Fabrication of Thermally Conductive and Wear-Resistant UHMWPE-Based Composites for Nuclear Shielding Applications DOI

Xiaopei Sun,

Xiaoqiang Pan,

Ying Wu

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(25), P. 11030 - 11043

Published: June 11, 2024

Polymer-based shielding materials have garnered attention due to their lightweightness, ease of fabrication, and tailorable performance. However, they tend creep deform when the are exposed external heat, which may cause a catastrophic disaster mechanical failure. In this study, hybrid loading graphite (Gt) boron nitride (BN) fillers was used improve thermal dissipation, neutron shielding, tribological properties ultrahigh molecular weight polyethylene (UHMWPE), demonstrate potential applications in nuclear sectors among others. The results revealed that conductivity UHMWPE/BN 30 wt %/Gt 40 % composite (i.e., BN30Gt40) reached as high 8.43 W/mK, 295% higher than %, 201% UHMWPE/Gt 1700% pure UHMWPE, respectively. Simulation analysis using Geant4 suggested UHMWPE/BN/Gt composites exhibited excellent neutron-shielding performance presence abundant hydrogen elements. addition, demonstrated friction wear combined effects constructing transfer film on surface pair timely removal frictional heat generated at sliding interface.

Language: Английский

Highly Thermally Conductive Aramid Nanofiber Composite Films with Synchronous Visible/Infrared Camouflages and Information Encryption DOI

Yixin Han,

Kunpeng Ruan,

Xiaoyu He

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(17)

Published: Feb. 9, 2024

The development of highly thermally conductive composites that combine visible light/infrared camouflage and information encryption has been endowed with great significance in facilitating the application 5G communication technology military fields. This work uses aramid nanofibers (ANF) as matrix, hetero-structured silver nanowires@boron nitride nanosheets (AgNWs@BNNS) prepared by situ growth fillers, which are combined to fabricate sandwich structured electrically insulating (BNNS/ANF)-(AgNWs@BNNS)-(BNNS/ANF) (denoted BAB) composite films "filtration self-assembly, air spraying, hot-pressing" method. When mass ratio AgNWs@BNNS BNNS is 1 : total fraction 50 wt %, BAB film maximum in-plane thermal conductivity coefficient (λ

Language: Английский

Citations

118
Elaborate construction of potent antioxidant properties in PBP-Ce(Ш) nanosheets via a one-pot approach for seamless integration of anti-corrosion, wear-resistance, and flame-retardancy DOI

Xiaoling He,

Qihan Weng,

Ruiqin Guo

et al.

Journal of Material Science and Technology, Journal Year: 2024, Volume and Issue: 201, P. 197 - 209

Published: April 4, 2024

Language: Английский

Citations

50
Thermal degradation and fire retardant behaviour of natural fibre reinforced polymeric composites- A comprehensive review DOI Creative Commons
Vinayak S. Hiremath, D. Mallikarjuna Reddy, Rajasekhara Reddy Mutra

et al.

Journal of Materials Research and Technology, Journal Year: 2024, Volume and Issue: 30, P. 4053 - 4063

Published: April 17, 2024

In this comprehensive review, we dive into the potential of natural fibre composites, tracing their historical use spanning three millennia and recent incorporation polymer matrices. Various fibres, including flax, hemp, jute, more, have been explored as reinforcements due to renewable nature environmental appeal. Moreover, these fibers are gaining traction in industries such automotive packaging. Leveraging abundant agricultural waste as, wheat husk, rice straw, hemp commercially viable fibre-reinforced composites. A thorough summary is given article diverse array fibers, current research status, encompassing properties, processing techniques, filler materials on structural factors, thermogravimetric analysis, dynamic mechanical performance under thermal loading, fire retardant behaviour, cone calorimetric analysis various other applications, all while referencing latest developments field, exploring a sustainable future with Furthermore, difficulties associated vulnerability humidity, retardancy compliance matrices, examined. This paper summarizes complex field composites covers several stability-related appearance.

