分散剂种类及浓度对石墨烯水性浆料稳定性的影响
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- 英文论文题名：Influences of Dispersant Types and Concentrations on Stability of Graphene Water-based Slurry
- 论文作者：徐凯丽 ; 张云升
- 英文论文作者：XU Kaili ; ZHANG Yunsheng ; Key Laboratory for Civil Engineering Material of Jiangsu Province ; School of Materials Science and Engineering ; Southeast University
- 年：2016
- 作者机构：东南大学材料科学与工程学院江苏省土木工程材料重点实验室;
- 论文关键词：分散剂 ; 超声 ; 紫外-可见分光光度计 ; 稳定性
- 英文论文关键词：dispersant ; ultrasonication ; ultraviolet-visible spectrophotometer ; stability
- 会议召开时间：2016-11-18
- 会议录名称：第一届先进材料前沿学术会议论文集（《材料导报》2016年第30卷第Z1期）
- 语种：中文
- 分类号：TQ127.11
- 学会代码：CLDB
- 会议名称：第一届先进材料前沿学术会议
- 会议地点：中国陕西西安
- 主办单位：《材料导报》杂志社
- 学会名称：材料导报编辑部
- 页数：5
- 文件大小：1421k
- 原文格式：O
- 会议级别：全国
摘要
采用分散剂和超声相结合的方法,制备质量分数为0.02%的石墨烯水性浆料,利用紫外-可见分光光度计、光学显微镜和静置沉降法研究石墨烯在水中的分散性及稳定性。实验结果表明,适量的分散剂及超声1 h可以实现石墨烯在水溶液中的均匀分散,其中萘系高效减水剂的分散效果最佳,其最优掺量为石墨烯掺量的1倍。
In this paper,by the combination of dispersant and ultrasonication methods,graphene water-based slurry with0.02%graphene mass fraction is well prepared by adding different dispersants.Through ultraviolet-visible spectrophotometer,optical microscope and static sedimentation,we determined graphene s dispersion and stability in water.The experimental results show that the proper amount of dispersant and 1 h ultrasonication treatment can realize the graphene dispersion in aqueous solution.Naphthalene sulfonate water reducer has the best dispersion effect and the optimal amount is equal to graphene content.
In this paper,by the combination of dispersant and ultrasonication methods,graphene water-based slurry with0.02%graphene mass fraction is well prepared by adding different dispersants.Through ultraviolet-visible spectrophotometer,optical microscope and static sedimentation,we determined graphene s dispersion and stability in water.The experimental results show that the proper amount of dispersant and 1 h ultrasonication treatment can realize the graphene dispersion in aqueous solution.Naphthalene sulfonate water reducer has the best dispersion effect and the optimal amount is equal to graphene content.
引文
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2 Balandin A A,Ghosh S,Bao W,et al.Superior thermal conductivity of single-layer graphene[J].Nano Lett,2008,8:902.
3 Ni G X,Zheng Y,Bae S,et al.Graphene-ferroelectric hybrid structure for flexible transparent electrodes[J].ACS Nano,2012,6(5):3935.
4 Lee C G,Wei X D,Jeffrey W K,et al.Measurement of the elastic properties and intrinsic strength of monolayer graphene[J].Science,2008,321:385.
5 Weiss N O,Zhou H,Liao L,et al.Graphene:An emerging electronic material[J].Adv Mater,2012,24:5782.
6 Yu Mei,Li Xinjie,Ma Yuxiao.et al.Progress in research on graphene-based composite supercapacitor materials[J],J Mater Eng,2016,44(5):101(in Chinese).于美.李新杰,马玉骁,等.石墨烯基复合超级电容器材料研究进展[J].材料工程,2016.44(5):101.
7 Liem H,Choy H S.Superior thermal conductivity of polymer nanocomposites by using grapheme and boron nitride as fillers[J].Solid State Commun,2013,163:41.
8 Du Hongjian,Pang Sze Dai.Enhancement of barrier properties of cement mortar with graphene nanoplatelet[J].Cement Concr Res,2015.76:10.
9 Lv Shenghua.Ma Yujuan,Qiu Chaochao.et al.Effect of graphene oxide nanosheets of microstructure and mechanical properties of cement composites[J].Constr Build Mater.2013,49:121.
10 Pu Nen Wen,Wang Chung An,Liu Yuh Ming.et al.Dispersion of graphene in aqueous solutions with different types of surfactants and the production of graphene films by spray or drop coating[J].J Taiwan Institute Chem Eng,2012,43:140.
11 John Texter.Graphene dispersions[J].Current Opinion Colloid Interface Sci,2014,19:163.
12 Metaxa Z S.Polycarboxylate based superplasticizers as dispersant agents for exfoliated graphene nanoplatelets reinforcing cement based materials[J].J Eng Sci Technol Rev,2015,8(5):1.
13 Wei Wei,Lv Wei,Yang Quanhong.High-concentration graphene aqueous suspension and amembrane self-assembled at the liquid-air interface[J].New Carbon Mater.2011,26(1):36(in Chinese).魏伟,吕伟,杨全红.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):36.
14 Yang Li,Li Kongzhai,Wang Hua.et al.Studies on graphene suspension and self-assembled graphene-based membranes[J].Chem J Chinese Universities,2015,36(6):1166(in Chinese).杨丽.李孔斋,王华,等.石墨烯分散液及其组装膜的性能[J].高等学校化学学报.2015,36(6):1166.
15 Erik Wotring.Paramita Mondal,Charles Marsh.Characterizing the dispersion of graphene nanoplatelets in water with water reducing admixture[C]//Nanotechnology in Construction.Chicago,2015:141.
16崔正刚.表面活性剂、胶体与界面化学基础[M].北京:化学工业出版社,2013:69.
17姚允斌.裘祖楠.胶体与表面化学导论[M].天津:南开大学出版社,1988.
18 Zhang Jin.Research on dispersion of graphene in aqueous solution and concrete[D].Huainan:Anhui University of Science and Technology,2013(in Chinese).张瑾.石墨烯在水溶液及基体中的分散研究[D].淮南:安徽理工大学,2013.
19 Gao Ruijun,Lv Shenghua.Study on the structure and performances and acting mechanisms of polycarboaylate-type superplasticizers[J].Mater Rev:Rev,2012,26(2):57(in Chinese).高瑞军,吕生华.聚羧酸系减水剂的构性关系及其作用机理研究[J].材料导报:综述篇.2012,26(2):57.