Aging characterization and lifespan prediction of silicone rubber material utilized for composite insulators in areas of atypical warmth and humidity

2016 ◽  
Vol 23 (6) ◽  
pp. 3547-3555 ◽  
Author(s):  
L. Cheng ◽  
L. Wang ◽  
Z. Guan ◽  
F. Zhang
Keyword(s):  
Silicone Rubber ◽  
Rubber Material

Performance study of RTV-2 Silicone Rubber Material For Soft Actuator by Experimental and Numerical methods: The Effect of Inflation Pressure and Wall Thickness

2020 ◽  
Vol 17 (1) ◽  
pp. 7524-7532 ◽  
Author(s):  
Deepak D. ◽  
Nitesh Kumar ◽  
Shreyas P. Shetty ◽  
Saurabh Jain ◽  
Manoj Bhat
Keyword(s):  
Numerical Methods ◽  
Wall Thickness ◽  
Silicone Rubber ◽  
Inflation Pressure ◽  
Performance Study ◽  
Rubber Material ◽  
Soft Actuator ◽  
Alternative Materials ◽  
Load Carrying ◽  
Influential Parameters

The expensive nature of currently used materials in the soft robotic industry demands the consideration of alternative materials for fabrication. This work investigates the performance of RTV-2 grade silicone rubber for fabrication of a soft actuator. Initially, a cylindrical actuator is fabricated using this material and its performance is experimentally assessed for different pressures. Further, parametric variations of the effect of wall thickness and inflation pressure are studied by numerical methods. Results show that, both wall thickness and inflation pressure are influential parameters which affect the elongation behaviour of the actuator. Thin (1.5 mm) sectioned actuators produced 76.97% more elongation compared to thick sectioned, but the stress induced is 89.61 % higher. Whereas, the thick sectioned actuator (6 mm) showed a higher load transmitting capability. With change in wall thickness from 1.5 mm to 6 mm, the elongation is reduced by 76.97 %, 38.35 %, 21.05 % and 11.43 % at pressure 100 kPa, 75 kPa, 50 kPa and 25 kPa respectively. The induced stress is also found reduced by 89.61 %, 86.66 %, 84.46 % and 68.68 % at these pressures. The average load carrying capacity of the actuator is found to be directly proportional to its wall thickness and inflation pressure.

scholarly journals A Quick Classifying Method for Tracking and Erosion Resistance of HTV Silicone Rubber Material via Laser-Induced Breakdown Spectroscopy

Sensors ◽  
2019 ◽  
Vol 19 (5) ◽  
pp. 1087 ◽  
Author(s):  
Ping Chen ◽  
Xilin Wang ◽  
Xun Li ◽  
Qishen Lyu ◽  
Naixiao Wang ◽  
...  
Keyword(s):  
Silicone Rubber ◽  
Erosion Resistance ◽  
Performance Enhancement ◽  
Filler Content ◽  
Principal Component ◽  
Laser Induced Breakdown Spectroscopy ◽  
Rubber Material ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Resistance Performance

Silicone rubber material is widely used in high-voltage external insulation systems due to its excellent hydrophobicity and hydrophobicity transfer performance. However, silicone rubber is a polymeric material with a poor ability to resist electrical tracking and erosion; therefore, some fillers must be added to the material for performance enhancement. The inclined plane test is a standard method used for evaluating the tracking and erosion resistance by subjecting the materials to a combination of voltage stress and contaminate droplets to produce failure. This test is time-consuming and difficult to apply in field inspection. In this paper, a new and faster way to evaluate the tracking and erosion resistance performance is proposed using laser-induced breakdown spectroscopy (LIBS). The influence of filler content on the tracking and erosion resistance performance was studied, and the filler content was characterized by thermogravimetric analysis and the LIBS technique. In this paper, the tracking and erosion resistance of silicone rubber samples was correctly classified using principal component analysis (PCA) and neural network algorithms based on LIBS spectra. The conclusions of this work are of great significance to the performance characterization of silicone rubber composite materials.

Hydrophobicity transfer property of silicone rubber material

2012 ◽  
Author(s):  
Zhicheng Guan ◽  
Kang Niu ◽  
Gongmao Peng ◽  
Fuzeng Zhang ◽  
Liming Wang ◽  
...  
Keyword(s):  
Silicone Rubber ◽  
Transfer Property ◽  
Rubber Material

scholarly journals Experiment Research on the Mechanical Property of Micron Particles Filled Silicone Rubber Material

2015 ◽  
Vol 9 (1) ◽  
pp. 95-101
Author(s):  
Chen Xiong ◽  
Wang Hongli ◽  
Xu Jinsheng ◽  
Zhao Lei
Keyword(s):  
Mechanical Property ◽  
Silicone Rubber ◽  
Matrix Material ◽  
Tensile Tests ◽  
Test System ◽  
Solid Particles ◽  
Uniaxial Tensile ◽  
Enhancement Effect ◽  
Rubber Material ◽  
Rate Dependent

Six kinds of different content of micron solid particles of silicone rubber materials were prepared by mixing micron Al2O3, SiO2, cross-linking agent, and catalyst, etc. into the matrix material of micron-sized hydroxyl-terminated polydimethylsiloxane. The effect of micron solid particles on the mechanical property of silicone rubber was examined by the uniaxial tensile tests. Non-contact strain test system was adopted to measure the strain response of the samples in the experiments. The results show that, the mechanical property of silicone rubber material is rate-dependent, presenting a hyper-elastic property, which is similar to rubber-like material. The strength of the granular filled material increased with the content of the solid particles, moreover, the enhancement effect caused by SiO2 was stronger than that caused by Al2O3.

Effects of Curing Temperature and Pressure on the Mechanical Properties of Gasket Material Used for Polymer Electrolyte Membrane Fuel Cells

2019 ◽  
Vol 795 ◽  
pp. 93-101
Author(s):  
Ri Dong He ◽  
Zhi Qiang Wang ◽  
Jin Zhu Tan ◽  
Li Yin ◽  
Zeng Hui Liu
Keyword(s):  
Mechanical Properties ◽  
Fuel Cells ◽  
Silicone Rubber ◽  
Polymer Electrolyte Membrane ◽  
Pem Fuel Cells ◽  
Curing Temperature ◽  
Compression Stress ◽  
Rubber Material ◽  
Gasket Material ◽  
Curing Pressure

The long-term mechanical stability of the gasket material is critical to sealing and electrochemical performance of the polymer electrolyte membrane (PEM) fuel cells. In this paper, the silicone rubber material, which is being considered as gasket material for PEM fuel cells, was fabricated at different curing temperatures and different curing pressures. Effects of the curing temperatures and curing pressures on the mechanical properties of the silicone rubber material were investigated. The tensile test results show that tensile strength of the specimen cured at the curing temperature of 160 was larger than that for the specimens cured at the curing temperature of 150 or 170 under the same curing pressure. The test results of the compression stress-strain, compression set and compression stress relaxation show that the curing temperature and curing pressure affected significantly the compression elastic modulus, compression set rate and compression stress relaxation behavior. It is found that the silicone rubber material cured at the curing temperature of 160 under the curing pressure of 10MPa had good compression mechanical properties compared to the materials cured at the other curing temperatures and curing pressure in this work.

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