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Structure and electrically conductive properties of porous PAN‐based nanocomposites prepared by Pickering emulsion template method
Journal of Applied Polymer Science ( IF 3 ) Pub Date : 2020-01-20 , DOI: 10.1002/app.49017
Baichen Wang 1 , Shuo Dou 1 , Yu Gao 1 , Wei Li 1
Affiliation  

A carbon nanohybrid Pickering stabilizer was synthesized by the hydrothermal reaction of 2‐ethyl‐4‐methylimidazole (EMI), graphene oxide (GO), and carbon nanotubes (CNTs). A water‐in‐oil (w/o) type Pickering emulsion was achieved using the mixed carbon nanohybrids/Span 80 to form a porous and conductive polyacrylonitrile (PAN) nanocomposites after polymerization. Contact angle and X‐ray photoelectron spectroscopy (XPS) results show that the carbon nanohybrid stabilizer is amphiphilic. The effects of the composition and concentration of stabilizers were investigated. When the concentration of the carbon nanohybrid stabilizer is 4 mg ml−1, the conductivity of the resulting material is 2.31 × 10−9 S m−1, which is six orders of magnitude higher than that of porous PAN composites without carbon nanohybrid stabilizer. At the mass ratio of 6GO:1CNTs, the conductivity of porous PAN‐based composites reaches 2.47 × 10−8 S m−1. The significantly increased conductivity is the evidence for the three dimensional conductive network constructed by carbon nanohybrid stabilizer at the oil/water interface.

中文翻译:

Pickering乳液模板法制备的多孔PAN基纳米复合材料的结构和导电性能

通过2-乙基-4-甲基咪唑(EMI),氧化石墨烯(GO)和碳纳米管(CNT)的水热反应合成了碳纳米混合Pickering稳定剂。使用混合的碳纳米杂化物/ Span 80获得油包水(w / o)型Pickering乳液,在聚合后形成多孔导电聚丙烯腈(PAN)纳米复合材料。接触角和X射线光电子能谱(XPS)结果表明,碳纳米杂化稳定剂是两亲的。研究了稳定剂的组成和浓度的影响。当碳纳米杂化稳定剂的浓度为4mg ml -1时,所得材料的电导率为2.31×10 -9 S m -1,比没有碳纳米杂化稳定剂的多孔PAN复合材料高出六个数量级。在6GO:​​1CNTs的质量比下,多孔PAN基复合材料的电导率达到2.47×10 -8 S m -1。电导率的显着增加是碳纳米杂化稳定剂在油/水界面处构建的三维导电网络的证据。
更新日期:2020-01-20
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