CAJ | 학술논문

利用静电纺丝技术制备了热塑性聚氨酯/多壁碳纳米管(TPU/MWNTs)复合纳米纤维，并通过平行板接收装置实现纤维的定向排布。测试了纤维压阻敏感性随MWNTs含量的变化规律，与浇注法制备的TPU/MWNTs膜的压阻敏感性进行对比分析，结果表明MWNTs含量仅为2.91%(质量分数)时，纤维就表现出了最佳的压阻特性(Gauge factor≈11.4)，比同质量分数下膜的压阻特性(Gauge factor≈2.6)有较大的提高，同时在8%的拉伸应变内电阻的相对变化量与应变值维持良好的线性关系，线性度优于复合膜。
이용정전방사기술제비료열소성취안지/다벽탄납미관(TPU/MWNTs)복합납미섬유，병통과평행판접수장치실현섬유적정향배포。측시료섬유압조민감성수MWNTs함량적변화규률，여요주법제비적TPU/MWNTs막적압조민감성진행대비분석，결과표명MWNTs함량부위2.91%(질량분수)시，섬유취표현출료최가적압조특성(Gauge factor≈11.4)，비동질량분수하막적압조특성(Gauge factor≈2.6)유교대적제고，동시재8%적랍신응변내전조적상대변화량여응변치유지량호적선성관계，선성도우우복합막。
Electrospinning was applied to produce oriented nanofibers consisting of thermal-plastic polyurethane (TPU)and multi-walled nanotubes (MWNTs)composites.Comparison TPU/MWNTs films were made through casting technology.The relationship between relative changes in resistance versus tensile strain has been analyzed.The maximum gauge factor (≈1 1 .4)of fibers was reached when the mass fraction of MWNTs was 1.84%.At the same mass fraction,gauge factor of films was only 2.6.The piezoresistive response of fi-bers was linear within 8% of tensile strain which was better than that of TPU/MWNTs films.