scholarly journals Synthesis and characterization of electrically conductive silicone rubber — TiB2 composites

2019 ◽  
Vol 2 (2) ◽  
pp. 49
Author(s):  
Aparna M Joshi ◽  
Anjali A Athawale
Keyword(s):  
Silicone Rubber ◽  
Fine Particles ◽  
Morphological Characterization ◽  
Synthesis And Characterization ◽  
Electrically Conductive ◽  
Conductive Composites ◽  
Micron Size ◽  
Temperature And Pressure ◽  
Conductive Silicone Rubber

In this paper, electrically conductive composites comprised of silicone rubber and titanium diboride (TiB2) were synthesized by conventional mixing methods. Fine particles of TiB2 (in micron size) and 10 parts per hundred parts of rubber (phr) proportion of carbon black (XC-72) were used to make the composites with HTV silicone rubber. The composites were cured at appropriate temperature and pressure and the effect on the electrical properties was studied. The resistance of the silicone rubber is ~ 1015Ω which decreases to 1–2 kΩ in case of composites with negligible effect of heat ageing. The hardness increases by ~ 35% simultaneous to the decrease of ~ 47% in the tensile strength. Morphological characterization indicates the homogeneous dispersion of the fillers in the composite.

scholarly journals Synthesis and Characterization of Electrically Conductive Silicone Rubber – TiB2 Composites

2018 ◽  
Author(s):  
Aparna M Joshi
Keyword(s):  
Silicone Rubber ◽  
Fine Particles ◽  
Morphological Characterization ◽  
Synthesis And Characterization ◽  
Electrically Conductive ◽  
Conductive Composites ◽  
Micron Size ◽  
Temperature And Pressure ◽  
Conductive Silicone Rubber

Abstract Electrically conductive composites comprised of silicone rubber and titanium diboride (TiB2) were synthesized by conventional mixing methods. Fine particles of TiB2 (in micron size) and 10 parts per hundred parts of rubber (phr) proportion of carbon black (XC-72) were used to make the composites with HTV silicone rubber. The composites were cured at appropriate temperature and pressure and the effect on the electrical properties was studied. The resistance of the silicone rubber is ~ 1015Ω which decreases to 1 – 2 kΩ in case of composites with negligible effect of heat ageing. The hardness increases by ~ 35% simultaneous to the decrease of ~ 47% in the tensile strength. Morphological characterization indicates the homogeneous dispersion of the fillers in the composite.

scholarly journals Synthesis and characterization of nanostructured ceramics powders for biomedical applications

2007 ◽  
Vol 12 (4) ◽  
pp. 574-582 ◽  
Author(s):  
Nelson Heriberto de Almeida Camargo ◽  
O. J. Bellini ◽  
Enori Gemelli ◽  
M. Tomiyama
Keyword(s):  
Calcium Phosphate ◽  
Nanostructured Materials ◽  
Biomedical Applications ◽  
Calcium Phosphates ◽  
Morphological Characterization ◽  
Synthesis And Characterization ◽  
Powder Synthesis ◽  
Mineralogical Characteristics ◽  
Nanostructured Ceramics

Nanostructured materials have been largely studied in the last few years because they have a great potential to applications in different fields like physics, chemistry, biology, mechanic and medicine. Synthesis and characterization of nanostructured materials is a subject of great interest involving science, market, politicians, government and society. The nanostructured materials are in demand in biomedical area, mainly the bioceramics composed of calcium phosphates (Ca/P), which have an excellent biocompatibility and mineralogical characteristics similar to those of bones. The aim of this work was to optimize the method of powder synthesis of nanostructured calcium phosphate and of nanocomposites composed of calcium phosphate//SiO2n, containing 5, 10 and 15% (in volume) of nanometric silica (SiO2n). The results are expressed according to the method of synthesis, mineralogical and morphological characterization, and thermal behavior for the different compositions of the nanostructured powder synthesized.

