Mechanical Properties of TLCP / Glass Fiber / Fumed silica composites

초록

Thermotropic liquid crystalline polymers (TLCPs) have been considered as one of the high-performance engineering plastics because of their good mechanical properties, excellent thermal endurance, chemical stability and ease of processing. It is expected that the addition of inorganic filler into TLCPs can reduce the raw material cost and improve the thermomechanical properties. However, it causes an increase of viscosity for the composites and leads to difficulties during processing of the composites. In this research, the glass fiber-reinforced TLCP composites and the TLCP / Glass Fiber / fumed silica nanocomposites were prepared by a melt blending process to investigate their processability and mechanical properties. The glass fiber-reinforced TLCP composites were exhibited high values of torque and total torque with increasing glass fiber. However, the TLCP / glass fiber / fumed silica nanocomposites were exhibited low values of torque and total torque with increasing fumed silica contents, and these nanocomposites were exhibited higher mechanical properties than the glass fiber-reinforced TLCP composites.