Highly sensitive and stretchable graphene-silicone rubber composites for strain sensing

Yang, Heng; Zhou, Zheng; Gong, Linghui; Li, Yuan; Yuan, Yanan; Liu, Yinghua

doi:10.1016/j.compscitech.2018.08.022

Cited by 208 publications

(151 citation statements)

References 35 publications

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“…Rubber materials have been widely used in shock absorbers, Impact resistance panels and other engineering applications [31][32][33]. Besides, high flexibility [34] and high damping properties [35] make rubber matrix composites a good option for blast and ballistic applications.…”

Section: Introductionmentioning

confidence: 99%

High velocity impact behavior of Kevlar/rubber and Kevlar/epoxy composites: A comparative study

Khodadadi

Liaghat

Bahramian

et al. 2019

Composite Structures

100

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This paper presents a comparison of behavior and energy absorption of neat Kevlar fabric and polymer matrix composites under high velocity impact loading. Two types of matrices including rubber and thermoset (epoxy) matrices were used in order to study the effect of a hard and brittle matrix compared with the soft and flexible matrix on energy absorption of the composite. Moreover, two types of rubber matrix with high hardness (HH) and low hardness (LH) were used in this study to investigate the effect of rubber matrix formulation on impact resistance of composites. Ballistic impact tests were performed by firing a 10 mm hemispherical projectile onto neat fabric and composites in a velocity range of 30 m/s to 150 m/s for two-and four-layer samples. Results show that the matrix affects the ballistic performance of composites significantly. Rubber matrix enhances the energy absorption of the fabric by keeping composite flexibility. Increase the number of layers for Kevlar/rubber composite results in better ballistic performance. On the contrary, the thermoset matrix leads to an inflexible composite that restricts the fabric deformation and has a negative effect on the fabric's ballistic performance. Finally, damage mechanisms were discussed in detail for each sample.

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Section: Introductionmentioning

confidence: 99%

High velocity impact behavior of Kevlar/rubber and Kevlar/epoxy composites: A comparative study

Khodadadi

Liaghat

Bahramian

et al. 2019

Composite Structures

100

View full text Add to dashboard Cite

show abstract

“…In addition, the excellent adhesion characteristics of the PU layer were able to form strong interfacial bonds with the MWCNT layer. The repeatability itself can be implemented by the PU layer, but the stability of the electrical signal, such as signal fluctuations, is affected by the robustness of the electrical network of the MWCNT layer . For this reason, for the double PU layer samples, different signal patterns were observed.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of Hybrid Structured MWCNT/UHMWPE Fiber Sensors for Strain Sensing and Load Bearing of Composite Structures

Park

Kim

2019

Adv Materials Technologies

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In this study, a hybrid (soft and strong) coaxial structured fiber sensor that has high load carrying capacity and high sensing performance for measuring mechanical strain is prepared by using a dry‐jet wet spinning system and simple dip‐coating method. The strong core of the fiber sensor is made of ultrahigh molecular weight polyethylene that has highly oriented molecular structure due to a hot‐stretching process to increase the tensile strength. The soft sheath of the fiber sensor is an electrically conductive layer composed of a multilayer structure with varying concentrations of multiwalled carbon nanotubes and polyurethane layers to enhance the sensing performance. A scanning electron microscope is used to investigate the surface morphology of the fiber sensors. Single filament tensile tests are performed to measure the mechanical properties of the fiber sensors. The signal‐to‐noise ratio, strain sensitivity, repeatability, and degree of hysteresis of the fiber sensors are measured during static and dynamic tensile tests to determine the sensing performance. Experimental results confirm that the hybrid structured fiber sensor shows significantly enhanced mechanical properties due to the control of the hot‐stretching process and significantly enhances sensing performances due to the control of the structural configuration of the conductive layers.

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“…[ 23–25 ] However, nanofillers tend to aggregate and disperse poorly in a rubber matrix because of the relatively weak interaction with rubbers. [ 26 ] Although the methods including solution cocoagulation [ 27 ] and surface modification [ 10 ] have been investigated to assist in the dispersion of nanofillers in the rubber matrix, these methods are very complicated, and solvents and contaminants are often used. It is necessary to develop a simple, green, and scalable route for preparing FSR composites.…”

Section: Introductionmentioning

confidence: 99%

Mechanical, dielectric, and thermal properties of fluorosilicone rubber composites filled with silica/multiwall carbon nanotube hybrid fillers

Tan

Liu

Yao

et al. 2020

J of Applied Polymer Sci

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In this work, hybrid fillers consist of modified silica (SiO2) and multiwalled carbon nanotube (MWCNT) were used to improve the mechanical, dielectric, and thermal properties of fluorosilicone (FSR) composites via a direct mechanical mixing method. With the increase of CNT loading in SiO2/CNT hybrid loading ratio, the tensile properties, dielectric constant, electrical conductivity, and thermal properties all increase without a sharp sacrifice of flexibility. The dielectric constant of FSR‐S15/C5 achieved 7,370 @1 kHz, which is about four orders of the FSR‐S20, and the dielectric loss remains as low as 0.676 @1 kHz. Therefore, the linkage of SiO2 and FSR chains not only enhances the interfacial interaction between the fillers and FSR matrix but also decreases the agglomeration of the fillers in matrix. What is more, modified SiO2 and CNT were designed as the effective hybrid filler to improve the performance of the polymeric matrix through synergic effect.

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Highly sensitive and stretchable graphene-silicone rubber composites for strain sensing

Cited by 208 publications

References 35 publications

High velocity impact behavior of Kevlar/rubber and Kevlar/epoxy composites: A comparative study

High velocity impact behavior of Kevlar/rubber and Kevlar/epoxy composites: A comparative study

Preparation and Characterization of Hybrid Structured MWCNT/UHMWPE Fiber Sensors for Strain Sensing and Load Bearing of Composite Structures

Mechanical, dielectric, and thermal properties of fluorosilicone rubber composites filled with silica/multiwall carbon nanotube hybrid fillers

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