Chitosan-tannin adhesive: Fully biomass, synthesis-free and high performance for bamboo-based composite bonding

Shuyang Jiang; Shouqing Liu; Guanben Du; Shengtao Wang; Xiaojian Zhou; Jing Yang; Zhengjun Shi; Zhaojin Yang; Taohong Li

doi:10.1016/j.ijbiomac.2022.123115

Chitosan-tannin adhesive: Fully biomass, synthesis-free and high performance for bamboo-based composite bonding

Int J Biol Macromol. 2023 Mar 1:230:123115. doi: 10.1016/j.ijbiomac.2022.123115. Epub 2023 Jan 1.

Authors

Shuyang Jiang¹, Shouqing Liu², Guanben Du³, Shengtao Wang², Xiaojian Zhou⁴, Jing Yang⁵, Zhengjun Shi⁶, Zhaojin Yang⁷, Taohong Li⁸

Affiliations

¹ The Yunnan Provincial Key Lab of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China.
² The Key Laboratory of State Forestry and Grassland Administration on Highly-efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, China.
³ The Yunnan Provincial Key Lab of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China; International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming 650224, China. Electronic address: guanben@swfu.edu.cn.
⁴ The Yunnan Provincial Key Lab of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China; International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming 650224, China.
⁵ The Key Laboratory of State Forestry and Grassland Administration on Highly-efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, China; International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming 650224, China.
⁶ International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming 650224, China.
⁷ Kunming Feilin Panel Board Co. Ltd, Kunming 650224, China.
⁸ The Yunnan Provincial Key Lab of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China; The Key Laboratory of State Forestry and Grassland Administration on Highly-efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, China; International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming 650224, China. Electronic address: lith.cool@163.com.

PMID: 36599385
DOI: 10.1016/j.ijbiomac.2022.123115

Abstract

Inspired by phenol-amine chemistry of mussels, a synthesis-free and fully biomass adhesive composed of chitosan and tannin (CST) was successfully developed by a facile method. The performance of CST adhesive for bonding bamboo, wood and bamboo-wood substrates were tested. When 160 °C hot-press temperature was used, dry lap shear strength above 5.00 MPa was obtained. The CST adhesive has remarkable water resistance and low cure temperature as high wet shear strength of 2.37 MPa for plybamboo specimens was achieved after 3 h boiling in water even though low hot-press temperature of 100 °C was applied. Further, high strength of 1.78 MPa remained after 72 h boiling. With higher hot-press temperatures used, wet shear strength above 3.60 MPa was achieved. The adhesion performance for wood substrate was also superior to other phenol-amine adhesives reported in literatures. The bamboo-wood composites assembled with CST adhesive show excellent mechanical performance, specifically modulus of rupture (MOR) of 100-133 MPa and modulus of elasticity (MOE) of 10-13 GPa were achieved with different hot-press temperatures used. Given the advantages including outstanding water resistance, facile preparation, fully biomass, and low cure temperature, CST adhesive exhibited great potential to be an ideal alternative to formaldehyde-based resin for wood and bamboo bonding.

Keywords: Bamboo; Bioinspired; Chitosan-tannin adhesive; Composites; Wood.

MeSH terms

Adhesives
Biomass
Chitosan*
Phenols
Tannins
Water

Substances

Chitosan
Adhesives
Tannins
Water
Phenols