Enhancing Thermal Conductivity of Thermal Interface Materials through Aligned Liquid Metal Pillars: A Promising Strategy

Zhao, Haonan1,2; Ye, Zhenqiang5; Li, Junwei3; Yao, Yimin2; Xu, Jianbin4; Sun, Rong2

2024-04-11

10.1021/acsapm.3c02917

ACS APPLIED POLYMER MATERIALS   影响因子和分区

2637-6105

This study presents an innovative technique to create an aluminum-polydimethylsiloxane (PDMS) composite embedded with liquid metal (LM) pillars, abbreviated as (Al-PDMS-LMP). This method not only allows for customized adjustment of the thermal conductivity of the thermal interface material but also efficiently utilizes the high thermal conductivity advantage of the liquid metal. When the liquid metal content is only 17.53 vol %, the thermal conductivity of the thermal interface material can reach 10.9 Wm(-1)K(-1). Moreover, the addition of LM pillars enhances pad softness, promoting better contact between thermal interfaces and heat dissipation components, thereby improving heat transfer efficiency. The Al-PDMS-LMP materials exhibit exceptional durability, maintaining over 85% thermal performance after 300 times of thermal shock cycles and a chip temperature variation within 1 C-degrees after 1000 power cycles. This method offers a promising solution for enhanced thermal management in electronic devices, enabling tailored conductivity for optimized heat dissipation, consistent performance across varying conditions, and improved reliability. By introducing a small fraction of LM array, the overall thermal conductivity is significantly improved. Therefore, our method achieves higher benefits at a lower cost, which strikes a balance between cost and performance, making it highly valuable for practical applications.

Thermal interface materials Heat transfer Liquid metal pillar Al-Polydimethylsiloxane Thermalconductivity

SCI ; EI

英语

第一

National Natural Science Foundation of China["52106119","U20A20301","62004210"] ; National Key R & D Project from Ministry of Science and Technology of China[2022YFA1203100] ; Guangdong Basic and Applied Basic research Foundation[2022A1515011637]

Materials Science ; Polymer Science

Materials Science, Multidisciplinary ; Polymer Science

WOS:001203890000001

AMER CHEMICAL SOC

Web of Science

1.Southern Univ Sci & Technol, Shenzhen 518055, Peoples R China
2.Chinese Acad Sci, Shenzhen Inst Adv Elect Mat, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China
3.Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China
4.Chinese Univ Hong Kong, Dept Elect Engn, Shatin, Hong Kong 999077, Peoples R China
5.Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518055, Peoples R China

Zhao, Haonan,Ye, Zhenqiang,Li, Junwei,et al. Enhancing Thermal Conductivity of Thermal Interface Materials through Aligned Liquid Metal Pillars: A Promising Strategy[J]. ACS APPLIED POLYMER MATERIALS,2024,6(8).

Zhao, Haonan,Ye, Zhenqiang,Li, Junwei,Yao, Yimin,Xu, Jianbin,&Sun, Rong.(2024).Enhancing Thermal Conductivity of Thermal Interface Materials through Aligned Liquid Metal Pillars: A Promising Strategy.ACS APPLIED POLYMER MATERIALS,6(8).

Zhao, Haonan,et al."Enhancing Thermal Conductivity of Thermal Interface Materials through Aligned Liquid Metal Pillars: A Promising Strategy".ACS APPLIED POLYMER MATERIALS 6.8(2024).