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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and properties of PET/SiO _2 composite microanofibers by a laser melt-electrospinning system
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Preparation and properties of PET/SiO _2 composite microanofibers by a laser melt-electrospinning system

机译：激光熔融电纺丝法制备PET / SiO _2复合微纤维/纳米纤维及其性能

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摘要

Poly(ethylene terephthalate) (PET)/SiO _2 composite microanofibers 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 microanofibers 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.
机译：采用激光熔纺技术成功地制备了聚对苯二甲酸乙二醇酯（PET）/ SiO _2复合纳米纤维。获得了直径为500nm至7μm的纤维。通过扫描电子显微镜（SEM）研究了激光电流和外加电压对纤维形态的影响，结果表明工艺参数与纤维直径之间的关系较为复杂。 EDS分析证实在PET纤维基质中存在SiO _2。用X射线衍射（XRD）分析和差示扫描量热法（DSC）研究了电纺PET / SiO _2微纤维/纳米纤维的结晶行为，发现电纺纤维呈现非晶态。分别在120和160°C热处理1 h后，纤维显示出高结晶度。用热重-差热分析（​​TG-DTA）研究了纤维的热性能，结果表明，电纺PET / SiO _2复合纤维在用作纤维材料时，与PET纤维相比，不是热稳定性的有效差异。

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