Properties of Experiemntal Panels Made from Mixture of Dolomite and Olivine with Calabrian pine Wood Particles. Part 1. Physical properties

Authors : Halil Turgut ŞAHİN, Ömer Ümit YALÇIN, Ali İhsan KAYA, Uğur ÖZKAN

Pages : 223-230

Doi:10.24011/barofd.1240472

View : 105 | Download : 168

Publication Date : 2023-08-15

Article Type : Research Paper

Abstract :The effects of two mineral adducts insert ignore into journalissuearticles values(dolomite and olivine); as proportion in Calabrian pine wood chip based-experimental panels which bonded with synthetic adhesive insert ignore into journalissuearticles values(UF); were evaluated. It appears both minerals insert ignore into journalissuearticles values(P: calabrian pine wood chip-, X: Dolomite- Y: Olivine in composite proportions); improve the water repellent efficiency insert ignore into journalissuearticles values(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 insert ignore into journalissuearticles values(w/w); dolomite/wood and olivine/wood formulations, respectively. Like water sorption, similar trend was also found for thickness swelling insert ignore into journalissuearticles values(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 insert ignore into journalissuearticles values(w,w, %); proportions, show higher IB value than control insert ignore into journalissuearticles values(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 insert ignore into journalissuearticles values(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 insert ignore into journalissuearticles values(w, w,%); olivine/wood and proportions, show higher bending strength insert ignore into journalissuearticles values(13.27 MPa); and elasticity insert ignore into journalissuearticles values(2468.2 MPa than control insert ignore into journalissuearticles values(PY0:12.75 MPa vs 2245.2 MPa);.
Keywords : Dolomit, olivin, yongalevha, kızılçam, direnç özellikleri, yüzeye dik çekme direnci, eğilme direnci

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