Technical Grade Filaments from Polymer Blends of Nylon 6 and Nylon 66

Significant improvement in properties is observed for filaments produced from blending of nylon 6/nylon 66 by melt spinning process. As-spun blend filaments show higher drawability due to wider crystal size distribution and interfacial slippage at the boundary between both components. This results in improved mechanical properties with tenacity of ∼ 1.0 GPa and initial modulus of ∼ 7.0 GPa. The improved tensile properties are associated with increased orientation, possible reduction in fibrillar size and formation of interconnected fibrillar network.