| 刨花板吸水和吸湿特征及其对力学性能的影响 |
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| 引用本文： | 余德新,宋一然,范毡仔,徐剑莹. 刨花板吸水和吸湿特征及其对力学性能的影响[J]. 中南林业科技大学学报(自然科学版), 1992, 0(2) |
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| 作者姓名： | 余德新 宋一然 范毡仔 徐剑莹 |
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| 作者单位： | 中南林学院(余德新，宋一然)，福建林学院(范毡仔)，福建林学院(徐剑莹) |
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| 摘 要： | 对刨花板的吸水性、吸湿性及其对力学性能的影响进行测定,结果表明,浸泡时间、试件大小和水的温度,对吸水特征均有明显影响,在吸水厚度膨胀率和吸水率之间,存在线性相关关系;相对湿度的变化,对刨花扳的吸湿厚度膨胀率和平衡含水率亦有明显影响。特别是相对湿度达到65%以上时,影响更为显著,并导致其静曲强度和平面抗拉强度显著降低。
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| 关 键 词： | 刨花板 吸水性 吸湿性 静曲强度 平面抗拉强度 |
WATER ABSORPTION AND HYGROSCOPICITY OF PARTICLE BOARD AND THEIR EFFECTS ON ITS MECHANICAL PROPERTIES |
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| Yu Dexin Song Yiran. WATER ABSORPTION AND HYGROSCOPICITY OF PARTICLE BOARD AND THEIR EFFECTS ON ITS MECHANICAL PROPERTIES[J]. , 1992, 0(2) |
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| Authors: | Yu Dexin Song Yiran |
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| Affiliation: | Yu Dexin Song Yiran (Central-south Forestry College) Fang Zhanzi Xu Jianying (Fujian Forestry College) |
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| Abstract: | Water absorption and hygroscopicity of the UF-particieboard and their effects on its mechanical properties have been studied. The results show that the water temperature, specimen size and soaking time have a remarkable effect on water absorption, and a linear relationship exists between the water absorption and thickness swelling of the particle board. The change of the relative humidity also has a pronounced effect on the equilibrium moisture content and thickness swelling, especially when the relative humidity is over 65%, the effect is even more striking, causing the static bending strength and bonding strength to decrease markedly. |
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| Keywords: | particle board water absorption hygroscopicity static bending strength bonding strength |
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