http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Zhu Siyue,Qin Xiantao,Zou Zuxu,Zhang Rongtang,Jiang Yi 한국탄소학회 2020 Carbon Letters Vol.30 No.1
For applications in cement-based materials, studies on carbon-based nanomaterials have been almost exclusively on carbon nanotubes, carbon nanofbers, and graphite oxide. Graphene sheets (GPs), as a kind of carbon-based nanomaterials, show unusual mechanical, electrical, optical, and other properties. In this paper, the main focus is to enhance the efect of GPs by improving dispersion through ultrasonication and use of surfactant. Then, dispersion and stability are quantitatively measured by comparing absorbance spectra through spectrophotometry and qualitatively observed through digital imaging and SEM imaging. Therefore, the dispersing protocol is optimized and the most efective and stable dispersion is achieved. At last, the piezoresistivities under compressive load of GPs/cement composites pastes at diferent additions of GPs are studied by comparing with plain cement paste.