利用自由基聚合反应制备了木薯淀粉(CS)接枝苯乙烯(St)/丙烯酸丁酯(Ba)共聚物(CS-g-St/Ba),并且通过同轴静电纺丝法制备了以聚己内酯(PCL)为核层,CS-g-St/Ba为壳层的核壳结构纤维膜.分析了核层PCL浓度和流速对纤维形貌的影响,随着核层PCL浓度的增加,珠状纤维逐渐减少,最后形成无珠粒纤维,且纤维的平均直径逐渐增大,随着核层PCL流速的增加,纤维的平均直径先减小后增大;通过对核壳纤维的透射电镜和纤维断面扫描电镜观察可以清晰地看到壳层CS-g-St/Ba和核层PCL;红外光谱分析表明,St和Ba能同时接枝在CS骨架上,核壳纤维膜中同时含有CS-g-St/Ba和PCL;核壳结构纤维膜的拉伸强度为1.58 MPa,弹性模量为12.63 MPa.相对于单轴静电纺CS-g-St/Ba和PCL纤维膜,核壳结构纤维膜的力学性能明显提高.
参考文献
| [1] | Bhardwaj, Nandana;Kundu, Subhas C. .Electrospinning: A fascinating fiber fabrication technique[J].Biotechnology Advances,2010(3):325-347. |
| [2] | Zaicheng Sun;Eyal Zussman;Alexander L. Yarin;Joachim H. Wendorff;Andreas Greiner .Compound Core-Shell Polymer Nanofibers by Co-Electrospinning[J].Advanced Materials,2003(22):1929-1932. |
| [3] | He CL;Huang ZM;Han XJ;Liu L;Zhang HS;Chen LS .Coaxial electrospun poly(L-lactic acid) ultrafine fibers for sustained drug delivery[J].Journal of Macromolecular Science. Physics,2006(4):515-524. |
| [4] | Jian H. Yu;Sergey V. Fridrikh;Gregory C. Rutledge .Production of Submicrometer Diameter Fibers by Two-Fluid Electrospinning[J].Advanced Materials,2004(17):1562-1566. |
| [5] | Schiffman JD;Schauer CL .A review: Electrospinning of biopolymer nanofibers and their applications[J].Polymer reviews,2008(2):317-352. |
| [6] | Lingyan Kong;Gregory R. Ziegler .Quantitative relationship between electrospinning parameters and starch fiber diameter[J].Carbohydrate Polymers: Scientific and Technological Aspects of Industrially Important Polysaccharides,2013(2):1416-1422. |
| [7] | 徐勇,朱新生,高强,程丝.静电纺丝制备超细纤维复合材料[J].高分子材料科学与工程,2007(06):244-247. |
| [8] | 汪秀丽,张玉荣,王玉忠.淀粉基高分子材料的研究进展[J].高分子学报,2011(01):24-37. |
| [9] | K.H.Lee;H.Y.Kim;H.J.Bang;Y.H.Jung;S.G.Lee .The change of bead morphology formed on electrospun polystyrene fibers[J].Polymer: The International Journal for the Science and Technology of Polymers,2003(14):4029-4034. |
| [10] | Yanzhong Zhang;Zheng-Ming Huang;Xiaojing Xu;Teck Lim;Seeram Ramakrishna .Preparation of Core-Shell Structured PCL-r-Gelatin Bi-Component Nanofibers by Coaxial Electrospinning[J].Chemistry of Materials,2004(18):3406-3409. |
| [11] | Dan Li;Younan Xia .Direct Fabrication of Composite and Ceramic Hollow Nanofibers by Electrospinning[J].Nano letters,2004(5):933-938. |
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%