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Self-Healing Polymers (self-healing + polymer)

Distribution by Scientific Domains
Polymers and Materials Science100%

Selected Abstracts

Embedded Shape-Memory Alloy Wires for Improved Performance of Self-Healing Polymers

ADVANCED FUNCTIONAL MATERIALS, Issue 17 2008
Eva L. Kirkby
No abstract is available for this article. [source]

Embedded Shape-Memory Alloy Wires for Improved Performance of Self-Healing Polymers,

ADVANCED FUNCTIONAL MATERIALS, Issue 15 2008
Eva L. Kirkby
Abstract We report the first measurements of self-healing polymers with embedded shape-memory alloy (SMA) wires. The addition of SMA wires shows improvements of healed peak fracture loads by up to a factor of 1.6, approaching the performance of the virgin material. Moreover, the repairs can be achieved with reduced amounts of healing agent. The improvements in performance are due to two main effects: (i) crack closure, which reduces the total crack volume and increases the crack fill factor for a given amount of healing agent and (ii) heating of the healing agent during polymerization, which increases the degree of cure of the polymerized healing agent. [source]

Self-Healing Polymers: Self-Healing Polymer Coatings (Adv. Mater.

ADVANCED MATERIALS, Issue 6 2009
6/2009)
Dramatic reduction in corrosion of a steel plate coated with a self-healing coating (right) as compared to a conventional coating is demonstrated. Two samples were scratched and placed in 5% NaCl for 5 days. The background is an optical image (2× magnification), in the foreground is an SEM image of the scratch. In the self-healing sample, the scratch has almost completely self-healed, while in the control sample, the scratch remains all the way down to the substrate, as reported by Paul Braun and co-workers on p.645. [source]

Embedded Shape-Memory Alloy Wires for Improved Performance of Self-Healing Polymers,

ADVANCED FUNCTIONAL MATERIALS, Issue 15 2008
Eva L. Kirkby
Abstract We report the first measurements of self-healing polymers with embedded shape-memory alloy (SMA) wires. The addition of SMA wires shows improvements of healed peak fracture loads by up to a factor of 1.6, approaching the performance of the virgin material. Moreover, the repairs can be achieved with reduced amounts of healing agent. The improvements in performance are due to two main effects: (i) crack closure, which reduces the total crack volume and increases the crack fill factor for a given amount of healing agent and (ii) heating of the healing agent during polymerization, which increases the degree of cure of the polymerized healing agent. [source]