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Preparation and properties of PET/SiO 2 composite micro/nanofibers by a laser melt‐electrospinning system
Author(s) -
Li Xiuyan,
Liu Huichao,
Wang Jiaona,
Li Congju
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.36274
Subject(s) - materials science , electrospinning , differential scanning calorimetry , crystallinity , scanning electron microscope , nanofiber , composite number , composite material , thermogravimetry , crystallization , thermal analysis , differential thermal analysis , chemical engineering , polymer , diffraction , thermal , optics , physics , meteorology , engineering , thermodynamics
Poly(ethylene terephthalate) (PET)/SiO 2 composite micro/nanofibers were successfully prepared by a laser melt‐electrospinning system. The fibers with diameter ranging from 500 nm to 7 μm were obtained. The effect of laser current and applied voltage on the fibers morphologies was investigated by scanning electron microscopy (SEM), and the results showed that the relationship of process parameters and fibers diameter was complicated. The EDS analysis confirmed the presence of SiO 2 in the PET fibers matrix. The crystallization behavior of the electrospun PET/SiO 2 micro/nanofibers was investigated using X‐ray diffraction (XRD) analysis and differential scanning calorimetry (DSC), and it was found that the as‐electrospun fibers exhibited an amorphous phase. After heat‐treatment at 120 and 160°C for 1 h, respectively, the fibers showed a high crystallinity. The thermal properties of fibers were studied using thermogravimetry‐differential thermal analysis (TG–DTA), and showed the electrospun PET/SiO 2 composite fibers was not effective difference of thermostability compared with PET fibers when used for fibers materials. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012