Electro curing of oriented bismaleimide between aligned carbon nanotubes for high mechanical and thermal performances

Qiu, Lin; Guo, Pu; Yang, Xueqin; Ouyang, Yuxin; Feng, Yanhui; Zhang, Xinxin; Zhao, Jingna; Zhang, Xiaohua; Li, Qingwen

doi:10.1016/j.carbon.2019.01.074

Cited by 58 publications

(29 citation statements)

References 47 publications

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“…a) The apparent conductivity is plotted against the sample length. The labels are: 1) Aliev et al, 2) Jakubinek et al, 3) Wang et al, 4) Behabtu et al, 5) Mayhew and Prakash, 6) Li et al, 7) Qiu et al, 8) Gspann et al, and 9) Qiu et al b) Intertube heat conductance as a function of the total “effective” number of interatomic intertube interactions, obtained in MD simulations and predicted by a mesoscopic model. c) Schematic illustration of the 3ω measurement technique for thermal conductivity.…”

Section: Structure and Fundamental Propertiesmentioning

confidence: 99%

Section: Structure and Fundamental Propertiesmentioning

confidence: 99%

“…Covalently crosslinked polymer network inside CNT fibers could also benefit the phonon propagation between CNTs. For example, Qiu et al used electro‐curing to construct crosslinked BMI networks and obtained a true conductivity of 177.3 W m −1 K −1 . Interestingly, the electro‐treatment induced a certain alignment between BMI and CNT, which was not observed by thermal curing.…”

Section: Structure and Fundamental Propertiesmentioning

confidence: 99%

“…The axial thermal conductivity of a fiber is mostly measured by using a self‐heating 3ω method . As shown in Figure c, a CNT fiber is suspended via four copper pads on a printed board as heat sink.…”

Section: Structure and Fundamental Propertiesmentioning

confidence: 99%

“…Unfortunately, for CNT fibers, all these properties are not used up to ≈10%. For example, the tensile strength for a meter‐long CNT fiber was just ≈3–5.5 GPa (there have also been short samples as strong as ≈10 GPa), the electrical conductivity for a neat CNT fiber was up to 4.6 × 10 5 –2.9 × 10 6 S m −1 , (a special case was up to 8.5 × 10 6 S m −1 just for a segment of CNT fiber), and the thermal conductivity was several hundred W m −1 K −1 even for the apparent value (with considering the contribution of thermal diffusion) …”

Section: Introductionmentioning

confidence: 99%

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Understanding the Mechanical and Conductive Properties of Carbon Nanotube Fibers for Smart Electronics

et al. 2019

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The development of fiber‐based smart electronics has provoked increasing demand for high‐performance and multifunctional fiber materials. Carbon nanotube (CNT) fibers, the 1D macroassembly of CNTs, have extensively been utilized to construct wearable electronics due to their unique integration of high porosity/surface area, desirable mechanical/physical properties, and extraordinary structural flexibility, as well as their novel corrosion/oxidation resistivity. To take full advantage of CNT fibers, it is essential to understand their mechanical and conductive properties. Herein, the recent progress regarding the intrinsic structure–property relationship of CNT fibers, as well as the strategies of enhancing their mechanical and conductive properties are briefly summarized, providing helpful guidance for scouting ideally structured CNT fibers for specific flexible electronic applications.

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Section: Structure and Fundamental Propertiesmentioning

confidence: 99%

Section: Structure and Fundamental Propertiesmentioning

confidence: 99%

Section: Structure and Fundamental Propertiesmentioning

confidence: 99%

Section: Structure and Fundamental Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Understanding the Mechanical and Conductive Properties of Carbon Nanotube Fibers for Smart Electronics

et al. 2019

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Cooperative In Situ Impregnation of PEG and Au Nanoparticles into Expanded CNT Network Toward Composite Phase Change Fibers with High Storage Capacity and Photothermal Conversion

Liao,

Li,

Zhao

et al. 2024

Adv Materials Technologies

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Phase change fibers with multifunctionalities are a promising material for thermal management applications, however, it is still challenging to simultaneously give the fiber high energy conversion and storage capacity. Here, a cooperative in situ impregnation strategy is reported, to introduce Au nanoparticles (NPs) and polyethylene glycol (PEG) together into carbon nanotube (CNT) network during the expansion process, resulting in a CNT/Au/PEG composite phase change fiber. The obtained composite fiber have the characteristics of high loading (up to 88.0–98.6%) and uniform distribution of Au NPs, and thus exhibits superior mechanical, electrical, and thermal properties. The presence of Au NPs plays more important role in not only improving the PEG crystallinity and phase change enthalpy, but also enhancing the photothermal conversion efficiency (up to 88.2%). There is also a new feature of precise regulation of the phase change temperatures, e.g., from 9.5 to 20.5 °C for the solidification temperature. More importantly, due to the strong confinement of PEG and Au NPs inside the CNT network, the composite fiber also shows excellent thermal stabilities, including the anti‐leakage behavior and cycling phase change ability.

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Preparation and characterization of a novel allyl ether naphthalene phenolic modified bismaleimide resin and its composites

Su,

Wang,

Zhu

et al. 2024

J of Applied Polymer Sci

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Allyl ether naphthol resin (ANPF) was synthesized by introducing 1,5‐dihydroxynaphthalene and 2,7‐dihydroxynaphthalene into phenolic resin and was copolymerized with 4,4′‐bismaleimidodiphenylmethane resin (BDM) to obtain allyl ether naphthol‐modified bismaleimide resins (15‐ANPF‐BDM and 27‐ANPF‐BDM). The resulting thermal stability and glass transition temperature (Tg) were explored by thermogravimetric and dynamic mechanical analyses. The char yield of 15‐ANPF‐BDM at a temperature of 800°C was 46.0%. Additionally, the Tg of 15‐ANPF‐BDM was measured as 311°C, which is an increase of 44°C compared to that of c. The mechanical properties of the ANPF‐BDM/quartz fiber (Qf) composites were also investigated. The results reveal that ANPF‐BDM/Qf composites exhibit similar mechanical strength to APF‐BDM/Qf composites at room temperature. In addition, the mechanical properties of the ANPF‐BDM/ Qf composites demonstrated significant improvement in mechanical properties retained significantly improved at 200°C, with a 68% flexural strength retention and a 96% interlaminar shear retention of 15‐ANPF‐BDM/Qf composites. Thus, ANPF‐BDM/Qf composites exhibit outstanding mechanical properties at 200°C.

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Electro curing of oriented bismaleimide between aligned carbon nanotubes for high mechanical and thermal performances

Cited by 58 publications

References 47 publications

Understanding the Mechanical and Conductive Properties of Carbon Nanotube Fibers for Smart Electronics

Understanding the Mechanical and Conductive Properties of Carbon Nanotube Fibers for Smart Electronics

Cooperative In Situ Impregnation of PEG and Au Nanoparticles into Expanded CNT Network Toward Composite Phase Change Fibers with High Storage Capacity and Photothermal Conversion

Preparation and characterization of a novel allyl ether naphthalene phenolic modified bismaleimide resin and its composites

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