Gold functionalized-graphene oxide-reinforced acrylonitrile butadiene rubber nanocomposites for piezoresistive and piezoelectric applications
* 본 문서는 배포용으로 복사 및 편집이 불가합니다.
서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon letters / 25권
ㆍ저자명 : Bismark Mensah, Dinesh Kumar, Gi-Bbeum Lee, Joohye Won, Kailash Chandra Gupta, Changwoon Nah
ㆍ저자명 : Bismark Mensah, Dinesh Kumar, Gi-Bbeum Lee, Joohye Won, Kailash Chandra Gupta, Changwoon Nah
목차
Abstract1. Introduction
2. Experimental
2.1. Materials
2.2. Synthesis of GOAu nanoparticles
2.3. Preparation of NBR-GOAu nanocomposites
2.4. Characterization
2.4.1. Scanning electron microscopy
2.4.2. Ultraviolet spectroscopy
2.4.3. X-ray diffraction (XRD)
2.4.4. X-ray photoelectron spectroscopy (XPS)
2.4.5. Raman spectroscopy
2.4.6. Cure property
2.4.7. Crosslinking density
2.4.8. Tensile property
2.4.9. Thermal analysis (DSC and TGA)
2.4.10. Dielectric spectroscopy
3. Results and Discussion
3.1. Characterization of GOAu nanoparticles
3.2. Morphology and dispersion of GOAunanoparticles in NBR matrix
3.3. Cure properties
3.4. Mechanical properties
3.5. Thermal degradation behavior
3.6. Effect of strain on electrical resistance
3.7. Dielectric properties
3.8. Gauge factor
4. Conclusions
Conflict of Interest
Acknowledgements
References
영어 초록
Gold functionalized graphene oxide (GOAu) nanoparticles were reinforced in acrylonitrilebutadiene rubbers (NBR) via solution and melt mixing methods. The synthesized NBR-GOAu nanocomposites have shown significant improvements in their rate of curing, mechanical strength, thermal stability and electrical properties. The homogeneous dispersion of GOAu nanoparticles in NBR has been considered responsible for the enhanced thermal conductivity, thermal stability, and mechanical properties of NBR nanocomposites. In addition, the NBR-GOAu nanocomposites were able to show a decreasing trend in their dielectric constant (ε´) and electrical resistance on straining within a range of 10–70%. The decreasing trend in ε´ is attributed to the decrease in electrode and interfacial polarization on straining the nanocomposites. The decreasing trend in electrical resistance in the nanocomposites is likely due to the attachment of Au nanoparticles to the surface of GO sheets which act as electrical interconnects. The Au nanoparticles have been proposed to function as ball rollers in-between GO nanosheets to improve their sliding on each other and to improve contacts with neighboring GO nanosheets, especially on straining the nanocomposites. The NBR-GOAu nanocomposites have exhibited piezoelectric gauge factor (GFε´) of ~0.5, and piezo-resistive gauge factor (GFR) of ~0.9 which clearly indicated that GOAu reinforced NBR nanocomposites are potentially useful in fabrication of structural, high temperature responsive, and stretchable strain-sensitive sensors.참고 자료
없음태그
"Carbon letters"의 다른 논문
Blending effect of pyrolyzed fuel oil and coal tar in p..6페이지
Carbon molecular sieves from soybean straw-based activa..10페이지
Evaluation of thymolphthalein-grafted graphene oxide as..8페이지
Theoretical study on electrical behavior of carbon chai..5페이지
Combination of ultrasonic assisted liquid phase exfolia..5페이지
Novel thermoplastic toughening agents in epoxy matrix f..7페이지
The effect of the modification methods on the catalytic..10페이지
Numerical study on heat transfer and densification for ..8페이지
Preparation and capacitance properties of graphene base..11페이지
Hierarchical porous carbon materials with ultrahigh spe..5페이지