AWI-Assembled TPU-BNNS Composite Films with High In-Plane Thermal Conductivity for Thermal Management of Flexible Electronics

Wang, Qiaoli1,2; Li, Tianshuo1,3; Ding, Yafei4; Chen, Huibao1,2; Cao, Xiyue5; Xia, Jianfei5; Li, Baowen4,7,8; Sun, Bin1,2,6

2022-09-01

10.1021/acsami.2c12386

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

1944-8252

Thermal management of flexible/stretchable electronics has been a crucial issue. Mass supernumerary thermal heat is created in the repetitive course of deformation because of the large nanocontact resistance between electric conductive fillers, as well as the interfacial resistance between fillers and the polymer matrix. Here, we report a stretchable thermoplastic polyurethane (TPU)-boron nitride nanosheet (BNNS) composite film with a high in-plane thermal conductivity based on an air/water interfacial (AWI) assembly method. In addition to rigid devices, it was capable for thermal management of flexible electronics. During more than 2000 cycles of the bending-releasing process, the average saturated surface temperature of the flexible conductor covered with composite film with 30 wt % BNNSs was approximately 40.8 +/- 1 degrees C (10.5 degrees C lower than that with pure TPU). Moreover, the thermal dissipating property of the composite under stretching was measured. All the results prove that this TPUBNNS composite film is a candidate for thermal management of next-generation flexible/stretchable electronics with high power density.

air/water interfacial assembly composites thermal conductivity thermal management flexible electronics

SCI

英语

通讯

Natural Science Foundation of Shandong Province[ZR2020ME193] ; Shandong Natural Science Funds for Distinguished Young Scholar[ZR2020JQ20]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000851037900001

AMER CHEMICAL SOC

Web of Science

1.Qingdao Univ, Coll Phys, Qingdao 266071, Peoples R China
2.Qingdao Univ, Coll Elect & Informat, Qingdao 266071, Peoples R China
3.Maanshan Univ, Dept Basic, Maanshan 243100, Peoples R China
4.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Dept Mat Sci & Engn, Dept Phys, R China, Shenzhen 518055, Peoples R China
5.Qingdao Univ, Instrumental Anal Ctr, Coll Chem & Chem Engn, Shandong Sino Japanese Ctr Collaborat Res Carbon N, Qingdao 266071, Peoples R China
6.Qingdao Univ, Weihai Innovat Res Inst, Weihai 264200, Peoples R China
7.Univ Colorado, Paul M Rady Dept Mech Engn, Boulder, CO 80305 USA
8.Univ Colorado, Dept Phys, Boulder, CO 80305 USA

Wang, Qiaoli,Li, Tianshuo,Ding, Yafei,et al. AWI-Assembled TPU-BNNS Composite Films with High In-Plane Thermal Conductivity for Thermal Management of Flexible Electronics[J]. ACS Applied Materials & Interfaces,2022.

Wang, Qiaoli.,Li, Tianshuo.,Ding, Yafei.,Chen, Huibao.,Cao, Xiyue.,...&Sun, Bin.(2022).AWI-Assembled TPU-BNNS Composite Films with High In-Plane Thermal Conductivity for Thermal Management of Flexible Electronics.ACS Applied Materials & Interfaces.

Wang, Qiaoli,et al."AWI-Assembled TPU-BNNS Composite Films with High In-Plane Thermal Conductivity for Thermal Management of Flexible Electronics".ACS Applied Materials & Interfaces (2022).