Open Access
ARTICLE
Study on the Bonding Performance of the Moso Bamboo Dowel Welded to a Poplar Substrate Joint by High-Speed Rotation
Suxia Li1,2, Haiyang Zhang1,*, Biqing Shu1,3, Liangsong Cheng1, Zehui Ju1, Xiaoning Lu1,*
1 College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
2 College of Furniture and Art Design, Central South University of Forestry and Technology, Changsha, 410004, China
3 College of Civil Engineering, Yangzhou Polytechnic Institute, Yangzhou, 225127, China
* Corresponding Authors: Haiyang Zhang. ; Xiaoning Lu. Email:
(This article belongs to this Special Issue: Renewable and Biosourced Adhesives)
Journal of Renewable Materials 2021, 9(7), 1225-1237. https://doi.org/10.32604/jrm.2021.014364
Received 21 September 2020; Accepted 11 November 2020; Issue published 18 March 2021
Abstract
The wood friction welding technique with its high bonding strength, low cost, high efficiency, and without any
adhesive has been increasing concern in China. Moso bamboo (
Phyllostachys pubescens) and poplar (
Populus sp.)
are widely planted and used in the furniture industry, interior decoration, and wood structure construction in
China. The aim of this work was to investigate the bonding performance of moso bamboo dowel rotation welded
joints with different dowel/receiving hole diameter ratios. The results indicated that the ratio of dowel/receiving
hole diameter was an important parameter that influenced the welding performance. The bonding strength of the
bamboo-to-poplar welded joints at the optimal ratio of 10/7 was as high as 7.50 MPa, which was higher than that
of the beech (
Fagus sylvatica,
L.), schima (
Schima superba) dowels and PVAc glued joints. The temperature measurement results showed a peak temperature of bamboo dowel welding as high as 350–360°C. Some differences in
the temperature curves between each dowel/hole diameter ratio group were observed at the three different hole
depths, such as the friction time, peak temperatures, and stabilization time at the maximum temperature, which
could explain the differences in welding strengths between different ratios. The SEM results showed the temperature-induced softening, melting and flowing of cell-interconnected polymer material in the wood and bamboo structure. In addition, the bamboo fibers (mainly vascular bundles) were wrapped to form a dense continuous bonding
layer, similar to the reinforced concrete, thus producing a good bonding effect. The Fourier transform-infrared spectroscopy (FT-IR) analyses showed that the high temperature resulted in the increase of the lignin relative content
due to the degradation reaction of cellulose in the welding zone, which improved the bonding properties.
Keywords
Cite This Article
Li, S., Zhang, H., Shu, B., Cheng, L., Ju, Z. et al. (2021). Study on the Bonding Performance of the Moso Bamboo Dowel Welded to a Poplar Substrate Joint by High-Speed Rotation.
Journal of Renewable Materials, 9(7), 1225–1237.