Solvent-Promoted Self-Healing Epoxy Materials

Caruso, Mary M.; Delafuente, David A.; Ho, Victor; Sottos, Nancy R.; Moore, Jeffrey S.; White, Scott R.

doi:10.1021/ma701992z

Cited by 279 publications

(212 citation statements)

References 34 publications

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“…Organic solvents encapsulated polymer capsules were prepared by researchers. Chlorobenzene was encapsulated in PUF shell using in situ polymerization method with an average diameter of 160±20 !m [19]. In an advanced attempt, co-encapsulation of epoxy monomer with solvents in PUF shells were done by dissolving epoxy resins in solvents before adding to the emulsion mixture [19,20].…”

Section: Polymer Capsules As Self-healing Agent Containers 21 Prepamentioning

confidence: 99%

“…Chlorobenzene was encapsulated in PUF shell using in situ polymerization method with an average diameter of 160±20 !m [19]. In an advanced attempt, co-encapsulation of epoxy monomer with solvents in PUF shells were done by dissolving epoxy resins in solvents before adding to the emulsion mixture [19,20]. Drying oil encapsulated microcapsules, specifically designed for self-healing epoxy coatings, were also generated by in situ polymerization [21].…”

Section: Polymer Capsules As Self-healing Agent Containers 21 Prepamentioning

confidence: 99%

“…The limitations of DCPD/Grubbs catalyst based self-healing system includes catalyst unavailability, cost, environmental toxicity, instability, and difficult materials processing could be eliminated by an economical and simple way of using encapsulated solvents to recover the virgin properties of epoxy system [19]. Chlorobenzene loaded PUF microcapsules were incorporated into the epoxy matrix.…”

Section: Polymer Capsules In Epoxy Compositesmentioning

confidence: 99%

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‘Containers’ for self-healing epoxy composites and coating: Trends and advances

Vijayan¹,

Al-Maadeed²

2016

Express Polym. Lett.

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Abstract.The introduction of self-healing functionality into epoxy matrix is an important and challenging topic. Various micro/nano containers loaded self-healing agents are developed and incorporated into epoxy matrix to impart self-healing ability. The current report reviews the major findings in the area of self-healing epoxy composites and coatings with special emphasis on these containers. The preparation and use of polymer micro/nano capsules, polymer fibers, hollow glass fibers/bubbles, inorganic nanotubes, inorganic meso-and nano-porous materials, carbon nanotubes etc. as self-healing containers are outlined. The nature of the container and its response to the external stimulations greatly influence the self-healing performance. The self-healing mechanism associated with each type of container and the role of container parameters on self-healing performance of self-healing epoxy systems are reviewed. Comparison of the efficiency offered by different types of containers is introduced. Finally, the selection of containers to develop cost effective and green self-healing systems are mentioned.

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Section: Polymer Capsules As Self-healing Agent Containers 21 Prepamentioning

confidence: 99%

Section: Polymer Capsules As Self-healing Agent Containers 21 Prepamentioning

confidence: 99%

Section: Polymer Capsules In Epoxy Compositesmentioning

confidence: 99%

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‘Containers’ for self-healing epoxy composites and coating: Trends and advances

Vijayan¹,

Al-Maadeed²

2016

Express Polym. Lett.

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“…Small spherical microcapsules enable healing agent to be dispersed throughout matrix easily, and then releases healing agent to the crack triggered by the mechanical stimulus and bond the crack. Many materials can be used as healing agents, such as dicyclopentadiene [2], epoxy resins [3,4], solvents [5,6] and so on. Caruso proposes solvent such as chlorobenzene, phenyl acetate ethyl or phenylacetate as healing agent, and healing mechanism involves solvent-induced swelling and polymeric chain entanglement.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Microcapsule Filled with Ethyl Phenyl Acetate and Its Self-healing Application

Ma¹,

Zhang²,

Zhao³

et al. 2015

Proceedings of the 2015 2nd International Workshop on Materials Engineering and Computer Sciences

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Abstract. Inspired by biological systems, self-healing materials were achieved by incorporating microcapsules into matrix. Urea-formaldehyde microcapsules filled with EPA were prepared by in situ polymerization method. Surface morphology, size distribution, chemical structure, and thermal analysis of microcapsules were analyzed. Self-healing composites were prepared by adding microcapsules to epoxy resin. Results show that healing efficiency was dependent on the microcapsule concentration. Fracture toughness could be fully restored when the microcapsule concentration was 10%. Finally, microcapsules can be raptured by crack and solvents were release to crack region confirmed by SEM.

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“…An additional potential problem is the fact that the crack will be healed by a new material, having different (mechanical) properties than the matrix material, leading to undesirable stress concentrations upon reloading. More recently Caruso et al [Caruso 2007] demonstrated self-healing in thermosetting epoxy resin by using a solvent as the encapsulated phase. This resulted in a significant healing efficiency of ca.…”

Section: Introductionmentioning

confidence: 99%

Self‐Healing in Nanoparticle‐Reinforced Polymers and other Polymer Systems

Picken

Mookhoek

Fischer

et al. 2010

Optimization of Polymer Nanocomposite Properties

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This chapter aims at combining new insights in the field of (liquid encapsulated) self healing polymer systems as well as nanoparticle reinforced polymers to set the direction for the development of nanoparticle reinforced self healing polymers. In the case of self healing polymers the strategy is to minimise the volume fraction encapsulated healing agent for a desired healing performance. In the case of nanoparticle reinforced polymers the challenge is to maximise the mechanical property improvement for a certain fraction of nanoparticles.For both systems the property to be optimised, i.e. the healing potential or the strengthening effect, is mathematically shown to depend on the aspect ratio of the added ingredient as well as its volume fraction. The chapter ends with a first exploration of the use of nanoparticle reinforcement to get attractive repetitive self healing behaviour in a polymer system still meeting minimal mechanical properties.

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Solvent-Promoted Self-Healing Epoxy Materials

Cited by 279 publications

References 34 publications

‘Containers’ for self-healing epoxy composites and coating: Trends and advances

‘Containers’ for self-healing epoxy composites and coating: Trends and advances

Preparation and Characterization of Microcapsule Filled with Ethyl Phenyl Acetate and Its Self-healing Application

Self‐Healing in Nanoparticle‐Reinforced Polymers and other Polymer Systems

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