Facile Fabrication of Dual Functional Graphene Oxide Microcapsules Carrying Corrosion Inhibitor and Encapsulating Self-Healing Agent

Dual functional graphene oxide (GO) microcapsules were fabricated through self-assembly in Pickering emulsions, carrying corrosion inhibitor benzotriazole (BTA) on the microcapsule shells and encapsulating a self-healing agent epoxy monomer. The formation of the GO microcapsules was assisted by the...

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Main Authors: Jing Li, Zhenglin Tao, Jincan Cui, Shuling Shen, Hanxun Qiu
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/14/19/4067
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author Jing Li
Zhenglin Tao
Jincan Cui
Shuling Shen
Hanxun Qiu
author_facet Jing Li
Zhenglin Tao
Jincan Cui
Shuling Shen
Hanxun Qiu
author_sort Jing Li
collection DOAJ
description Dual functional graphene oxide (GO) microcapsules were fabricated through self-assembly in Pickering emulsions, carrying corrosion inhibitor benzotriazole (BTA) on the microcapsule shells and encapsulating a self-healing agent epoxy monomer. The formation of the GO microcapsules was assisted by the interaction between BTA and GO, which provided robust encapsulation for the epoxy monomer. The loading capacity of BTA and epoxy monomer reached 90.5%. The addition of the GO microcapsules simultaneously promoted the corrosion protection and self-healing properties of the waterborne epoxy composite coatings. The healing efficiency of the composite coatings reached over 99.7% when the content of the microcapsules was 10 wt%. Meanwhile, the corrosion current density of the intact coatings was decreased for around 50 times.
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spelling doaj.art-2529c863f1294f8c8c10a8cba77e52512023-11-23T21:33:42ZengMDPI AGPolymers2073-43602022-09-011419406710.3390/polym14194067Facile Fabrication of Dual Functional Graphene Oxide Microcapsules Carrying Corrosion Inhibitor and Encapsulating Self-Healing AgentJing Li0Zhenglin Tao1Jincan Cui2Shuling Shen3Hanxun Qiu4School of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, ChinaSchool of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, ChinaSchool of Mechanical Engineering, Nantong University, No. 9 Seyuan Road, Nantong 226019, ChinaSchool of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, ChinaSchool of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, ChinaDual functional graphene oxide (GO) microcapsules were fabricated through self-assembly in Pickering emulsions, carrying corrosion inhibitor benzotriazole (BTA) on the microcapsule shells and encapsulating a self-healing agent epoxy monomer. The formation of the GO microcapsules was assisted by the interaction between BTA and GO, which provided robust encapsulation for the epoxy monomer. The loading capacity of BTA and epoxy monomer reached 90.5%. The addition of the GO microcapsules simultaneously promoted the corrosion protection and self-healing properties of the waterborne epoxy composite coatings. The healing efficiency of the composite coatings reached over 99.7% when the content of the microcapsules was 10 wt%. Meanwhile, the corrosion current density of the intact coatings was decreased for around 50 times.https://www.mdpi.com/2073-4360/14/19/4067composite coatingsmicrocapsulesgraphene oxidecorrosion protectionself-healing
spellingShingle Jing Li
Zhenglin Tao
Jincan Cui
Shuling Shen
Hanxun Qiu
Facile Fabrication of Dual Functional Graphene Oxide Microcapsules Carrying Corrosion Inhibitor and Encapsulating Self-Healing Agent
Polymers
composite coatings
microcapsules
graphene oxide
corrosion protection
self-healing
title Facile Fabrication of Dual Functional Graphene Oxide Microcapsules Carrying Corrosion Inhibitor and Encapsulating Self-Healing Agent
title_full Facile Fabrication of Dual Functional Graphene Oxide Microcapsules Carrying Corrosion Inhibitor and Encapsulating Self-Healing Agent
title_fullStr Facile Fabrication of Dual Functional Graphene Oxide Microcapsules Carrying Corrosion Inhibitor and Encapsulating Self-Healing Agent
title_full_unstemmed Facile Fabrication of Dual Functional Graphene Oxide Microcapsules Carrying Corrosion Inhibitor and Encapsulating Self-Healing Agent
title_short Facile Fabrication of Dual Functional Graphene Oxide Microcapsules Carrying Corrosion Inhibitor and Encapsulating Self-Healing Agent
title_sort facile fabrication of dual functional graphene oxide microcapsules carrying corrosion inhibitor and encapsulating self healing agent
topic composite coatings
microcapsules
graphene oxide
corrosion protection
self-healing
url https://www.mdpi.com/2073-4360/14/19/4067
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