Functionalized Mesoporous Silica Fire Retardant via Hierarchical Assembly for Improved Fire Retardancy of Unsaturated Polyester
Article
Article Title | Functionalized Mesoporous Silica Fire Retardant via Hierarchical Assembly for Improved Fire Retardancy of Unsaturated Polyester |
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ERA Journal ID | 211585 |
Article Category | Article |
Authors | Qiu, Xiaoqing, Li, Zhiwei, Chevali, Venkata, Song, Pingan, Li, Xiaohong and Zhang, Zhijun |
Journal Title | ACS Applied Polymer Materials |
Journal Citation | 5 (3), pp. 2203-2212 |
Number of Pages | 10 |
Year | 2023 |
Publisher | American Chemical Society |
Place of Publication | United States |
ISSN | 2637-6105 |
Digital Object Identifier (DOI) | https://doi.org/10.1021/acsapm.2c02195 |
Web Address (URL) | https://pubs.acs.org/doi/10.1021/acsapm.2c02195 |
Abstract | Unsaturated polyester (UP) has many important industrial applications, including transportation, building materials, and electrical insulation. However, UP resins are extremely flammable, thus restricting their real-world applications. Herein, we report a mesoporous silica-based ternary flame retardant (NF@SiO2-D) for UP by loading nickel ferrite and dimethyl methylphosphonate (DMMP) via hierarchical assembly. NF@SiO2-D acts as a fire extinguisher of UP through the combined effect of mesoporous silica, nickel ferrite, and DMMP. The peak and total heat release rates of the UP matrix decreased by 36.3% and 36.9%, respectively, after the incorporation of 10 phr NF@SiO2-D. More importantly, when NF nanoparticles were present, the smoke production of the UP matrix was reduced by 41.5% compared to the control samples without NF nanoparticles. In addition, 20 phr of NF@SiO2-D enabled the UP to achieve a self-extinguishing ability and a desired V-0 grade in the UL 94 test. The flame-retarding UP composites with NF nanoparticles also exhibited better thermal stability and Tg than the control samples. The resultant fire-retardant UP composites are anticipated to find more industrial applications. |
Keywords | mesoporous silica; nickel ferrite; DMMP; fire safety; unsaturated polyester |
Article Publishing Charge (APC) Funding | Other |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Henan University, China |
Luoyang Institute of Science and Technology, China | |
Centre for Future Materials | |
School of Agriculture and Environmental Science |
https://research.usq.edu.au/item/yy84x/functionalized-mesoporous-silica-fire-retardant-via-hierarchical-assembly-for-improved-fire-retardancy-of-unsaturated-polyester
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