Abstract
Ultra-high molecular weight polyethylene (UHMWPE) fibers are recognized as an exemplary material due to their exceptional mechanical properties. Nevertheless, the inherent surface inertia and the absence of functional groups result in suboptimal adhesion to resin matrices, thereby restricting their extensive application within the field of composite materials. This study investigates the composite effects of UHMWPE fibers modified with tannic acid (TA), a polyphenolic compound prevalent in natural flora, in conjunction with polyester. The bonding effect between the resultant composite yarn and resin coating is assessed through the evaluation of tensile strength, abrasion resistance and apparent properties of the composite yarn. The results indicate that at a twist of 300 T/m, the breaking strength of tannic acid-modified UHMWPE/PET (TA-UHMWPE/PET) yarn increases by 108.16% and 40.77% compared to un-twisted UHMWPE and UHMWPE/PET, respectively. At 350 T/m, the abrasion cycle count is 2.46 times greater than that of UHMWPE/PET, with only a difference of 51 cycles compared to UHMWPE/UHMWPE. Following bonding with resin, the surface of TA-UHMWPE/PET yarn exhibits improved smoothness and a reduction in surface voids. This method offers numerous advantages, including environmental sustainability, non-destructive processing and potential for industrial applications.
Published Version
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