Robust bioinspired MXene-based flexible films with excellent thermal conductivity and photothermal properties

被引：71

作者：

Jiao, Enxiang ^{[1
,2
,4
]}

Wu, Kun ^{[1
,2
]}

Liu, Yingchun ^{[1
,2
,3
]}

Lu, Maoping ^{[1
,2
,5
]}

Zhang, Hangzhen ^{[1
,2
]}

Zheng, Haoting ^{[1
,2
,6
]}

Xu, Chang-an ^{[1
,2
,6
]}

Shi, Jun ^{[1
,2
]}

Lu, Mangeng ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Guangzhou Inst Chem, Guangzhou 510650, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 10049, Peoples R China

[3] Guangdong Prov Key Lab Organ Polymer Mat Elect, Guangzhou 510650, Peoples R China

[4] CAS Engn Lab Special Fine Chem, Guangzhou 510650, Peoples R China

[5] CASH GCC Nanxiong Res Inst New Mat Co Ltd, Nanxiong 512400, Peoples R China

[6] New Mat Res Inst CASCHEM Chongqing Co Ltd, Chongqing 400714, Peoples R China

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2021年 / 143卷

基金：

国家重点研发计划;

关键词：

MXene; Thermal conductivity; Mechanical properties; Photothermal properties; TRANSITION-METAL CARBIDES; GRAPHENE;

D O I：

10.1016/j.compositesa.2021.106290

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A flexible cellulose nanofibers/MXene@Ag film with nacre-like structure is constructed by a facile vacuumassisted filtration process. The composite film shows an outstanding thermal conductivity of 22.43 W m(-1) K-1 at 30 wt% MXene@Ag loading, which enhances 769% relative to the pure CNFs film. This is mainly due to the bridging effect of silver nanoparticles can greatly reduce the interface thermal resistance between MXene nanosheets in the CNFs matrix. Particularly, the CNF/MXene film present a typical biomimetic nacre-like structure, which resulting in the satisfactory mechanical properties with a tensile strength of 71.4 +/- 2.8 MPa and a toughness of 1.0 +/- 0.06 MJ m(-3). Moreover, the composite film exhibits excellent photothermal properties that the surface temperature of the CNF/MXene@Ag film can rose to -48 degrees C after 210 s of 55 W light irradiation. Hence, our work provides a facial method for preparation of multifunctional thermal management film.

引用

页数：10

共 38 条

[1] Electrically and thermally conductive elastomer by using MXene nanosheets with interface modification [J].