Improvement of the electromechanical performance of carboxymethylcellulose-based actuators by graphene nanoplatelet loading
Makaleler > Tam Makale · 2015
Yazarlar: Okan Ozdemir, Ramazan Karakuzu, Mehmet SARIKANAT, Yoldas Seki, Emine Akar, Levent Cetin, Ozgun Cem Yilmaz, Kutlay Sever, Ibrahim Sen, Baris Oguz Gurses
CELLULOSE, SCI Expanded İndekslerine Giren Dergi, Uluslararası, Wos, 2015, cilt 22, ss 3251-3260
DOI: 10.1007/s10570-015-0702-3
Özet
In this article, the effects of graphene loading (0.1, 0.2, 0.3 wt%) on both the electromechanical and mechanical properties of carboxymethylcellulose (CMC)-based actuators were investigated. CMC-based graphene-loaded actuators were prepared by using 1-butyl-3-methylimidazolium bromide. The synthesized graphene-loaded actuators were characterized by Fourier transform infrared, X-ray diffraction analysis, thermogravimetric analysis, scanning electron microscopy, and tensile tests. Electromechanical properties of the actuators were obtained under DC excitation voltages of 1, 3, 5, and 7 V with a laser displacement sensor. According to the obtained results, the ultimate tensile strength of CMC-based actuators containing 0.3 wt% graphene was higher than that of unloaded actuators by approximately 72.8 %. In addition, the Young's modulus value of the graphene-loaded actuators increased continuously with increasing graphene content. Under a DC excitation voltage of 5 V, the maximum tip displacement of 0.2 wt% graphene-loaded actuators increased by about 15 % compared to unloaded actuators.