Enhancing Thermal Conductivity through Interface Modification: Experimental and Theoretical Validation for a Polymer-Metal Film

Wei, Baojie1,4; Wang, Shuting2; Wang, Xiaotong1; Li, Qingye3; Yang, Shuangqiao1

2024-04-08

10.1021/acssuschemeng.3c07991

ACS SUSTAINABLE CHEMISTRY & ENGINEERING   影响因子和分区

2168-0485

Polymer-metal composite materials have been extensively employed for thermal management in the electronic field. However, their application is hindered by limited thermal conductivity and inadequate electrical insulation. In this study, we present a novel strategy to prepare advanced polymer-metal films by incorporating cellulose nanofibers (CNFs) with orientated polydopamine (PDA) modified aluminum (Al) flakes, employing a straightforward process involving vacuum-assisted filtration and hot-pressing. The resulting Al@PDA/CNF films exhibited a superior in-plane thermal conductivity of 22.9 W/(mK) and electrical resistivity of 1.6 x 10(16) Omegacm, outperforming the Al/CNF films. Molecular dynamics simulation results showed that the interfacial interaction between Al and CNF was greatly improved by the hydrogen-bonding interaction with coated PDA, which acts as a "bridge" to promote phonon vibration matching, resulting in excellent heat transfer and electrical insulation properties. Our study provides a promising approach for the preparation of high-performance polymer-metal thermal interface materials (TIMs) with insulation, demonstrating great potential in thermal management applications.

composite films thermal conductivity interfacialthermal resistance molecular dynamics simulation electrical insulation

SCI ; EI

英语

其他

National Natural Science Foundation of China[52103123] ; Natural Science Foundation of Sichuan Province[2022NSFSC1919] ; China Postdoctoral Science Foundation["2020TQ0206","2020M683306"] ; Fundamental Research Funds for the Central Universities[2023SCUH0008]

Chemistry ; Science & Technology - Other Topics ; Engineering

Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical

WOS:001200655500001

AMER CHEMICAL SOC

Web of Science

1.Sichuan Univ, State Key Lab Polymer Mat Engn, Polymer Res Inst, Chengdu 610065, Peoples R China
2.Chinese Acad Sci, Shenzhen Inst Adv Elect Mat, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China
3.Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Peoples R China
4.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Wei, Baojie,Wang, Shuting,Wang, Xiaotong,et al. Enhancing Thermal Conductivity through Interface Modification: Experimental and Theoretical Validation for a Polymer-Metal Film[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2024,12(16).

Wei, Baojie,Wang, Shuting,Wang, Xiaotong,Li, Qingye,&Yang, Shuangqiao.(2024).Enhancing Thermal Conductivity through Interface Modification: Experimental and Theoretical Validation for a Polymer-Metal Film.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,12(16).

Wei, Baojie,et al."Enhancing Thermal Conductivity through Interface Modification: Experimental and Theoretical Validation for a Polymer-Metal Film".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 12.16(2024).