Bio-based composites fabricated from wood fibers through self-bonding technology

Haoran Ye; Yang Wang; Qinghan Yu; Shengbo Ge; Wei Fan; Minglong Zhang; Zhenhua Huang; Maurizio Manzo; Liping Cai; Lishu Wang; Changlei Xia

doi:10.1016/j.chemosphere.2021.132436

Bio-based composites fabricated from wood fibers through self-bonding technology

Chemosphere. 2022 Jan;287(Pt 4):132436. doi: 10.1016/j.chemosphere.2021.132436. Epub 2021 Oct 2.

Authors

Haoran Ye¹, Yang Wang¹, Qinghan Yu¹, Shengbo Ge², Wei Fan³, Minglong Zhang⁴, Zhenhua Huang⁵, Maurizio Manzo⁵, Liping Cai⁶, Lishu Wang⁷, Changlei Xia⁸

Affiliations

¹ Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China.
² Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China; Aerospace Kaitian Environmental Technology Co., Ltd, Changsha, 410000, China. Electronic address: geshengbo@njfu.edu.cn.
³ School of Textile Science and Engineering & Key Laboratory of Functional Textile Material and Product of Ministry of Education, Xi'an Polytechnic University, Xi'an, Shanxi, 710048, China.
⁴ College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China. Electronic address: zmlong2008@126.com.
⁵ Department of Mechanical Engineering, University of North Texas, Denton, TX, 76207, USA.
⁶ Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China; Department of Mechanical Engineering, University of North Texas, Denton, TX, 76207, USA.
⁷ School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou, 412007, China.
⁸ Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China. Electronic address: changlei.xia@njfu.edu.cn.

PMID: 34610375
DOI: 10.1016/j.chemosphere.2021.132436

Abstract

Green composite processing technology of wood fibers is an inevitable choice for global sustainable development. In this research, waste poplar powder with different particle sizes was used to prepare glue-free biocomposites with good mechanical and waterproof properties by hot-molding. The biocomposites made of larger size wood powder had better tensile strength (40.3 MPa) and the biocomposites made of smaller size wood powder had the greater bending strength (50.5 MPa). The thickness swelling rate of the biocomposites was only 4.26% after soaking in water for 24 h. The cross-section morphology of the biocomposites showed that the cell wall collapses enhanced the interfacial bonding. Chemical analysis showed that lignin repolymerized with cellulose and hemicellulose for the vitrification transition. In addition, the biocomposites with excellent mechanical properties had no formaldehyde release, which can replace the traditional density boards made of adhesives and applied as furniture materials and in line with the concept of cleaner production.

Keywords: Biocomposites; Hot molding; Poplar powder; Self-bonding technology; Sustainable.

MeSH terms

Cellulose*
Lignin
Technology
Tensile Strength
Wood*

Substances

Cellulose
Lignin