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Development of a chitosan‐based adhesive. Application to wood bonding
Author(s) -
Patel Anil K.,
Michaud Philippe,
Petit Emmanuel,
de Baynast Hélène,
Grédiac Michel,
Mathias JeanDenis
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.38097
Subject(s) - adhesive , materials science , chitosan , composite material , penetration (warfare) , bond strength , shear strength (soil) , glycerol , chemistry , layer (electronics) , mathematics , organic chemistry , environmental science , operations research , soil science , soil water
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°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. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2013