氧化锆包覆碳纳米管对聚偏氟乙烯纳米复合材料结晶结构的协同作用：电性能和阻燃性能。

Synergistic effects of zirconia-coated carbon nanotube on crystalline structure of polyvinylidene fluoride nanocomposites: electrical properties and flame-retardant behavior.

机构信息

Polymer Science and Engineering, School of Nano and Advanced Materials Engineering, Gyeongsang National University, Gyeongnam, Jinju, 660-701, South Korea.

出版信息

Langmuir. 2010 Mar 2;26(5):3609-14. doi: 10.1021/la903022j.

DOI:10.1021/la903022j

PMID:19908892

Abstract

Pristine multiwalled carbon nanotubes (MWNTs) and zirconia-coated multiwalled carbon nanotubes (ZrO(2)/MWNTs) by isothermal hydrolysis and the traditional chemical precipitation method have been dispersed into polyvinylidene fluoride (PVDF) copolymer by solution mixing in N,N-dimethylformamide (DMF). The effect of ZrO(2)-coated MWNTs on morphological properties, electrical properties, and flame-retardant behavior has been studied in comparison with virgin PVDF and PVDF/MWNTs nanocomposites. Due to the improved dispersion of the coated nanotubes, the incorporation of 3 wt % of ZrO(2)-coated MWNTs leads to an increase of the thermal stability and dielectric properties and a decrease of the peak heat-release rate.

摘要

未经处理的多壁碳纳米管（MWNTs）和通过等温水解以及传统的化学沉淀法制备的氧化锆涂覆多壁碳纳米管（ZrO(2)/MWNTs）已通过溶液混合分散到聚偏二氟乙烯（PVDF）共聚物中在 N,N-二甲基甲酰胺（DMF）中。与原始的 PVDF 和 PVDF/MWNTs 纳米复合材料相比，研究了 ZrO(2)涂覆的 MWNTs 对形态性能、电性能和阻燃性能的影响。由于涂覆的纳米管的分散性得到了改善，因此掺入 3wt%的 ZrO(2)涂覆的 MWNTs 会导致热稳定性和介电性能的提高，以及峰值放热率的降低。