【作者】 田力冬； 何小伟； 乔明涛； 顾军渭； 张秋禹；

【Author】 Lidong Tian;Xiaowei He;Mingtao Qiao;Junwei Gu;Qiuyu Zhang;School of Science, Northwestern Polytechnical University;

【机构】 西北工业大学理学院；

【摘要】 本文中,我们以可溶型聚酰亚胺为前驱体,以聚乙烯吡咯烷酮作为制孔剂,利用静电纺丝法制备了一种新型的具有高效热油吸附性能的聚酰亚胺多孔纤维。通过对不同温度下的纤维形貌以及孔结构的表征,确定了聚酰亚胺多孔纤维的最佳耐热温度。并在此温度下对其进行热油吸附的测试。结果表明,该纤维在200oC下可以保持良好的纤维形态和孔结构。对高温机油的吸附量可达57.4 g g-1,而且循环使用10次后,吸附效率依旧可以保持在90%,体现了优良的热油吸附特性。相比于常规的用于油吸附的聚合物电纺纤维,这种聚酰亚胺多孔纤维在热油吸附领域具有广阔的发展前景。更多还原

【Abstract】 In this work, we report a strategy to create the electrospun porous polyimide nanofibers that possesses an excellent hot oil adsorption property. In this process, the soluble polyimide is the electrospinning precursor, and PVP is the pore-forming agent. The result shows that the fiber exhibits a stable and uniform morphology and pore structures at 200 oC. The hot oil adsorption capacity is 57.4 g g^-1, and after ten cycles, the porous polyimide fiber can still maintain more than 90% of the adsorption efficiency, which promise an excellent hot oil property. Compared to the common polymer fibers that used in oil adsorption, the porous polyimide fibers provide a versatile platform for exploring the application of nanofibers in hot oil adsorption.更多还原