Synthesis and characterization of polypyrrole-graft-poly(ε-caprolactone) copolymers: new electrically conductive nanocomposites

2002 ◽  
Vol 126 (2-3) ◽  
pp. 173-178 ◽  
Author(s):  
D Mecerreyes ◽  
R Stevens ◽  
C Nguyen ◽  
J.A Pomposo ◽  
M Bengoetxea ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Electrically Conductive ◽  
Conductive Nanocomposites

Effect of Thixotropic Agent on the Properties of Conductive Silicone Rubber Gasket for EMI Shielding

2011 ◽  
Vol 239-242 ◽  
pp. 3350-3353 ◽  
Author(s):  
Xiao Hei Liu ◽  
Zhi Dong Xia ◽  
Meng Ke Zhao ◽  
Hu Zhou ◽  
Ying Li ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Silicone Rubber ◽  
Volume Resistivity ◽  
Emi Shielding ◽  
Rubber Gasket ◽  
Conductive Composites ◽  
Humidity Chamber ◽  
Conductive Fillers ◽  
Electro Magnetic ◽  
Conductive Silicone Rubber

In this study, a thixotropic agent was applied to improve the aspect ratio of the silicone rubber gasket and the resulting obtained through modification showed an increase in aspect ratio from 0.26 to 0.91 with the relative to the gasket without thixotropic agent. Compared with the silicone rubber without thixotropic agent, the mechanical properties of the silicone rubber with thixotropic agent were discussed and the results revealed that the shift was very small. In addition, using Ag-coated Cu dendritic powder as conductive fillers, conductive silicone rubber with the resistivity (0.004Ω·cm) was prepared comparable to the relative commercial products can be used for electro-magnetic interference (EMI). The reliability of the conductive composites under aging at 85°C and 85% room humidity (RH) in a temperature/humidity chamber for 48 h was also discussed and the results showed that the shift of the volume resistivity was almost negligible which can meet the actual needs completely.

Synthesis and characterization of polymer precursors bearing 2,2-dicyanovinyl groups and their curing to thermally stable and electrically conductive resins

Polymer ◽  
1995 ◽  
Vol 36 (5) ◽  
pp. 1097-1107 ◽  
Author(s):  
Constantinos D. Diakoumakos ◽  
John A. Mikroyannidis ◽  
Christoforos A. Krontiras ◽  
Michael N. Pisanias
Keyword(s):  
Synthesis And Characterization ◽  
Thermally Stable ◽  
Electrically Conductive ◽  
Polymer Precursors ◽  
Conductive Resins

Synthesis and Characterization of Poly{1,2-bis(2-seleninyl)ethene}, a Novel Electrically Conductive Polymer with Diminished Band Gap

1998 ◽  
Vol 31 (4) ◽  
pp. 1221-1228 ◽  
Author(s):  
S. C. Ng ◽  
H. S. O. Chan ◽  
T. T. Ong ◽  
K. Kumura ◽  
Y. Mazaki ◽  
...  
Keyword(s):  
Band Gap ◽  
Conductive Polymer ◽  
Synthesis And Characterization ◽  
Electrically Conductive

Synthesis and characterization of self-assembled three-dimensional flower-like iron(iii) oxide–indium(iii) oxide binary nanocomposites

RSC Advances ◽  
2015 ◽  
Vol 5 (48) ◽  
pp. 38093-38099 ◽  
Author(s):  
Zongqi Li ◽  
Hua-Feng Fei ◽  
Yongxia Tan ◽  
Xuezhong Zhang ◽  
Zemin Xie ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Thermal Resistance ◽  
Silicone Rubber ◽  
Three Dimensional ◽  
Synthesis And Characterization ◽  
Binary Metal ◽  
Binary Metal Oxide ◽  
Self Assembled

Three-dimensional flower-like iron(iii) oxide–indium(iii) oxide binary metal oxide nanocomposites were successfully fabricated by a simple and economical route; and it can be used as fillers to significantly enhance the thermal resistance of silicone rubber under nitrogen.

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