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首页> 外文期刊>Building and Environment >Water vapor sorption isotherm modeling of commercial oriented strand panel based on species groups and resin type
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Water vapor sorption isotherm modeling of commercial oriented strand panel based on species groups and resin type

机译：基于物种种类和树脂类型的商品取向刨花板水蒸气吸附等温线模型

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The moisture sorption response of commercial OSB panels at room temperature were examined as a function of humidity. The OSB panels were pine OSB—southern pine (Pinus spp.) mixed with 10-20% of hardwood, usually maple (Acer spp.); aspen OSB—nearly 100% aspen (Populas tremuloides Michx.); and, poplar OSB—40% yellow-poplar (Liriodendron tulipifera L.), 20% maple (Acer spp.), 10% pine and 30% unknown mixture. Two panels from each species group of OSB were chosen based on resin of phenol formaldehyde (PF) face and methyl di-isocyanate core or PF face and PF core. The multi-step sorption isotherm was modeled with the GAB isotherm model and the A/D ratio was determined from the data. Using the model, it was found that the heats of sorption were 6-8 times increased in OSB compared to solid wood. Also, based on the model analysis, the unimolecular layer was smaller compared to solid wood. The average A/D ratio, which is related to the hysteresis, was smaller compared to solid wood.
机译：检查了商用OSB面板在室温下的水分吸收响应与湿度的关系。 OSB面板是松木OSB-南松（Pinus spp。）与10-20％的硬木，通常是枫木（Acer spp。）混合；白杨OSB-接近100％的白杨（Populas tremuloides Michx。）；杨树OSB-40％的黄杨树（Liriodendron tulipifera L。），20％的枫树（Acer spp。），10％的松树和30％的未知混合物。基于酚醛（PF）面和二异氰酸甲酯核心或PF面和PF核心的树脂，从OSB的每个物种组中选择了两个面板。用GAB等温线模型对多步吸附等温线进行建模，并根据数据确定A / D比。使用该模型，发现OSB的吸附热是实木的6-8倍。同样，基于模型分析，单分子层比实木小。与滞后相关的平均A / D比与实木相比要小。

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