石墨烯在MMA和St中的分散性研究
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摘要
本文通过第二单体甲基丙烯酸二甲氨基乙酯(DMAEMA)将石墨烯分散到甲基丙烯酸甲酯(MMA)中制成石墨烯/MMA分散液,分别以第二单体甲基丙烯酸二甲氨基乙酯(DMAEMA)、乙烯基三甲氧基硅烷偶联剂(KH-171)、单烷氧基类钛酸酯偶联剂(JTW-101)为分散助剂将石墨烯分散到苯乙烯(St)中制成石墨烯/St分散液。通过沉降实验、离心实验、偏光显微镜、X射线衍射(XRD)、傅里叶变换红外光谱(FTIR)和拉曼光谱等对石墨烯/MMA和石墨烯/St分散液的分散情况进行分析和研究。实验结果表明:石墨烯已被均匀、稳定地分散于MMA或St中;以第二单体甲基丙烯酸二甲氨基乙酯(DMAEMA)为分散助剂制备的石墨烯/MMA分散液分散效果最好。
In this paper, the graphene was dispersed into methyl methacrylate(MMA) with the aid of 2-(Dimethylamino) ethyl methacrylate(DMAEMA), the second monomer, and the graphene/MMA dispersion liquid was obtained. The graphene was dispersed into styrene(St) with the aid of 2-(Dimethylamino) ethyl methacrylate(DMAEMA), the second monomer, vinyl trimethoxy silane coupling agent(KH-171), or monoalkoxy base titanate coupling agent(JTW-101) as dispersing agent, and the graphene/St dispersion liquid was obtained. The dispersion of graphene/St and graphene/MMA dispersion liquid was analyzed and studied by the subsiding experiment, centrifugation experiment, polarizing microscope, X ray diffraction(XRD) and Fourier transform infrared spectra(FTIR), and Raman spectrum. The results show that: graphene has been dispersed evenly and stably in MMA or St. The MMA/graphene dispersion liquid was prepared with the aid of 2-(Dimethylamino) ethyl methacrylate(DMAEMA), second monomer, as dispersing agent was the best.
In this paper, the graphene was dispersed into methyl methacrylate(MMA) with the aid of 2-(Dimethylamino) ethyl methacrylate(DMAEMA), the second monomer, and the graphene/MMA dispersion liquid was obtained. The graphene was dispersed into styrene(St) with the aid of 2-(Dimethylamino) ethyl methacrylate(DMAEMA), the second monomer, vinyl trimethoxy silane coupling agent(KH-171), or monoalkoxy base titanate coupling agent(JTW-101) as dispersing agent, and the graphene/St dispersion liquid was obtained. The dispersion of graphene/St and graphene/MMA dispersion liquid was analyzed and studied by the subsiding experiment, centrifugation experiment, polarizing microscope, X ray diffraction(XRD) and Fourier transform infrared spectra(FTIR), and Raman spectrum. The results show that: graphene has been dispersed evenly and stably in MMA or St. The MMA/graphene dispersion liquid was prepared with the aid of 2-(Dimethylamino) ethyl methacrylate(DMAEMA), second monomer, as dispersing agent was the best.
引文
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[2]Lightcap I V,Kamat P V.Graphitic design:prospects of graphene-based nanoconposites for solar energy conversion,storage,and sensing[J].Acc Chem Res,2012.
[3]魏伟,吕伟,杨全红,等.高浓度石墨烯水系分散液及其气液界面自组装膜[J].新型炭材料,2011,26(1):37-40.
[4]Khan U,O'Neill A,Lotya M,et al.High-concentration solvent exfoliation of graphene[J].Small,2010,6(7):864-871.
[5]Behabtu N,Lomeda JR,Green M J,et al.Spontaneoushigh-concentration dispersions and liquid crystals of graphene[J].Nat Nanotechnol,2010,5:406-411.
[6]周晚珠,叶红齐,刘辉,等.PDMAEMA的ATRP法合成及其温度/p H敏感性行为研究[J].应用化工,2013,42(7):1166-1169.
[7]Yu Shang,Dong Zhang,Yan Yun Liu,et al.Prelimnary comparison of different reduction methods 0f graphene oxide[J].Indian academy of Sciences,2015,38(1):7-12.
[8]Kui K N,Ozbas B,Schniepp H C,et al.Raman spectra of graphite oxide and functionalized graphene sheets[J].Nano Letters,2008,8(1):36-41.