论文部分内容阅读
采用平板与不同浓度的氯化钠(NaCl)溶液为接收介质制备熔体静电纺聚对苯二甲酸乙二酯(PET)纤维膜,并借助扫描电子显微镜(SEM)和差示扫描量热仪(DSC)探讨了水溶液接收法对PET纤维膜几何结构、纤维形貌及热学性质的影响。结果表明,水溶液接收可制备三维锥状结构的纤维膜,随着NaCl溶液浓度的增加纤维膜的厚度逐渐降低,而纤维膜底面半径与锥角逐渐增加。以0.5mol/L NaCl溶液为接收介质制得的PET纤维膜的厚度为35.9mm,玻璃化温度为72.32℃,结晶温度为127.97℃,熔融温度为254.25℃,结晶度为15.5%。
The melt-electrospun polyethylene terephthalate (PET) fiber membranes were prepared by using plate and different concentrations of sodium chloride (NaCl) solution as the receiving medium. Scanning electron microscopy (SEM) and differential scanning calorimeter (DSC) The influence of aqueous solution receiving method on the geometry, fiber morphology and thermal properties of PET fiber membrane was investigated. The results show that the aqueous solution can be prepared to fabricate three-dimensional conical fiber membrane. With the increase of NaCl concentration, the thickness of the membrane gradually decreases, while the radius and cone angle of the fiber membrane gradually increase. The thickness of PET fiber membrane prepared with 0.5mol / L NaCl solution as receiving medium was 35.9mm, the glass transition temperature was 72.32 ℃, the crystallization temperature was 127.97 ℃, the melting temperature was 254.25 ℃ and the crystallinity was 15.5%.