Effect of thermosetting resin matrix on resistance-temperature stability of carbon fiber conductive composites

Duan, Huajun; Wang, Xin; Xie, Guoxing; Hu, Rui; Ma, Hui

doi:10.1088/2053-1591/aae909

Cited by 4 publications

(2 citation statements)

References 35 publications

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“…CFRP composites will not be used as the structural health monitoring sensors of such structures unless such influence can be eliminated by technical means or precisely predict. It is found that the temperature-resistance effect is presented in two forms: positive temperature coefficient (PTC), that is, resistance rises as temperature rises, and Negative temperature coefficient (NTC), resistance decreases with temperature rises [15][16][17]. The main reason for this phenomenon is that the CFRP's thermal expansion coefficient changes in the process of temperature rising, which leads to internal thermal stress deformation and resistance change [18].…”

Section: Introductionmentioning

confidence: 99%

Cyclic thermoresistivity of resin-based carbon fiber bars modified with mixed carbon powder and nano-silica

Liu

Shu

et al. 2023

Mater. Res. Express

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The addition of conductive fillers to the carbon fiber bar reduces its resistivity and improves electrical stability. Unstable conductivity and susceptibility to ambient temperature change impede the application of this technique in engineering, unless such influence can be eliminated by technical means or precisely predict. In this paper, modified epoxy Resin based carbon fiber bars with 4 sets of different mixed fillers have been designed to evaluate the temperature-resistance effect under different temperature cycles. Results show that the initial volume resistivity reduces due to the incorporation of carbon powder(CP) and nano-silica(NS), and meets the lowest when the CP and NS mass ratio is 1:0.6. The volume resistivity increases linearly with the temperature rising, and reaches the maximum temperature sensitivity coefficient of 78.8 %. During the temperature cycle process, the volume resistivity of all specimens first decreases and then increases with the increasing temperature uniformly. The three groups (CP/NS ratio 1:0.2, 1:0.6, and 1:0) share the same PTC effect transition temperature range, from 30 to 60 ℃. And for the 1:1 group, the transition temperature is about 0℃, which is the lowest. Altogether, these enhancements provide avenues for future self-sensing carbon fiber composites in engineering structures.

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Section: Introductionmentioning

confidence: 99%

Cyclic thermoresistivity of resin-based carbon fiber bars modified with mixed carbon powder and nano-silica

Liu

Shu

et al. 2023

Mater. Res. Express

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“…As an excellent thermoset environmental protection material, epoxy resin has been attracted wide attentions because of its combines some excellent properties, such as mechanical properties, electric insulating property, aging resistance properties and chemical stability [1,2]. In addition, epoxy resin is widely used in the field of aerospace, construction, electrical materials and composites [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. How-ever, the three-dimensional network structure of traditional epoxy resin leads to high brittleness and poor toughness after curing, which undermines the impact damage resistance of epoxy resin materials inferior and significantly limits the practical application of epoxy resin in various fields.…”

Section: Introductionmentioning

confidence: 99%

Evolution mechanism of compression deformation of carbon black reinforced epoxy resin composites

Jang

et al. 2022

Materialwissenschaft Werkst

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In this paper, the double-element composites were developed, which contained the epoxy resin as matrix phase and carbon black rubber powder as toughening materials. Quasi-static compression tests on epoxy resin and different mass fractions carbon black rubber powder-epoxy resin composites were performed in room temperature to test their compression properties. The energy absorption performance and the energy absorption efficiency of the composites were calculated according to the compression curve. The fracture characteristics of the micro appearance of the compressed material specimen were observed by scanning electron microscope. The deformation mode of the composite was analyzed. By systematically analyzing the effects of carbon black rubber powder content on the mechanical properties of carbon black rubber powder-epoxy resin, it was found that carbon black rubber powder as a reinforced material could effectively improve the brittleness of epoxy resin, the yield strength and the adsorption properties and efficiency of composites. With the mass fraction of carbon black rubber powder increasing, the energy absorption performance of carbon black rubber powder-epoxy resin first increases and then decreases. The most significant performance observed was at a mass fraction of 5 % in carbon black rubber powder-epoxy resin composites.

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Effect of carbon fiber bundles spacing on composites and their electrothermal and anti/deicing properties

Wu,

Shi,

Zhang

et al. 2024

Materials Science and Engineering: B

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Effect of thermosetting resin matrix on resistance-temperature stability of carbon fiber conductive composites

Cited by 4 publications

References 35 publications

Cyclic thermoresistivity of resin-based carbon fiber bars modified with mixed carbon powder and nano-silica

Cyclic thermoresistivity of resin-based carbon fiber bars modified with mixed carbon powder and nano-silica

Evolution mechanism of compression deformation of carbon black reinforced epoxy resin composites

Effect of carbon fiber bundles spacing on composites and their electrothermal and anti/deicing properties

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