Effect of Processing Conditions in Preparation of Fiber Reinforced Composites utilizing Sheath-Core Bicomponent Spinning

摘要

Fiber reinforced composites were prepared through compression molding of sheath-core bicomponent fibers consisting of poly(ethylene terephthalate) (PET) (core)/poly(butylene terephthalate) (PBT) (sheath) and thermoplastic liquid crystalline polymer (TLCP) (core)/PET (sheath). Spunbonding process was applied for the preparation of fiber web for the compression molding at an appropriate temperature. In the sheath/core combinations of both PET/PBT and TLCP/PET, enhancement of structure development of the core components in the as-spun fibers was expected because of the delayed solidification of the sheath component in the melt spinning process. Structure of the as-spun fibers and the compression-molded composites were investigated using the wide-angle X-ray diffraction measurement. Mechanical proper ties of as-spun fibers and composites were also evaluated.