Development of a chitosan-based adhesive. Application to wood bonding

被引：57
作者：
Patel, Anil K. [1 ]
Michaud, Philippe [1 ]
Petit, Emmanuel [2 ]
de Baynast, Helene [1 ]
Grediac, Michel [1 ]
Mathias, Jean-Denis [3 ]
机构：
[1] Univ Blaise Pascal, Clermont Univ, Inst Pascal UMR CNRS 6602, F-63174 Aubiere, France
[2] Univ Picardie Jules Verne, Lab Glucides UMR 6219, F-80039 Amiens, France
[3] IRSTEA, Lab Ingn Syst Complexes, F-63172 Aubiere, France
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2013年 / 127卷 / 06期
关键词：
adherend; bioadhesive; bond strength; chitosan; wood; WATER RESISTANCE; MOLECULAR-WEIGHT; STRENGTH; FILMS; CHITIN; FIBER;
D O I：
10.1002/app.38097
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The potential of chitosan (CS) as wood adhesive was investigated in this study. The measurement of the bond strength of different CS-based formulations was carried out using double-lap shear tests. The best formulation tested was an adhesive composed of 6% of CS, 1% of glycerol, and 5 mmol/L of trisodium citrate dehydrate. Best bond strength from this formulation was found to be equal to 6.0 MPa in dried conditions and 1.6 MPa in wet conditions (specimens immersed for 3 h at 30 degrees C in water). The failure in the double-lap joint tests mainly occurred in wood. Finally, the penetration of the rhodamine-labeled CS at 4% in the pinewood matrix was also studied using microtome and microscopy techniques to show interactions between CS-based adhesive and wood. (c) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2013
引用
收藏
页码：5014 / 5021
页数：8
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