聚酰胺-6/蜂胶共混电纺纤维的表征
Characterization of polyamide-6/ propolis blended electrospun fibers.
作者信息
Razavizadeh Bibi Marzieh, Niazmand Razieh
机构信息
Research Institute of Food Science and Technology, Department of Food Safety and Quality Control, Mashhad, Iran.
Research Institute of Food Science and Technology, Department of Food Chemistry, Mashhad, Iran.
出版信息
Heliyon. 2020 Aug 26;6(8):e04784. doi: 10.1016/j.heliyon.2020.e04784. eCollection 2020 Aug.
Polyamide-6 (PA-6) nanofibers and PA-6/propolis ethanolic extract (EEP) blended fibers were prepared having electrospun their solutions in formic acid as solvent. The effect of concentrations of PA-6 and also EEP in polymer solutions on the morphology and physicochemical characteristics of their electrospun fibers was investigated. The analysis of FESEM images showed the mean diameter of fibers increased from 487- 682 nm with increasing PA-6 concentration in the range of 25-40 % w/v. While, increasing EEP concentration (20-50% (w/w)) in PA-6/EEP system caused the increasing fiber mean diameters from 943- 1773 nm. Partially high aspect ratio nanofibers were observed only in the PA-6 systems. Antioxidant activity of the fibers enhanced with increasing EEP concentration in the fiber mats. FTIR spectrums and thermal properties of electrospun fibers exhibited the simple mixtures of PA-6 and EEP in blend fibers which did not contain very complex interactions.
以甲酸为溶剂，通过静电纺丝制备了聚酰胺-6（PA-6）纳米纤维和PA-6/蜂胶乙醇提取物（EEP）共混纤维。研究了聚合物溶液中PA-6以及EEP的浓度对其静电纺丝纤维的形态和物理化学特性的影响。场发射扫描电子显微镜（FESEM）图像分析表明，随着PA-6浓度在25-40%（w/v）范围内增加，纤维的平均直径从487-682纳米增大。而在PA-6/EEP体系中，EEP浓度（20-50%（w/w））增加导致纤维平均直径从943-1773纳米增大。仅在PA-6体系中观察到部分高长径比的纳米纤维。纤维毡中纤维的抗氧化活性随EEP浓度增加而增强。静电纺丝纤维的傅里叶变换红外光谱（FTIR）和热性能表明，共混纤维中PA-6和EEP为简单混合物，不存在非常复杂的相互作用。
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