Composites Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 111129 - 111129
Published: Feb. 1, 2025
Language: Английский
Polymer, Journal Year: 2025, Volume and Issue: unknown, P. 128189 - 128189
Published: Feb. 1, 2025
Language: Английский
Citations
2
Advanced Science, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 22, 2024
Abstract The low thermal conductivity, poor toughness, and non‐reprocessability of thermosetting epoxy resins severely restrict their applications sustainable development in flexible electronics. Herein, liquid crystalline (LCE) dynamic ester disulfide bonds are introduced into the cured network bisphenol A resin (E‐51) to construct highly thermally conductive (LCER) vitrimers. LCER vitrimers demonstrate adjustable mechanical properties by varying ratio LCE E‐51, allowing it transition from soft strong. Typically, a 75 mol% 25 E‐51 results an in‐plane conductivity ( λ ) 1.27 W m −1 K , over double that pure vitrimer (0.61 ). tensile strength toughness increase 2.88 folds 14.1 MPa 2.45 20.1 MJ −3 respectively. Besides, phase covalent enable triple shape memory three‐dimensional reconstruction. After four reprocessing cycles, remain at 94% 72%, Integrating carbon nanotubes (CNTs) imparts photo‐thermal effect enables “on” “off” switch under near‐infrared light vitrimer. Furthermore, CNTs/LCER displays light‐induced actuation, self‐repairing, self‐welding besides closed‐loop recycling rapid degradation performance.
Language: Английский
Citations
13
Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)
Published: Oct. 11, 2024
Abstract
The
design
and
fabrication
of
high
toughness
electromagnetic
interference
(EMI)
shielding
composite
films
with
diminished
reflection
are
an
imperative
task
to
solve
pollution
problem.
Ternary
MXene/ANF
(aramid
nanofibers)–MoS
2
nacre-like
layered
structure
here
fabricated
after
the
introduction
MoS
into
binary
system.
fulfills
impressive
“kill
three
birds
one
stone”
improvement
effect:
lubrication
toughening
mechanical
performance,
reduction
in
secondary
wave,
performance
photothermal
conversion.
After
(mass
ratio
50:50),
strain
failure
tensile
strength
increase
from
22.1
$$\pm$$
Language: Английский
Citations
12
Polymer Composites, Journal Year: 2024, Volume and Issue: 45(8), P. 6788 - 6803
Published: March 11, 2024
Abstract Carbon fibers/poly(ether‐ether‐ketone) (CF/PEEK) composites have the advantages of excellent impact resistance, good moisture and heat ultra‐short molding cycle recyclable secondary processing. Therefore, investigation on CF/PEEK is an important development direction low‐cost high‐performance polymer‐based composites. However, due to strong surface inertness CF poor interface compatibility between PEEK matrix, mechanical properties are low. Moreover, matrix has high melting point large viscosity, making processing very difficult. In this paper, factors affecting interfacial composites, functionalization modification methods CF, design & synthesis compatibilizer reviewed. The research progress related academic achievements in strengthening additive manufacturing technology emphatically discussed. Finally, trends application prospects summarized. Highlights composite key material for industry infrastructure. interaction CF.
Language: Английский
Citations
11
Composites Part B Engineering, Journal Year: 2024, Volume and Issue: 283, P. 111650 - 111650
Published: June 25, 2024
Language: Английский
Citations
10
npj Flexible Electronics, Journal Year: 2024, Volume and Issue: 8(1)
Published: May 31, 2024
Abstract Efficient thermal management has become one of the most critical issues electronics because high heat flux generated from highly integrated, miniaturized, and increased power. Here we report flexible composites with aligned overlapping interconnected boron nitride nanosheets (BNNSs) assembled in wrinkle structures. Besides in-plane conductivity more than 26.58 W m −1 K , such structure rendered enhanced through-plane conduction along increasing pre-stain. As interface materials (TIMs) both rigid devices, revealed an outstanding cooling capability outperforming some commercial TIMs. During a record-long bending process 3000 cycles, maximum temperature fluctuation device 100%-prestrained composite was only within 0.9 °C, less one-third that pad. Moreover, superior impermeability for seals. Our results illustrate could be ideal candidate emerging electronics.
Language: Английский
Citations
9
SusMat, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 10, 2024
Abstract Polymer nanofibers exhibit unique nanoscale effects, high specific strength and modulus, exceptional design flexibility, large aspect ratios, substantial surface areas. These characteristics have drawn significant attention in emerging fields such as flexible electronics, 5G communications, new energy vehicles. Notably, poly( p‐ phenylene benzobisoxazole) (PNFs) present the best thermal stability flame retardancy among all known polymer nanofibers. Furthermore, due to highly oriented molecular chains orderly structure, PNFs demonstrate superior conductivity compared conventional nanofibers, thus garnering favor from researchers. This paper summarizes latest research progress of PNFs, detailing three preparation methods (electrospinning, mechanical dissociation, protonation) along with their respective advantages disadvantages. It also elucidates current development status applications retardancy, conduction, electrical insulation, electromagnetic shielding, battery separators, discusses challenges prospects faced by PNFs. aims provide theoretical guidance for application enhancing potential advanced applications, further expanding scope.
Language: Английский
Citations
9
Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 105761 - 105761
Published: Jan. 1, 2025
Language: Английский
Citations
1
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 15, 2025
Abstract It is crucial to develop electromagnetic interference (EMI) shielding materials with high efficiency (SE) and reduced reflection mitigate the secondary pollution caused by waves (EMWs). Herein, a novel multilayer assembly strategy inspired structure of “Turkish dessert—Baklava” proposed introduce magnetic hollow Fe 3 O 4 nanospheres (HFO) conductive MXene nanosheets into bacterial cellulose (BC) network. Through layer‐by‐layer vacuum filtration approach, composite BC/MXene/HFO film controllable electric‐magnetic dual‐gradient achieved. The construction dual gradients alleviates impedance mismatch at air‐film interface, resulting in reflectivity toward EMWs, while unique HFO facilitates “absorption–reflection–reabsorption” process EMWs. Consequently, as‐prepared (0.35 mm thickness) exhibits an extraordinary EMI SE 67.6 dB as low 5.1 dB. Furthermore, it also demonstrates exceptional mechanical properties, efficient thermal management, Joule heating capabilities, well remarkable passive active infrared camouflage performances. This study offers innovative approach achieve less more absorption expands application scope precision electronics, aerospace, military equipment fields.
Language: Английский
Citations
1
Polymer Degradation and Stability, Journal Year: 2025, Volume and Issue: unknown, P. 111206 - 111206
Published: Jan. 1, 2025
Language: Английский
Citations
1