| Abstrakt: |
With the rapid development of science and technology, stricter requirements are essential for heat resistance, dimensional stability and precision molding of the organic materials. In this work, appropriate polyamide raw material was selected. And suitable process parameters were adjusted for preparing semi-aromatic polyamide spun fiber by twin-screw extruder. Considering the impact on thermal and mechanical properties, heat treatment under 160, 60 min was appropriate. And the melting point of post-treat semi-aromatic polyamide fibers was 300, elongation at break, Young's modulus and tensile strength was 6%, 12.3 GPa and 0.77GPa respectively, which shows that post-processing can greatly improve mechanical properties of semi-aromatic polyamide fibers. [ABSTRACT FROM AUTHOR] |
