Silicone rubber nanocomposites containing a small amount of hybrid fillers with enhanced electrical sensitivity |
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| Affiliation: | 1. School of Computer Science, Engineering and Mathematics, Flinders University, South Australia 5043, Australia;2. Centre for Advanced Materials Technology, School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, NSW 2006, Australia;3. National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangdong 510640, China;1. Engineering Laboratory for Functionalized Carbon Materials, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China;2. Laboratory of Advanced Materials, School of Materials, Tsinghua University, Beijing, 100084, China;1. Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, P.R. China;2. Certification, Accreditation and Quality Branch, China Zhijian Publishing House, Standards Press of China, Beijing, P.R. China |
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| Abstract: | A conductive silicone rubber (SR) composite, filled with both carbon nanotubes (CNTs) and carbon black (CB) is prepared by a simple ball milling method. Because of the good dispersion and synergistic effects of CNT and CB, the SR composite (SR with 2.5 phr CB and 1.0 phr CNT hybrid fillers) shows improvement in mechanical properties such as tensile strength and strain to failure. As well, due to the assembly of conductive pathways generated by the CNT and CB, the nanocomposite becomes highly conductive at a comparatively low concentration, with high sensitivity for tensile and compressive stress. Long-term measurement of properties shows that the SR composite maintains the excellent electrical properties under different strain histories. These outstanding properties show that the SR composite has potential applications in tensile and pressure sensors. |
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