WANG Qin, ZHAN Da-fu, QI Guo-dong, WANG Yue, ZHENG Hai-yu. Impact of the microstructure of polycarboxylate superplasticizers on the dispersion of graphene. New Carbon Mater., 2020, 35(5): 547-558. doi: 10.1016/S1872-5805(20)60508-X
Citation: WANG Qin, ZHAN Da-fu, QI Guo-dong, WANG Yue, ZHENG Hai-yu. Impact of the microstructure of polycarboxylate superplasticizers on the dispersion of graphene. New Carbon Mater., 2020, 35(5): 547-558. doi: 10.1016/S1872-5805(20)60508-X

Impact of the microstructure of polycarboxylate superplasticizers on the dispersion of graphene

doi: 10.1016/S1872-5805(20)60508-X
Funds:  Beijing Natural Science Foundation Funded Project (8182014).
  • Received Date: 2019-10-23
  • Rev Recd Date: 2020-04-28
  • Publish Date: 2020-10-28
  • Graphene can not only toughen cement-based materials, but also give them sensing ability. However, the uniform dispersion of graphene in a cement matrix is the major problem in the fabrication process. Four polycarboxylate superplasticizers (PCEs) with different charge densities and side-chain lengths were synthesized and the effects of their microstructures on the dispersibility of graphene in deionized water and in solution in cement pores were examined by UV-Vis spectroscopy, dynamic light scattering and optical microscopy with a large depth of field. A mechanism for the dispersion of graphene in the two media was also proposed. In deionized water, PCEs with a higher charge density showed more electrostatic repulsion, which improved the graphene dispersion efficiency. Conversely, PCEs with a lower charge density and longer side-chains gave a lower graphene dispersion. In solution in the cement pores, however, a PCE with a high charge-density produced a low graphene dispersibility, due to a cross-linking Ca2+-bridging effect. This effect was insignificant in cement pores for a solution containing low charge-density PCEs. Moreover, it was found that PCEs with the longer side-chains produced the worst graphene dispersion efficiency in both media. Overall, PCEs with a low charge density and relatively short side chains are more suitable for the preparation of graphene-composited cement pastes.
  • loading
  • Huang B R, Chan H W, Jou S, et al. Structure and field emission of graphene layers on top of silicon nanowire arrays[J]. Applied Surface Science, 2016, 362:250-256.
    Stankovich S, Dikin D A, Dommett G H B, et al. Graphene-based composite materials[J]. Nature, 2006, 442(7100):282-286.
    Yu M. Strength and breaking mechanism of multiwalled carbon nanotubes under tensile load[J]. Science, 2000, 287(5453):637-640.
    Papageorgiou D G, Kinloch I A, Young R J. Mechanical properties of graphene and graphene-based nanocomposites[J]. Progress in Materials Science, 2017, 90:1-8.
    Liu Q, Xu Q, Yu Q, et al. Experimental investigation on mechanical and piezoresistive properties of cementitious materials containing graphene and graphene oxide nanoplatelets[J]. Construction and Building Materials, 2016, 127:565-576.
    D'Alessandro A, Rallini M, Ubertini F, et al. Investigations on scalable fabrication procedures for self-sensing carbon nanotube cement-matrix composites for SHM applications[J]. Cement and Concrete Composites, 2016, 65:200-213.
    Yu X, Kwon E. A carbon nanotube/cement composite with piezoresistive properties[J]. Smart Materials & Structures, 2009, 23481135(18):219-55010.
    Wang Q, Wang J, Lu C X, et al. Rheological behavior of fresh cement pastes with a graphene oxide additive[J]. New Carbon Materials, 2016, 31(6):574-584.
    Wang Q, Li S Y, Pan S, et al. Study on synthesis and properties of silane modified graphene oxide-polycarboxylate superplasticizer composites[J]. New Carbon Materials, 2018(2):131-139.
    Konsta-Gdoutos M S, Batis G, Danoglidis P A, et al. Effect of CNT and CNF loading and count on the corrosion resistance, conductivity and mechanical properties of nanomodified OPC mortars[J]. Construction and Building Materials, 2017, 147:48-57.
