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190402-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

   作者:郑克勤,吕旺燕,等    单位:华南理工大学材料科学与工程学院    日期:2019-03-01     浏览:422    评论:0    
提示:中文核心期刊,中国科技核心期刊!DOI: 10.19289/j.1004-227x.2019.04.002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
 

中文核心期刊,中国科技核心期刊!    



DOI: 10.19289/j.1004-227x.2019.04.002

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

郑克勤1,吕旺燕2,王贻波2,刘仲武1, *(1.华南理工大学材料科学与工程学院,广东 广州 510641;2.广东电网有限责任公司电力科学研究院,广东 广州 510080)

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||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。

关键词:石墨烯;水性介质;分散性;表面活性剂;复配;银;复合镀层

中图分类号:TQ153.2 

文献标志码:A 

文章编号:1004 – 227X (2019) 04 – 0147 – 06

Effect of the combination of surfactants on dispersion of graphene and its application in silver-based composite plating // ZHENG Ke-qin, LYU Wang-yan, WANG Yi-bo, LIU Zhong-wu*

Abstract: 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: 0.6wt.% (with respect to the graphene dosage) SDBS + 1.5wt.% (ditto)Tween-20 + 1.5wt.% (ditto) PVP. The graphene dispersion had an average absorbance of 1.160 and an absolute value of Zeta potential (||) 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.

Keywords: graphene; aqueous medium; dispersibility; surfactant; combination; silver; composite coating

First-author’s address: School of Materials Science and Engineering, South China University of Technology,Guangzhou 510641, China

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