In situ composites based on blends of PEEK and thermotropic liquid crystalline polymer

A series of blends were prepared by mixing pellets of the thermotropic liquid crystalline polymers (TLCP) with poly (ether ether ketone)(PEEK) in the dry state under injection mouldingmolding conditions. The mechanical properties of blends were measured, and it is proved that the mechanical properties of blends are better than those of their matrix. Compared with the thermoplastic matrix, the tensile modulus and strength of the blends increased obviously, with the addition of only 2wt% LCP. At the same time, the addition of TLCP decreased the melt viscosity of the blends.