    Danoglidis P A, Konsta-Gdoutos M S, Gdoutos E, et al.Strength, energy absorption capability and self-sensing properties of multifunctional carbon nanotube reinforced mortars[J].Construction and Building Materials, 2016, 120:265-274.
    Konsta-Gdoutos M S, Metaxa Z S, Shah S P. Highly dispersed carbon nanotube reinforced cement-based materials[J]. Cement and Concrete Research, 2010, 40(7):1052-1059.
    Yi-Hong C, Sheng-Chi L, Jeng-An W, et al. Preparation and properties of graphene/carbon nanotube hybrid reinforced mortar composites[J]. Magazine of Concrete Research, 2018:1-37.
    Bai S, Jiang L, Xu N, et al. Enhancement of mechanical and electrical properties of graphene/cement composite due to improved dispersion of graphene by addition of silica fume[J]. Construction and Building Materials, 2018, 164:433-441.
    Ozbulut O E, Jiang Z, Harris D K. Exploring scalable fabrication of self-sensing cementitious composites with graphene nanoplatelets[J]. Smart Materials and Structures, 2018, 27(11).
    Ayán-Varela M, Paredes J, Villar-Rodil S, et al. A quantitative analysis of the dispersion behavior of reduced graphene oxide in solvents[J]. Carbon,2014, 75:390-400.
    Tkalya E, Ghislandi M, With G D, et al. The use of surfactants for dispersing carbon nanotubes and graphene to make conductive nanocomposites[J]. Current Opinion in Colloid & Interface Science, 2012, 17(4).
    Narayan R, Kim S O. Surfactant mediated liquid phase exfoliation of graphene[J]. Nano Convergence, 2015, 2(1):20.
    San Andrés M P, Díez-Pascual A M, Palencia S, et al. Fluorescence quenching of α-tocopherol by graphene dispersed in aqueous surfactant solutions[J]. Journal of Luminescence, 2017, 187:169-180.
    Mateos R, Soledad V, Mercedes V, et al. Comparison of anionic, cationic and nonionic surfactants as dispersing agents for graphene based on the fluorescence of riboflavin[J]. Nanomaterials, 2017, 7(11):403.
    Zhao L, Guo X, Liu Y, et al. Investigation of dispersion behavior of GO modified by different water reducing agents in cement pore solution[J]. Carbon, 2017, 127:255-269.
    Zou S H, Duan W B, Wang X, et al. Synthesis and effect of polycarboxylate superplasticizer with two different molecular polyether's as side chain[J]. Applied Mechanics and Materials, 2012, 217-219:578-581.
    Zhang Y R, Kong X M, Lu Z B, et al. Effects of the charge characteristics of polycarboxylate superplasticizers on the adsorption and the retardation in cement pastes[J]. Cement and Concrete Research, 2015, 67:184-196.
    Wotring E, Mondal P, Marsh C. Characterizing the Dispersion of Graphene Nanoplatelets in Water with Water Reducing Admixture. Nanotechnology in Construction[M]. Springer International Publishing, 2015:141-148.
    Metaxa Z S. Polycarboxylate based superplasticizers as dispersant agents for exfoliated graphene nanoplatelets reinforcing cement based materials[J]. Journal of Engineering Science and Technology Review, 2015, 8(5):1-5
    Liebscher M, Lange A. Impact of the molecular architecture of polycarboxylate superplasticizers on the dispersion of multi-walled carbon nanotubes in aqueous phase[J]. Journal of Materials Science, 2017, 52(4):2296-2307.
    Collins F, Lambert J, Duan W H. The influences of admixtures on the dispersion, workability, and strength of carbon nanotube-OPC paste mixtures[J]. Cement and Concrete Composites, 2012, 34(2):201-207.
    Wang Q, Wang J, Lv C X, et al. Rheological behavior of fresh cement pastes with a graphene oxide additive[J]. New Carbon Materials, 2016, 31(6):574-584.
