Designed Composite Aerogels With Solid–Solid Phase Transition and Nanoscale Pores for Infrared Stealth DOI
Yanyan Wang, Nan‐Sim Pang, Xiaoqing Yin

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Abstract Phase change materials (PCMs) and thermal insulation have garnered significant attention in infrared stealth applications due to their excellent temperature regulation capabilities. However, traditional PCMs often face leakage issues or are unable balance porous structure retention. In this work, a composite aerogel with dual solid skeletons is designed via homogeneous mixing. The not only features the nanoporous properties but also possesses solid–solid phase transition capability without PCM leakage. Compared pure polyimide (PI) aerogels, exhibits lower conductivity its density more intricate pore structure. retains maximum enthalpy of 111 J g −1 can significantly slow surface rise under high‐temperature conditions. addition, aerogels exhibit cyclic stability long‐term durability, further demonstrating potential for complex scenarios. When used cover graphite sheet at 136 °C, radiation reduced 25.5 performance. This study provides new insights designing high‐efficiency flexible

Language: Английский

A high-hygroscopic, porous pH-colorimetric label based on κ-Carrageenan and carboxymethyl cellulose composite cryogel for monitoring pork freshness DOI

Yalu Yun,

Xiling Cheng,

Jin Xu

et al.

Food Hydrocolloids, Journal Year: 2025, Volume and Issue: unknown, P. 111077 - 111077

Published: Jan. 1, 2025

Language: Английский

Citations

1
Unveiling the thermal management and flame retardancy of Polyimide nano-crosslinked aminosilane modified MXene aerogels DOI
Varsha D. Phadtare,

Kyu-Yeon Lee,

Vinayak G. Parale

et al.

Polymer Degradation and Stability, Journal Year: 2025, Volume and Issue: unknown, P. 111212 - 111212

Published: Jan. 1, 2025

Language: Английский

Citations

0
Innovative Polyimide Modifications for Aerospace and Optoelectronic Applications: Synergistic Enhancements in Thermal, Mechanical, and Optical Properties DOI
Yuwei Chen, Yidong Liu, Yonggang Min

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

This study pioneers a molecular topology engineering strategy by incorporating twisted diamine motif into polyimide (PI) backbones, achieving an unprecedented integration of thermal stability, mechanical robustness, and optoelectronic functionality that surpasses conventional high-performance PIs. Unlike traditional PIs constrained performance trade-offs (e.g., compromised flexibility for resistance or sacrificed bulk properties functionalization), the modified PI demonstrates breakthrough balance: degradation temperature (T5%) exceeding 560 °C, glass transition (Tg) 380 tensile strength 160-180 MPa. Crucially, it exhibits green fluorescence (505-515 nm) under 365/467 nm excitation─a previously unreported optical capability in Molecular dynamics/density functional theory (MD/DFT) simulations coupled with UV-vis analyses reveal conformation induces orbital reorganization optimized stress distribution, establishing design framework multifunctional In contrast to additive-dependent modification approaches, this topology-driven enables intrinsic multifunctionality while maintaining compatibility industrial polymerization processes, overcoming scalability challenges production. The work redefines applications aerospace composites, systems, next-gen sensors extreme conditions, providing paradigm developing performance-integrated polymers through rational topological design.

Language: Английский

Citations

0
Flexible MXene-functionalized composite phase change film with dual-mode of solar-thermal conversion and infrared stealth DOI

Keyan Sun,

Fanbo Meng, Xinyu Zhang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 509, P. 161279 - 161279

Published: March 5, 2025

Language: Английский

Citations

0
Homogenous nanofiber skeleton-reinforced shape memory polyimide aerogel composites with high deformability and rapid recovery DOI
Yufan Zhang, Xiang Wang,

Minhao Guo

et al.

Composites Part A Applied Science and Manufacturing, Journal Year: 2025, Volume and Issue: unknown, P. 108907 - 108907

Published: April 1, 2025

Language: Английский

Citations

0
Designed Composite Aerogels With Solid–Solid Phase Transition and Nanoscale Pores for Infrared Stealth DOI
Yanyan Wang, Nan‐Sim Pang, Xiaoqing Yin

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Abstract Phase change materials (PCMs) and thermal insulation have garnered significant attention in infrared stealth applications due to their excellent temperature regulation capabilities. However, traditional PCMs often face leakage issues or are unable balance porous structure retention. In this work, a composite aerogel with dual solid skeletons is designed via homogeneous mixing. The not only features the nanoporous properties but also possesses solid–solid phase transition capability without PCM leakage. Compared pure polyimide (PI) aerogels, exhibits lower conductivity its density more intricate pore structure. retains maximum enthalpy of 111 J g −1 can significantly slow surface rise under high‐temperature conditions. addition, aerogels exhibit cyclic stability long‐term durability, further demonstrating potential for complex scenarios. When used cover graphite sheet at 136 °C, radiation reduced 25.5 performance. This study provides new insights designing high‐efficiency flexible

Language: Английский

Citations

0