期刊
CARBOHYDRATE POLYMERS
卷 206, 期 -, 页码 328-335出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2018.11.021
关键词
Alginate; Polymeric ionic liquid; Graphene; Composite fibers; Core-sheath
资金
- Fundamental Research Funds for the Central Universities [2232018D3-07, 2232018D3-24, 2232018G-02]
- China Postdoctoral Science Foundation [2016M591573]
- National Natural Science Foundation of China [21404024, 51803103]
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University
In this study, polymeric ionic liquid (PIL) was synthesized and used in the we spinning of calcium alginate (CaAlg) fiber. PIL was used as an intermediate to coat graphene with outer layer of CaAlg fiber to obtain conductive core-sheath CaAlg/Graphene (CaAlg/G-PIL) fibers. This proposed blend enhances the properties of the fiber due to the pi-pi and cation-pi interactions between PIL and graphene, and the electrostatic interactions between PIL and CaAlg. The composition and chemical structure of the composite fibers were characterized by infrared spectroscopy, Raman spectroscopy, scanning electron microscopy and thermogravimetric analysis. The properties and applications of the composite fibers were characterized by tensile test and a series of electrical conductivity tests. The results show that the modification of PIL realizes non-covalent combination of CaAlg fiber with graphene, improving the electrical conductivity of the fiber.
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