4.7 Article

High pressure laminates reinforced with electrospun cellulose acetate nanofibers

Journal

CARBOHYDRATE POLYMERS
Volume 254, Issue -, Pages -

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2020.117461

Keywords

High pressure laminates; Cellulose acetate nanofibers; Electrospinning; Mechanical properties

Funding

  1. National Natural Science Foundation of China [31470590]

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The CA nanofiber mats prepared by electrospinning significantly improved the mechanical properties and flame retardancy of the HPLs, showing great potential for enhancing the performance of composite materials.
In the work, the non-woven cellulose acetate (CA) nanofiber mats were prepared via electrospinning, and CA nanofiber were incorporated into the core layer of the high-pressure laminates (HPLs). When the concentration of CA was 16 wt%, SEM images demonstrated that the morphology of the CA nanofiber mat was the best, with an average diameter of 654 +/- 246 nm. When CA nanofiber mats were incorporated into the core layer of HPLs, the mechanical properties of the resulted HPLs composites were significantly improved. Specifically, the tensile strength and elongation at break of the nanofiber mats reinforced HPLs composites increased remarkably to 40.8 +/- 1.1 MPa and 27.9 +/- 0.9 %, respectively, which were nearly 6 times and 4.4 times higher than those of the pure HPLs. Furthermore, the incorporation of the CA nanofiber mats also significantly improved the flame retardancy of the HPLs, which was revealed from the thermogravimetric analysis (TGA) results.

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