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Showing 1 to 14 of 14 for “"Self-healing polymers"”.
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Mechanochemical Triggers for Self -Healing Polymers
Mechanochemical triggers based on the electrocyclic ring opening of both trans and cis substituted benzocyclobutenes was studied. The products of mechanically-accelerated ring opening were studied by trapping experiments. Ultrasound induces ring opening at 10°C, whereas thermal activation only …
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Self-healing Polymers for Lithium Metal Batteries
L'abstract è presente nell'allegato / the abstract is in the attachment
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Evaluation of Tungsten Hexachloride as a ROMP Active Catalyst Precursor for Self -Healing Polymers
A drawback to current catalysts used in self-healing materials is the relatively low temperatures at which they deactivate. An advantage of WCl 6 is that the high melting temperature (Tm=275°C) allows for the use of the catalyst in higher temperature applications. Typical polymer and fiber …
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Solvent-based self-healing polymeric materials
Mechanical damage to bulk polymers typically begins as a microcrack, which can lead to eventual failure of the material if there is no method to inhibit crack growth. In living systems, this damage automatically initiates a healing response. Following the example of nature, self-healing polymers …
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Multi-stage polymer systems for the autonomic regeneration of large damage volumes
… encountered by autonomic regeneration. Although self-healing polymers have the potential to increase material lifetimes and safety, these systems have been limited to recovery of internal microcracks and surface damage. Current technologies thereby fail to address the restoration of large, open …
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Multimodal Soft Sensor Design through Single-Material Information Structuring
… responses of functional materials such as self-healing polymers. In doing so, numerous novel contributions are demonstrated: designing at the material level yields a 3D-printable sensorised hydrogel which responds to various multimodal stimuli; morphology explorations lead to a temperature …
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Modeling Damage Evolution and Damage Healing using Data Driven Method
… integrity and reliability. The intrinsic self-healing polymers are smart materials that have the capability to recuperate a crack partially or fully by intermolecular interaction such as disulfide, hydrogen bonding, hydrophobic interaction, ionic bonding. In this dissertation, we mainly …
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Self-healing of delamination damage in glass/epoxy composites using catalyst functionalized fibers
… these lightweight materials. As an alternative, self-healing polymers have been introduced as a way to autonomically repair damage in fiber-reinforced polymer composites, ultimately reducing maintenance costs associated with their use. In this work, self-healing applications are explored in 2D …
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Segmented Aromatic Polymers Containing Thermally Reversible Linkages
… a general synthetic platform for segmented polymers that have main-chain reversible linkages based on cyclopentadiene-maleimide Diels-Alder chemistry. Research in the area of thermally reversible (self-healing) polymers has been an ever-expanding area of interest in the current scientific …
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Self-healing of high temperature cured epoxy and composites
… and growth. Inspired by living systems, self-healing polymers are designed to autonomically repair damage whenever and wherever it occurs, thus providing a means to significantly extend the service life and reliability of polymeric structural elements. A variety of applications of the …
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Development of self-healing techniques for fiber reinforced composites
… cannot repair defects deep inside the material. Self-healing polymers is an approach which has not yet been incorporated to commercial composites but promises to face some principal weak points. This smart technology aims to in-situ repair matrix cracks and matrix/reinforcement debonding and thus …
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Solvent-based self-healing approaches for fiber-reinforced composites
… detect or costly to repair. The incorporation of self-healing functionality in composite materials has the potential to greatly extend material lifetime and reliability. Although there has been remarkable progress in self-healing polymers over the the past decade, self-repair in fiber-reinforced …
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Polymers and colloids in flows : from dynamics to self-healing
Polymers and colloids are important building blocks of life as well as many modern technologies. Driven by ow, polymers and colloids can express very complex yet interesting behavior. This thesis aims at a fundamental understanding of the dynamical properties of dierent polymer-colloid mixtures in …