Development of self-healing linear actuator unit using thermoplastic resin*

Self-regenerating, polymer-based textiles emulate living organisms’ ability to heal broken skin and other lesser injuries. To achieve this effect, either intrinsic or extrinsic methods of having polymeric compounds mend these damages can be employed. Depending on the method used, the handling and results of the self-regenerating effect differ. This allows for different areas of application. The focus of this paper is to discuss some of these potential textile applications as well as related research and developments in the area of self-healing materials.

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“…Self-healing materials can be categorized into two different methods -intrinsic and extrinsic as well as autonomous and non-autonomous [20]. Fig.…”

Section: Functionality and Classificationmentioning

confidence: 99%

Self-healing materials for potential use in textile and clothing applications

Dannehl

Buhr

Leyton

et al. 2023

cdatp

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“…Miyake et al. took a similar approach by creating a fuse [ 166 ] for a linear actuator using a thermoplastic polymer. While thermoplastic polymers are not generally regarded as self‐healing materials themselves, the concept of using the thermoplastic fuse and a controlled thermal trigger does also result in a self‐healing system concept.…”

Section: Formative Manufacturingmentioning

confidence: 99%

“…The two parts of the fuse were joined together upon heating to act as a sacrificial element, breaking at a designed force and protecting more vital parts of a stiff robotic actuator. Miyake et al took a similar approach by creating a fuse [166] for a linear actuator using a thermoplastic polymer. While thermoplastic polymers are not generally regarded as self-healing materials themselves, the concept of using the thermoplastic fuse and a controlled thermal trigger does also result in a self-healing system concept.…”

Section: Compression Moldingmentioning

confidence: 99%

Processing of Self‐Healing Polymers for Soft Robotics

et al. 2021

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Soft robots are, due to their softness, inherently safe and adapt well to unstructured environments. However, they are prone to various damage types. Self‐healing polymers address this vulnerability. Self‐healing soft robots can recover completely from macroscopic damage, extending their lifetime. For developing healable soft robots, various formative and additive manufacturing methods have been exploited to shape self‐healing polymers into complex structures. Additionally, several novel manufacturing techniques, noted as (re)assembly binding techniques that are specific to self‐healing polymers, have been created. Herein, the wide variety of processing techniques of self‐healing polymers for robotics available in the literature is reviewed, and limitations and opportunities discussed thoroughly. Based on defined requirements for soft robots, these techniques are critically compared and validated. A strong focus is drawn to the reversible covalent and (physico)chemical cross‐links present in the self‐healing polymers that do not only endow healability to the resulting soft robotic components, but are also beneficial in many manufacturing techniques. They solve current obstacles in soft robots, including the formation of robust multi‐material parts, recyclability, and stress relaxation. This review bridges two promising research fields, and guides the reader toward selecting a suitable processing method based on a self‐healing polymer and the intended soft robotics application.

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“…Moreover, the volume change associated with the spin crossover phenomenon could favor the self-healing efficiency by bringing together active entities, in particular, in the case of intrinsically SHPs. These developments are part of the search to achieve intelligent multifunctional polymer materials. − Recently, the combination of self-healing polymeric materials and soft actuators with remarkable performance afforded systems with the potential to revolutionize many of the aspects of our life, from healthcare to energy. , Beyond this concept, such composite materials could be useful for not only the mechanical reparation purpose of the composite polymer actuators but also to design devices with preprogrammed movements. Indeed, although the shape morphing approach and/or modern techniques like 3D printing can be used to produce specific devices with a sought-after morphology, the assembly of composite materials by self-healing could be an easier and more versatile approach .…”

Section: Introductionmentioning

confidence: 99%

Self-Healing Composite Polymers Based on Spin Crossover Materials for Multidirectional Preprogrammed Actuation

Enriquez-Cabrera,

Yang,

Alavi

et al. 2024

ACS Appl. Polym. Mater.

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A dimethylglyoxime−urethane-based self-healing polyurethane elastomer with a distinct two-phase morphology combining high extensibility (>500%), a high Young's modulus (40 MPa), and a high healing efficiency based on dual dynamic bonds at room temperature was obtained. Such a polymer was used for fabrication by blade casting and/or self-healing bilayer actuators incorporating a composite layer formed by anisometric spin crossover particles presenting anisotropic volume change and showing large transformation strain above room temperature. Thus, the self-healing polymer, generally used for damage reparation, is also useful for the shaping of the bilayer composite actuator as well as to guide its preprogrammed motion.

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Development of self-healing linear actuator unit using thermoplastic resin*

Cited by 6 publications

References 19 publications

Self-healing materials for potential use in textile and clothing applications

Self-healing materials for potential use in textile and clothing applications

Processing of Self‐Healing Polymers for Soft Robotics

Self-Healing Composite Polymers Based on Spin Crossover Materials for Multidirectional Preprogrammed Actuation

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