竹束单板层积材的吸湿性能

doi:10.3969/j.issn.1000-2006.2014.02.001

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南京林业大学学报（自然科学版） ›› 2014, Vol. 38 ›› Issue (02): 1-5.doi: 10.3969/j.issn.1000-2006.2014.02.001

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竹束单板层积材的吸湿性能

邓健超,陈复明,王戈^*,邱亚新,张丹,程海涛

国际竹藤中心,北京 100102

出版日期:2014-03-10 发布日期:2014-03-10
基金资助:
收稿日期:2013-05-23 修回日期:2013-09-26
基金项目:国家林业公益性行业科研专项项目(201204701)
第一作者:邓健超,硕士生。*通信作者:王戈,研究员。E-mail: wangge@ichr.ac.cn。
引文格式:邓健超,陈复明,王戈,等. 竹束单板层积材的吸湿性能[J]. 南京林业大学学报:自然科学版,2014,38(2):1-5.

Research on hygroscopicity of laminated bamboo-bundle veneer lumber

DENG Jianchao, CHEN Fuming, WANG Ge^*, QIU Yaxin, ZHANG Dan, CHENG Haitao

International Center for Bamboo and Rattan,Beijing 100102, China

Online:2014-03-10 Published:2014-03-10

摘要/Abstract

摘要： 采用慈竹经帚化后的竹束单板,制备了不同密度的竹束单板层积材(BLVL); 对板材进行不同温度的水浸处理,利用菲克定律分析了水浸泡温度及板材密度对竹束单板层积材吸湿行为的影响。结果表明:采用菲克第二定律扩散模型预测竹束单板层积材的长期吸湿行为具有一定的可行性,但在高温条件下(63 ℃以上)模型预测结果存在一定的偏差; 温度对竹束单板层积材的吸湿行为影响显著,随着水浸泡温度的升高,板材的吸湿速率加快,平衡时的吸湿质量增加率及厚度膨胀率增大; 密度对竹束单板层积材的吸湿行为影响较大,竹束单板层积材密度较大时,吸湿膨胀变形较小,板材的尺寸稳定性较好。

Abstract: This study employed the bloomed bamboo veneer bundle of Neosinocalamus affinis to produce different density of laminated bamboo-bundle veneer lumber(BLVL). The effect of soaking temperature and target density on moisture absorption behavior had been studied by Fick's law. The results showed that the diffusion modelof Fick's law provided a good prediction for long term hygroscopic behavior of BLVL. While some prediction errors existed at higher temperature(≥63 ℃), temperature had a significant effect on moisture absorption behavior, and the equilibrium ratio of weight gain and thickness swelling were enlarged with soaking temperature, rise and the moisture sorption rate was accelerated; The density of BLVL had certain effect on its moisture absorption behavior that the panel performed low hygroscopic expansion deformation and better dimensional stability with higher density.

中图分类号:

S781.3

邓健超,陈复明,王戈,等. 竹束单板层积材的吸湿性能[J]. 南京林业大学学报（自然科学版）, 2014, 38(02): 1-5.

DENG Jianchao, CHEN Fuming, WANG Ge, QIU Yaxin, ZHANG Dan, CHENG Haitao. Research on hygroscopicity of laminated bamboo-bundle veneer lumber[J].Journal of Nanjing Forestry University (Natural Science Edition), 2014, 38(02): 1-5.DOI: 10.3969/j.issn.1000-2006.2014.02.001.

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竹束单板层积材的吸湿性能

Research on hygroscopicity of laminated bamboo-bundle veneer lumber

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