Harnessing reversible dry adhesion using shape memory polymer microparticles

Li, Wenbing; Liu, Junhao; Wei, Wanting; Qian, Kun

doi:10.1039/d1ra01473k

Cited by 2 publications

(3 citation statements)

References 47 publications

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“…Li et al 36 used thermal nanoimprinting process to fabricate stimulus-responsive dry adhesives. Briefly, they used particles based on shape memory polymers to produce a stimulusresponsive dry adhesive.…”

Section: Nanoimprint Lithographymentioning

confidence: 99%

Recent Progress on the Use of Stimulus-Responsive Materials for Dry Adhesive Applications

Hassani,

Baji

2023

ACS Appl. Bio Mater.

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Stimulus-responsive dry adhesives, inspired by the adhesive mechanisms displayed by the fibrillar structures present on the feet of geckos, have emerged as a promising area of research for applications such as robotic grippers and climbing robots. These stimulus-responsive dry adhesives exhibit some unique capabilities, as their ability to adhere to and detach from surfaces can be controlled with the help of an external stimulus. For example, studies have developed magnetic field-responsive dry adhesives and show that the adhesion of these materials can be turned on and off by controlling the applied magnetic field. Light-responsive adhesives have also been developed and shown to reverse their adhesion using infrared light as the stimulus. Such materials show tremendous promise in pick-andplace systems for handling delicate objects and microelectronic products. The focus of this article is to review the stimulus-responsive materials that have been used to develop dry adhesives. The mechanisms adopted by these stimulus-responsive materials to switch their adhesion are discussed. Applications of stimulusresponsive dry adhesives are presented, and last, the future perspective of these materials is discussed.

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Section: Nanoimprint Lithographymentioning

confidence: 99%

Recent Progress on the Use of Stimulus-Responsive Materials for Dry Adhesive Applications

Hassani,

Baji

2023

ACS Appl. Bio Mater.

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“…Then, cool and freeze stress in the deformation state. At last, when heated to a certain temperature, the material releases stress and automatically returns to its initial shape 4–6 . For SMP with a glass transition temperature ( T g ), the polymer becomes soft above T g and has high ductility 7 .…”

Section: Introductionmentioning

confidence: 99%

“…At last, when heated to a certain temperature, the material releases stress and automatically returns to its initial shape. [4][5][6] For SMP with a glass transition temperature (T g ), the polymer becomes soft above T g and has high ductility. 7 Besides, it can be highly deformed and extended, such as folding into a dense shape, while below T g the material is stiff.…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties evaluation of shape memory epoxy asphalt composites with high toughness and damping

Zhang

Huang

Zhang

et al. 2022

J of Applied Polymer Sci

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Shape memory materials have received great scientific attention for engineering applications because of their unique memory recoverable properties. In this study, high toughness and strong damping shape memory epoxy asphalt composites (SMEAC) were prepared, which can be widely used in the fields of bridge self-repairing expansion joints, crack sealants, vibration control, and damping devices in earthquake engineering. The mechanical properties, shape memory properties, and shape memory mechanism of SMEAC were analyzed by macroscopic and microscopic tests. The direct tensile tests showed that SMEAC has excellent toughness and strength. The temperature sweep test revealed that SMEAC has good damping properties. The shape memory recovery performance of SMEAC was analyzed by thermomechanical analyzer, and X-ray diffraction showed the change of full width at half maxima in SMEAC before and after deformation at microscopic level. Infrared spectroscopy and fluorescence microscopy indicated that the asphalt phase in SMEAC could participate in the curing reaction, which enhanced the miscibility between the asphalt phase and the epoxy resin phase. Finally, the curing mechanism of epoxy asphalt composites was derived by combining infrared spectral analysis.This work provides a theoretical reference for developing new shape memory materials and open up a new application mode for epoxy asphalt.

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Harnessing reversible dry adhesion using shape memory polymer microparticles

Abstract: Shape memory polymers can provide excellent bonding property because of their shape memory effects. This paper proposes an adhesive unit that is capable of repeatable smart adhesion and exhibits reversible adhesion under heating.

Cited by 2 publications

References 47 publications

Recent Progress on the Use of Stimulus-Responsive Materials for Dry Adhesive Applications

Recent Progress on the Use of Stimulus-Responsive Materials for Dry Adhesive Applications

Preparation and properties evaluation of shape memory epoxy asphalt composites with high toughness and damping

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