摘要
配制了不同质量分数的聚乙烯醇(PEG)溶液和不同质量比的聚乙烯醇/聚乙二醇(PVA/PEG)混合溶液,经静电纺丝成纳米纤维,采用扫描电镜对纳米纤维进行形态分析,利用红外光谱和X射线衍射对其进行结构分析。研究结果表明:PVA/PEG质量比为6∶4、7∶4、8∶4、9∶4的混合溶液中均出现了凝胶状态;PVA/PEG质量比分别为9∶1、9∶2和9∶3时,PVA/PEG复合纳米纤维的形态最佳;不同质量比PVA/PEG复合纳米纤维的红外光谱图和X射线衍射图具有相似的变化规律,红外光谱图中839、963、1 103、1 239、1 282、1 341、2 895、3 305 cm-1处的吸收峰随着PEG质量分数的增加而增强,在,而在1 427 cm-1和1 714 cm-1处的吸收峰与PEG的质量分数无关;在19.3°和23.4°处的衍射峰随着PEG质量分数的增加而增加,出现在13.8°、29.3°和41.5°处的衍射峰信号强弱与PEG的质量分数无关。
The PEG solution with different mass fraction and PVA/PEG mixed solution with different mass ratio are prepared and then electrospun into nanofibers.The morphology of nanofibers is analyzed by scanning electron microscope,and the structure is analyzed by infrared spectrum and X-ray diffraction.The results show that the gel state is found in the mixture of PVA/PEG mass ratio of 6∶4,7∶4,8∶4 and 9∶4.When the mass ratio of PVA/PEG is 9∶1,9∶2 and 9∶3,the morphology of PVA/PEG composite nanofibers is the best.The infrared spectra and X-ray diffraction patterns of PVA/PEG composite nanofibers with different mass ratios show similar rules.The absorption peaks at 839 cm-1,963 cm-1,1103 cm-1,1239 at cm-1,1282 cm-1,1341 cm-1,2895 cm-1 and 3305 cm-1 in the infrared spectra are enhanced with the increase of PEG mass fraction,while the absorption peaks at 1427 cm-1 and 1714 cm-1 are independent of PEG mass fraction.The diffraction peaks at 19.3°and 23.4°increase with the increase of PEG mass fraction.The intensity of the diffraction peaks at 13.8°,29.3°and 41.5°are independent of the mass fraction of PEG.
作者
张显华
张延杰
甘润生
ZHANG Xianhua;ZHANG Yanjie;GAN Runsheng(College of Textile Engineering,Henan Institute of Engineering,Zhengzhou 450007,Henan,China)
出处
《上海纺织科技》
北大核心
2021年第6期36-38,54,共4页
Shanghai Textile Science & Technology
基金
河南工程学院博士基金项目(D2017005)
2018年度中国纺织工业联合会科技指导性项目计划(2018010)。
