CAS OpenIR
Constructing continuous networks by branched alumina for enhanced thermal conductivity of polymer composites
Ouyang, Yuge1,2; Hou, Guolin1; Bai, Liuyang1; Li, Baoqiang1,2; Yuan, Fangli1
2018-09-08
Source PublicationCOMPOSITES SCIENCE AND TECHNOLOGY
ISSN0266-3538
Volume165Pages:307-313
Abstract

Efficient heat dissipation performance of thermal management materials has become one of the most critical challenges in the development of modern microelectronic devices. However, traditional polymer composites display limited enhancement of thermal conductivity even when highly loaded with thermally conductive fillers due to the lack of efficient heat conductive channels. In this study, branched alumina (b-Al2O3) is first used as the filler to improve thermal conductivity of phenolic resin (PR) and the preparation of the Al2O3 with branched structures is simple and high efficient. It is found that PR composites with b-Al2O3 present excellent thermal conductivity (up to 1.481 W m(-1) K-1), which is equivalent to a dramatic enhancement of 7 times compared to neat matrix. The increased thermal conductivity should be attributed to that the branched structures of embedded b-Al2O3 particles tend to overlap each other and form continuous networks, which can act as efficient heat transfer pathways in PR matrix. Furthermore, PR composites with b-Al2O3 own improved thermal stability and decreased coefficient of thermal expansion (CTE) of 23 x 10(-6) K-1 compared to neat PR (71 x 10(-6) K-1). Meanwhile, composites with decreased dielectric loss tangent are achieved because of the incorporation of b Al2O3, which is extraordinary and hopeful result for thermal management materials. This strategy provides an insight for the development of high-performance composites with potential to be used in electronic packages fields.

KeywordPolymer-matrix Composites (Pmcs) Thermal Properties Heat Dissipation Alumina Continuous Networks
DOI10.1016/j.compscitech.2018.07.019
Language英语
WOS KeywordBoron-nitride ; Dielectric-constant ; Matrix Composites ; Nanocomposites ; Epoxy ; Hybrid ; Filler ; Resins ; Films
Funding ProjectNational Natural Science Foundation of China (NSFC)[11535003]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Composites
Funding OrganizationNational Natural Science Foundation of China (NSFC)
WOS IDWOS:000442977100037
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/25703
Collection中国科学院过程工程研究所
Corresponding AuthorYuan, Fangli
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.UCAS, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ouyang, Yuge,Hou, Guolin,Bai, Liuyang,et al. Constructing continuous networks by branched alumina for enhanced thermal conductivity of polymer composites[J]. COMPOSITES SCIENCE AND TECHNOLOGY,2018,165:307-313.
APA Ouyang, Yuge,Hou, Guolin,Bai, Liuyang,Li, Baoqiang,&Yuan, Fangli.(2018).Constructing continuous networks by branched alumina for enhanced thermal conductivity of polymer composites.COMPOSITES SCIENCE AND TECHNOLOGY,165,307-313.
MLA Ouyang, Yuge,et al."Constructing continuous networks by branched alumina for enhanced thermal conductivity of polymer composites".COMPOSITES SCIENCE AND TECHNOLOGY 165(2018):307-313.
Files in This Item:
File Name/Size DocType Version Access License
Constructing continu(2241KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Ouyang, Yuge]'s Articles
[Hou, Guolin]'s Articles
[Bai, Liuyang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ouyang, Yuge]'s Articles
[Hou, Guolin]'s Articles
[Bai, Liuyang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ouyang, Yuge]'s Articles
[Hou, Guolin]'s Articles
[Bai, Liuyang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.