Preparation of Bamboo-Like Carbon Nanotube Loaded Piezoresistive Polyurethane-Silicone Rubber Composite

Polymers

Mariann Kollar¹  Miklós Varga²  László Vanyorek²  Béla Fiser²  Mohammed Nabeel²  Béla Viskolcz²  László Kuzsela³  Ádám Filep⁴ 

[1] Institute of Ceramics and Polymer Engineering, University of Miskolc, 3515 Miskolc, Hungary;Institute of Chemistry, University of Miskolc, 3515 Miskolc, Hungary;Institute of Materials Science and Technology, University of Miskolc, 3515 Miskolc, Hungary;Institute of Metallurgical and Foundry Engineering, University of Miskolc, 3515 Miskolc, Hungary;

关键词: nitrogen-doped bamboo-shaped carbon nanotube;    N-BCNT;    PU;    nanofiller;    piezoresistive;   

DOI  :  10.3390/polym13132144

来源: DOAJ

【 摘 要 】

In this study, a novel technology is reported to prepare a piezoresistive polyurethane-silicone rubber nanocomposite. Polyurethane (PU) foam was loaded with a nitrogen-doped bamboo-shaped carbon nanotube (N-BCNT) by using dip-coating, and then, impregnated with silicone rubber. PU was used as a supporting substrate for N-BCNT, while silicone rubber was applied to fill the pores of the foam to improve recoverability, compressive strength, and durability. The composite displays good electrical conductivity, short response time, and excellent repeatability. The resistance was reduced when the amount of N-BCNT (0.43 wt %) was increased due to the expanded conductive path for electron transport. The piezoresistive composite has been successfully tested in many applications, such as human monitoring and finger touch detection.

【 授权许可】

Unknown