Research on characterization of RTV silicone rubber/LS(layered silicate) electrical insulation nanocomposites

2004 ◽  
Author(s):  
Cai Dengke ◽  
Yu Ban Hui ◽  
Wen Xishan ◽  
Lan Lei
Keyword(s):  
Silicone Rubber ◽  
Layered Silicate ◽  
Electrical Insulation ◽  
Rtv Silicone Rubber

Preparation and characterization of room temperature vulcanized silicone rubber using α-amine ketoximesilanes as auto-catalyzed cross-linkers

RSC Advances ◽  
2016 ◽  
Vol 6 (44) ◽  
pp. 38447-38453 ◽  
Author(s):  
Qian Zhao ◽  
Qingyang Liu ◽  
Huihui Xu ◽  
Yiling Bei ◽  
Shengyu Feng
Keyword(s):  
Silicone Rubber ◽  
Room Temperature ◽  
Rtv Silicone Rubber

A series of α-amine ketoximesilanes were prepared and used as auto-catalyzed cross-linkers in one component room temperature vulcanized (RTV) silicone rubber.

scholarly journals Synthesis and Characterization of Room Temperature Vulcanized Silicone Rubber Using Methoxyl-Capped MQ Silicone Resin as Self-Reinforced Cross-Linker

Polymers ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1142 ◽  
Author(s):  
Jianye Ji ◽  
Xin Ge ◽  
Xiaoyan Pang ◽  
Ruoling Liu ◽  
Shuyi Wen ◽  
...  
Keyword(s):  
Silicone Rubber ◽  
Room Temperature ◽  
Degradation Rate ◽  
Light Transmission ◽  
Characteristic Temperature ◽  
Cross Linking ◽  
Silicone Resin ◽  
Cross Linker ◽  
Rtv Silicone Rubber

Methoxyl-capped MQ silicone resin (MMQ) was first synthesized by the hydrosilylation of vinyl-containing MQ silicone resin and trimethoxysilane and then used in condensed room-temperature vulcanized (RTV) silicone rubber as a self-reinforced cross-linker. Results show that modified silicone rubber exhibits good light transmission. Compared with unmodified silicone rubber, the hardness, tensile strength and elongation of MMQ at the break are increased by 26.4 A, 2.68 MPa and 65.1%, respectively. In addition, the characteristic temperature of 10% mass loss is delayed from 353.5 °C to 477.1 °C, the temperature at maximum degradation rate is also delayed from 408.9 °C to 528.4 °C and the residual mass left at 800 °C is increased from 1.2% to 27.7%. These improved properties are assigned to the synergistic effect of the rigid structure of MMQ, the formation of a dense cross-linking structure in polymers and the uniform distribution of MMQ cross-linking agent in RTV silicone rubber.

Preparation and Characterization of Graphene/RTV Silicone Rubber Composites

2013 ◽  
Vol 652-654 ◽  
pp. 11-14 ◽  
Author(s):  
Jian Dong ◽  
Peng Hui Wang ◽  
Dao Bao Sun ◽  
Yu Liang Xu ◽  
Ke Peng Li
Keyword(s):  
Silicone Rubber ◽  
Graphene Nanosheets ◽  
Continuous Phase ◽  
Rubber Composites ◽  
Parallel Sample ◽  
Sem Study ◽  
Rubber Composite ◽  
Dsc Curves ◽  
Rtv Silicone Rubber

In this article we report the preparation of a graphene/room temperature vulcanized (RTV) silicone rubber composite. Both the morphology and the properties of the composite were investigated in detail. SEM study shows that the composite has a microphase-separated structure. PDMS is the continuous phase, and the randomly distributed graphene nanosheets and a few aggregates are the dispersed phase. However, DSC curves of the composites have only one glass transition temperature (Tg). With the increases of the graphene content, Tg increases and Tm decreases. Mechanical properties tests show that the addition of graphene has a significant reinforcement effect on silicone rubber. The tensile strength is 0.37MPa with graphene mass fraction at 1.0%, which increases 76% compared with that of pure silicone rubber parallel sample.

