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首页> 外文期刊>Journal of Applied Polymer Science >Antistatic packaging based onPTT/PTT-g-MA/ABS/MWCNTnanocomposites: Effect of the chemical functionalization ofMWCNTs
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Antistatic packaging based onPTT/PTT-g-MA/ABS/MWCNTnanocomposites: Effect of the chemical functionalization ofMWCNTs

机译：基于抗静电包装的ONPTT / PTT-G-MA / ABS / MWCNTNANOC复合材料：MWNTS的化学官能化的影响

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摘要

Polymer/carbon nanotube nanocomposites have attracted high interest for a wide spectrum of applications, including antistatic packaging used to protect electronic devices against electrostatic discharge. Polytrimethylene terephthalate (PTT)/maleic-anhydride-grafted PTT (PTT-g-MA)/acrylonitrile butadiene styrene (ABS) blend-based multiwall carbon nanotubes (MWCNTs) nanocomposites were prepared through extrusion. It was conducted chemical functionalization on the MWCNTs by oxidation using nitric acid to introduce functional groups. The effect of the amount (0.5 or 1.0 wt%) and functionalization of MWCNTs on the nanocomposites was investigated. Despite the poor barrier properties of PTT/PTT-g-MA/ABS/MWCNT nanocomposites due to the presence of voids confirmed by scanning electron microscopy (SEM), the nanocomposites with functionalized MWCNT (MWCNTf) showed excellent barrier properties, indicating that the functionalization process improved the interaction between the MWCNTs and the matrix. The addition of MWCNTs into PTT/PTT-g-MA/ABS blend decreased the electrical resistivity by eight orders of magnitude. The use of MWCNTfmay still disrupt the electrical network pathway and slightly decreasing the electrical resistivity, but the nanocomposites present the desired properties required for antistatic packaging.
机译：聚合物/碳纳米管纳米复合材料因其广泛的应用引起了人们的高度兴趣，包括用于保护电子设备免受静电放电的抗静电包装。通过挤出法制备了聚对苯二甲酸丙二醇酯（PTT）/马来酸酐接枝PTT（PTT-g-MA）/丙烯腈-丁二烯-苯乙烯（ABS）共混物基多壁碳纳米管（MWCNTs）纳米复合材料。通过硝酸氧化引入官能团对多壁碳纳米管进行化学功能化。研究了MWCNT的用量（0.5或1.0 wt%）和功能化对纳米复合材料的影响。尽管PTT/PTT-g-MA/ABS/MWCNT纳米复合材料由于扫描电子显微镜（SEM）证实存在空隙而具有较差的阻隔性能，但具有功能化MWCNT（MWCNTf）的纳米复合材料显示出优异的阻隔性能，表明功能化过程改善了MWCNT与基体之间的相互作用。在PTT/PTT-g-MA/ABS共混物中添加多壁碳纳米管可使电阻率降低八个数量级。MWCNTF的使用仍然会破坏电网络通路，并略微降低电阻率，但纳米复合材料呈现出抗静电包装所需的性能。

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