Language: Английский

Citations

26
Thermally Conductive and UV-EMI Shielding Electronic Textiles for Unrestricted and Multifaceted Health Monitoring DOI Creative Commons

Yidong Peng,

Jiancheng Dong,

Jiayan Long

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: May 21, 2024

Skin-attachable electronics have garnered considerable research attention in health monitoring and artificial intelligence domains, whereas susceptibility to electromagnetic interference (EMI), heat accumulation issues, ultraviolet (UV)-induced aging problems pose significant constraints on their potential applications. Here, an ultra-elastic, highly breathable, thermal-comfortable epidermal sensor with exceptional UV-EMI shielding performance remarkable thermal conductivity is developed for high-fidelity of multiple human electrophysiological signals. Via filling the elastomeric microfibers thermally conductive boron nitride nanoparticles bridging insulating fiber interfaces by plating Ag (NPs), interwoven conducting network (0.72 W m

Language: Английский

Citations

25
Highly Thermally Conductive Aramid Nanofiber Composite Films with Synchronous Visible/Infrared Camouflages and Information Encryption DOI

Yixin Han,

Kunpeng Ruan, Xiaoyu He

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(17)

Published: Feb. 9, 2024

Abstract The development of highly thermally conductive composites that combine visible light/infrared camouflage and information encryption has been endowed with great significance in facilitating the application 5G communication technology military fields. This work uses aramid nanofibers (ANF) as matrix, hetero‐structured silver nanowires@boron nitride nanosheets (AgNWs@BNNS) prepared by situ growth fillers, which are combined to fabricate sandwich structured electrically insulating (BNNS/ANF)‐(AgNWs@BNNS)‐(BNNS/ANF) (denoted BAB) composite films “filtration self‐assembly, air spraying, hot‐pressing” method. When mass ratio AgNWs@BNNS BNNS is 1 : total fraction 50 wt %, BAB film maximum in‐plane thermal conductivity coefficient ( λ ∥ 10.36 W/(m ⋅ K)), excellent electrical insulation (breakdown strength volume resistivity 41.5 kV/mm 1.21×10 15 Ω cm, respectively) mechanical properties (tensile 170.9 MPa). % could efficiently reduce equilibrium temperature central processing unit (CPU) working at full power, resulting 7.0 °C lower than CPU solely integrated ANF directly. In addition, boasts adaptive dual on cement roads jungle environments, well function fast QR code within 24 seconds.

Language: Английский

Citations

17
Designing sandwich-structured IBP nanosheets with superior antioxidant property to enhance corrosion resistance, flame retardancy, and wear resistance for polymeric coatings DOI

Qihan Weng,

Li Zhang, Xinxin Sheng

et al.

Journal of Material Science and Technology, Journal Year: 2024, Volume and Issue: 215, P. 22 - 35

Published: July 26, 2024

Language: Английский

Citations

16
Black phosphorus nanosheets for advanced polymer coatings and films: Preparation, stability and applications DOI

Qihan Weng,

Xiaolin Huang, Ying Chen

et al.

Journal of Material Science and Technology, Journal Year: 2024, Volume and Issue: 216, P. 192 - 208

Published: Aug. 22, 2024

Language: Английский

Citations

16
Aramid nanofibers at ultralow loadings: driving significant multifunctionality in epoxy composite dielectrics DOI Creative Commons

Haowen Yuan,

Zi Wang, Di Lan

et al.

Advanced Composites and Hybrid Materials, Journal Year: 2025, Volume and Issue: 8(1)

Published: Feb. 1, 2025

Language: Английский

Citations

12
Achieving synchronously high thermal conductivity and breakdown strength in PVA modulated via multiple ordered liquid crystal domains DOI

Jingyu Di‐wu,

Wenying Zhou,

Yandong Wang

et al.

FlatChem, Journal Year: 2025, Volume and Issue: unknown, P. 100813 - 100813

Published: Jan. 1, 2025

Language: Английский

Citations

10
Functionalized Aluminum Nitride for Improving Hydrolysis Resistances of Highly Thermally Conductive Polysiloxane Composites DOI Creative Commons
Mukun He, Lei Zhang, Kunpeng Ruan

et al.

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: Feb. 6, 2025

Abstract A series of divinylphenyl-acryloyl chloride copolymers (PDVB- co -PACl) is synthesized via atom transfer radical polymerization employing tert-butyl acrylate and divinylbenzene as monomers. PDVB- -PACl utilized to graft on the surface spherical aluminum nitride (AlN) prepare functionalized AlN (AlN@PDVB- -PACl). Polymethylhydrosiloxane (PMHS) then used matrix thermally conductive AlN@PDVB- -PACl/PMHS composites with fillers through blending curing. The grafting synchronously enhances hydrolysis resistance its interfacial compatibility PMHS matrix. When molecular weight 5100 g mol −1 density 0.8 wt%, containing 75 wt% exhibit optimal comprehensive performance. thermal conductivity ( λ ) composite 1.14 W m K , which by 20% 420% compared simply physically blended AlN/PMHS pure PMHS, respectively. Meanwhile, display remarkable hydrothermal aging retaining 99.1% after soaking in 90 °C deionized water for 80 h, whereas decreases sharply 93.7%.

Language: Английский

Citations

6