Design, construction and application of bio-inspired flame retardant nanocoatings for fire protection and warning
PhD by Publication
Title | Design, construction and application of bio-inspired flame retardant nanocoatings for fire protection and warning |
---|---|
Type | PhD by Publication |
Authors | Cao, Cheng-Fei |
Supervisor | |
1. First | Prof Hao Wang |
2. Second | Prof Pingan Song |
Institution of Origin | University of Southern Queensland |
Qualification Name | Doctor of Philosophy |
Number of Pages | 226 |
Year | 2023 |
Publisher | University of Southern Queensland |
Place of Publication | Australia |
Digital Object Identifier (DOI) | https://doi.org/10.26192/z5721 |
Abstract | The development of human history is accompanied by the acquaintance, control, and utilization of fire. However, once fire is out of control, it may induce fire disasters and lead to massive casualties and irreparable property losses and negatively impact the global environment. Therefore, fire safety and prevention are of paramount importance in modern society. At present, constructing flame-retardant coating is regarded as one of the effective approaches for improving flame retardant performance of combustible materials and reducing fire hazards due to its numerous advantages. In the past few years, many efforts have been made to construct flame-retardant coatings on different types of flammable material substrates. However, it remains a huge challenge to fabricate desirable coating systems with excellent comprehensive performance. In addition, most flame-retardant coatings only have a single flame shielding function, which has limited their further application in fire safety and protection. Therefore, it is attractive and meaningful to design and construct multifunctional flame-retardant coatings and extend their application. In this Ph.D. project, a series of high performance smart flame retardant hybrid networks with fire shielding and fire warning capacities were fabricated by combining t wo dimensional 2D ) nanomaterial i.e. e., graphene oxide ( GO ) nanosheets with functionalized fillers or molecules based on rational bionic design strategies. Based on characterizations and tests , t he mechanical, thermal, and flame retardant properties as well as fire shielding and fire alarm performance s of the achieved flame retardant coating s ystems were systematical ly studied . Therefore , th e related mechanisms were also investigat ed and clarified. The main research contents are as follows: 1) GO nanosheets is one of desirable candidate for constructing flame retardant nanocoating. However, GO coating network usually displays poor thermal /structural stability , mechanical and flame retardant properties when used alone. Herin, the bio mass derivatives i.e., 1D phosphorylated cellulose nanofibrils P CNFs ) and tannic acid ( TA ) molecules were employed to combine 2D GO nanosheets for fabricating the high performance GO based hybrid networks Benefiting from the multiple synergistic interactions in the GO/TA/P CNFs network, the optimized hybrid network exhibited improved mechanical properti es (tensile strength and Young’s modulus up to ~ 132 MPa and ~7 GPa), good structural stability in harsh aqueous environments and excellent fire shielding capacity for combustible PU foam materials In addition, by utilizing ii the flame/thermal the flame/thermal--induced electric transition induced electric transition behavior of GO networkbehavior of GO network, , it can endow the it can endow the hybrid hybrid networknetwork with with an an ultrasensitive fire alarm function (e.g., ultrafast flame alarm time of < 1 s)ultrasensitive fire alarm function (e.g., ultrafast flame alarm time of < 1 s). |
Keywords | graphene oxide; multifunctional nanocoating ; flame retardant polymers; fire warning sensors; mechanical analysis; fire safety and protection |
Related Output | |
Has part | Bio-inspired, sustainable and mechanically robust graphene oxide-based hybrid networks for efficient fire protection and warning |
Has part | Fire Intumescent, High-Temperature Resistant, Mechanically Flexible Graphene Oxide Network for Exceptional Fire Shielding and Ultra-Fast Fire Warning |
Has part | Biomimetic, Mechanically Strong Supramolecular Nanosystem Enabling Solvent Resistance, Reliable Fire Protection and Ultralong Fire Warning |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author/creator. |
Byline Affiliations | Academic Registrar's Office |
Centre for Future Materials (Research) | |
School of Engineering |
https://research.usq.edu.au/item/z5721/design-construction-and-application-of-bio-inspired-flame-retardant-nanocoatings-for-fire-protection-and-warning
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