A highly sensitive polydopamine@hybrid carbon nanofillers based nanocomposite sensor for acquiring high-frequency ultrasonic waves

Weng, Zengsheng; Guan, Ruiqi; Zou, Fangxin; Zhou, Pengyu; Liao, Yaozhong; Su, Zhongqing; Huang, Lin; Liu, Fa‐Qian

doi:10.1016/j.carbon.2020.08.030

Cited by 9 publications

(2 citation statements)

References 48 publications

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“…Hence, the methods of filler surface modification can be divided into chemical modification and physical modification. Chemical surface modification is the most commonly method, and it is generally used to modify the filler surface by grafting polymer chain, block polymerization, encapsulation polymerization to filler (“grafting to”) [ 59 ]; group decoration or coating organic polymer on filler surface (organic surface modification) [ 60 ]; inorganic particles mainly use van der Waals force, hydrogen bonding, chemical bonding, ionic bonding and other methods to strengthen the two-phase interaction (inorganic functionalization), for which popular methods used include: deposition method, outer layer modification, mechanochemical modification, surface chemical modification and high-energy surface modification [ 61 ]. Figure 2 D shows three typical methods associated with filler surface modification [ 62 ].…”

Section: Toolboxmentioning

confidence: 99%

“Toolbox” for the Processing of Functional Polymer Composites

et al. 2021

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The processing methods of functional polymer composites (FPCs) are systematically summarized in “Toolbox”. The relationship of processing method-structure-property is discussed and the selection and combination of tools in processing among different FPCs are analyzed. A promising prospect is provided regarding the design principle for high performance FPCs for further investigation. Functional polymer composites (FPCs) have attracted increasing attention in recent decades due to their great potential in delivering a wide range of functionalities. These functionalities are largely determined by functional fillers and their network morphology in polymer matrix. In recent years, a large number of studies on morphology control and interfacial modification have been reported, where numerous preparation methods and exciting performance of FPCs have been reported. Despite the fact that these FPCs have many similarities because they are all consisting of functional inorganic fillers and polymer matrices, review on the overall progress of FPCs is still missing, and especially the overall processing strategy for these composites is urgently needed. Herein, a “Toolbox” for the processing of FPCs is proposed to summarize and analyze the overall processing strategies and corresponding morphology evolution for FPCs. From this perspective, the morphological control methods already utilized for various FPCs are systematically reviewed, so that guidelines or even predictions on the processing strategies of various FPCs as well as multi-functional polymer composites could be given. This review should be able to provide interesting insights for the field of FPCs and boost future intelligent design of various FPCs. Supplementary Information The online version contains supplementary material available at 10.1007/s40820-021-00774-5.

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Section: Toolboxmentioning

confidence: 99%

“Toolbox” for the Processing of Functional Polymer Composites

et al. 2021

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“…Conductive polymer composites filled with micro/nanoconductive fillers have sparked wide interest in various applications, such as smart wearables, electronic packaging, and condition monitoring of structures. − Conductive fillers with a high aspect ratio (AR) that enable a high electrical conductivity are desirable for conductive polymer composites, for instance, carbon nanotubes (CNTs), carbon nanofibers (CNFs), and short carbon fibers (SCFs). SCF conductive polymer composites (SCFCPCs) are highlighted by their high recyclability and better processability, which are especially important for mass production. − SCFCPCs have been extensively studied as multifunctional materials in electromagnetic shielding, , self-heating, , and structural health monitoring, − where electrical properties play a critical role.…”

Section: Introductionmentioning

confidence: 99%

Simulation Studies Underlying the Influence of Filler Orientation on the Electrical Properties of Short Carbon Fiber Conductive Polymer Composites: Implications for Electrical Conductivity Regulation of Micro/Nanocomposites

Yao

Liu

Jiang

et al. 2023

ACS Appl. Nano Mater.

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The electrical properties of conductive polymer composites are critical in applications, and the electrical conductivity regulation through micro/nanofiller orientation is attracting broad attention. For short carbon fiber (SCF) conductive polymer composites (SCFCPCs), the electrical properties and SCF conductive network topology of SCFCPCs with different SCF orientations are analyzed with a numerical model. The results demonstrate that an increase in the degree of SCF orientation from 0 (SCFs perpendicular to conductivity direction) to 1 (SCFs parallel to conductivity direction) first leads to a corresponding increase and then a decrease in the electrical conductivity of SCFCPCs. The highest electrical conductivity is achieved while the degree of SCF orientation is increased to approximately 0.6, which is a higher SCF orientation state compared to random orientation. Moreover, it is identified that more SCFs in conductive networks do not necessarily guarantee a higher electrical conductivity. The electrical conductivity of the SCF conductive networks also depends on the degree of SCF orientation. Evidently, the less-oriented SCFs tend to build in-layer conductive networks, while the highly oriented SCFs tend to build interlayer ones, which apply a greater contribution to the electrical conductivity. Overall, the results of this study reveal why the highest electrical conductivity occurs at a higher SCF orientation rather than a random SCF orientation. The clarified influence and mechanism provide indications for the electrical conductivity regulation of micro/nanocomposites by adjusting the conductive filler orientation.

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Design of MWCNTs and rGO co‐decorated elastic core‐spun yarn towards multifunctional flexible strain sensor with low detection limit and wide working range

Zhang

Feng

Lian

et al. 2023

J of Applied Polymer Sci

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In order to reduce the detection limit and improve the working range of flexible strain sensor, in this article, we reported a multi‐walled carbon nanotubes (MWCNTs) and reduced graphene oxide (rGO) co‐decorated multifunctional core spurn yarn flexible strain sensor (CGY FSS). It was found that the well lapping between MWCNT and rGO endows sensor with high working range (> 300%), while the helical structure of core‐spun yarn makes it sensitive to very tiny deformation (0.1%). To improve its dynamic durability, polydopamine (PDA) was used to improve the interface bonding force between yarn and conductive materials, which ensures the sensor conduct stable electrical signals during 10,000 stretching cycles test at 10% strain. These features made it suitable for human motion detection and structural health monitoring. Moreover, due to the abundant carboxyl groups on the carbon material surface and the employment of polymer‐based yarn, CGY FSS also showed good responsiveness to water vapor and acetone gas. It can be conceived that this as prepared strain sensor shows promising potential in smart device application with multiple response mechanism.

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A highly sensitive polydopamine@hybrid carbon nanofillers based nanocomposite sensor for acquiring high-frequency ultrasonic waves

Cited by 9 publications

References 48 publications

“Toolbox” for the Processing of Functional Polymer Composites

“Toolbox” for the Processing of Functional Polymer Composites

Simulation Studies Underlying the Influence of Filler Orientation on the Electrical Properties of Short Carbon Fiber Conductive Polymer Composites: Implications for Electrical Conductivity Regulation of Micro/Nanocomposites

Design of MWCNTs and rGO co‐decorated elastic core‐spun yarn towards multifunctional flexible strain sensor with low detection limit and wide working range

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