Effect of Deep Eutectic Solvent on the Graphitization and Thermal Properties of Polyimide Films DOI Open Access

Jintao Huang,

Haoxin Lv,

Xiaojun Zhao

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

ABSTRACT Overheating of electronic devices reduces lifespan and increases safety risks. The use graphite films with high thermal conductivity to enhance dissipation in equipment is significant importance. This study used urea‐choline chloride (UCC) modify polyimide (PI) from two different monomer systems, which were then graphitized prepare a novel film conductivity. direct formation hydrogen bonds between poly(amic acid) (PAA) UCC facilitates the ordered structure during imidization, enhancing graphitization degree thermodynamic properties PI films. results indicate that increased 30% over 59% 4,4′‐oxydianiline‐pyromellitic dianhydride (OPU) system 80% 92% 4,4′‐diaminobenzoyltiphenylamine‐3,3′,4,4′‐biphenyl tetracarboxylic (DBU) system. Notably, dianhydride‐3.5 wt% (OPU35) (DBU35) exhibited highest their respective coefficients 45 742 W/m K, representing 200% 47.8% improvements pure PI‐based provides new material for heat devices.

Language: Английский

Waste biomass-based jackfruit peel/n-docosane composite phase change materials for thermal energy storage and battery thermal management DOI
Yue Luo,

Zuwei Pan,

Rui Gao

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 110, P. 115277 - 115277

Published: Jan. 7, 2025

Language: Английский

Citations

0
Artificial neural network predictions for temperature: Utilizing numerical analysis in immersion cooling systems using mineral oil and an engineered fluid for 32700 LiFePO4 DOI
Muhammed Dönmez, Merve Tekin, M. İhsan Karamangi̇l

et al.

International Journal of Thermal Sciences, Journal Year: 2025, Volume and Issue: 211, P. 109742 - 109742

Published: Jan. 26, 2025

Language: Английский

Citations

0
Realization of thermal management for CIGS solar roof tiles using a phase change material DOI
Jui-Yung Chang,

Cheng-An Tai,

Hua-Kuan Tseng

et al.

International Communications in Heat and Mass Transfer, Journal Year: 2025, Volume and Issue: 162, P. 108645 - 108645

Published: Jan. 29, 2025

Language: Английский

Citations

0
Flexible ion-crosslinked vermiculite nanosheet composite phase change materials with high energy storage density and reshapability DOI

Shibing Ren,

Xingzhao Liu, Min Li

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 113, P. 115629 - 115629

Published: Feb. 2, 2025

Language: Английский

Citations

0
Effect of Deep Eutectic Solvent on the Graphitization and Thermal Properties of Polyimide Films DOI Open Access

Jintao Huang,

Haoxin Lv,

Xiaojun Zhao

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

ABSTRACT Overheating of electronic devices reduces lifespan and increases safety risks. The use graphite films with high thermal conductivity to enhance dissipation in equipment is significant importance. This study used urea‐choline chloride (UCC) modify polyimide (PI) from two different monomer systems, which were then graphitized prepare a novel film conductivity. direct formation hydrogen bonds between poly(amic acid) (PAA) UCC facilitates the ordered structure during imidization, enhancing graphitization degree thermodynamic properties PI films. results indicate that increased 30% over 59% 4,4′‐oxydianiline‐pyromellitic dianhydride (OPU) system 80% 92% 4,4′‐diaminobenzoyltiphenylamine‐3,3′,4,4′‐biphenyl tetracarboxylic (DBU) system. Notably, dianhydride‐3.5 wt% (OPU35) (DBU35) exhibited highest their respective coefficients 45 742 W/m K, representing 200% 47.8% improvements pure PI‐based provides new material for heat devices.

Language: Английский

Citations

0