How to obtain a high tensile strength and / or synthetic organic aromatic heterocyclic rod fiber or film having a high modulus of elasticity

摘要

A method of obtaining a film or synthetic organic aromatic heterocyclic rod fiber having a high modulus of elasticity and / or are provided and high tensile strength. Step or to an aromatic heterocyclic rod fiber and spun synthetic organic polymer, a step of obtaining aromatic heterocyclic rod film the synthetic organic polymers, in the presence of a processing aid, this method is the processing aid temperatures higher than -50 ℃ and lower than the boiling point of, and tension in the 10 to 95% of the breaking strength film or fiber, comprising the steps of applying a load to the fiber or film, and it removes the processing aid / or comprises a step of performing a heating step at a tension 10 to 95% of the film or fiber breaking strength.