Analysis of the factors affecting the performance of 1.1g fragment of ultra-high molecular weight polyethylene uni-directional composite fabrics
This paper uses ultra-high molecular weight polyethylene(UHMWPE)fiber and polyurethane adhesive as the main materials to prepare uni-directional(UD)composite fabrics with different structures,and uses molding technology to press them into polyethylene(PE)plates.The effects of fiber properties,adhesive properties,mass fraction of adhesive and UD composite fabrics areal density on the 1.1 g fragmentation V50 value of PE plates are studied.The results indicate that a higher tensile strength of the fibers leads to a higher V50 value.The tensile properties of the adhesive,as well as the interfacial properties between the adhesive and PE fibers,correlate with the V50 value,both excessively high and low values are unfavorable for the enhancement of the V50 value.Lower mass fraction of adhesive results in a higher V50 value,yet the reduction in mass fraction of adhesive must not compromise the subsequent processing and usage performance of the UD composite fabrics.Furthermore,a lower areal density of the UD composite fabrics corresponds to a higher V50 value.
PE fiberUD composite fabricsadhesivePE plate1.1g fragment
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