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Glued-bamboo composite based on a highly cross-linked cellulose-based adhesive and an epoxy functionalized bamboo surface.
Kang, Weiyan; Ni, Kelu; Su, Hang; Yang, Hongxing; Zhang, Xu; Li, Hongshan; Ran, Xin; Wan, Jianyong; Du, Guanben; Yang, Long.
Afiliação
  • Kang W; Yunnan Province Key Lab of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China.
  • Ni K; Yunnan Province Key Lab of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China.
  • Su H; Yunnan Province Key Lab of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China.
  • Yang H; Yunnan Province Key Lab of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China.
  • Zhang X; Yunnan Province Key Lab of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China.
  • Li H; Yunnan Province Key Lab of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China.
  • Ran X; Yunnan Province Key Lab of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China.
  • Wan J; Yunnan Province Key Lab of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China.
  • Du G; Yunnan Province Key Lab of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China; International Joint Research Center for Biomass Ma
  • Yang L; Yunnan Province Key Lab of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China; International Joint Research Center for Biomass Ma
Int J Biol Macromol ; 270(Pt 2): 132500, 2024 Jun.
Article em En | MEDLINE | ID: mdl-38763234
ABSTRACT
Bamboo, as a renewable bioresource, exhibits advantages of fast growth cycle and high strength. Bamboo-based composite materials are a promising alternative to load-bearing structural materials. It is urgent to develop high-performance glued-bamboo composite materials. This study focused on the chemical bonding interface to achieve high bonding strength and water resistance between bamboo and dialdehyde cellulose-polyamine (DAC-PA4N) adhesive by activating the bamboo surface. The bamboo surface was initially modified in a directional manner to create an epoxy-bamboo interface using GPTES. The epoxy groups on the interface were then chemically crosslinked with the amino groups of the DAC-PA4N adhesive, forming covalent bonds within the adhesive layer. The results demonstrated that the hot water strength of the modified bamboo was improved by 75.8 % (from 5.17 to 9.09 MPa), and the boiling water strength was enhanced by 232 % (from 2.10 to 6.99 MPa). The bonding and flexural properties of this work are comparable to those of commercial phenolic resin. The activation modification of the bamboo surface offers a novel approach to the development of low-carbon, environmentally friendly, and sustainable bamboo engineering composites.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Celulose / Adesivos / Sasa Idioma: En Revista: Int J Biol Macromol Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Celulose / Adesivos / Sasa Idioma: En Revista: Int J Biol Macromol Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China