Self-healing epoxy via epoxy–amine chemistry in dual hollow glass bubbles

Zhang, H.; Wang, Pengfei; Yang, Jinglei

doi:10.1016/j.compscitech.2014.01.009

Cited by 93 publications

(47 citation statements)

References 41 publications

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“…A mirror fracture surface with little hackle markings is found for the pure epoxy. However, many crack tails are 19.3 Enhanced and Recoverable Fracture Toughness found for the self-healing epoxy composites, especially for the small GBs [59]. In addition, the higher healing agent carrier content gives rise to more crack tails on the fracture surface, leading to the increase of the fracture toughness.…”

Section: Enhanced and Recoverable Fracture Toughness Of Two-part Selfmentioning

confidence: 98%

Multifunctional polymeric composites with wear-resistant, toughening, and self-healing features

Khun

Zhang

Sun

et al. 2015

Multifunctionality of Polymer Composites

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Section: Enhanced and Recoverable Fracture Toughness Of Two-part Selfmentioning

confidence: 98%

Multifunctional polymeric composites with wear-resistant, toughening, and self-healing features

Khun

Zhang

Sun

et al. 2015

Multifunctionality of Polymer Composites

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“…[68]. Etched HGB in micrometer range (diameter 66.9±8.2 !m, and shell thickness 0.79±0.41 !m) were used to encapsulate both epoxy resin and the amine hardener [69]. The healing agents inside the HGB survived from the manufacturing process and following 24 hour of cure.…”

Section: Hollow Glass Fibers (Hgf) and Hollow Glass Bubbles (Hgb) Asmentioning

confidence: 99%

“…Different methods were adopted to encapsulate the healing agents inside these polymer fibers including coelectrospinning [56][57][58], emulsion electrospinning [56] and emulsion solution blowing [56]. DCPD enwrapped into polyacrylonitrile (PAN) using coelectrospin- HGBs Loaded epoxy/loaded amine 62% at 50°C [69] ning to form core-shell DCPD/PAN nanofibers [56,57]. The electrospinning was carried out in a labmade coaxial needle setup for generating the coreshell jet [59,60] by supplying a solution of 10 wt% PAN in dimethyl formamide (DMF) as the outer jet (shell) and the solution of 10 wt% DCPD in DMF as the inner jet (core).…”

Section: Polymer Fibers As Self-healing Agent Containersmentioning

confidence: 99%

‘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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“…For the moment, the embedment of microcapsules containing healing agent seems to be a more promising prospect among all the methods because of the ease of manufacture and material integration. Nowadays, some curing agents for epoxy, like modified amine [5][6], polythiol [7][8], and polyetheramine [9] have been encapsulated and adopted to achieve the homogeneous healing in epoxy. Compared with epoxy itself, the microencapsulation of suitable hardener for curing epoxy is more difficult because the traditional amine hardener is highly active at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Self-healing Epoxy with Epoxy-amine Dual-capsule Healing System

Wang¹,

Zhu²,

Li³

2017

Proceedings of the 3rd Annual International Conference on Advanced Material Engineering (AME 2017)

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Abstract.A new type of epoxy composite with self-healing functionality was successfully developed in this work. Self-healing is achieved via embedded microcapsules containing diglycidyl 1,2-cyclohexanedicarboxylate(DGCHD)and microcapsules containing modified aliphatic amine(HB-1618) hardener. This paper also investigated the preparation and properties of curing agent microcapsule which was prepared by the solvent evaporation method. Recovery of impact strength is assessed through izod notched impact testing for impact specimens. It was found that the content of both microcapsules largely influenced the healing efficiency at a certain range. As a result, the optimal filling contents of epoxy-containing microcapsules and hardener-containing microcapsules embedded in the epoxy matrix are 6 wt. % and 9 wt. %, offering a ~65.6% healing efficiency. Scanning electron microscope (SEM) photos of fracture surface before and after healing process proved that the healing process was successfully realized.

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Self-healing epoxy via epoxy–amine chemistry in dual hollow glass bubbles

Cited by 93 publications

References 41 publications

Multifunctional polymeric composites with wear-resistant, toughening, and self-healing features

Multifunctional polymeric composites with wear-resistant, toughening, and self-healing features

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

Self-healing Epoxy with Epoxy-amine Dual-capsule Healing System

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