Flame Retardancy and Excellent Electrical Insulation Performance of RTV Silicone Rubber

Polymers ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 2854
Author(s):  
Muhammad Tariq Nazir ◽  
Arslan Khalid ◽  
Imrana Kabir ◽  
Cheng Wang ◽  
Juan-Carlos Baena ◽  
...  
Keyword(s):  
Flame Retardancy ◽  
Silicone Rubber ◽  
Dielectric Breakdown ◽  
Breakdown Strength ◽  
Volume Resistivity ◽  
Electrical Insulation ◽  
Outdoor Insulation ◽  
Power Frequency ◽  
A Minor ◽  
Rtv Silicone Rubber

Room temperature vulcanized (RTV) silicone rubber filled with aluminum trihydrate (ATH) is substantially engaged in electrical outdoor insulation applications. The pristine silicone rubber is highly combustible. ATH filled silicone rubber offers excellent electrical insulation but lacks in providing adequate flame retardancy. This short communication reports the novel results on improved flame retardancy of pristine and ATH filled silicone rubber whilst retaining the electrical insulation properties to a great extent. Results suggest that the presence of only one percent of graphene nanoplatelets with ATH sharply reduces the heat release rate and rate of smoke release. A minor reduction in dielectric breakdown strength and volume resistivity is noticed. Furthermore, permittivity and dielectric loss at power frequency suggest that a marginal 1% concentration of nanoplatelet with ATH is an excellent approach to fabricate flame retardant silicone rubber with an acceptable electrical insulation level.

Electrical insulation properties of silicone rubber under accelerated corona and thermal aging

2020 ◽  
Author(s):  
El Hadi Belhiteche ◽  
Sébastien Rondot ◽  
Mustapha Moudoud ◽  
Philippe Dony ◽  
Omar Jbara
Keyword(s):  
Silicone Rubber ◽  
Thermal Aging ◽  
Electrical Insulation ◽  
Electrical Insulation Properties

Electrical Insulation Property of Silicone Rubber Tube in High Elevations

2012 ◽  
Vol 503-504 ◽  
pp. 1006-1009
Author(s):  
Guo Min Li ◽  
Chuan Li ◽  
Yun Shui Xu ◽  
Qing Hua Yan ◽  
Shao Quan Zhang ◽  
...  
Keyword(s):  
Silicone Rubber ◽  
High Potential ◽  
Electrical Insulation ◽  
Chain Molecule ◽  
Rubber Tube ◽  
Insulation Property ◽  
Power Frequency ◽  
Test Voltage ◽  
High Elevations ◽  
Potential Test

Silicone rubber is a polymer with the chain molecule structure of Si-O bond [1]. At the environment of 1970 m elevation, the power frequency withstand voltage and condensation experiments will be tested by using two silicone rubber tubes with length of 300mm and 330mm, which lasts one minute, under 85kV. In the high potential test, the silicone rubber tube does not appear the flashover when the surface of tubes weren’t polluted. However, the test voltage increases to 70kV and the surface of the silicone rubber tube will appear flashover, when the tubes are plated in the condensation conditions. The high potential experiments indicate that the electrical insulation property of silicone rubber tube is seriously debated in the humidity environment.

Preparation and characterization of exfoliated layered double hydroxide/silicone rubber nanocomposites

2010 ◽  
Vol 119 (1) ◽  
pp. 343-351 ◽  
Author(s):  
Bratati Pradhan ◽  
Suneel Kumar Srivastava ◽  
Rajakumar Ananthakrishnan ◽  
Anubhav Saxena
Keyword(s):  
Layered Double Hydroxide ◽  
Silicone Rubber ◽  
Rubber Nanocomposites ◽  
Double Hydroxide
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