Ayrilmis Nadir, Buyuksari Umit, Avci Erkan
Istanbul University, Forestry Faculty, Department of Wood Mechanics and Technology, Bahcekoy, Sariyer, 34473 Istanbul, Turkey.
Waste Manag. 2009 Sep;29(9):2553-7. doi: 10.1016/j.wasman.2009.05.017. Epub 2009 Jun 23.
Some physical and mechanical properties of oriented strandboards (OSBs) containing waste tire rubber at various addition levels based on the oven-dry strand weight, using the same method as that used in the manufacture of OSB. Two resin types, phenol-formaldehyde (PF) and polyisocyanate, were used in the experiments. The manufacturing parameters were: a specific gravity of 0.65 and waste tire rubber content (10/90, 20/80 and 30/70 by wt.% of waste tire rubber/wood strand). Average internal bond values of PF-bonded OSB panels with rubber chips were between 17.6% and 48.5% lower than the average of the control samples while polyisocyanate bonded OSBs were 16.5-50.6%. However, water resistance and mechanical properties of OSBs made using polyisocyanate resin were found to comply with general-purpose OSB minimum property requirements of EN 300 Type 1 (1997) values for use in dry conditions at the lowest tire rubber loading level (10%) based on the oven-dry panel weight. The tire rubber improved water resistance of the OSB panel due to its almost hydrophobic property. Based on the findings obtained from this study, we concluded that waste tire rubber could be used for general-purpose OSB manufacturing up to 10% ratio based on the oven-dry panel weight.
基于烘干刨花重量，采用与定向刨花板（OSB）制造相同的方法，研究了不同添加水平下含废旧轮胎橡胶的定向刨花板的一些物理和机械性能。实验中使用了两种树脂类型，即酚醛树脂（PF）和多异氰酸酯。制造参数为：比重0.65，废旧轮胎橡胶含量（按废旧轮胎橡胶/木刨花重量百分比计为10/90、20/80和30/70）。含橡胶颗粒的PF粘结OSB板的平均内结合强度值比对照样品的平均值低17.6%至48.5%，而多异氰酸酯粘结的OSB板则低16.5 - 50.6%。然而，基于烘干板重量，发现在最低轮胎橡胶添加量水平（10%）下，使用多异氰酸酯树脂制造的OSB的耐水性和机械性能符合EN 300 1型（1997）在干燥条件下使用的通用OSB最低性能要求值。由于其几乎疏水的特性，轮胎橡胶提高了OSB板的耐水性。基于本研究获得的结果，我们得出结论，基于烘干板重量，废旧轮胎橡胶可用于通用OSB制造，比例最高可达10%。
