dc.contributor.author	Pham, ST	en_AU
dc.contributor.author	Tieu, AK	en_AU
dc.contributor.author	Sencadas, V	en_AU
dc.contributor.author	Joseph, P	en_AU
dc.contributor.author	Arun, M	en_AU
dc.contributor.author	Cortie, DL	en_AU
dc.date.accessioned	2024-02-27T23:09:39Z	en_AU
dc.date.available	2024-02-27T23:09:39Z	en_AU
dc.date.issued	2022-09-07	en_AU
dc.date.statistics	2024-02-28	en_AU
dc.description.abstract	Improving the fire-resistant efficiency of silicone-based polymeric coatings is important in the building industry and electrical utilities. In this study, the water-containing hybrid calcium carbonate (CaCO3)-silica (SiO2) colloidal capsule has been developed and optimized as an inorganic flame-retardant additive. This capsule exhibits excellent thermal stability up to 1000 °C with a remaining intact hollow spherical structure. When used as an inorganic filler at 15 wt %, it not only reduces the potential fire hazards by over 44% (i.e., the sumHRC reduced from 112.00 J/g K to 62.00 J/g K) but also improves the heat-barrier efficiency by over 30% (i.e., the temperature at the steady state reduced from 350 to 360 °C to below 250 °C) of the silicone-based polymeric coatings. In addition, the capsule-polymer composite coating exhibits excellent ductility which can withstand heat-induced mechanical stresses and prevent crack propagation under radiative heating conditions. The fire-resistant mechanism of the colloidal capsule is related strongly to the encapsulated water core and the reactions between SiO2 and CaCO3 at elevated temperatures. They not only contribute to a cooling effect on the flammable pyrolysis gases but also induce the insulative effect to the resulted char during combustion. The significant advances in this study will have a high impact in customizing the functional inorganic additives for a better design of the flame-retardant composite coating. © 2022 The Authors. CC-BY 4.0	en_AU
dc.description.sponsorship	The study is funded by the Australian Research Council (ARC) Discovery Project DP190103455 and Linkage Project LP160101871. The authors acknowledge the use of the JEOL 6490 SEM at the UOW Electron Microscopy Centre.	en_AU
dc.identifier.citation	ham, S. T., Tieu, A. K., Sencadas, V., Joseph, P., Arun, M., & Cortie, D. (2022). Thermoresponsive hybrid colloidal capsules as an inorganic additive for fire-resistant silicone-based coatings. Industrial & Engineering Chemistry Research, 61(35), 13104-13116. doi:10.1021/acs.iecr.2c01967	en_AU
dc.identifier.issn	0888-5885	en_AU
dc.identifier.issn	1520-5045	en_AU
dc.identifier.issue	35	en_AU
dc.identifier.journaltitle	Industrial & Engineering Chemistry Research	en_AU
dc.identifier.pagination	13104-13116	en_AU
dc.identifier.uri	http://dx.doi.org/10.1021/acs.iecr.2c01967	en_AU
dc.identifier.uri	https://apo.ansto.gov.au/handle/10238/15458	en_AU
dc.identifier.volume	61	en_AU
dc.language	English	en_AU
dc.language.iso	en	en_AU
dc.publisher	American Chemical Society	en_AU
dc.subject	Colloids	en_AU
dc.subject	Fire resistance	en_AU
dc.subject	Silicon	en_AU
dc.subject	Coatings	en_AU
dc.subject	Calcium carbonates	en_AU
dc.subject	Additives	en_AU
dc.subject	Heat	en_AU
dc.subject	Flammability	en_AU
dc.subject	Composite materials	en_AU
dc.subject	Combustion	en_AU
dc.title	Thermoresponsive hybrid colloidal capsules as an inorganic additive for fire-resistant silicone-based coatings	en_AU
dc.type	Journal Article	en_AU

Thermoresponsive hybrid colloidal capsules as an inorganic additive for fire-resistant silicone-based coatings

Files

Original bundle

License bundle

Collections