Mechanical Properties and Thermal Conductivity of Epoxy Composites Containing Aluminum-Exfoliated Graphite Nanoplatelets Hybrid Powder

被引：15
|
作者：
Kim, Jin Seob [1 ]
Yoon, Kwan Han [1 ]
Lee, Young Sil [2 ]
Han, Jong Hun [3 ]
机构：
[1] Kumoh Natl Inst Technol, Dept Chem Engn, Gumi 39177, Gyeongbuk, South Korea
[2] Kumoh Natl Inst Technol, Ind Acad Cooperat Fdn, Gumi 39177, Gyeongbuk, South Korea
[3] Chonnam Natl Univ, Sch Chem Engn, Gwangju 61186, South Korea
来源：
MACROMOLECULAR RESEARCH | 2021年 / 29卷 / 03期
基金：
新加坡国家研究基金会;
关键词：
epoxy; aluminum flake; exfoliated graphite nanoplatelets; mechanical property; thermal conductivity; POLYPROPYLENE NANOCOMPOSITES; PERFORMANCE;
D O I：
10.1007/s13233-021-9032-5
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Epoxy/aluminum-exfoliated graphite nanoplatelet (Al-xGnP) composites were prepared. Prior to the preparation of the composite, two types of Al-xGnP hybrid powder were prepared, one is fully inserted xGnP in aluminum (Al) flake and the other is partially inserted xGnP in Al flake, which were confirmed by TEM images. The thermal conductivities of the epoxy composites increased monotonically with the filler content and the partially and fully inserted epoxy/Al-xGnP composites showed almost 2-3 times higher than those of epoxy/xGnP and epoxy/Al composites. Especially, partially inserted epoxy/Al-xGnP composite showed the highest values of thermal conductivity at the same filler concentration because of the network bridge between Al flakes. The tensile and flexural moduli of the fully inserted epoxy/Al-xGnP showed the highest value in all areas of the filler content because of the good dispersion quality but the tensile and flexural strengths of all epoxy composites decreased with the filler content due to the increase of weak interface between epoxy matrix and the filler.
引用
收藏
页码：252 / 256
页数：5
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