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Quasi-Continuous Fibrils in Blends of Liquid Crystalline and Thermoplastic Polymers at Low LCP Concentration

A new technique for blending liquid crystalline polymers (LCPs) with thermoplastic polymers is described. With poly(ethylene terephthalate) as the matrix and Vectra B950 as the LCP, fibers containing quasi-continuous LCP-fibrils can be produced even when the LCP-concentration is very low (1 wt.-% LCP or less). Fragmentation tests show excellent bonding between the components. The elastic modulus of the LCP-containing fibers is significantly increased.