Ultrastrong bonding, on-demand debonding, and easy re-bonding of non-sticking materials enabled by reversibly interlocked macromolecular networks-based Janus-like adhesive

Wang, Zheng; You, Yang; Li, Mengran; Rong, Min Zhi; Zhang, Ming Qiu

doi:10.1039/d3mh00514c

Mater. Horiz.

2023

DOI: 10.1039/d3mh00514c

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Ultrastrong bonding, on-demand debonding, and easy re-bonding of non-sticking materials enabled by reversibly interlocked macromolecular networks-based Janus-like adhesive

Zheng Wang

Yang You

Mengran Li

et al.

Abstract: Simultaneously gluing hydrophobic and hydrophilic materials is a highly desired but intractable issue. Herein, we developed a facile strategy using reversibly interlocked macromolecular networks (ILNs) as adhesive. As shown by...

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2024

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Cited by 5 publications

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A Tough Monolithic‐Integrated Triboelectric Bioplastic Enabled by Dynamic Covalent Chemistry

Shao,

Du,

Luo

et al. 2024

Advanced Materials

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Electronic waste is a growing threat to the global environment and human health, raising particular concerns. Triboelectric devices synthesized from sustainable and degradable materials are a promising electronic alternative, but the mechanical mismatch at the interface between the polymer substrate and the electrodes remains unresolved in practical applications. This study used the sulfhydryl silanization reaction and the chemical selectivity and site specificity of the thiol‐disulfide exchange reaction in dynamic covalent chemistry to prepare a tough monolithic integrated triboelectric bioplastic. The stress is dissipated by covalent bond adaptation to the interface interaction, which makes the polymer dielectric layer to the conductive layer have a good interface adhesion effect (220.55 kPa). The interfacial interlocking of the polymer substrate with the conductive layer gives the triboelectric bioplastic excellent tensile strength (87.4 MPa) and fracture toughness (33.3 MJ m−3). Even when subjected to a tension force of 10000 times its weight, it still maintains a stable triboelectric output with no visible cracks. This study provides new insights into the design of reliable and environmentally friendly self‐powered devices, which is significant for the development of flexible wearable electronics.This article is protected by copyright. All rights reserved

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A Tough Monolithic‐Integrated Triboelectric Bioplastic Enabled by Dynamic Covalent Chemistry

Shao,

Du,

Luo

et al. 2024

Advanced Materials

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Robust Transient Semi‐Glue Tape: Ultrastrong Adhesion Empowered by Water Activation and Self‐Locking

Yao,

Peng,

Zhu

et al. 2024

Advanced Materials

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In adhesive industry, tapes are renowned for their superior flexibility, repeatability, and ease of storage compared to glues. However, conventional adhesive tapes often suffer from low adhesion strength (<500 kPa). This work introduces an innovative adhesive tape composed of an amphiphilic copolymer and a hydrophobic ionic liquid, achieving an ultrahigh adhesion strength of up to 3.1 MPa on various substrates, making a record‐high strength to date for tape‐type adhesives. This exceptional adhesion performance is facilitated by water droplets applied at the bonding interface, transforming the adhesive surface into a glue‐like property without the need for curing treatments or additional auxiliary equipment. By combining the advantageous features of both glues and tapes, these adhesives are termed as transient semi‐glue tapes (TSGT). The mechanism behind such water activation and self‐locking process is elucidated, and a general preparation approach is developed. Furthermore, the repeatability and recyclability of TSGT are demonstrated, offering an ingenious solution to this long‐standing engineering challenge.

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Asynchronous Ring Opening of Cyclic Carbonate and Glycidyl Ether Induced Phase Evolution Towards Heat‐Free and Rapid‐Bonding Superior Epoxy Adhesive

Niu,

Li,

Zhu

et al. 2024

Angewandte Chemie

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Structural adhesives that do not require heating are in high demand in the automotive and electronics industries. However, it remains a challenge to develop robust adhesives that rapidly achieve super adhesion near ambient temperature. Herein, a room‐temperature curable, fast‐bonding, and super strong epoxy‐based structural adhesive was designed from the perspective of cross‐scale structure, which lies in threefold pivotal aspects: (i) high branching topology of glycerol carbonate‐capped polyurethane (PUGC) increases the kinetics of the ring‐opening reaction, contributing to fast crosslinking and the formation of abundant urethane and hydroxyl moieties; (ii) asynchronous crosslinking of epoxy and PUGC synergistically induces phase separation of PUGC within the epoxy resin and the resulting PUGC domains surrounded by interpenetrated shell serves to efficiently toughen the matrix; (iii) abundant dynamic hydrogen bonds including urethane and hydroxyl moieties, along with the elastomeric PUGC domains, dissipate energy of shearing force. As a result, the adhesive strength rapidly grows to 16 MPa within 4 hours, leveling off to 21 MPa after 7 hours, substantially outperforming commercial room‐temperature curable epoxy adhesives. The results of this study could advance the field of high‐performance adhesives and provide valuable insights into designing materials for efficient curing at room temperature.

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Ultrastrong bonding, on-demand debonding, and easy re-bonding of non-sticking materials enabled by reversibly interlocked macromolecular networks-based Janus-like adhesive

Abstract: Simultaneously gluing hydrophobic and hydrophilic materials is a highly desired but intractable issue. Herein, we developed a facile strategy using reversibly interlocked macromolecular networks (ILNs) as adhesive. As shown by...

Cited by 5 publications

References 58 publications

A Tough Monolithic‐Integrated Triboelectric Bioplastic Enabled by Dynamic Covalent Chemistry

A Tough Monolithic‐Integrated Triboelectric Bioplastic Enabled by Dynamic Covalent Chemistry

Robust Transient Semi‐Glue Tape: Ultrastrong Adhesion Empowered by Water Activation and Self‐Locking

Asynchronous Ring Opening of Cyclic Carbonate and Glycidyl Ether Induced Phase Evolution Towards Heat‐Free and Rapid‐Bonding Superior Epoxy Adhesive

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