    刘伯伟. 三种新型碳材料水泥基复合材料的制备及压敏性对比研究[D].北京建筑大学, 2016. (Liu Bo-wei. Comparative study of the preparation and Piezoresistivity of three new carbon materials based cement composites[D]. Beijing University of Civil Engineering and Architecture, 2016.)
    Ferrari A C, Basko D M. Raman spectroscopy as a versatile tool for studying the properties of graphene[J]. Nature Nanotechnology, 2013, 8(4):235-246.
    杨勇辉, 孙红娟, 彭同江. 石墨烯的氧化还原法制备及结构表征[J]. 无机化学学报, 2010, 26(11):2083-2090. (Yang Y, Sun H, Peng T. Synthesis and structural characterization of graphene by oxidation reduction[J]. Chinese Journal of Inorganic Chemistry, 2010, 26(11):2083-2090.)
    Shao H, Chen B, Li B, et al. Influence of dispersants on the properties of CNTs reinforced cement-based materials[J]. Construction and Building Materials, 2017, 131:186-194.
    Toh S Y, Loh K S, Kamarudin S K, et al. Graphene production via electrochemical reduction of graphene oxide:Synthesis and characterization[J]. Chemical Engineering Journal, 2014, 251:422-434.
    Sindu B S, Sasmal S. Properties of carbon nanotube reinforced cement composite synthesized using different types of surfactants[J]. Construction and Building Materials, 2017, 155:389-399.
    Du H J, Pang S D. Dispersion and stability of graphene nanoplatelet in water and its influence on cement composites[J]. Construction and Building Materials, 2018, 167:403-413.
    Hou P, Kawashima S, Kong D, et al. Modification effects of colloidal nano SiO2 on cement hydration and its gel property[J]. Composites Part B:Engineering, 2013, 45(1):440-448.
    Tian H, Kong X, Su T, et al. Comparative study of two PCE superplasticizers with varied charge density in Portland cement and sulfoaluminate cement systems[J]. Cement and Concrete Research, 2019, 115:43-58.
    Cao M L, Zhang H X, Zhang C. Effect of graphene on mechanical properties of cement mortars[J]. Journal of Central South University, 23(4):919-925.
    Liu J, Fu J, Yang Y, et al. Study on dispersion, mechanical and microstructure properties of cement paste incorporating graphene sheets[J]. Construction and Building Materials, 2019, 199:1-11.
    Winnefeld F, Becker S, Pakusch J, et al. Effects of the molecular architecture of comb-shaped superplasticizers on their performance in cementitious systems[J]. Cement and Concrete Composites, 2007, 29(4):251-262.
    Nawa T. Effect of chemical structure on steric stabilization of polycarboxylate-based superplasticizer[J]. 206, 4(2):225-232.
    王子明, 卢子臣, 路芳, 等. 梳形结构的侧链密度对聚羧酸系减水剂性能的影响[J]. 硅酸盐学报, 2012(11):40-45. (Wang Zi-ming, Lu Zi-chen, Lu Fang, et al. Effect of side chain density of comb-shaped structure on performance of polycarboxylate superplasticizer[J]. Journal of The Chinese Ceramic Society, 2012(11):40-45.)
    Han B, Zhang K, Yu X, et al. Fabrication of piezoresistive CNT/CNF cementitious composites with superplasticizer as dispersant[J]. Journal of Materials in Civil Engineering, 2012, 24(6):658-665.
    董思勤.不同分子结构聚羧酸系减水剂对水泥浆体早期性能的影响[D]. 重庆大学, 2014. (Dong Si-qin. Influence of molecular structure of polycarboxylate superplasticizer on early age properties of cementitious materials[D]. Chongqing University, 2014.)
    Johann P, Bernhard S. Impact of molecular structure on zeta potential and adsorbed conformation of. α-allyl-ω-polyethylene glycol-maleic anhydride superplasticizers. Journal of Advanced Concrete Technology, 2006, 4(2):233-239.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Figures(1)

    Article Metrics

    Article Views(526) PDF Downloads(115) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return