Abstract
A theoretical investigation on fiber spinnability is undertaken, by formulating the force balance equation for a steady liquid thread under axial tension. In order to investigate the effect of the elastic properties of a spin dope, a simple model of a three-constantOldroyd fluid is chosen to solve the force balance equation. In the present study the effect of a hardening process (coagulation in wet spinning and cooling in melt spinning) is not considered, which confines our investigation to a very short distance from the face of the spinnerette. However, the approach taken in the present investigation is justifiable because in practice the breakdown of a thread in fiber spinning is believed to occur at a very short distance from the spinnerette. Prom the solution of the force balance equation a relation between the pullaway tension and jet stretch is obtained, with the elasticity of the spin dope as parameter. A criterion for spinnability is introduced in terms of the critical tensile stress which is the characteristic of a given spin dope. Some of the results are presented and discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.