Ionic liquid functionalized graphene oxide for enhancement of styrene‐butadiene rubber nanocomposites |
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| Authors: | Biao Yin Xumin Zhang Xun Zhang Jingyi Wang Yanwei Wen Hongbing Jia Qingmin Ji Lifeng Ding |
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| Institution: | 1. Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education, Nanjing University of Science and Technology, Nanjing, China;2. Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology, Nanjing Institute of Technology, Nanjing, China;3. College of Material Engineering, Nanjing Institute of Technology, Nanjing, China;4. Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, Nanjing, China;5. Department of Chemistry, Xi'an Jiaotong‐Liverpool University, Suzhou, China |
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| Abstract: | Ionic liquid 1‐allyl‐3‐methyl‐imidazolium chloride (AMICl) is used to fine‐tune the surface properties of graphene oxide (GO) sheets for fabricating ionic liquid functionalized GO (GO‐IL)/styrene‐butadiene rubber (SBR) nanocomposites. The morphology and structure of GO‐IL are characterized using atomic force microscope, X‐ray diffraction, differential scanning calorimetry, X‐ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, UV‐vis spectra and Raman spectra. The interaction between GO and AMICl molecules as well as the effects of GO‐IL on the mechanical properties, thermal conductivity and solvent resistance of SBR are thoroughly studied. It is found that AMICl molecules can interact with GO via the combination of hydrogen bond and cation–π interaction. GO‐IL can be well‐dispersed in the SBR matrix, as confirmed by X‐ray diffraction and scanning electron microscope. Therefore, the SBR nanocomposites incorporating GO‐IL exhibit greatly enhanced performance. The tensile strength, tear strength, thermal conductivity and solvent resistance of GO‐IL/SBR nanocomposite with 5 parts per hundred rubber GO‐IL are increased by 505, 362, 34 and 31%, respectively, compared with neat SBR. This method provides a new insight into the fabrication of multifunctional GO‐based rubber composites. Copyright © 2016 John Wiley & Sons, Ltd. |
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| Keywords: | graphene oxide ionic liquids styrene‐butadiene rubber mechanical properties thermal properties |
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