Electrical conductivity and rheological properties of carbon black based conductive polymer composites prior to and after annealing

Gao, Qingsen; Liu, Jingguang; Liu, Xianhu

doi:10.1177/09673911211001277

Cited by 4 publications

(1 citation statement)

References 43 publications

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“…Recently, Gao et al [ 53 ] presented interesting studies about the effect of thermal treatment (200 °C, 2 h) on the electrical and rheological properties of poly(methyl methacrylate) and polystyrene composites filled with carbon black. The main finding showed that annealing treatments resulted in the decrease in the electrical conductivity of conductive polymer composites, which can be attributed to the breakdown of the unstable conductive pathways and the formation of secondary CB aggregates, which is in agreement with our results.…”

Section: Resultsmentioning

confidence: 99%

Multiple Reprocessing of Conductive PLA 3D-Printing Filament: Rheology, Morphology, Thermal and Electrochemical Properties Assessment

et al. 2023

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Additive manufacturing technologies are gaining more and more attention, resulting in the development or modification of 3D printing techniques and dedicated materials. On the other hand, economic and ecological aspects force the industry to develop material recycling strategies. In this work, the multiple reprocessing of a commercially available PLA conductive composite with carbon black filler, dedicated to 3D printing, was investigated. The effects of extrusion temperature (190 °C and 200 °C) and reprocessing steps (1–5 steps) on the rheology, morphology, thermal and electrochemical properties of the conductive PLA 3D-printing filament were evaluated. The results showed deterioration of the thermal stability and material strength, as well as the influence of reprocessing on the melting point, which increases after initial melting. The electronic conduction mechanism of the composite depends on the percolation paths and it is also affected by the multiple processing. The reversibility of the [Fe(CN)6]3−/4− redox process diminishes with a higher degradation level of the conductive PLA. Importantly, the material fluidity was too high after the multiple reprocessing, which should be considered and suitably corrected during CB–PLA application as a 3D-printed electrode material.

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Section: Resultsmentioning

confidence: 99%

Multiple Reprocessing of Conductive PLA 3D-Printing Filament: Rheology, Morphology, Thermal and Electrochemical Properties Assessment

et al. 2023

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Carbon Black

Niedermeier,

Chavez,

Westenberg

et al. 2024

Encyclopedia of Polymer Science and Technology

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Carbon black is a high‐tech raw material, with clearly defined properties, widely used in different fields of applications, as an excellent black pigment, reinforcing particle in polymers, UV‐protection agent as well as conductive material in batteries. Due to its excellent pigmentation properties, especially its light stability and universal insolubility, carbon black has been used as a black pigment since early times. Today you can find it in car coatings, black dashboards, and inks. Carbon black is also used as reinforcing particle to modify the mechanical and electrical properties of elastomers and plastics. Its largest application is in tires to improve durability, abrasion resistance, and traction. The individual morphology parameters of the carbon black are tailored for each application. These parameters as well as the microstructure are discussed after the introduction in the second section. The following section deals with the methods to characterize the morphology and to carefully control the formation process. The following two sections focus on the formation and various production processes. Section 6 is devoted to the applications of carbon blacks in plastics and elastomers as a pigment as well as a reinforcing particle. The subject of achieving optimal quality dispersion and its importance to end‐use performance is also addressed. Finally, the topics of sustainability and product safety are outlined.

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Polyarylene ether nitrile/graphene oxide dielectric nanocomposite plasticized by silicone powder

Luo

Tong

Zhu

et al. 2022

Journal of Physics and Chemistry of Solids

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Electrical conductivity and rheological properties of carbon black based conductive polymer composites prior to and after annealing

Cited by 4 publications

References 43 publications

Multiple Reprocessing of Conductive PLA 3D-Printing Filament: Rheology, Morphology, Thermal and Electrochemical Properties Assessment

Multiple Reprocessing of Conductive PLA 3D-Printing Filament: Rheology, Morphology, Thermal and Electrochemical Properties Assessment

Carbon Black

Polyarylene ether nitrile/graphene oxide dielectric nanocomposite plasticized by silicone powder

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