A critical appraisal of the potential of self healing polymeric coatings

Garcia, Santiago J.; Fischer, Hartmut; Zwaag, Sybrand van der

doi:10.1016/j.porgcoat.2011.06.016

Cited by 232 publications

(120 citation statements)

References 88 publications

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“…A list of excellent articles can be referred to for the reviews of inhibitor-containing self-healing anticorrosive coatings. [145][146][147][148] Zheng et al proposed an ideal model of multiple hybrid anticorrosive coatings which consisted of inhibitor-doped primer and superhydrophobic topcoat (Fig. 21).…”

Section: Inhibitor-containing Superhydrophobic Coatingsmentioning

confidence: 99%

Superhydrophobic surfaces for corrosion protection: a review of recent progresses and future directions

et al. 2015

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Due to their superior water-repelling effects, superhydrophobic surfaces have received increasing attention as a promising solution to corrosion of metallic materials. The present article introduces the fundamental theories behind superhydrophobicity followed by a comprehensive review of the recent progresses of this rapidly growing field over the past 5 years. A critical discussion over anticorrosion mechanisms of superhydrophobic surfaces is also provided. For many realistic applications, future efforts are pressingly demanded to prolong the corrosion resistance of these superhydrophobic surfaces. To this end, several important strategies and examples in designing stable, selfhealable, or inhibitor-loaded superhydrophobic surfaces are discussed.

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Section: Inhibitor-containing Superhydrophobic Coatingsmentioning

confidence: 99%

Superhydrophobic surfaces for corrosion protection: a review of recent progresses and future directions

et al. 2015

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“…properties are yet to be developed (1,4,5). To do so the role of the polymer architecture is crucial for balancing healing and mechanical properties (6).…”

Section: Introductionmentioning

confidence: 99%

Effect of the Dianhydride/Branched Diamine Ratio on the Architecture and Room Temperature Healing Behavior of Polyetherimides

Susa

Bose

Grande

et al. 2016

ACS Appl. Mater. Interfaces

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Traditional polyetherimides (PEIs) are commonly synthesized from an aromatic diamine and an aromatic dianhydride (e.g. 3,4'-oxydianiline (ODA) and 4,4'-oxydiphtalic anhydride (ODPA)) leading to the imide linkage and outstanding chemical, thermal and mechanical properties yet lacking any self-healing functionality. In this work, we have replaced the traditional aromatic diamine by a branched aliphatic fatty dimer diamine (DD1).This led to a whole family of self-healing polymers not containing reversible chemical bonds, capable of healing at (near) room temperature yet maintaining very high elastomeric-like mechanical properties (up to 6 MPa stress and 570% strain at break). In this work, we present the effect of the DD1/ODPA ratio on the general performance and healing behavior of a room temperature healing polyetherimide. A dedicated analysis suggests that healing proceeds in three steps: (i) an initial adhesive step leading to the formation of a relatively weak interface; (ii) a second step at long healing times leading to the formation of an interphase with different properties than the bulk material and (iii) disappearance of the damaged zone leading to full healing. We argue that the fast interfacial adhesive step is due to van der Waals interactions of long dangling alkyl chains followed by an interphase formation due to polymer chain interdiffusion. An increase in DD1 ratio leads to an increase in the healing kinetics and displacement shift of the first healing step towards lower temperatures. An excess of DD1 leads to the crosslinking of the polymer thereby restricting the necessary mobility for the interphase formation and limiting the self-healing behavior. The results here presented offer a new route for the development of room temperature self-healing thermoplastic elastomers with improved mechanical properties using fatty dimer diamines.

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“…1 Since the emergence of the field of self-healing polymers several concepts using different reversible groups such as H-bonding, disulfides, Diels-Alder chemistry, and metalorganic ligands have attracted significant growing attention. [2][3][4][5][6] While self-healing repair is not intrinsically restricted to that of mechanical performance, 7 most of the published studies using intrinsic healing focus on the restoration of localized macroscale damages involving the creation of new interfaces (e.g. cracks or scratches) and the subsequent loss of stiffness and strength.…”

Section: Introductionmentioning

confidence: 99%

Monitoring Network and Interfacial Healing Processes by Broadband Dielectric Spectroscopy: A Case Study on Natural Rubber

Hernández

Grande

Zwaag

et al. 2016

ACS Appl. Mater. Interfaces

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Broadband dielectric spectroscopy (BDS) is introduced as a new and powerful technique to monitor network and macroscale damage healing in an elastomer. For the proof of concept a partially cured sulfur-cured natural rubber (NR) containing reversible disulfides as the healing moiety was employed. The forms of damage healed and monitored were an invisible damage in the rubber network due to multiple straining and an imposed macroscopic crack. The relaxation times of pristine, damaged and healed samples were determined and fitted to the HavriliakNegami equation to obtain the characteristic polymer parameters. It is shown that seemingly full mechanical healing occurred regardless the type of damage, while BDS demonstrates that the polymer architecture in the healed material differs from that in the original one. These results represent a step forward in the understanding of damage and healing processes in intrinsic selfhealing polymer systems with prospective applications such as coatings, tires, seals and gaskets.

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A critical appraisal of the potential of self healing polymeric coatings

Cited by 232 publications

References 88 publications

Superhydrophobic surfaces for corrosion protection: a review of recent progresses and future directions

Superhydrophobic surfaces for corrosion protection: a review of recent progresses and future directions

Effect of the Dianhydride/Branched Diamine Ratio on the Architecture and Room Temperature Healing Behavior of Polyetherimides

Monitoring Network and Interfacial Healing Processes by Broadband Dielectric Spectroscopy: A Case Study on Natural Rubber

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