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Start Over Author "Sun, Zeyu" Publication Year Range Last 10 years Journal materials letters
5 results on '"Sun, Zeyu"'

4. Polyethersulfone melt-spun fibers plasticized with epoxy oligomer

Author

Cheng Chao, Yong Liu, Muhuo Yu, Shu Zhu, Hui Zhang, Minqiang Jiang, Jinli Zhou, and Sun Zeyu

Subjects
Materials science, Rheometry, Scanning electron microscope, Mechanical Engineering, 02 engineering and technology, Epoxy, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, 0104 chemical sciences, Differential scanning calorimetry, Mechanics of Materials, visual_art, Ultimate tensile strength, visual_art.visual_art_medium, General Materials Science, Melt spinning, Composite material, Fourier transform infrared spectroscopy, 0210 nano-technology, Glass transition
Abstract

In order to prepare Polyethersulfone (PES) melt-spun fibers, epoxy (EP) oligomer was adopted as a novel plasticizer. The plasticization of EP on PES was investigated by differential scanning calorimetry (DSC), fourier transform infrared (FTIR), and rheological techniques. The results revealed that the glass transition temperature ( T g ), the complex viscosity ( η ∗ ), and melt processing temperature ( T mp ) of PES/EP blends decreased significantly with the increase of EP content. FTIR spectroscopy and rheological behavior demonstrated no signs of crosslinking reactions occurring between PES and EP molecules. Finally, PES melt-spun fibers were successfully obtained by using EP as a plasticizer, showing the highest tensile strength at 2.71 cN/dtex. The morphologies of the fibers observed by scanning electron microscopy (SEM) presented smooth and uniform surface, and compact fracture.

Published
2018

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