[1]张乃华,李康,李延军,等.高温水热处理对马尾松木材物理力学性能的影响[J].浙江林业科技,2017,37(05):35-41.[doi:10.3969/j.issn.1001-3776.2017.05.006]
 ZHANG Nai-hua,LI Kang,LI Yan-jun,et al.Effect of High Temperature Hydrothermal Treatment on Physical and Mechanical Properties of Pinus Massoniana Wood[J].Journal of Zhejiang Forestry Science and Technology,2017,37(05):35-41.[doi:10.3969/j.issn.1001-3776.2017.05.006]
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高温水热处理对马尾松木材物理力学性能的影响()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
37
期数:
2017年05期
页码:
35-41
栏目:
出版日期:
2017-11-30

文章信息/Info

Title:
Effect of High Temperature Hydrothermal Treatment on Physical and Mechanical Properties of Pinus Massoniana Wood
作者:
张乃华1李康1李延军12蔡绍祥1张婧1孙桐1王丽2
1. 南京林业大学 材料科学与工程学院,江苏 南京 210037;2. 浙江农林大学 工程学院,浙江 杭州 311300
Author(s):
ZHANG Nai-hua1LI Kang1LI Yan-jun12CAI Shao-xiang1ZHANG Jing1SUN Tong1WANG Li2
1. Nanjing Forestry University, Nanjing 210037, China; 2. Zhejiang A& F University, Hangzhou 311300, China
关键词:
高温水热处理马尾松木材物理力学性能
Keywords:
high temperature hydrothermal treatment Pinus massoniana wood physical and mechanical properties
分类号:
S781.3
DOI:
10.3969/j.issn.1001-3776.2017.05.006
文献标志码:
A
摘要:
以40 年生马尾松Pinus massoniana 木材为研究对象,采用不同水热处理温度(140,160,180,200℃)和不同时间(1,3,5 h)的热处理工艺,研究处理前后马尾松木材试件的主要物理力学性能变化。结果表明,试件的平衡含水率和失重率随水热处理温度升高和时间的延长呈逐渐降低的趋势;140℃处理的试件的气干密度、全干密度和基本密度随处理时间的增加变化不明显,但160,180,200℃处理下,随着处理温度升高和处理时间的延长,比处理前的试件均有所降低;马尾松木材的抗弯强度和抗弯弹性模量均随水热处理温度升高和时间的延长呈逐渐降低的趋势。实验显示,高温水热处理改性马尾松木材物理力学性能的较佳工艺为:处理温度160℃,处理时间3 h。
Abstract:
Experiments were conducted on different℃ treatments of temperature (140℃, 160℃, 180℃ and 200℃) and duration(1, 3 and 5hours) onPinus massoniana wood from 40-year stand in Fujian province. The result demonstrated that equilibrium moisture content and mass loss rate ofspecimen decreased with increase of temperature and duration. Basic, air-dry, dry density of specimen treated at 140℃had no obvious changes withduration of treatment, but decreased with duration and at 160℃, 180℃ and 200℃. Bending strength(MOR) and modulus of elasticity(MOE)ofspecimendecreased gradually with temperature and duration of treatment. The experiment concluded that the optimal technology for better physicaland mechanical properties of P. massoniana wood by high temperature hydro-thermal treatment was 160℃for 3hours.

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备注/Memo

备注/Memo:
收稿日期:2017-04-25 ;修回日期:2017-07-30基金项目:国家自然科学基金(31570552);浙江省自然科学基金(LY16C160009);南京林业大学高层次人才科研启动基金(GXL2014068)资助作者简介:张乃华,本科,从事木材科学与工程研究;337256573@qq.com。通信作者:李延军,博士,教授,从事木材科学与技术研究;lalyj@126.com。
更新日期/Last Update: 2017-10-20