Ma, Zhewen and Liu, Xiaochen and Xu, Xiaodong and Liu, Lei and Yu, Bin and Maluk, Cristian and Huang, Guobo and Wang, Hao and Song, Pingan 
ORCID: https://orcid.org/0000-0003-1082-652X
(2021)
Bioinspired, Highly Adhesive, Nanostructured Polymeric Coatings for Superhydrophobic Fire-Extinguishing Thermal Insulation Foam.
ACS Nano, 15 (7).
pp. 11667-11680.
ISSN 1936-0851
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.
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| Item Type: | Article (Commonwealth Reporting Category C) |
|---|---|
| Refereed: | Yes |
| Item Status: | Live Archive |
| Faculty/School / Institute/Centre: | Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -) |
| Faculty/School / Institute/Centre: | Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -) |
| Date Deposited: | 29 Nov 2021 02:16 |
| Last Modified: | 01 Dec 2021 01:59 |
| Uncontrolled Keywords: | Energy-saving buildings; Fire retardant coating; Hydroxyethyl acrylate; Interfacial adhesions; Mechanical interlocking; Radical copolymerization; Theoretical calculations; Thermal insulation materials |
| Fields of Research (2008): | 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials 09 Engineering > 0912 Materials Engineering > 091205 Functional Materials |
| Fields of Research (2020): | 40 ENGINEERING > 4016 Materials engineering > 401605 Functional materials 40 ENGINEERING > 4016 Materials engineering > 401602 Composite and hybrid materials |
| Socio-Economic Objectives (2008): | E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences |
| Socio-Economic Objectives (2020): | 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280105 Expanding knowledge in the chemical sciences 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering |
| Identification Number or DOI: | https://doi.org/10.1021/acsnano.1c02254 |
| URI: | http://eprints.usq.edu.au/id/eprint/44066 |
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