Synthesis of calcium carbonate microcapsules as self-healing containers

Hettiarachchi, N. M.; Silva, Rangika Thilan De; Mantilaka, M.M.M.G.P.G.; Pasbakhsh, Pooria; Silva, K. M. Nalin De; Amaratunga, G.A.J.

doi:10.1039/c9ra03804c

Cited by 11 publications

(4 citation statements)

References 46 publications

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“…In the long run, while current self-healing polymers prolong the service life, there is a demand to use biodegradable coatings and biodegradable encapsulation materials which have recently become an interest in scholarly research. [68]…”

Section: Advantages and Limitations Of Capsular-based Self-healing Po...mentioning

confidence: 99%

An Overview of Self‐Healable Polymers and Recent Advances in the Field

Choufi

Mustapha

Tehrani‐Bagha

et al. 2022

Macromol. Rapid Commun.

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The search for materials with better performance, longer service life, lower environmental impact, and lower overall cost is at the forefront of polymer science and material engineering. This has led to the development of self‐healing polymers with a range of healing mechanisms including capsular‐based, vascular, and intrinsic self‐healing polymers. The development of self‐healable systems has been inspired by the healing of biological systems such as skin wound healing and broken bone reconstruction. The goal of using self‐healing polymers in various applications is to extend the service life of polymers without the need for replacement or human intervention especially in restricted access areas such as underwater/underground piping where inspection, intervention, and maintenance are very difficult. Through an industrial and scholarly lens, this paper provides: a) an overview of self‐healing polymers; b) classification of different self‐healing polymers and polymer‐based composites; c) mechanical, thermal, and electrical analysis characterization; d) applications in coating, composites, and electronics; e) modeling and simulation; and f) recent development in the past 20 years. This review highlights the importance of healable polymers for an economically and environmentally sustainable future, the most recent advances in the field, and current limitations in fabrication, manufacturing, and performance.

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Section: Advantages and Limitations Of Capsular-based Self-healing Po...mentioning

confidence: 99%

An Overview of Self‐Healable Polymers and Recent Advances in the Field

Choufi

Mustapha

Tehrani‐Bagha

et al. 2022

Macromol. Rapid Commun.

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“…The CaCO 3 microcontainers were synthesized according to a previous study [41]. Briefly, Na 2 CO 3 (3.5 g, 33.0 mmol) and SDS (0.5 g, 1.8 mmol) were fully dissolved in 100 mL deionized water.…”

Section: Synthesis Of the Microcontainers And Loading Of Aphenmentioning

confidence: 99%

Smart protective coatings with self‐sensing and active corrosion protection dual functionality from pH-sensitive calcium carbonate microcontainers

Liu

Zhang

et al. 2022

Corrosion Science

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“…Due to the amount of volatile organic compounds (VOCs) and the harmful environmental effects they impart, the use of waterborne coatings has been an attractive area of study in recent years [8]. In waterborne coatings, acrylics are the most often used binder resin [9].…”

Section: Introductionmentioning

confidence: 99%

Improved Corrosion Protection of Acrylic Waterborne Coating by Doping with Microencapsulated Corrosion Inhibitors

2021

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Herein, a waterborne acrylic coating doped with pH sensitive colophony microcapsules containing corrosion inhibitors was studied on carbon steel plates. The changes in the physical properties of the coatings were studied. The microcapsule coating specimens maintained more noble Ecorr values compared to the control in deionized water and simulated concrete pore solutions with −513 and −531 mVSCE, respectively. Additionally, the microcapsule polarization results for both pH 12.6 and 6.2 electrolyte solutions showed lower icorr values of 1.20 × 10−6 and 3.24 × 10−6 A·cm−2, respectively, compared to the control sample (1.15 × 10−5 and 4.21 × 10−5 A·cm−2). Therefore, the microcapsule coating provided more protection from chloride attack on the substrate as well as the deleterious effects of low pH on carbon steel. The electrochemical impedance spectroscopy analysis corroborated the DC polarization results, showing increased corrosion resistance for the microcapsule coated specimens compared to the control. Moreover, the Rpore and Rct are much higher than the control, indicating the protection of the inhibitors. The Ceff,dl also shows lower values for the microcapsule coating than the control, showing a more protective and less doped double layer.

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Synthesis of calcium carbonate microcapsules as self-healing containers

Abstract: Healing agent, epoxy encapsulated calcium carbonate microcapsules were prepared using a facile method as a self-healing composite for protective metal coatings.

Cited by 11 publications

References 46 publications

An Overview of Self‐Healable Polymers and Recent Advances in the Field

An Overview of Self‐Healable Polymers and Recent Advances in the Field

Smart protective coatings with self‐sensing and active corrosion protection dual functionality from pH-sensitive calcium carbonate microcontainers

Improved Corrosion Protection of Acrylic Waterborne Coating by Doping with Microencapsulated Corrosion Inhibitors

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