논문 해외 국제전문학술지(SCI급) Strain-sensing properties of multi-walled carbon nanotube/polydimethylsiloxane composites with different aspect ratio and filler contents
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2020-05
- 저자명 Oh-Nyoung Hur, Ji-Hwan Ha, Sung-Hoon Park
- 학술지명 Materials
- 발행국가 해외
- 논문언어 외국어
- 키워드 #carbon nanotube; aspect ratio; polymer composite; strain sensor; hysteresis
- 원문 링크 https://www.mdpi.com/1996-1944/13/11/2431
홈페이지논문 초록 (Abstract)
For filler composite systems used in strain sensor applications, piezoresistive effect, strain hysteresis, and repeatability are critical factors, which have to be clearly evaluated and understood. To investigate the effects of the aspect ratio and content of a multi-walled carbon nanotube (MWCNT) on the strain sensor properties of the composite, MWCNT/Polydimethylsiloxane (PDMS) composites with varying filler contents and aspect ratios were fabricated. In order to uniformly disperse MWCNTs on the polymer matrix, we used a three-roll milling method to generate high shear force for de-bundling MWCNTs. Mechanical and electrical properties of the MWCNT composites were evaluated for each case. In addition, through the cyclic stretching test, we optimized the strain-sensing properties of the MWCNT composites by considering their piezoresistive effects and strain hysteresis.