Recyclable thermally conductive poly(butylene adipate‐co‐terephthalate) composites prepared via forced infiltration

Li, Chenglin; Han, Yi; Du, Qingyuan; Wu, Dezhen; Sun, Jingyao; Wang, Zhao; Zhang, Liqun

doi:10.1002/sus2.128

Cited by 17 publications

(1 citation statement)

References 60 publications

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“…Considering the construction of supramolecular networks, it was anticipated that SMFs would display emerging features that are rarely processed by traditional foams. In particular, conventional plastic foams cannot be recycled or reprocessed in mild condition, which usually result in serious white pollution 39 , 40 . Nevertheless, taking advantage of the water sensitivity of supramolecular networks, the metallic foams can be easily aqueous-reprocessed into high-value fibers, which is shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Supramolecular metallic foams with ultrahigh specific strength and sustainable recyclability

Yang,

Huang,

Qiu

et al. 2024

Nat Commun

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Porous materials with ultrahigh specific strength are highly desirable for aerospace, automotive and construction applications. However, because of the harsh processing of metal foams and intrinsic low strength of polymer foams, both are difficult to meet the demand for scalable development of structural foams. Herein, we present a supramolecular metallic foam (SMF) enabled by core-shell nanostructured liquid metals connected with high-density metal-ligand coordination and hydrogen bonding interactions, which maintain fluid to avoid stress concentration during foam processing at subzero temperatures. The resulted SMFs exhibit ultrahigh specific strength of 489.68 kN m kg−1 (about 5 times and 56 times higher than aluminum foams and polyurethane foams) and specific modulus of 281.23 kN m kg−1 to withstand the repeated loading of a car, overturning the previous understanding of the difficulty to achieve ultrahigh mechanical properties in traditional polymeric or organic foams. More importantly, end-of-life SMFs can be reprocessed into value-added products (e.g., fibers and films) by facile water reprocessing due to the high-density interfacial supramolecular bonding. We envisage this work will not only pave the way for porous structural materials design but also show the sustainable solution to plastic environmental risks.

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Section: Resultsmentioning

confidence: 99%

Supramolecular metallic foams with ultrahigh specific strength and sustainable recyclability

Yang,

Huang,

Qiu

et al. 2024

Nat Commun

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Enhancing Thermal Conductivity, Electrical Insulation, and Mechanical Strength of Polydimethylsiloxane Composites with Sandwich Structure

An,

Li,

Liu

et al. 2023

Adv Eng Mater

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In this article, boron nitride (BN)/carbon nanotube (CNT)/boron nitride (BN) (BCB) film of sandwich structure is prepared by vacuum‐assisted filtration. Compared with the thermal conductivity (λ) of BNs–cellulose nanocrystals (CNCs) (BC) film, the λ of sandwich structured BCB films with the same thickness (The preparation process consists of one layer of BC and one layer of CNTs–CNCs (CC) until the completion of three layers of filtration) has been significantly improved. Then, the polydimethylsiloxane (PDMS) matrix is infiltrated into the BCB films by the ultrasonic‐assisted forced infiltration method. Prepared BN/CNT/BN/PDMS (BCBP) composites with sandwich structure have excellent λ and mechanical performance. When the weight ratio of BNs to CNCs is 20:1, the λ of BCBP20:1 attains 5.253 W (m K)−1, compared with other thermally conductive composites with the same thickness (0.1 mm), it has an obvious increase. Besides, the dielectric properties and mechanical flexibility of BCBP are also systematically analyzed. This sandwich structure is prepared in such a method that the BCBP will not cause short circuits in electronic devices under high temperatures while having high λ.

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Multifunctional Ultrathin Recycled PET‐Based Membrane for Electromagnetic Interference Shielding, Antibacterial and Thermal Management

Jiang,

Piao,

Park

et al. 2024

Adv Materials Inter

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With the advent of 5G and the Internet of Things (IoT), there is a high demand for lightweight and flexible electromagnetic interference (EMI) shielding membranes with multifunctional capabilities. However, the rapid advancement of technology has led to environmental deterioration, emphasizing the significance of eco‐friendly and sustainable materials for EMI shielding. In this study, a novel environment‐friendly EMI shielding membrane with electric thermotherapy function and antibacterial properties is developed. The membrane substrate utilizes recycled polyethylene terephthalate (rPET) and is sequentially coated with synthesized FeCo@C nanoparticles (NPs) and silver nanowires (Ag NWs). The membrane is then dip‐coated with PDMS to modify the surface superhydrophobicity. Experimental results affirm that the developed environment‐friendly EMI shielding membrane possesses exceptional shielding efficiency (68 dB) and can be effectively utilized for safe and low‐voltage thermotherapy (137 °C by 2 V) while exhibiting antibacterial properties.

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Recyclable thermally conductive poly(butylene adipate‐co‐terephthalate) composites prepared via forced infiltration

Cited by 17 publications

References 60 publications

Supramolecular metallic foams with ultrahigh specific strength and sustainable recyclability

Supramolecular metallic foams with ultrahigh specific strength and sustainable recyclability

Enhancing Thermal Conductivity, Electrical Insulation, and Mechanical Strength of Polydimethylsiloxane Composites with Sandwich Structure

Multifunctional Ultrathin Recycled PET‐Based Membrane for Electromagnetic Interference Shielding, Antibacterial and Thermal Management

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