Synthesis, UV-shielding and electromagnetic wave absorbing properties of polyvinylpyrrolidone-TiO$_2$/polyacrylonitrile-SiO$_2$ nanofibre nanocomposites

Bulletin of Materials Science

OMOLFAJR NAKHAEI^1,2¹  NASSER SHAHTAHMASSEBI^1,2² 

[1] Department of Physics, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran^1;Nano Research Center, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran^2

关键词: Nanocomposites;    carbon nanofibres;    polymers;    electrospinning;    electromagnetic shielding properties.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

This paper reports electromagnetic interference (EMI) shielding effectiveness (SE) and UV-shielding performance of polyvinylpyrrolidone (PVP)–TiO$_2$/ polyacrylonitrile (PAN)–SiO$_2$ nanofibre nanocomposites synthesizedvia the single nozzle co-electrospinning method. Herein, three samples with different average diameters were fabricated using 0.3, 0.4 and 0.5 ml h$^{−1}$flow rates during the electrospinning process.Morphological characterization confirmed that a core–shell structure of nanofibre nanocomposites was formed successfully. The EMI SE of the as-prepared nanofibre nanocomposites was studied using a vector network analyser over the full X-band (8–12 GHz) frequency at room temperature. The experimental results demonstrate excellent microwave absorption properties for all samples. PVP–TiO$_2$/PAN–SiO$_2$ nanofibres with 596.67 nm average diameter show maximum total EMI (110 dB at about 9 GHz) and 98% UV-shielding performance.

【 授权许可】

CC BY