SDS-stabilized graphene nanosheets for highly electrically conductive adhesives

被引：52

作者：

Amoli, Behnam Meschi ^{[1
,2
,4
]}

Trinidad, Josh ^{[1
,2
]}

Rivers, Geoffrey ^{[2
,3
]}

Sy, Serubbabel ^{[1
,2
]}

Russo, Paola ^{[2
,3
,4
]}

Yu, Aping ^{[1
,2
]}

Zhou, Norman Y. ^{[2
,3
,4
]}

Zhao, Boxin ^{[1
,2
,4
]}

机构：

[1] Univ Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada

[2] Univ Waterloo, Waterloo Inst Nanotechnol, Waterloo, ON N2L 3G1, Canada

[3] Univ Waterloo, Dept Mech & Mechatron Engn, Waterloo, ON N2L 3G1, Canada

[4] Univ Waterloo, Ctr Adv Mat Joining, Waterloo, ON N2L 3G1, Canada

来源：

CARBON | 2015年 / 91卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

FUNCTIONALIZED GRAPHENE; SILVER NANOPARTICLES; EPOXY COMPOSITES; NANOCOMPOSITES; MECHANISMS;

D O I：

10.1016/j.carbon.2015.04.039

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

We report sodium dodecyl sulfate (SDS) stabilization of graphene nanosheets, with two different sizes as auxiliary fillers inside the conventional electrically conductive adhesive (ECA) composite. Using this non-covalent modification approach we were able to preserve the single-layer structure of graphene layers and prevent their re-stacking inside the composite, which resulted in a significant electrical conductivity improvement of ECAs at noticeably low filler content. Addition of 1.5 wt% small and large SDS-modified graphene into the conventional ECAs with 10 wt% silver flakes led to low electrical resistivity values of 5.5 x 10(3) Omega cm and 35 Omega cm, respectively, while at least 40 wt% of silver flakes was required for the conventional ECA to be electrically conductive. A highly conductive ECA with very low bulk resistivity of 1.6 x 10(-5) Omega cm was prepared by adding 1.5 wt% of SDS-modified large graphene into the conventional ECA with 80 wt% silver flakes which is less than that of eutectic lead-based solders. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：188 / 199

页数：12

共 47 条

[1]

Highly electrically conductive adhesives using silver nanoparticle (Ag NP)-decorated graphene: the effect of NPs sintering on the electrical conductivity improvement [J].