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首页> 外文期刊>Wood Research >THE TENSILE SHEAR STRENGTH OF OUTDOOR TYPE PLYWOOD PRODUCED FROM FIR, ALNUS, PINE AND POPLAR WOOD
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THE TENSILE SHEAR STRENGTH OF OUTDOOR TYPE PLYWOOD PRODUCED FROM FIR, ALNUS, PINE AND POPLAR WOOD

机译:来自冷杉,桤木,松树和杨木生产的户外胶合板的拉伸剪切强度

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摘要

In this study, it is aimed to determine both the tensile-shear strengths of plywood that produced by using phenol formaldehyde resin from Uludag fir (Abies nordmanniana subsp. bornmulleriana Mattf.), alder (Alnus glutinosa L.), scots pine (Pinus sylvestris L.) and Samsun poplar (77/51 Populus deltoides Bartr.) trees rotary cut veneers combinations of poplar-pine, poplar-fir, poplar-alder and poplar wood along with the effect of wood types on adhesion quality of glue. According to standards TS 3969 EN 314-1, and TS EN 314-2 adhesion class 3, the test specimens were prepared and tested for the adhesion quality. The obtained data were analyzed statistically by using SPSS 22 statistical program. As a result, the tensile-shear strength values of poplar, pine-poplar, fir- poplar and alder-poplar plywood types were found to be as averages 1.34 N.mm(-2), 1.66 N.mm(-2), 2.18 N.mm(-2) and 2.46 N.mm(-2) respectively. Also, it was found that there was no significant difference between the alder poplar and fir-poplar plywood types about tensile-shear strength. Since these all plywood combinations are satisfied the required 1 N.mm(2) strength value according to TS EN 314-2, all plywood types in this study are of suitable quality for outdoor uses.
机译:在这项研究中,旨在确定通过使用Uludag FIR的酚醛树脂产生的胶合板的拉伸剪切强度(Bornmulleriana Mattf。),桤木(Alnus glutinosa L.),苏格兰松树(Pinus sylvestris L.)和Samsun Poplar(77/51 Populus Deltoides Bartr。)树旋转割饰贴花组合杨树,杨杉,杨桤木和白杨树的组合以及木材类型对胶水粘附质量的影响。根据标准TS 3969 EN 314-1,和TS EN 314-2粘附等级3,制备测试样品并测试粘合质量。通过使用SPSS 22统计程序统计地分析所获得的数据。结果,发现杨树,松树杨,燃烧室和桤木子胶合板类型的拉伸剪切强度值为平均为1.34 n.mm(-2),1.66 n.mm(-2), 2.18 n.mm(-2)和2.46 n.mm(-2)。此外,发现桤木杨树和杉木胶合板类型没有关于拉伸剪切强度的显着差异。由于这些所有胶合板组合都满足所需的1 n.mm(2)强度值,根据TS EN 314-2,本研究中的所有胶合板类型都是适合户外用途的合适质量。

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