Development of high-tenacity, high-modulus poly(ethylene terephthalate) filaments via a next generation wet-melt-spinning process
| Autor: | Huseyin Avci, Lassad Nasri, Samuel M. Hudson, Richard Kotek, Mesbah Najafi, Joshua H. Yoon |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Polymers and Plastics Scanning electron microscope 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Isothermal process 0104 chemical sciences Crystallinity Differential scanning calorimetry Ultimate tensile strength Materials Chemistry Fiber Melt spinning Composite material 0210 nano-technology Tensile testing |
| Zdroj: | Polymer Engineering & Science. 57:224-230 |
| ISSN: | 0032-3888 |
| DOI: | 10.1002/pen.24406 |
| Popis: | In this study, PET (intrinsic viscosity of 1.05 dl/g) was melt processed with a horizontal isothermal bath (HIB) treatment. Tensile properties of PET fiber samples were highly increased by using the HIB. The process-structure-property relationship of control (no HIB) and HIB fiber samples were characterized by tensile testing, differential scanning calorimetry, birefringence measurement, scanning electron microscopy and hot-air shrinkage measurements. It was found that HIB fiber samples, which had been subjected to post-drawing process, had a high degree of molecular chain orientation, that is, a high birefringence, high crystallinity and a fibrillar structure. The best tensile property acquired from a HIB-drawn PET fiber sample was 10.24 g/d in tenacity, 114.17 g/d in modulus, and 13.49% in elongation at break. Applying the HIB in the melt spinning process was simple and required only small process space; hence, it is cost effective. In addition, acquiring HIB fiber samples was successful at a final take-up speed of 2,500 m/min. Hence, this HIB-assisted melt spinning technology has a high potential to be used in industries for technical textiles applications. POLYM. ENG. SCI., 2016. © 2016 Society of Plastics Engineers |
| Databáze: | OpenAIRE |
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