CURING KINETICS and DIELECTRIC PROPERTIES of EPOXY BASED NANOCOMPOSITES

被引：0
|
作者：
Zhao, H. C. [1 ]
Zhang, X. Y. [1 ]
Han, Z. D. [2 ]
机构：
[1] Harbin Univ Sci & Technol, Sch Mat Sci & Engn, Harbin 150040, Peoples R China
[2] Harbin Univ Sci & Technol, Minist Educ, Key Lab Engn Dielect & Applicat, Harbin 150080, Peoples R China
来源：
2012 IEEE 10TH INTERNATIONAL CONFERENCE ON THE PROPERTIES AND APPLICATIONS OF DIELECTRIC MATERIALS (ICPADM) | 2012年
关键词：
epoxy resin; nanocomposites; curing kinetics; dielectric properties; alumina; nitrile rubber; RESIN;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, epoxy based nanocomposites were prepared by adding inorganic alumina nano-particles and organic nitrile rubber nano-powders. The effects of two kinds of nano-particles on the curing kinetics of epoxy nanocomposites were investigated by differential scanning calorimetry (DSC). The dielectric properties of nanocomposites were evaluated in terms of volume resistivity (rho(v)), dielectric loss tangent (tg delta) and dielectric constant (epsilon). The results show that the activation energy of nanocomposites with single kind of nano-particles was decreased while the one with two kinds of nano-particles was increased. The same curing mechanism of nanocomposites as epoxy resin was revealed according to the similar reaction order. The volume resistivity of the nanocomosites was in the same order with the pure epoxy resin. Meanwhile, the dielectric constants of the nanocomposites were increased thanks to the higher dielectric constants of alumina and nitrile rubber than epoxy resin. The mixed nano-particles contributed more to the dielectric constants and the dielectric loss tangent of the nanocomposites.
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页数：4
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