Mechanical and wettable behavior of polyacrylonitrile reinforced fibrous polystyrene mats.
Mechanical and wettable behavior of polyacrylonitrile reinforced fibrous polystyrene mats.
复制标题
DOI：
10.1016/j.jcis.2010.03.026
复制
发表时间：
2010-07
影响因子：
9.9
通讯作者：
Min Sun;Xiaohong Li;B. Ding;Jianyong Yu;Gang Sun
中科院分区：
文献类型：
--
作者：
Min Sun;Xiaohong Li;B. Ding;Jianyong Yu;Gang Sun
在本研究中，我们通过多注射器静电纺丝技术制备了聚丙烯腈(PAN)增强的超疏水纤维聚苯乙烯(PS)垫。通过调节PS/PAN注射器的数量比，可以控制共混垫中PS/PAN的组成比。随着PS/PAN注射器数比从4/0降低到1/3，纤维毡的水接触角从155°降低到143°。纳米纤维组分的加入显著提高了纤维毡的力学性能。当注射器临界比为3/1(PS/PAN)时，膜表面的WCA为150°，拉伸强度是纯PS膜的3倍。此外，场发射扫描电子显微镜(FE-SEM)、傅立叶变换红外光谱(FT-IR)和力学性能的测试结果表明，多注射器静电纺丝技术是制备规模化、分散性良好的共混纤维席的有效方法。
In this study, we have fabricated the polyacrylonitrile (PAN) reinforced super-hydrophobic fibrous polystyrene (PS) mats via a multi-syringe electrospinning technique. The composition ratio of PS/PAN in the blend mats could be controlled by tuning the number ratios of syringes of PS/PAN. The water contact angles (WCAs) of resultant fibrous mats was decreased from 155° to 143° with the decreasing the number ratios of syringes of PS/PAN from 4/0 to 1/3. The addition of the component of PAN nanofibers in fibrous PS mats significantly improved the mechanical properties of PS mats. At a critical syringe ratio of 3/1 (PS/PAN), the mat surface showed a WCA of 150° with a three times increased tensile strength compared with the pure PS mats. Additionally, the results of field emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FT-IR), and mechanical properties indicated the multi-syringe electrospinning technique is an effective approach to fabricate the large-scale well-dispersed blend fibrous mats.