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首页> 外文期刊>Journal of Applied Polymer Science >Plasticized poly(vinyl chloride) composites: Influence of different nanofillers as antimigration agents
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Plasticized poly(vinyl chloride) composites: Influence of different nanofillers as antimigration agents

机译：增塑的聚氯乙烯复合材料：不同的纳米填料作为抗迁移剂的影响

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In this study, plasticized poly(vinyl chloride) (PVC) composites with different nanofillers, including single-walled carbon nanotubes (SWCNTs), organoclay, TiO2, and ZnO nanoparticles, were prepared, and their effects on plasticizer migration were investigated. Scanning electron micrographs revealed the dispersion quality of the nanofillers in the polymer matrix. It had a significant influence on the performance of the nanofillers in the process of plasticizer migration. Migration and exudation tests showed that the nanofillers could efficiently hinder plasticizer migration. On the basis of these results, we concluded that carbon nanotubes were the best antimigration agent in the plasticized system. This was ascribed to the high aspect ratio of the SWCNTs and the good interactions between them and the plasticizer. Also, TiO2 nanoparticles showed a better performance compared to the ZnO nanoparticles. This was due to the more homogeneous dispersion of the TiO2 in the polymer matrix and the higher surface area of the particles. The differential scanning calorimetry thermograms were in good agreement with the migration tests. The lowest change in the glass-transition temperature was observed for the composite filled with SWCNTs. This indicated that a lower amount of the plasticizer migrated from PVC. The thermogravimetric analysis curves showed that the incorporation of the nanofillers improved the thermal stability of the PVC. The results could be useful for determining the efficiency of plasticized PVC in applications. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42559.
机译：在这项研究中，制备了具有不同纳米填料的增塑聚氯乙烯（PVC）复合材料，包括单壁碳纳米管（SWCNT），有机粘土，TiO2和ZnO纳米颗粒，并研究了它们对增塑剂迁移的影响。扫描电子显微照片揭示了纳米填料在聚合物基质中的分散质量。它对增塑剂迁移过程中纳米填料的性能有重大影响。迁移和渗出试验表明，纳米填料可以有效地阻止增塑剂迁移。根据这些结果，我们得出结论，碳纳米管是增塑体系中最好的抗迁移剂。这归因于SWCNT的高长径比以及它们与增塑剂之间的良好相互作用。而且，与ZnO纳米颗粒相比，TiO2纳米颗粒表现出更好的性能。这是由于TiO2在聚合物基质中的分散更均匀，并且颗粒的表面积更大。差示扫描量热法热分析图与迁移测试非常吻合。对于填充有SWCNT的复合材料，观察到玻璃化转变温度的最低变化。这表明较少量的增塑剂从PVC迁移。热重分析曲线表明，纳米填料的加入改善了PVC的热稳定性。该结果对于确定应用中增塑PVC的效率可能有用。 （c）2015 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，42559。

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