表面活性剂复配对石墨烯分散性的影响及其在复合镀银中的应用
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摘要
以石墨烯分散液的吸光度和Zeta电位为指标,研究了十二烷基硫酸钠(SDS)、十二烷基苯磺酸钠(SDBS)、脂肪醇聚氧乙烯醚硫酸钠(AES)、六偏磷酸钠(SHMP)、木质素磺酸钠(SLS)、吐温-20(TW-20)、吐温-80(TW-80)、聚乙烯吡咯烷酮(PVP)、辛基酚聚氧乙烯醚-10(OP-10)、聚乙二醇600(PEG-600)等表面活性剂单独使用或复配时对石墨烯在水性介质中的分散性的影响,得到了较优的三元复合分散剂的组成(均相对于石墨烯的质量分数)为0.6%SDBS+1.5%TW-20+1.5%PVP。采用该分散剂时石墨烯悬浮液的平均吸光度为1.160,Zeta电位的绝对值|ζ|高达35.84 mV。将其应用于复合电镀银-石墨烯时,可得到石墨烯均匀分布的银-石墨烯复合镀层。
The effects of several surfactants including sodium dodecyl sulfate(SDS), sodium dodecylbenzenesulfonate(SDBS), sodium fatty alcohol polyoxyethylene ether sulfate(AES), sodium hexametaphosphate(SHMP), sodium lignosulfonate(SLS), Tween-20, Tween-80, polyvinyl pyrrolidone(PVP), octylphenol polyoxyethylene-10(OP-10), and polyethylene glycol-600(PEG-600) on the dispersibility of graphene in aqueous medium when they were used individually or compositely were studied based on the absorbance and Zeta potential of graphene dispersion. The optimal ternary composite dispersant was obtained as follows: 0.6 wt.%(with respect to the graphene dosage) SDBS + 1.5 wt.%(ditto)Tween-20 + 1.5 wt.%(ditto) PVP. The graphene dispersion had an average absorbance of 1.160 and an absolute value of Zeta potential |ζ| as high as 35.84 mV when using the given ternary composite dispersant. Silver–graphene composite coating with graphene distributed uniformly in it can be obtained when applying the given ternary composite dispersant to silver–graphene composite electroplating.
The effects of several surfactants including sodium dodecyl sulfate(SDS), sodium dodecylbenzenesulfonate(SDBS), sodium fatty alcohol polyoxyethylene ether sulfate(AES), sodium hexametaphosphate(SHMP), sodium lignosulfonate(SLS), Tween-20, Tween-80, polyvinyl pyrrolidone(PVP), octylphenol polyoxyethylene-10(OP-10), and polyethylene glycol-600(PEG-600) on the dispersibility of graphene in aqueous medium when they were used individually or compositely were studied based on the absorbance and Zeta potential of graphene dispersion. The optimal ternary composite dispersant was obtained as follows: 0.6 wt.%(with respect to the graphene dosage) SDBS + 1.5 wt.%(ditto)Tween-20 + 1.5 wt.%(ditto) PVP. The graphene dispersion had an average absorbance of 1.160 and an absolute value of Zeta potential |ζ| as high as 35.84 mV when using the given ternary composite dispersant. Silver–graphene composite coating with graphene distributed uniformly in it can be obtained when applying the given ternary composite dispersant to silver–graphene composite electroplating.
引文
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[4]AKBULUT H,HATIPOGLU G,ALGUL H,et al.Co-deposition of Cu/WC/graphene hybrid nanocomposites produced by electrophoretic deposition[J].Surface and Coatings Technology,2015,284:344-352.
[5]PARK S,LEE K S,BOZOKLU G,et al.Graphene oxide papers modified by divalent ions-enhancing mechanical properties via chemical cross-linking[J].ACS Nano,2008,2(3):572-578.
[6]STANKOVICH S,DIKIN D A,DOMMETT G H B,et al.Graphene-based composite materials[J].Nature,2006,442:282-286.
[7]陈英良,冯小波,侯德东.单层与双层石墨烯的光学吸收性质研究[J].物理学报,2013,62(18):187301.
[8]LV W Y,ZHENG K Q,ZHANG Z G.Performance studies of Ag,Ag-graphite,and Ag-graphene coatings on Cu substrate for high-voltage isolation switch[J].Materials and Corrosion,2018,69(12):1847-1853.
[9]胡振峰,丁小龙,金国,等.电刷镀镍-石墨烯复合镀层的制备及导热性能[J].电镀与涂饰,2017,36(21):1117-1121.
[10]GUSTAFSSON J E.A note on class effects in aptitude x treatment interactions[J].Journal of Educational Psychology,1978,70(2):142-146.
[11]ZU S Z,HAN B H.Aqueous dispersion of graphene sheets stabilized by pluronic copolymers:formation of supramolecular hydrogel[J].The Journal of Physical Chemistry C,2009,113(31):13651-13657.
[12]PAREDES J I,VILLAR-RODIL S,MARTíNEZ-ALONSO A,et al.Graphene oxide dispersions in organic solvents[J].Langmuir,2008,24(19):10560-10564.
[13]张增广,吕旺燕,苏伟,等.碳材料增强金属基复合镀层的研究进展[J].电镀与涂饰,2016,35(23):1265-1268.
[14]HUANG Y J,TAI Y W,WANG N,et al.Reduction of graphite oxide with a Grignard reagent for facile in situ preparation of electrically conductive polyolefin/graphene nanocomposites[J].Macromolecular Chemistry and Physics,2012,213(7):720-728.
[15]CO?KUN E,ZARAGOZA-CONTRERAS E A,SALAVAGIONE H J.Synthesis of sulfonated graphene/polyaniline composites with improved electroactivity[J].Carbon,2012,50(6):2235-2243.
[16]胡圣飞,张帆,张荣,等.石墨烯表面改性及其在聚合物导电复合材料中的应用研究[J].高分子材料科学与工程,2017,33(8):184-190.
[17]PATIL A J,VICKERY J L,SCOTT T B,et al.Aqueous stabilization and self-assembly of graphene sheets into layered bio-nanocomposites using DNA[J].Advanced Materials,2010,21(31):3159-3164.
[18]SHEN B,ZHAI W T,LU D D,et al.Ultrasonication-assisted direct functionalization of graphene with macromolecules[J].RSC Advances,2012,2(11):4713-4719.
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[20]张弘弘,赵晴,杜楠,等.硫代硫酸盐体系银/石墨烯复合电镀工艺及镀层性能[J].材料保护,2017,50(7):49-52.
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