An Engineered Heterostructured Trinity Enables Fire-Safe, Thermally Conductive Polymer Nanocomposite Films with Low Dielectric Loss - Details

author：

Indexed by：

Scopus

Abstract：

The　as-fabricated　waterborne　polyurethane　(WPU)　nanocomposite　film　exhibits　a　55.6%　improvement　in　limiting　oxygen　index,　66.0%　and　40.5%　reductions　in　peak　heat　release　rate　and　total　heat　release,　respectively,　and　93.3%　increase　in　tensile　strength　relative　to　pure　WPU　film.　The　resultant　WPU　nanocomposite　film　presents　a　high　thermal　conductivity　(λ)　of　12.7　W　m−1 K−1　and　a　low　dielectric　constant　(ε)　of　2.92　at　106 Hz.　©　The　Author(s)　2025.;　To　adapt　to　the　trend　of　increasing　miniaturization　and　high　integration　of　microelectronic　equipments,　there　is　a　high　demand　for　multifunctional　thermally　conductive　(TC)　polymeric　films　combining　excellent　flame　retardancy　and　low　dielectric　constant　(ε).　To　date,　there　have　been　few　successes　that　achieve　such　a　performance　portfolio　in　polymer　films　due　to　their　different　and　even　mutually　exclusive　governing　mechanisms.　Herein,　we　propose　a　trinity　strategy　for　creating　a　rationally　engineered　heterostructure　nanoadditive　(FG@CuP@ZTC)　by　in　situ　self-assembly　immobilization　of　copper-phenyl　phosphonate　(CuP)　and　zinc-3,　5-diamino-1,2,4-triazole　complex　(ZTC)　onto　the　fluorinated　graphene　(FG)　surface.　Benefiting　from　the　synergistic　effects　of　FG,　CuP,　and　ZTC　and　the　bionic　lay-by-lay　(LBL)　strategy,　the　as-fabricated　waterborne　polyurethane　(WPU)　nanocomposite　film　with　30　wt%　FG@CuP@ZTC　exhibits　a　55.6%　improvement　in　limiting　oxygen　index　(LOI),　66.0%　and　40.5%　reductions　in　peak　heat　release　rate　and　total　heat　release,　respectively,　and　93.3%　increase　in　tensile　strength　relative　to　pure　WPU　film　due　to　the　synergistic　effects　between　FG,　CuP,　and　ZTC.　Moreover,　the　WPU　nanocomposite　film　presents　a　high　thermal　conductivity　(λ)　of　12.7　W　m−1 K−1　and　a　low　ε　of　2.92　at　106 Hz.　This　work　provides　a　commercially　viable　rational　design　strategy　to　develop　high-performance　multifunctional　polymer　nanocomposite　films,　which　hold　great　potential　as　advanced　polymeric　thermal　dissipators　for　high-power-density　microelectronics.　(Figure　presented.)　©　The　Author(s)　2025.

Keyword：

Bionic strategy Dielectric constant Flame retardancy Fluorinated graphene Thermal conductivity

Community：

[ 1 ] [Chen Q.]Key Laboratory of Integrated Regulation and Resource Development On Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
[ 2 ] [Feng J.]College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, China
[ 3 ] [Xue Y.]Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry (CAF), Nanjing, 210042, China
[ 4 ] [Huo S.]Centre for Future Materials, School of Engineering, University of Southern Queensland, Springfield, 4300, Australia
[ 5 ] [Dinh T.]Centre for Future Materials, School of Engineering, University of Southern Queensland, Springfield, 4300, Australia
[ 6 ] [Xu H.]Key Laboratory of Integrated Regulation and Resource Development On Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
[ 7 ] [Xu H.]Suzhou Research Institute, Hohai University, Suzhou, 215100, China
[ 8 ] [Shi Y.]College of Environment and Safety Engineering, Fuzhou University, Fuzhou, 350116, China
[ 9 ] [Gao J.]School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
[ 10 ] [Tang L.-C.]Key Laboratory of Organosilicon Chemistry and Material Technology of MoE, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
[ 11 ] [Huang G.]School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang, 318000, China
[ 12 ] [Lei W.]School of Science, RMIT University, Melbourne, 3000, VIC, Australia
[ 13 ] [Song P.]Centre for Future Materials, School of Agriculture and Environmental Science, University of Southern Queensland, Springfield, 4300, Australia

Reprint 's Address：

Email：

Show more details

Related Keywords：

An Engineered Heterostructured Trinity Enables Fire-Safe, Thermally Conductive Polymer Nanocomposite Films with Low Dielectric Loss
2025，NANO-MICRO LETTERS
Flexible, thermostable and flame-resistant epoxy-based thermally conductive layered films with aligned ionic liquid-wrapped boron nitride nanosheets via cyclic layer-by-layer blade-casting
2022，CHEMICAL ENGINEERING JOURNAL
Simultaneous exfoliation and functionalization of high-aspect-ratio boron nitride nanosheets and their application in composite membranes for fire-warning systems
2024，Materials Letters
Anisotropic dielectric dispersions and thermal behaviors in highly textured BN thin films for heat self-dissipating electronics
2024，VACUUM
Epoxidation of pillar[5]arene with three dimensional macrocyclic structure and host-guest capability for epoxy coatings
2022，PROGRESS IN ORGANIC COATINGS

Source ：

Nano-Micro Letters

ISSN： 2311-6706

Year： 2025

Issue： 1

Volume： 17

3 1 . 6 0 0

JCR@2023

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 0

Affiliated Colleges：

Get Fulltext

DOI Library Discovery Baidu Scholar Search SCOPUS

Type
Departments

All Years Choose Year From to