Fabrication and characterization of impact-resistant core-spun yarn fabrics with a hydroxylated fullerene-strengthened shear thickening fluid.

ABSTRACT: Shear thickening fluid (STF) is investigated to strength soft armor; however, its impact resistance still does not meet practical needs. In this work, a small amount of hydroxylated fullerene (C₆₀) was mixed with STF to improve the thickening ratio. First, furfuryl alcohol (FA) was grafted onto C₆₀ through a Diels-Alder (D-A) reaction to improve the dispersity of C₆₀ in the STF. Sheath-core composite fibers (polyketone (PK) as the sheath and STF as the core) were then fabricated by coaxial electrospinning. Finally, composite fibers containing STF and C₆₀ were wrapped on the surface of aramid yarns to fabricate a core-spun yarn. Under impact, these core-spun yarns manifested the characteristics of aramid fibers and the thickening advantages of the

SUBMITTER: Cai W 

PROVIDER: S-EPMC9038179 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature