采用无针喷头熔体静电纺丝装置制备取向纤维,以ANSYS电场模拟为指导,探究了纺丝距离、辊筒转速及电场强度等工艺条件对纤维结构的影响.当纺丝距离为20 mm时,其电场强度相对最大,但其纤维直径却较50mm,80 mm粗.确定出本实验熔体电纺制备PP取向纤维的最佳距离为50～100 mm,并明确了接收辊筒转速对纤维取向度及纤维直径有显著的改善作用.通过扫描电镜、X射线衍射、差示扫描量热仪及拉伸试验对熔体电纺纤维进行性能表征,取向纤维膜孔径比随机纤维小得多,有利于提高过滤效率及制备超疏水纤维,热压后纤维结晶性变好,且致密性及力学性能均有所提高.
参考文献
| [1] | 陈勇,余煜玺,赖德林,郭德乾,吴晓云,杨大祥.聚丙烯腈基纳米炭纤维无纺布的制备与表征[J].高分子材料科学与工程,2013(09):128-131. |
| [2] | P. Ramesh Kumar;N. Khan;S. Vivekanandhan;N. Satyanarayana;A. K. Mohanty;M. Misra .Nanofibers: Effective Generation by Electrospinning and Their Applications[J].Journal of nanoscience and nanotechnology,2012(1):1-25. |
| [3] | Zuwei Ma;M. Kotaki;S. Ramakrishna .Electrospun cellulose nanofiber as affinity membrane[J].Journal of Membrane Science,2005(1/2):115-123. |
| [4] | Zheng-Ming Huang;Y.-Z. Zhang;M. Kotaki .A review on polymer nanofibers by electrospinning and their applications in nanocomposites[J].Composites science and technology,2003(15):2223-2253. |
| [5] | Arun Kumar Pradhan;Dipayan Das;R. Chattopadhyay.Effect of 3D fiber orientation distribution on particle capture efficiency of anisotropic fiber networks[J].Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems,2013:205-207. |
| [6] | 金许翔,张全超,牛鹏飞,唐山,陈璟,王孝军,杨杰.取向静电纺丝纳米纤维的制备及应用研究进展[J].高分子通报,2009(02):42-47. |
| [7] | Kim, Y.-J.;Ahn, C.H.;Choi, M.O. .Effect of thermal treatment on the characteristics of electrospun PVDF-silica composite nanofibrous membrane[J].European Polymer Journal,2010(10):1957-1965. |
| [8] | Satinderpal Kaur;Rajendrakumar Barhate;Subramanian Sundarrajan .Hot pressing of electrospun membrane composite and its influence on separation performance on thin film composite nanofiltration membrane[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2011(1/3):201-209. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%