Bioinspired, Highly Adhesive, Nanostructured Polymeric Coatings for Superhydrophobic Fire-Extinguishing Thermal Insulation Foam
Article
Article Title | Bioinspired, Highly Adhesive, Nanostructured Polymeric Coatings for Superhydrophobic Fire-Extinguishing Thermal Insulation Foam |
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ERA Journal ID | 35029 |
Article Category | Article |
Authors | Ma, Zhewen (Author), Liu, Xiaochen (Author), Xu, Xiaodong (Author), Liu, Lei (Author), Yu, Bin (Author), Maluk, Cristian (Author), Huang, Guobo (Author), Wang, Hao (Author) and Song, Pingan (Author) |
Journal Title | ACS Nano |
Journal Citation | 15 (7), pp. 11667-11680 |
Number of Pages | 14 |
Year | 2021 |
Publisher | American Chemical Society |
Place of Publication | United States |
ISSN | 1936-0851 |
1936-086X | |
Digital Object Identifier (DOI) | https://doi.org/10.1021/acsnano.1c02254 |
Web Address (URL) | https://pubs.acs.org/doi/10.1021/acsnano.1c02254 |
Abstract | Lightweight polymeric foam is highly attractive as thermal insulation materials for energy-saving buildings but is plagued by its inherent flammability. Fire-retardant coatings are suggested as an effective means to solve this problem. However, most of the existing fire-retardant coatings suffer from poor interfacial adhesion to polymeric foam during use. In nature, snails and tree frogs exhibit strong adhesion to a variety of surfaces by interfacial hydrogen-bonding and mechanical interlocking, respectively. Inspired by their adhesion mechanisms, we herein rationally design fire-retardant polymeric coatings with phase-separated micro/nanostructures via a facile radical copolymerization of hydroxyethyl acrylate (HEA) and sodium vinylsulfonate (VS). The resultant waterborne poly(VS-co-HEA) copolymers exhibit strong interfacial adhesion to rigid polyurethane (PU) foam and other substrates, better than most of the current adhesives because of the combination of interfacial hydrogen-bonding and mechanical interlocking. Besides a superhydrophobic feature, the poly(VS-co-HEA)-coated PU foam can self-extinguish a flame, exhibiting a desired V-0 rating during vertical burning and low heat and smoke release due to its high charring capability, which is superior to its previous counterparts. Moreover, the foam thermal insulation is well-preserved and agrees well with theoretical calculations. This work offers a facile biomimetic strategy for creating advanced adhesive fire-retardant polymeric coatings for many flammable substrates. |
Keywords | Energy-saving buildings; Fire retardant coating; Hydroxyethyl acrylate; Interfacial adhesions; Mechanical interlocking; Radical copolymerization; Theoretical calculations; Thermal insulation materials |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401605. Functional materials |
401602. Composite and hybrid materials | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Zhejiang A & F University, China |
Henan Normal University, China | |
University of Science and Technology of China, Hefei, China | |
University of Queensland | |
Taizhou University, China | |
Centre for Future Materials | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q6vvv/bioinspired-highly-adhesive-nanostructured-polymeric-coatings-for-superhydrophobic-fire-extinguishing-thermal-insulation-foam
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