J. Mater. Sci. Technol. ›› 2025, Vol. 205: 247-257.DOI: 10.1016/j.jmst.2024.03.074

• Research Article • Previous Articles     Next Articles

Sustainable compression-molded bamboo fibers/poly(lactic acid) green composites with excellent UV shielding performance

Binqi Feia,b, Haiyan Yangb, Jing Yangb, Dawei Wangb,*, Hua Guoc, Hua Houd, Saad Melhie, Ben Bin Xuf, Hamdy Khamees Thabetg, Zhanhu Guof,*, Zhengjun Shia,b,*   

  1. aKey Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, China;
    bKey Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, China;
    cShanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China;
    dCollege of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China;
    eDepartment of Chemistry, College of Science, University of Bisha, Bisha, 61922, Saudi Arabia;
    fDepartment of Mechanical and Construction Engineering, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK;
    gDepartment of Chemistry, College of Sciences and Arts, Northern Border University, Rafha 91911, Saudi Arabia
  • Received:2024-01-28 Revised:2024-03-25 Accepted:2024-03-25 Published:2025-01-10 Online:2024-05-01
  • Contact: *E-mail addresses: wdwchem@163.com (D. Wang), zhanhu.guo@northumbria.ac.uk (Z. Guo), shizhengjun1979@swfu.edu.cn (Z. Shi)

Abstract: The increasing deployment of electronics in everyday life has generated great concerns regarding the effective disposal of waste from these components. Here, we focused on a facile sustainable and economical strategy to provide ideas for this issue. This strategy relied on using appropriate mechanical treatment and sodium lignosulfonate coating to improve the dispersion and interfacial compatibility of bamboo fibers in poly(lactic acid). By optimising the particle size and concentration of sodium lignosulphonate, high value-added and green composites were prepared using sectional pressurization with a venting procedure. The treated composite displayed an ultra-smooth surface (roughness of 0.592 nm), impressive transient properties (disintegration and degradation behaviour after 30 d), and outstanding ultraviolet (UV) shielding properties (100 %). These properties hold the promise of being an excellent substrate for electronic devices, especially for high-precision processing, transient electronics, and UV damage prevention. The satisfactory interfacial compatibility of the composites was confirmed by detailed characterisation regarding the related physicochemical properties. This investigation offers a sustainable approach for producing high value-added green composites from biomass and biomass-derived materials.

Key words: Bamboo fibers, Poly(lactic acid), Interfacial compatibility, Sodium lignosulfonate