Citric acid as waterproofing additive in butt joints linear wood welding

被引：52

作者：

Amirou, S. ^{[1
]}

Pizzi, A. ^{[1
,2
]}

Delmotte, L. ^{[3
]}

机构：

[1] Univ Lorraine, LERMAB, Epinal, France

[2] King Abdulaziz Univ, Dept Phys, Jeddah, Saudi Arabia

[3] Univ Haute Alsace, CNRS UMR 7361, Mat Sci Inst Mulhouse, Mulhouse, France

来源：

EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS | 2017年 / 75卷 / 04期

关键词：

Welding; Lignin; Citric Acid; Weld Line; Friction Welding;

D O I：

10.1007/s00107-017-1167-x

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Citric acid was used to improve resistance to water of the welded joint of spruce along the end-grain-to-end-grain faces. The use of 10-20% citric acid as treatment during a very short time has been shown to markedly improve both the mechanical performance and the water resistance of welded spruce. Based on the results of the water resistance tests it appears that the application of citric acid as a natural waterproofing additive in wood welding is possible. The use of citric acid thus allows the preparation of welded wood joints satisfying the requirement of frequent short-term and long-term exposure to water. C-13 NMR analysis indicated that lignin modification of the welded material is related to the improvement of water resistance and shear properties of the welded joints.

引用

页码：651 / 654

页数：4

共 6 条

[1]

Amirou S, 2015, BIOTRIBOLOGY, V5, P61

[2]

[Anonymous], 2013, 301 NF EN AFNOR

[3]

[Anonymous], 1981, B51032 NF AFNOR

[4] Utilization of sweet sorghum bagasse and citric acid for manufacturing of particleboard I: Effects of pre-drying treatment and citric acid content on the board properties [J].