EFFECTS OF TEMPERATURE ON THE BENDING PERFORMANCE OF WOOD-BASED PANELS

被引：1

作者：

Zhou, Jianhui ^{[1
]}

Hu, Chuanshuang ^{[1
]}

Hu, Shuofei ^{[1
]}

Yun, Hong ^{[1
]}

Jiang, Guifen ^{[1
]}

Zhang, Shikang ^{[1
]}

机构：

[1] S China Agr Univ, Fac Forestry, Dept Wood Sci & Engn, Guangzhou 510642, Guangdong, Peoples R China

来源：

BIORESOURCES | 2012年 / 7卷 / 03期

关键词：

Bending strength; Modulus of elasticity; Plywood; Medium density fiberboard; MECHANICAL-PROPERTIES; DIMENSIONAL STABILITY; STRENGTH; ELASTICITY; MODULUS; BEHAVIOR;

D O I：

10.15376/biores.7.3.3597-3606

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

The effect of temperature in the range from 25 degrees C to 175 degrees C on the bending performance of plywood and medium density fiberboard (MDF) has been studied with the ultimate purpose of optimizing the post-processing using radio frequency heating and improving the quality of the final products. Static 3-point bending tests were conducted on a universal testing machine inside a computer-controlled chamber. Results show that the bending strength (MOR) and modulus of elasticity (MOE) of plywood and MDF decrease with the increase of the temperature from 25 degrees C to 175 degrees C. The bending strength of plywood and MDF decreases with the increase of the exposure time. However, the effects of exposure time on MOE of plywood and MDF are not obvious. Plywood and 2.6 mm thick MDF show a typical elasto-plastic behavior, while 12 mm thick MDF does not exhibit any plastic behavior. It is recommended that the post-processing procedure should be completed within 15 minutes for both MDF and plywood.

引用

页码：3597 / 3606

页数：10

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