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

Abstract : 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 30C 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.
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Contributor : Migration Irstea Publications <>
Submitted on : Friday, May 15, 2020 - 10:18:36 PM
Last modification on : Tuesday, September 7, 2021 - 3:54:57 PM

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A.K. Patel, Patrick Michaud, E. Petit, H. de Baynast, M. Grédiac, et al.. Development of a chitosan-based adhesive. Application to wood bonding. Journal of Applied Polymer Science, Wiley, 2013, 127 (6), pp.5014-5021. ⟨10.1002/app.38097⟩. ⟨hal-02597203⟩



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