Room-temperature Self-healing and Recyclable PDMS Elastomers with Superior Mechanical Properties for Triboelectric Nanogenerators

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外文摘要：Polydimethylsiloxane(PDMS)is an electron-withdrawing material that is widely used in triboelectric nanogenerators(TENGs).Howev-er,PDMS has poor mechanical properties after curing and is easily damaged when subjected to long-term workloads.Thus,the long-term stable operation of TENGs under mechanical deformation cannot be guaranteed.In this work,multiple hydrogen bonds and aromatic disulfide bonds were introduced into PDMS elastomers.These elastomers exhibited high toughness(a tensile strength of 1.91 MPa and an elongation at break of 340％),good recyclability,and room-temperature self-healing properties(healing efficiency of 96.4％in 24 h).Recyclable sandwich-like triboelec-tric nanogenerators with excellent electrical output performance(13.5 V)and room-temperature self-healing performance(24 h,98％recovery of self-generating performance)were prepared by utilizing the hydrogen bonding between the PDMS elastomer and MXene.The work reported herein offers theoretical guidance and a compelling strategy for developing high-performance TENG negative friction layers.

外文关键词：

PolydimethylsiloxaneAromatic disulfide bondsHydrogen bondsRoom temperature self-healingTriboelectric nanogenerator

作者：

Shu-Juan Wang、Lu Wang、Hong-Zhe Su、Zhi-Cheng Wu、Qiao-Gen Zhang、Wei Fan、Xin-Li Jing

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作者单位：

School of Chemistry,Joint Innovation Center of Thermal Protection Materials,Xi'an Jiaotong University,Xi'an 710049,China

School of Electrical Engineering,Xi'an Jiaotong University,Xi'an 710049,China

School of Textile Science and Engineering,Xi'an Polytechnic University,Xi'an 710048,China

基金：

National Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaOpen Funding Project of Shaanxi Key Laboratory of Aerospace Composite from Xi'an Aerospace Composites Research Institute

项目编号：

2023YFB240710052173080

出版年：

2024

DOI：

10.1007/s10118-024-3178-5

高分子科学(英文版)

中国化学会　中国科学院化学研究所

高分子科学(英文版)

CSTPCD

影响因子：0.721

ISSN：0256-7679

年,卷(期)：2024.42(10)