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首页> 外文期刊>Journal of Applied Polymer Science >Improved rheological properties and stability of multiwalled carbon nanotubes/polymer in harsh environment
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Improved rheological properties and stability of multiwalled carbon nanotubes/polymer in harsh environment

机译：苛刻环境中多壁碳纳米管/聚合物的改善流变性能和稳定性

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摘要

This work aims to improve the rheological properties and stability of multiwalled carbon nanotubes (MWCNTs)/acrylamide (AA) base skeleton polymer blends at harsh environment of high salinity-high temperature (HS-HT) or various pH. Different co/terpolymers have been accomplished to modify the structure of AA polymer by free-radical copolymerization of AA-based monomers. Anionic, cationic, and hydrophobic functional groups were used for the synthesis of polyelectrolyte, polyampholytic, and partially hydrophobic AA polymer types. The conversion, molecular weight, and poly dispersity of co/terpolymers have been evaluated by nuclear magnetic resonance (H-1-NMR), gel permeation chromatography, and differential scanning calorimetry analysis. The effects of sonication power, concentration of polymer, and concentration of MWCNTs were also investigated on rheological behavior of co/terpolymers. The results show that negative polyelectrolyte and polyampholytic polymers are the best candidates for the improvement of MWCNTs/polymer stability and viscosity at HS-HT and alkali environment, respectively. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47205.
机译：该工作旨在提高多壁碳纳米管（MWCNT）/丙烯酰胺（AA）基骨架聚合物在高盐度高温（HS-HT）或各种pH的苛刻环境下的流变性能和稳定性。已经完成了不同的Co /三元共聚物以通过自由基共聚来改变AA聚合物的结构。使用阴离子，阳离子和疏水性官能团用于合成聚电解质，多聚晶溶解和部分疏水的AA聚合物类型。 CO /三元共聚物的转化，分子量和多分散性已经通过核磁共振（H-1-NMR），凝胶渗透色谱和差示扫描量热法分析来评估。还研究了Co /三元共聚物的流变行为的超声波功率，聚合物浓度和MWCNT的浓度的影响。结果表明，负聚电解质和多聚体聚合物分别是改善HS-HT和碱环境下改善MWCNT /聚合物稳定性和粘度的最佳候选者。 （c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,47205。

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