Dolomit ve Olivin ile Kızılçam Odun Yonga Karışımından Üretilen Deneme Levhalarının Özellikleri. Bölüm 1. Fiziksel Özellikler
Author:
ŞAHİN Halil Turgut1ORCID, YALÇIN Ömer Ümit2ORCID, KAYA Ali İhsan3ORCID, ÖZKAN Uğur2ORCID
Affiliation:
1. Isparta Uygulamalı Bilimler Üniversitesi Orman Fakültesi Orman Endüstri Mühendisliği Bölümü 2. ISPARTA UYGULAMALI BİLİMLER ÜNİVERSİTESİ 3. BURDUR MEHMET AKİF ERSOY ÜNİVERSİTESİ
Abstract
The effects of two mineral adducts (dolomite and olivine) as proportion in Calabrian pine wood chip based-experimental panels which bonded with synthetic adhesive (UF) were evaluated. It appears both minerals (P: calabrian pine wood chip-, X: Dolomite- Y: Olivine in composite proportions) improve the water repellent efficiency (WRE) properties at certain extent. In all experimental procedure, WRE increased with dolomite and olivine proportions higher than >10% in board formulations. The highest WRE of -34.2% and -35.4% were found with PX5 and PY5 samples that made with 1:1 (w/w) dolomite/wood and olivine/wood formulations, respectively. Like water sorption, similar trend was also found for thickness swelling (TS) properties. The lower TS values were found to be in range of -11.2 to -56.4% for dolomite-, and -55.5 to -69.5% for olivine based panels, respectively. Only samples of PX1, which produced 1:9 dolomite/wood chips (w,w, %) proportions, show higher IB value than control (PX0: 0.87 MPa vs PX1: 0.99 MPa) while rest of dolomite- pine wood panels show lower IB values. In contrast to dolomite, olivine appear to be improving effects on IB properties at certain conditions. The highest IB value of 1.21 MPa was found with sample PY4, which produced 4:6 olivine/wood chips (w,w, %) proportions, indicate approximately 39.1% higher IB value than control. It is notable that olivine seems to more effective than dolomite at similar board properation formulations in terms of lowering TS, WA and creating higher internal bond strength properties than dolomite based panels at similar experimental conditions. However, only sample of PY1, made with 1:9 (w, w,%) olivine/wood and proportions, show higher bending strength (13.27 MPa) and elasticity (2468.2 MPa than control (PY0:12.75 MPa vs 2245.2 MPa).
Funder
Süleyman Demirel Üniversitesi
Publisher
Bartin Orman Fakultesi Dergisi
Reference15 articles.
1. Bergland, L. & Rowell, R.M. (2005). Wood composites, Ch.10, In: Handbook of wood chemistry and wood composites, Roger M. Rowell (Ed), CRC Press, New York, pp.279-302. 2. Cai, J., He, Y., Yu, X., Banks, S. W., Yang, Y., Zhang, X., ... & Bridgwater, A. V. (2017). Review of physicochemical properties and analytical characterization of lignocellulosic biomass. Renewable and sustainable energy reviews, 76, 309-322. 3. Emmanuel, E., Yong, L. L., Asadi, A., & Anggraini, V. (2020). Full-factorial two-level design in optimizing the contents of olivine and coir fiber for improving the strength property of a soft marine clay. Journal of Natural Fibers, 1-16. 4. Forest Products Laboratory (2010). Wood Handbook-Wood as an engineering material, General Technical Report FPL-GTR-190, Madison, WI, 508p. 5. Karumuri, S., Hiziroglu, S., & Kalkan, A. K. (2017). The distribution and role of nanoclay in lignocellulose–polymer blends. RSC advances, 7(31), 19406-19416.
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