CAJ | 학술논문

基于高压静电纺丝技术，用聚乙烯吡咯烷酮（ PVP）作模板剂，正硅酸乙酯作硅源，无水乙醇和去离子水作共溶剂，盐酸作催化剂，通过溶胶-凝胶法在不同纺丝电压、接收距离条件下合成了SiO2纤维.利用SEM、XRD、EDS 及FTIR等方法对其进行了表征.结果表明：经过焙烧，PVP已完全从SiO2纤维中去除；较高的纺丝电压和较大的接收距离有助于得到形貌较好、直径均匀、表面光滑的SiO2纤维；最佳纺丝电压为25 kV，接收距离为18 cm.
기우고압정전방사기술，용취을희필각완동（ PVP）작모판제，정규산을지작규원，무수을순화거리자수작공용제，염산작최화제，통과용효-응효법재불동방사전압、접수거리조건하합성료SiO2섬유.이용SEM、XRD、EDS 급FTIR등방법대기진행료표정.결과표명：경과배소，PVP이완전종SiO2섬유중거제；교고적방사전압화교대적접수거리유조우득도형모교호、직경균균、표면광활적SiO2섬유；최가방사전압위25 kV，접수거리위18 cm.
Silica nanofiber has been expected to applied in dental composites because of its big length-diameter ratio and excellent mechanical properties. In this paper,sol-gel method was combined with electrospinning tech-nique to synthesize silica fibers under different voltages and receiving distances. Polyvinylpyrrolidone( PVP ), tetraethyl orthosilicate( TEOS ),ethanol and deionized water,HCl were respectively used as template,silica source,cosolvent and catalytic agent. Scanning electron microscopy( SEM),X-ray diffraction( XRD),Energy dispersive X-Ray spectroscopy( EDS),FTIR spectra were used to characterize silica fibers. The results reveal that PVP template has been calcined from silica fiber;higher voltage and the longer receving distance contribute to better microscopy,uniform diameter,smooth surface of silica fiber;and the best electrospinning voltage is 25 kV,the receiving distance is 18 cm.