alcohols
Following the 1945 report by Newman on the utility of Trifluoroacetic Acid (TFA) as a condensing agent for the acylation of anisole with acetic anhydride [1], TFA has found enormous utility in organic synthesis [1-3]. Fo...
Targeting Hyaluronan in Vascular Diseases with Special Reference to Diabetic Macroangiopathy
Vascular Extracellular Matrix (ECM) is a dynamic structure, which regulates blood vessel morphogenesis, provides organizational stability, and modulates various aspects of cell behavior [1]. Hyaluronan (HA) represents on...