Strain-rate independent small-strain-sensor: Enhanced responsiveness of carbon black filled conductive rubber composites at slow deformation by using an ionic liquid

AbstractCarbon fibre (CF) embedded into elastomeric media has been attracting incredible interest as flexible strain sensors in the application of skin electronics owing to their high sensitivity in a very small strain gauge. To further improve the sensitivity of CF/PDMS composite strain sensor, the relatively low temperature prepared TiO2 nanowire via hydrothermal route was employed herein to functionalize CF. The results showed a significant increase in the sensitivity of the TiO2@CF/PDMS composite strain sensors which was reflected by the calculated gauge factor. As the prepared TiO2 nanowire vertically embraced the surroundings of the CF, the introduced TiO2 nanowire contributed to a highly porous structure which played a predominant role in improving the sensitivity of strain sensors. Moreover, the significant strain rate dependent behavior of TiO2@CF/PDMS strain sensor was revealed when performing monotonic tests at varied strain rate. Therefore, introducing TiO2 nanowire on CF offers a new technique for fabricating flexible strain sensors with improved sensitivity for the application of flexible electronics.

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Preparation and performance of graphene/carbon black silicone rubber composites used for highly sensitive and flexible strain sensors

Sensors and Actuators A Physical ◽

10.1016/j.sna.2021.112659 ◽

2021 ◽

Vol 323 ◽

pp. 112659

Author(s):

Pan Song ◽

Ge Wang ◽

Yong Zhang

Keyword(s):

Carbon Black ◽

Silicone Rubber ◽

Strain Sensors ◽

Rubber Composites ◽

Highly Sensitive ◽

And Performance

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Orthogonal Experiment Analysis of Mechanical Thermal Conductivity on Multi-Component Fillers

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.753-755.2379 ◽

2013 ◽

Vol 753-755 ◽

pp. 2379-2382

Author(s):

Shi Meng Xu ◽

Run Bo Ma ◽

Jian Hua Du ◽

Jun Hong Liu ◽

Qi Jin

Keyword(s):

Mechanical Properties ◽

Thermal Conductivity ◽

Carbon Black ◽

Orthogonal Experiment ◽

Experiment Design ◽

Rubber Composites ◽

Orthogonal Experiment Design ◽

Rubber Composite ◽

Al Powder ◽

Experiment Analysis

Filled the N330 carbon black, silica T80 carbon black and Al powder and Fe2O3 magnetic nanoparticles, the rubber composites on multi-component electromagnetic fillers were prepared according to orthogonal experiment analysis, and the preliminary experiment conclusions of the filler prescription designs were given; Based on the experiment design, the mechanical properties and thermal conductivity of the rubber composite were tested, and the testing results were analyzed by using variance analysis. Thus, the paper shows that the effects of N330 on rubber mechanical properties are significant, and the effects of Al powder on the rubber thermal conductivity are significant. Moreover, it is highly emphasized in this paper that the orthogonal experiment design must be carefully explored before the tests are executed.

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