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首页> 外文期刊>Asian Journal of Chemistry: An International Quarterly Research Journal of Chemistry >Study on the Influence of Modified Multi-Walled Carbon Nanotubes to the Shear Strength of Urea-Formaldehyde Resin Adhesive
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Study on the Influence of Modified Multi-Walled Carbon Nanotubes to the Shear Strength of Urea-Formaldehyde Resin Adhesive

机译:改性多壁碳纳米管对脲醛树脂胶粘剂剪切强度影响的研究

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摘要

Multi-walled carbon nanotubes (MWCNTs) were modified successfully with concentrated sulfuric aciditric acid 3:1 (v/v) and anionic surfactant, then MWCNTs/urea-formaldehyde resin (UF) composites were prepared through mechanical mixing and ultrasonic method. The results show that the surface of MWCNTs was introduced carboxyl groups and the hydrophilic groups of-OSO3~(2-) after modification. Shear strength of MWCNTs/UF conposites increased by 90.7 % comparing with pure UF. The optimal proportion of sodium dodecyl sulfate (SDS)/MWCNTs is 2:1 (wt. ratio), which the modified MWCNTs could be dispersive in UF resin, the mixing time decreased by adding surfactant.
机译:用浓硫酸/硝酸3:1(v / v)和阴离子表面活性剂成功修饰了多壁碳纳米管(MWCNTs),然后通过机械混合和超声方法制备了MWCNTs /脲醛树脂(UF)复合材料。结果表明,改性后的碳纳米管表面引入了羧基和-OSO3〜(2-)的亲水基。与纯UF相比,MWCNTs / UF复合材料的剪切强度提高了90.7%。十二烷基硫酸钠(SDS)/ MWCNT的最佳比例为2:1(重量比),该改性的MWCNT可以分散在UF树脂中,通过添加表面活性剂可以减少混合时间。

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