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毛竹线性振动摩擦焊接无胶胶合的研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2015年05期
Page:
135-138
Column:
研究论文
publishdate:
2015-10-20

Article Info:/Info

Title:
Study on the bonding strength of the linear-vibration mechanical welded Moso bamboo
Article ID:
1000-2006(2015)05-0135-04
Author(s):
ZHANG Haiyang ZHOU Xihe LU XiaoningWANG Zhiqiang ZHU Nanfeng
College of Materials Science and Technology, Nanjing Forestry University, Nanjing 210037, China
Keywords:
Moso bamboo wood welding gluing layer of the weld bonding strength microstructure
Classification number :
S781.9
DOI:
10.3969/j.issn.1000-2006.2015.05.022
Document Code:
A
Abstract:
The technology of wood mechanical welding which has been invented and developed for more than ten years has been proved to be a wood-gluing technology with great potential. The mechanical welding has been employed to glue Moso bamboo, which is also a lignin-cellulose biomaterial. The tensile-shear strength of the bamboo welded joints has been mainly studied. Besides that, scanning electron microscopy and FTIR were used to study the welded joints to understand the bonding line. The results showed that the tensile-shear strength of the welded joints increased and then decreased with the increase of the welding pressure. The gluing layers of the welded joints are composed of entangled bamboo fibers enveloped by the melted and flowed intercellular materials mainly lignin. The hemicelluloses in the welded joints was the main constituent which was thermally degradated by the heat generated by the mechanical vibration welding. The content ratio of the lignin was increased a little; but there was no such big difference between the cellulose of the welded joints and the natural bamboo.

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Last Update: 2015-10-15