[1]张峰,臧小榕,漆楚生,等. 轻质空心木质复合材料热和力学性能分析[J].西北林学院学报,2018,33(6):216-222.[doi:10.3969/j.issn.1001-7461.2018.06.34]
　ZHANG Feng,ZANG Xiao-rong,QI Chu-sheng,et al. Thermal and Mechanical Property Analysis of Light-Weight Hollow Wood Composites[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2018,33(6):216-222.[doi:10.3969/j.issn.1001-7461.2018.06.34]
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 轻质空心木质复合材料热和力学性能分析()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第33卷
期数:
2018年第6期
页码:
216-222
栏目:
出版日期:
2018-11-30

文章信息/Info

Title:
 Thermal and Mechanical Property Analysis of Light-Weight Hollow Wood Composites
文章编号:
1001-7461(2018)06-0216-07
作者:
 张峰; 臧小榕; 漆楚生; 张扬; 母军*
 （北京林业大学 木质材料科学与应用教育部重点实验室，木材科学与工程北京市重点实验室，北京 100083）
Author(s):
 ZHANG Feng; ZANG Xiao-rong; QI Chu-sheng; ZHANG Yang; MU Jun*
 (Key Laboratory of Wood Material Science and Utilization of Ministry of Education,Beijing City Key Laboratory of Wood Science and Engineering,Beijing Forestry University,Beijing 100083,China)
关键词:
 ; 空心木质复合材料; PVC管; 力学性能; 导热系数; 有限元分析
Keywords:
 ; hollow wood composite;  PVC tube;  mechanical property;  thermal conductivity;  finite element analysis
分类号:
S781.2
DOI:
10.3969/j.issn.1001-7461.2018.06.34
文献标志码:
A
摘要:
 将PVC空心塑料管嵌入至木质纤维板坯中，通过热压法制备轻质木质复合材料（HWC），分析了PVC管空气体积比对HWC的力学性能和热性能的影响，并对热性能进行仿真分析。结果表明，通过嵌入PVC空心塑料管，可以制备密度0.3 g/cm3的轻质木质复合材料，HWC断面密度呈双“M”型分布，表层密度最小。随着PVC管内空气体积比的增加，HWC静曲强度、弯曲弹性模量有增大的趋势，内结合强度减小，对24 h吸水厚度膨胀率和吸水率影响较小。PVC管内空气体积比对HWC的导热系数影响较小，且均<0.07 W/(m·K),并可通过合并Series模型和Parallel模型进行预测。PVC空心塑料管的嵌入阻碍了木质复合材料的热量传递，热传递测试降温1 h后HWC表面温度平均比对照组高0.93℃。
Abstract:
 Light-weight hollow wood composites (HWC) were manufactured by embedding PVC plastic tubes to fiberboard with hot-press.The influences of tube air volume ratio on thermal and mechanical properties of HWC were investigated and thermal simulation analysis was carried out.The results indicated that HWC with density of 0.3 g/cm3 could be successfully prepared by embedding PVC tubes.HWC vertical density profile curve was in “M” shape distribution while surface density was minimum.With the increase of tube air volume ratio,water absorption performance of HWC had no significant impact,modulus of rupture and modulus of elasticity tended to increase but bonding strength reduced.Thermal conductivity of all HWC was less than 0.07 W/(m·K) and could be forecasted by combining series model and parallel model.Hollow structure had obvious effect on inhibiting heat transfer,which led to a lower heat transfer rate of HWC than control group.Surface temperature was 0.93℃ higher than control group after cooling 1 h of heat transfer test.

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备注/Memo

备注/Memo:
 收稿日期：2017-12-09修回日期：2018-01-10
基金项目：北京林业大学中央高校基本科研业务费专项资金项目(2017PT04)；中国博士后科学基金项目（2016M591289）；“948”国家林业局引进项目(2015-4-50)。
作者简介：张峰，男，在读硕士，研究方向：木质复合材料与胶黏剂。E-mail:zhangfeng@bjfu.edu.com
*通信作者：母军，女，博士生导师，教授，研究方向：木质生物质材料利用。E-mail:mujun222@sina.com
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