3D printing interface-modified PDMS/MXene nanocomposites for stretchable conductors

被引:22
|
作者
Aakyiir, Mathias [1 ]
Tanner, Brayden [1 ]
Yap, Pei Lay [2 ]
Rastin, Hadi [3 ]
Tung, Tran Thanh [2 ]
Losic, Dusan [2 ]
Meng, Qingshi [4 ]
Ma, Jun [1 ]
机构
[1] Univ South Australia, UniSA STEM & Future Ind Inst, Adelaide, SA 5095, Australia
[2] Univ Adelaide, Sch Chem Engn & Adv Mat, ARC Hub Graphene Enabled Ind Transformat, Adelaide, SA 5005, Australia
[3] Commonwealth Sci & Ind Res Org CSIRO Mfg, Clayton, Vic 3168, Australia
[4] Shenyang Aerosp Univ, Coll Aerosp Engn, Shenyang 110136, Liaoning, Peoples R China
基金
澳大利亚研究理事会;
关键词
3D printing; MXene; Nanocomposites; Stretchable conductors; GRAPHENE; PRINTABILITY; SENSORS; INKS;
D O I
10.1016/j.jmst.2021.11.048
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Additive manufacturing has rapidly evolved over recent years with the advent of polymer inks and those inks containing novel nanomaterials. The compatibility of polymer inks with nanomaterial inks remains a great challenge. Simple yet effective methods for interface improvement are highly sought-after to significantly enhance the functional and mechanical properties of printed polymer nanocomposites. In this study, we developed and modified a Ti3C2 MXene ink with a siloxane surfactant to provide compatibility with a polydimethylsiloxane (PDMS) matrix. The rheology of all the inks was investigated with parameters such as complex modulus and viscosity, confirming a self-supporting ink behaviour, whilst Fourier-transform infrared spectroscopy exposed the inks' reaction mechanisms. The modified MXene nanosheets have displayed strong interactions with PDMS over a wide strain amplitude. An electrical conductivity of 6.14 x 10(-2) S cm(-1) was recorded for a stretchable nanocomposite conductor containing the modified MXene ink. The nanocomposite revealed a nearly linear stress-strain relationship and a maximum stress of 0.25 MPa. Within 5% strain, the relative resistance change remained below 35% for up to 100 cycles, suggesting high flexibility, conductivity and mechanical resilience. This study creates a pathway for 3D printing conductive polymer/nanomaterial inks for multifunctional applications such as stretchable electronics and sensors. (C) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
引用
收藏
页码:174 / 182
页数:9
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