Soft and thermally conductive gels by introducing free-movable polymer chains into network

Wang, Weixuan; Zhou, Wei; Shi, Hengyi; He, Dongyi; Pang, Yunsong; Zeng, Xiaoliang; Li, Chuanchang

doi:10.1016/j.polymer.2022.125642

Cited by 6 publications

(4 citation statements)

References 37 publications

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“…The compact and flexible PI/BN composite film has a thermal conductivity of 2.3 W m −1 K −1 , which is 18 times higher than that of the original polyimide. Wang et al 143 proposed a strategy to introduce free‐moving polymer chains. The schematic diagram of the molecular and structural design of the thermal gel is shown in Figure 23.…”

Section: Composition Of Thermal Conducting Polymermentioning

confidence: 99%

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A review: From the whole process of making thermal conductive polymer, the effective method of improving thermal conductivity

Wu,

Zhang,

Yan

et al. 2024

Journal of Polymer Science

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With the development of high power‐density electronic devices on smaller scales and emerging new energy vehicles, high thermal conductive materials have attracted more attention for better thermal management to adapt to various applications. By combining both the advantages of polymer materials and thermally conductive fillers, thermal conductive polymer composite materials are widely used in packaging and the protection of electronic devices for their mechanical robustness, high thermal conductivity, excellent insulation properties, heat resistance, and chemical resistance. In this review, first, the basic theory of heat conduction of polymer composites is discussed. Second, according to the classification of the composition of the thermal conductive polymer, the filled thermal conductive material is emphatically introduced. In this paper, the construction process of a thermal conductive network of polymer and composites is discussed from the perspective of processing. The simple construction of a thermal conductive network includes core‐shell structure, external force orientation, electrostatic spinning, electrostatic spraying, induced orientation, and vacuum‐assisted filtration. The three‐dimensional thermal conductivity network can be constructed using self‐assembly and template methods. From the above processing methods, this paper analyzes how to effectively improve thermal conductivity and achieve the goal of high thermal conductivity and excellent mechanical properties under low filling. After that, the contribution of filler and polymer modification to thermal conductivity is explained in detail. Finally, the future research direction of functionalization is prospected.

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Section: Composition Of Thermal Conducting Polymermentioning

confidence: 99%

Section: Composition Of Thermal Conducting Polymermentioning

confidence: 99%

A review: From the whole process of making thermal conductive polymer, the effective method of improving thermal conductivity

Wu,

Zhang,

Yan

et al. 2024

Journal of Polymer Science

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“…Conductive polymer composites offer lightweight and cost-effective alternatives to traditional materials, and their compatibility with various fabrication techniques makes them versatile for different processes and substrates [ 58 , 59 , 60 , 61 , 62 , 63 ]. These properties render conductive polymer nanofibers and composites suitable for a wide range of TENG applications, including energy harvesting, sensing, and actuation.…”

Section: Cpng In Biochemical Sensingmentioning

confidence: 99%

From Biochemical Sensor to Wearable Device: The Key Role of the Conductive Polymer in the Triboelectric Nanogenerator

Zhao

Yin

et al. 2023

Biosensors

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Triboelectric nanogenerators (TENGs) have revolutionized energy harvesting and active sensing, holding tremendous potential in personalized healthcare, sustainable diagnoses, and green energy applications. In these scenarios, conductive polymers play a vital role in enhancing the performance of both TENG and TENG-based biosensors, enabling the development of flexible, wearable, and highly sensitive diagnostic devices. This review summarizes the impact of conductive polymers on TENG-based sensors, focusing on their contributions to triboelectric properties, sensitivity, detection limits, and wearability. We discuss various strategies for incorporating conductive polymers into TENG-based biosensors, promoting the creation of innovative and customizable devices tailored for specific healthcare applications. Additionally, we consider the potential of integrating TENG-based sensors with energy storage devices, signal conditioning circuits, and wireless communication modules, ultimately leading to the development of advanced, self-powered diagnostic systems. Finally, we outline the challenges and future directions in developing TENGs that integrate conducting polymers for personalized healthcare, emphasizing the need to improve biocompatibility, stability, and device integration for practical applications.

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“…[14] Currently, a series of methods have been proposed to improve the interfacial compatibility of composite elastomers, [15] including designing a tri-branching molecular structure to construct the elastomer, introducing dangling chains into the elastomer polymer network to decrease crosslink density, [16] and adding free small molecule chains into the network of the elastomer to reduce the modulus. [17] Another approach involves exploiting the significant change in the modulus of phase change materials (PCMs) during the phase transition. [18][19][20] For instance, a polymer material produced by blending PEG with PAA network can be with a 1 × 10 5 -fold change in modulus during the phase change.…”

Section: Introductionmentioning

confidence: 99%

Grafted Alkene Chains: Triggers for Defeating Contact Thermal Resistance in Composite Elastomers

Yang,

Pang,

et al. 2023

Small

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The pursuit of enhancing the heat transfer performance of composite elastomers as the thermal interface materials (TIMs) is a compelling and timely endeavor, given the formidable challenges posed by interfacial thermal transport in the domains of energy science, electronic technology, etc. Despite the efficacy of phase change materials (PCMs) in enhancing composite elastomers’ interfacial compatibility, thereby reducing contact thermal resistance for heat transfer improvement, their leakage post‐transition has impeded the widespread adoption of this approach. Herein, a strategy is proposed for developing a solid‐solid phase change composite elastomer by grafting alkene chains onto the crosslink network to eliminate the possibility of leakage. A series characterization suggest that the resulting material possesses a self‐adjusting interfacial compatibility feature to help reduce contact thermal resistance for heat transfer facilitating. The investigations on adhesion strength and surface energy reveal that the presence of amorphous grafted alkane chains at the interface facilitates easier absorption onto the contacting solid surface, enhancing intermolecular interactions at the interface to promote across‐boundary heat transfer. By integrating these findings with the thermal performance evaluation of composite elastomers using a real test vehicle, valuable insights are gained for the design of composite elastomers, establishing their suitability as TIMs in relevant fields.

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Soft and thermally conductive gels by introducing free-movable polymer chains into network

Cited by 6 publications

References 37 publications

A review: From the whole process of making thermal conductive polymer, the effective method of improving thermal conductivity

A review: From the whole process of making thermal conductive polymer, the effective method of improving thermal conductivity

From Biochemical Sensor to Wearable Device: The Key Role of the Conductive Polymer in the Triboelectric Nanogenerator

Grafted Alkene Chains: Triggers for Defeating Contact Thermal Resistance in Composite Elastomers

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