Akyildiz M Hakan, Kol Hamiyet Sahin
Kastamonu University, Faculty of Forestry, Department of Forest Industrial Engineering, 37100 Kastamonu, Turkey.
J Environ Biol. 2010 May;31(3):351-5.
The aim of this study is to determine some physical and mechanical properties of Paulownia tomentosa wood grown in Turkey. The samples trees harvested from Kargi in Corum. Physical properties including air-dry density oven-dry density basic density swelling, shrinkage and oven-dry and air-dry thermal conductivity coefficients; mechanical properties including bending strength, modulus of elasticity in bending, compression strength parallel to grain, hardness, bonding strength were analyzed. Paulownia tomentosa wood's air dry and oven dry densities were determined as 0.317 and 0.294 g cm(-3); basic density was determined as 0.272 g cm(-3); volumetric shrinkage and swelling were determined as 7.78 and 8.41%; tangential, radial and longitudinal air-dry thermal conductivity coefficients were determined as 0.089, 0.090 and 0.133 kcal/mh degrees C, respectively. Fiber saturation point (FSP) was found 28.79%; bending strength, Modulus of elasticity in bending, compression strength parallel to grain and Brinell hardness values (parallel and perpendicular to grain) were determined as 43.56 N mm(-2), 4281.32 N mm(-2), 25.55 N mm(-2), 2.01 kgf mm(-2) and 0.88 kgf mm(-2), respectively. Consequently paulownia wood can be widely used for various purposes such as house construction, furniture making, pulp and paper and handicrafts.
本研究的目的是确定生长在土耳其的绒毛泡桐木材的一些物理和力学性能。样本树采自科鲁姆省的卡尔吉。分析了包括气干密度、绝干密度、基本密度、干缩、湿胀以及绝干和气干热传导系数在内的物理性能；还分析了包括抗弯强度、抗弯弹性模量、顺纹抗压强度、硬度、胶合强度在内的力学性能。绒毛泡桐木材的气干密度和绝干密度分别测定为0.317和0.294 g/cm³；基本密度测定为0.272 g/cm³；体积干缩和湿胀分别测定为7.78%和8.41%；弦向、径向和纵向气干热传导系数分别测定为0.089、0.090和0.133 kcal/m·h·℃。纤维饱和点（FSP）为28.79%；抗弯强度、抗弯弹性模量、顺纹抗压强度以及布氏硬度值（平行和垂直于纹理）分别测定为43.56 N/mm²、4281.32 N/mm²、25.55 N/mm²、2.01 kgf/mm²和0.88 kgf/mm²。因此，泡桐木材可广泛用于房屋建筑、家具制造、纸浆和造纸以及手工艺品等各种用途。
