The use of inorganic (glass) fiber reinforcement to enhance the mechanial properties and reduce the anisotropy of in situ composites based on blends of liquid crystalline polymers (LCPs) with polyetherimide (PEI) is discussed. It was found that the tensile and flexural moduli are increased and the anisotropy is reduced with increasing glass content (when compared at equivalent LCP weight fractions). The creep compliance of the PEI/LCP composites is reduced upon ...
Liquid crystalline polymers can be used as viscosity modifiers for polymeric matrices in thermoplastic prepregs. The viscosity of polyphenylene sulfide (PPS) was found to be considerably lowered upon blending it with 20 weight percent of a liquid crystalline polymer (LCP60). However, the blend is unstable at elevated temperatures due to chemical changes upon addition of LCP60. The mechanical properties of the blend prepregs are considerably poorer than those of PPS ...
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