Affiliation of Author(s):航天学院
Journal:Journal of Manufacturing Processes
Key Words:Carbon nanotube arrays Chemical vapor deposition Catalyst particles Adhesive properties
Abstract:This study focused on the application of vertically aligned carbon nanotubes (VACNTs) grown by thermal chemical vapor deposition as a gecko-inspired dry adhesive material. The adhesive properties of VACNTs comprising Fe and Al2O3 layers of different thicknesses were evaluated by scanning electron microscopy, Raman spectroscopy, transmission electron microscopy, and atomic force microscopy. Owing to the surface energy difference between metallic Fe and alumina, the wetting influence of the latter enabled the conversion of the iron film into metal islands (nanoparticles) at high temperature. The bionic morphological characteristics of the produced VACNTs (e.g., alignment, density, diameter, growth rate, and defects) and thus their adhesive properties were determined by the size and distribution of the catalyst particles. With respect to variable adhesion test angles, VACNTs were sensitive to peeling angles and showed high tangential but low normal adhesion strength, thereby providing controlled strong adhesion characteristics in combination with easy peel-off.
Note:Ji KJ*, Meng GY, Yuan C, Cui EH, Li Y, Sun J, Dai ZD. Synergistic effect of Fe and Al2O3 layers on the growth of vertically aligned carbon nanotubes for gecko-inspired adhesive applications. Journal of Manufacturing Processes, 2018, 33:238-244.
Indexed by:Journal paper
Discipline:Engineering
First-Level Discipline:Materials Science and Engineering
ISSN No.:1526-6125
Translation or Not:no
Date of Publication:2018-06-01
Co-author:Guiyun Meng,Cong Yuan,Meng, Guiyun,Yuan, Cong,Enhua Cui,Cui, Enhua,liyang,Jun Sun,Chen Annie,Sun, Jun,DAI Zhen Dong
Correspondence Author:jikeju