河南工程学院学报(自然科学版)
河南工程學院學報(自然科學版)
하남공정학원학보(자연과학판)
JOURNAL OF HENNAN INSTITUTE OF ENGINEERING(NATURAL SCIENCE EDITION)
2014年
4期
5-8
,共4页
壳聚糖%聚乙烯吡咯烷酮%纺丝工艺
殼聚糖%聚乙烯吡咯烷酮%紡絲工藝
각취당%취을희필각완동%방사공예
chitosan%polyvinylpyrrolidone%spinning process
为研究静电纺丝工艺对CS/PVP纳米纤维膜纤维形貌和直径的影响,以甲酸为溶剂配制质量分数为4%的CS溶液,以无水乙醇为溶剂配制质量分数为35%的PVP溶液,将PVP溶液与CS溶液按质量比90:10混合,搅拌均匀作为纺丝液,调节纺丝电压、接受距离和纺丝速率分别制备纳米纤维,借助扫描电镜( SEM)观察制备的纳米纤维形貌.结果表明,在选定的纺丝工艺参数中,纺丝电压对纤维的形貌和直径影响较大,而纺丝速率和接受距离对纤维的形貌和直径影响相对较小;当纺丝电压为18 kV、接受距离为12 cm、纺丝速率为0.2 mL/h时,纤维形貌较好.
為研究靜電紡絲工藝對CS/PVP納米纖維膜纖維形貌和直徑的影響,以甲痠為溶劑配製質量分數為4%的CS溶液,以無水乙醇為溶劑配製質量分數為35%的PVP溶液,將PVP溶液與CS溶液按質量比90:10混閤,攪拌均勻作為紡絲液,調節紡絲電壓、接受距離和紡絲速率分彆製備納米纖維,藉助掃描電鏡( SEM)觀察製備的納米纖維形貌.結果錶明,在選定的紡絲工藝參數中,紡絲電壓對纖維的形貌和直徑影響較大,而紡絲速率和接受距離對纖維的形貌和直徑影響相對較小;噹紡絲電壓為18 kV、接受距離為12 cm、紡絲速率為0.2 mL/h時,纖維形貌較好.
위연구정전방사공예대CS/PVP납미섬유막섬유형모화직경적영향,이갑산위용제배제질량분수위4%적CS용액,이무수을순위용제배제질량분수위35%적PVP용액,장PVP용액여CS용액안질량비90:10혼합,교반균균작위방사액,조절방사전압、접수거리화방사속솔분별제비납미섬유,차조소묘전경( SEM)관찰제비적납미섬유형모.결과표명,재선정적방사공예삼수중,방사전압대섬유적형모화직경영향교대,이방사속솔화접수거리대섬유적형모화직경영향상대교소;당방사전압위18 kV、접수거리위12 cm、방사속솔위0.2 mL/h시,섬유형모교호.
In order to study the effect of electrospinning parameters on morphology and diameter of CS / PVP nanofiber membrane. We took acid as solvent and prepared CS solutions with the concentration 4%,took ethanol as solvent and prepared PVP solutions with the concentration 35%. The PVP solutions and CS solutions were mixed at a mass ratio of 90:10 to prepared CS / PVP nanofibers,al-tering the electrospinning voltage,speed and tip-to-collector distance. The surface morphology of nanofibers was observed with scan e-lectric microscope( SEM). The results show that the fiber morphology and diameter is affected more clearly by electrospinning voltage, however the speed and tip-to-collector distance have comparatively little impact in the electrospinning process parameters selected. The process parameters are better when electrospinning voltage at 18 kV,distance at 12 cm and speed at 0. 2 mL/h.