| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| The Effect of Ionic Liquid on the Electrospinning of PVB in Different Solvents |
| CHEN Xuewei1,2, LIU Wei1,2,3, GAO Hongda1
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1 School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China
2 State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
3 Tianjin Engineering Center for Safety Evaluation of Water Quality & Safeguards Technology, Tianjin 300387, China |
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Abstract In order to study the effect of the addition of ionic liquids on solution properties and products in different solvents, PVB nanofibers were prepared by electrospinning method with PVB as solute and propyl formate and isobutyl acetate as the solvents, respectively. The same additive, N-ethylpyridinium hexafluorophosphate[EPy][PF6], was added to the PVB/propyl formate and PVB/isobutyl acetate solutions respectively to study the effects of the same ionic liquid on the conductivity, viscosity and surface tension of solutions in different solvents. The results show that the change of the properties of the two solutions by adding [EPy][PF6] is mainly due to the increase of conductivity. In the range of 0.1wt%—0.9wt%, the conductivity of the solutions are directly proportional to the amount of ionic liquid added, and the conductivity increase of PVB/propyl formate solution is much higher than that of PVB/isobutyl acetate. Using propyl formate as solvent, ionic liquid can effectively reduce the diameter of the fiber and be used to prepare nanofibers with smaller diameter.
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Published: 24 December 2020
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| Fund:This work was supported by the Tianjin Education Commission Research Project (2018KJ200). |
About author:: Xuewei Chen, master of Tiangong University, majoring in polymer nanomaterials research.
Wei Liu received her Ph. D. degree in science from China University of Torino (Italy) (UNITO) in 2011. She is currently an associate professor in Tiangong University ( TGU) and participates in the researches of synthesis and adsorption of porous polymer materials,synthesis and catalytic application of polymer supported metal nanoparticles,preparation and characterization of environment sensitive Janus particles,preparation and application of multi shell polymer microcapsules. She has published more than 10 journal papers, applied 7 national invention patents and 2 of them were authorized. |
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2020, Vol. 34 
