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Morphological, Mechanical and Thermal Properties of Poly(lactic acid) (PLA)/Cellulose Nanofibrils (CNF) Composites Nanofiber for Tissue Engineering

  • Organic materials
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Journal of Wuhan University of Technology-Mater. Sci. Ed. Aims and scope Submit manuscript

Abstract

Composite nanofiber membranes based on biodegradable poly(lactic acid) (PLA) and cellulose nanofibrils (CNF) were produced via electrospinning. The influence of CNF content on the morphology, thermal properties, and mechanical properties of PLA/CNF composite nanofiber membranes were characterized by field scanning electron microscopy (FE-SEM), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and dynamic mechanical analysis (DMA), respectively. The results show that the PLA/CNF composite nanofibers with smooth, free-bead surface can be successfully fabricated with various CNF contents. The introduction of CNF is an effective approach to improve the crystalline ability, thermal stability and mechanical properties for PLA/CNF composite fibers. The Young’s moduli and tensile strength of the PLA/CNF composite nanofiber reach 106.6 MPa and 2.7 MPa when the CNF content is 3%, respectively, which are one times higher and 1.5 times than those of pure PLA nanofiber. Additionally, the water contact angle of PLA/CNF composite nanofiber membranes decreases with the increase of the CNF loading, resulting in the enhancement of their hydrophilicity.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Fuzhou University, Fuzhou, 350116, China

    Zhangqiang Yang  (杨章强) & Kaiping Peng

  2. School of Materials Science and Engineering, Fujian University of Technology, Fuzhou, 350118, China

    Xiaojie Li, Junhui Si  (司军辉) & Zhixiang Cui

  3. Fujian Provincial Key Laboratory of Advanced Materials Processing and Application, Fuzhou, 350118, China

    Xiaojie Li, Junhui Si  (司军辉) & Zhixiang Cui

Authors
  1. Zhangqiang Yang  (杨章强)
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  2. Xiaojie Li
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  3. Junhui Si  (司军辉)
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  4. Zhixiang Cui
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  5. Kaiping Peng
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Corresponding author

Correspondence to Junhui Si  (司军辉).

Additional information

Funded by the Outstanding Young Scientific Research Personnel Training Plan in Colleges and Universities of Fujian Province (No. GY-Z160146), the Research Fund of Fujian University of Technology (Nos. GY-Z15091, GY-Z160121), the External Cooperative Projects of Fujian Province (No. 2018I0001), the Young Teachers Education Research Project (No. JAT170377) and Fujian Province Undergraduate Training Program for Innovation and Entrepreneurship (No. 201810388048)

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Yang, Z., Li, X., Si, J. et al. Morphological, Mechanical and Thermal Properties of Poly(lactic acid) (PLA)/Cellulose Nanofibrils (CNF) Composites Nanofiber for Tissue Engineering. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 34, 207–215 (2019). https://doi.org/10.1007/s11595-019-2037-7

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  • DOI: https://doi.org/10.1007/s11595-019-2037-7

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