Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Microencapsulation, self-healing polymers

Kirkby, E.L., Michaud, V.J., MSnson, J.A.E., Sottos, N.R., and White, S.R. (2009) Performance of self-healing epoxy with microencapsulated healing agent and shape memory alloy wires. Polymer, 50, 5533-5538. [Pg.325]

Self-healing is often used in a broader sense, to mean reconstruction of the entire polymer instead of just its surface. A relevant example here is a PDMS elastomer that contains microencapsulated PDMS resin and microencapsulated cross linker. If this type of PDMS is damaged, both capsules rupture and the newly formed elastomer mends the damaged area. [Pg.128]

The present work covers a variety of self-healing motifs, systems, and chemistries. The first example of a practical fully self-contained self-healing system based on microencapsulated dicyclopentadiene and Grubbs catalyst particles embedded in an epoxy matrix,) 16) formed the basis for further research on similar self-healing systems and thus forms the basis for the discussion presented herein. For all chemistries discussed, the efforts in compartmentalization of the reactants, evaluation of self-healing performance, and testing in relevant applications such as reinforced polymer composites and coatings are presented. [Pg.1031]

Fig. 1. Original microencapsulation-based self-healing system. Microencapsulated dicy-clopentadiene is embedded in an epoxy resin containing Grubbs catalyst which is capable of polymerizing the dicyclopentadiene. A propagating crack ruptures the microcapsules causing DCPD to be released into the crack plane where it comes in contact with and reacts with catalyst to form a polymer that bonds the crack hices and restores structural continuity. Fig. 1. Original microencapsulation-based self-healing system. Microencapsulated dicy-clopentadiene is embedded in an epoxy resin containing Grubbs catalyst which is capable of polymerizing the dicyclopentadiene. A propagating crack ruptures the microcapsules causing DCPD to be released into the crack plane where it comes in contact with and reacts with catalyst to form a polymer that bonds the crack hices and restores structural continuity.

See other pages where Microencapsulation, self-healing polymers is mentioned: [Pg.15]    [Pg.1102]    [Pg.233]    [Pg.215]    [Pg.216]    [Pg.1404]    [Pg.1404]    [Pg.12]    [Pg.286]    [Pg.256]    [Pg.1032]    [Pg.1050]   
See also in sourсe #XX -- [ Pg.2 , Pg.1031 ]




SEARCH



Microencapsulant

Microencapsules

Polymers microencapsulation

Self-healing

© 2024 chempedia.info