广州化学2024，Vol.49Issue(1)：11-15,5.DOI:10.16560/j.cnki.gzhx.20240128
巯基改性AgNWs用于提升AgNWs/聚乙烯醇/硼砂水凝胶电导率
Mercapto-modified AgNWs for Enhancing the Conductivity of AgNWs/PVA/Borax Hydrogels
朱海鑫 1孙菲 1曾俊 1姜珊珊 1黄月文 1宋斌 1王斌1
作者信息
- 1. 中国科学院广州化学研究所,广东 广州 510650||中国科学院新型特种精细化学品工程实验室,广东 广州 510650||国科广化(南雄)新材料研究院有限公司,广东 南雄 512400||国科广化韶关新材料研究院,广东 南雄 512400||中国科学院大学,北京 100049
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摘要
Abstract
Silver nanowires(AgNWs)are widely used in flexible electronic devices due to their excellent conductivity,bendability and large aspect ratio.However,the high contact resistance between silver nanowires and the poor dispersion in the matrix can greatly reduce their conductive network ground conductivity.In this paper,AgNWs with an average length of 79.44 µm and an average diameter of 102.29 nm were successfully synthesized by the polyol method,and then the surface of AgNWs was modified with modifiers containing-SH and-OH by taking advantage of the strong coordination between S and Ag to study their dispersion in hydrogels and their contribution to the conductivity of hydrogels.The results showed that the modification of AgNWs by thioglycerol(MPD)modifier was the most effective.When the volume ratio of ethanol dispersion of MPD(5 mM)to ethanol dispersion of AgNWs(2 mg/mL)was 1:1,the modifier was relatively uniformly distributed on the surface of AgNWs,and there was no large agglomeration.The modified AgNWs were added to the polyvinyl alcohol(PVA)/borax hydrogel,and the hydrogel conductivity was 0.858 S/m when the addition amount was 0.04%,which was a 94%increase in conductivity compared with that of the PVA/borax hydrogel with unmodified AgNWs.关键词
银纳米线/改性/硫代甘油/水凝胶/电导率Key words
silver nanowires/modification/thioglycerol/hydrogel/electrical conductivity分类
化学化工引用本文复制引用
朱海鑫,孙菲,曾俊,姜珊珊,黄月文,宋斌,王斌..巯基改性AgNWs用于提升AgNWs/聚乙烯醇/硼砂水凝胶电导率[J].广州化学,2024,49(1):11-15,5.
