Preparation and Characterization of Epoxy Resin Filled with Ti3C2Tx MXene Nanosheets with Excellent Electric Conductivity.

Ailing Feng,Yi Zhang,Guanglei Wu,Fan Zhang,Tianqi Hou,Zirui Jia

doi:10.3390/nano10010162

Abstract

MXene represents new kinds of two-dimensional material transition metal carbides and/or carbonitrides, which have attracted much attention in various applications including electrochemical storage devices, catalysts, and polymer composite. Here, we report a facile method to synthesize Ti3C2Tx MXene nanosheets and prepare a novel electrically conductive adhesive based on epoxy resin filled with Ti3C2Tx MXene nanosheets by solution blending. The structure, morphology, and performance of Ti3C2Tx MXene nanosheets and epoxy/Ti3C2Tx MXene nanosheets composite were investigated. The results show that Ti3C2Tx MXene possesses nanosheet structure. Ti3C2Tx MXene nanosheets were homogeneously dispersed in epoxy resin. Electrical conductivity and mechanical properties measurements reveal that the epoxy/Ti3C2Tx MXene nanosheet composite exhibited both good electrical conductivity (4.52 × 10−4 S/m) and favorable mechanical properties (tensile strength of 66.2 MPa and impact strength of 24.2 kJ/m2) when the content of Ti3C2Tx MXene nanosheets is 1.2 wt %. Thus, Ti3C2Tx MXene is a promising filler for electrically conductive adhesive with high electric conductivity and high mechanical performance.

Highlights

With the progression of science and technology, electronic units are developing towards the direction of miniaturization, portability, and high integration [1,2,3,4,5]
electrical conductive adhesives (ECAs) consist of polymer and electrical conductive fillers
The results show that the electrical property and mechanical performance of the EP/Ti3C2Tx MXene nanosheets ECAs could be improved compared to pure EP resin

Summary

Introduction

With the progression of science and technology, electronic units are developing towards the direction of miniaturization, portability, and high integration [1,2,3,4,5]. The electronic packaging industry demands interconnect bonding technology, which could offer excellent electrical conductivity, good flexibility, and satisfied mechanical strength [6,7,8,9]. It should be cost effective and environmentally benign. MXenes is a new kind of transition metal carbide/nitride two-dimensional material with graphene-like structure. Their chemical formulas are Mn+1Xn, where M is an early transition metal, X is C and/or N, and n represents the number of X (1, 2, or 3). Our work may shed lights on the development of ECAs with high electric conductivity and high mechanical performance in the electronic industry

Material

Results and Discussion

C Ti O F Al

Electrical Conductivity and Mechanical Performance

Conclusions