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The effect of extended polymer chains on the properties of transparent multi-walled carbon nanotubes/poly(methyl methacrylate/acrylic acid) film

机译:延伸聚合物链对透明多壁碳纳米管/聚甲基丙烯酸甲酯/丙烯酸薄膜性能的影响

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摘要

Optically transparent and electrically conductive thin films composed of multi-walled carbon nanotube (MWCNT) reinforced polymethyl methacrylate/acrylic acid (PMMA/AA) were fabricated using a wire coating technique. Poly(acrylic acid) controls the level of MWCNT dispersion in aqueous mixtures and retains the well-dispersed state in the polymer matrix after solidification resulting from extended polymer chains by adjusting the pH value. The exfoliating the MWCNT bundles by extended polymer chains results in the excellent dispersion of MWCNT. It causes a lower surface electrical resistance at the same MWCNT content. The hydrophilic functional groups (-COO~(-NA) also caused a decrease in the crystallization of PMMA and led to an increase in the transmittance.
机译:使用线涂技术制作了由多壁碳纳米管(MWCNT)增强的聚甲基丙烯酸甲酯/丙烯酸(PMMA / AA)组成的光学透明且导电的薄膜。聚丙烯酸可控制MWCNT在水性混合物中的分散程度,并通过调节pH值使聚合物链延长而固化后,在聚合物基质中保持良好分散的状态。通过延长的聚合物链使MWCNT束剥落会导致MWCNT的出色分散。在相同的MWCNT含量下,它会导致较低的表面电阻。亲水性官能团(-COO〜(-NA)也引起PMMA结晶的减少,并导致透射率的增加。

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