Abstract: A uniform nanofibrous membrane with average fibre diameter of 70~300nm and CS content of up to 60% was obtained by electrospining for the first time with blend of 3%(wt) chitosan solution in 1%(volume fraction) acetic acid and 11%(wt) PVA in distilled water,under the electric field of 20~22kV and which was varying proportion of CS/PVA.Resulting nanofibers were characterized by FESEM,XRD,FTIR,TGA and universal testing machine.The results of FESEM showed that the morphology of CS/PVA nanofiber membrane was related to the mixing ratio of CS and PVA.When the content of CS was less than 60%,the morphology was good.When CS content was higher than 60%,droplets and spindle bodies were present in the fiber.In addition,there were strong hydrogen bonds between CS and PVA and good compatibility.PVA can reduce the crystallinity of chitosan and facilitated the electrospinning process.CS/PVA membrane had excellent thermal stability and elasticity,and the maximum tensile strength can reach 9.98MPa with the increasement of PVA proportion.
杨梅,孙润军. 静电纺壳聚糖/聚乙烯醇纳米纤维膜的制备及表征[J]. 化工新型材料, 2019, 47(4): 120-124.
Yang Mei, Sun Runjun. Preparation and characterization of electrospun chitosan/PVA nanofiber membrane. New Chemical Materials, 2019, 47(4): 120-124.
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