Magnetically aligned CNT/magnetite heterogeneous composite membranes for electromagnetic wave shielding and heat dissipation

He, Wen; Chen, Gang; Li, Chao; Chen, Xiaohong; Chen, Yaowei; Xiong, Mei; Niu, Xinsheng; Zhu, Ming; Li, Xiaoyan

doi:10.1016/j.materresbull.2022.111748

Cited by 22 publications

(3 citation statements)

References 46 publications

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“…Compared with electric actuation, magnetic field actuation has the advantages of high controllability, safety, noncontact characteristics, and transient response, especially in establishing the orientation order of anisotropic components or generating positional order inside the assembly. [99] Our group [100] combined Fe 3 O 4 magnetic nanorods with CNTs and used magnetic field induction to prepare a heterogenous surface with vertically aligned CNTs on the upper surface and tiled CNTs on the lower surface. The CNTs/Fe 3 O 4 composite film showed good electromagnetic wave absorption properties.…”

Section: Magnetic Stimulusmentioning

confidence: 99%

A Review on Fabrication and Application of Tunable Hybrid Micro–Nano Array Surfaces

Jian

et al. 2023

Adv Materials Inter

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The wettability and adhesion of biological surfaces often depend on their periodically arranged hybrid micro–nano array structures. Various fabrication processes are designed to mimic biomimetic micro–nano array surfaces. This review summarizes the types of micro–nano array structures and analyzes fabrication methods based on top‐down and bottom‐up construction, including templating, etching, self‐assembly, and electrospinning/electrospraying. This review focuses on the shape reconfiguration of surface micro–nano array structures under physical stimuli, as well as the changes in material surface properties during the reconfiguration process. In addition, the applications of biomimetic micro–nano array composite surfaces in the fields of droplet transport, adhesion properties, sensors, and soft robotics are also discussed, and the current challenges and prospects in this field are identified.

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Section: Magnetic Stimulusmentioning

confidence: 99%

A Review on Fabrication and Application of Tunable Hybrid Micro–Nano Array Surfaces

Jian

et al. 2023

Adv Materials Inter

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“…Silver nanowires (AgNWs) with a diameter of about 30–200 nm and a high aspect ratio are ideal candidates for stretchable conductive materials. , Compared with carbon nanotubes (CNTs), , conductive polymers, and metal nanoparticles, AgNWs have the highest electrical conductivity, high thermal conductivity, and unique antibacterial properties. − However, AgNWs with a high modulus are not compatible with soft polymers, and they tend to slip at the polymer interface under rapid stretching. At present, the composites of AgNWs and flexible polymers mainly focus on bendability, − while the large-strain cyclic stability is rarely studied.…”

Section: Introductionmentioning

confidence: 99%

Silver Nanowires Deposited on Triblock Copolymer Microfibers for Stretchable Conductive Fabrics

Xiong

Wang

Niu

et al. 2022

ACS Appl. Nano Mater.

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Soft electronics have attracted much attention due to their conformal flexibility with skin tissue. In this work, soft and stretchable conductive fabrics were prepared based on the interface design of a poly(styrene-ethylene/butylene-styrene) (SEBS) thermoplastic elastomer and silver nanowires (AgNWs). AgNWs with a diameter of 200 nm, high aspect ratio, and high conductivity were prepared by a polyol reduction method. The amphiphilic triblock copolymer poly(ethylene oxide)–poly(propylene oxide)–poly(ethylene oxide) (PEO-PPO-PEO) was used to improve the wettability of SEBS electrospun fibers. According to the solubility parameters, hot ethanol was chosen to post-treat the electrospun fabrics to induce the migration of the hydrophilic PEO blocks to the outer layer of the fibers so that dopamine was uniformly polymerized on the surface of the hydrophilic SEBS. AgNWs can uniformly and flexibly bind to the surface of SEBS@PDA fibers. Our study provides a simple and controllable approach to realizing stable large-strain soft stretchable electronics and exhibits great potential in human skin extension applications.

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“…[12][13][14] Among them, CNTs are considered a potential electromagnetic wave absorbing material due to their unique hollow structure, good electrical conductivity, high-temperature oxidation resistance, and strong broadband absorption properties. 15,16 Epoxy resin is a widely used thermosetting matrix for structural composites. Due to its excellent mechanical properties, ease of processing, and good corrosion resistance, electromagnetic shielding composites have been prepared by compounding CNTs with epoxy resins.…”

Section: Introductionmentioning

confidence: 99%

Microwave absorbing properties of polyaniline coated Buckypaper reinforced epoxy resin composites

Xia

Wang

et al. 2022

J of Applied Polymer Sci

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With the development of science and technology and electronic industry, electromagnetic wave pollution has become the fifth largest pollution in the world today, so it is very important to develop a material with good wave absorbing properties. In this study, polyaniline was loaded onto the surface of carbon nanotubes (CNTs) bundles in Buckypaper by electropolymerization, and epoxy resin was used as the matrix to prepare a polyaniline (PANI)/Buckypaper/EP composite absorber with integrated structure and function. The research shows that the CNTs are prepared into Buckypaper with a three‐dimensional porous structure by vacuum filtration. This three‐dimensional porous structure ensures that CNTs can be added at a high content and uniformly dispersed in epoxy resin. PANI adjusts the impedance matching of Buckypaper and adds more loss mechanisms. Under the optimal matching thickness of 1.5 mm, the optimal reflection loss reaches −29.31 dB, and the absorption bandwidth is 3.12 GHz. At the same time, the interaction between the π–π noncovalent bond of PANI and the delocalized π electrons on the surface of CNTs improves the mechanical strength of Buckypaper. The tensile strength reached 42.17 MPa, an increase of 92.82% compared with pure BP/EP. The research in this article is expected to provide a feasible idea for the preparation of structure–function integrated materials.

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Magnetically aligned CNT/magnetite heterogeneous composite membranes for electromagnetic wave shielding and heat dissipation

Cited by 22 publications

References 46 publications

A Review on Fabrication and Application of Tunable Hybrid Micro–Nano Array Surfaces

A Review on Fabrication and Application of Tunable Hybrid Micro–Nano Array Surfaces

Silver Nanowires Deposited on Triblock Copolymer Microfibers for Stretchable Conductive Fabrics

Microwave absorbing properties of polyaniline coated Buckypaper reinforced epoxy resin composites

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