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- W3204495114 endingPage "132809" @default.
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- W3204495114 abstract "• Core-shell structured ZIF-67@cobalt coordination compounds were prepared by a simple method. • Interpenetrating network composite aerogels were prepared by lyophilization molding method. • The aerogels exhibited outstanding fire safety and thermal insulation properties. Biomass materials are considered to be excellent candidates to replace petroleum-based materials, but inherent flammability limits their applications. In this work, biomass aerogel (BA) was prepared by freeze-drying method from sodium alginate (SA) and polyvinyl alcohol (PVA). To improve fire safety of BAs, a core–shell structured ZIF-67@Cobalt coordination compound was successfully synthesized, which was surface functionalized by 3,5-diamino-1,2,4-triazole and 9,10-dihydro-9-oxo-10-phospho-diphenyl-10-oxide (DOPO), named as DOPO-NH 2 -ZIF-67. The addition of DOPO-NH 2- ZIF-67 (2 wt%) outstandingly improved fire safety of BA, in contrast to neat BA, peak heat release rate, peak smoke production rate, and total smoke production were reduced by 66.6%, 85.10%, and 72.76%, respectively. Furthermore, the incorporation of ZIF-67 and its derivatives has no adverse effect on the thermal insulation performance of BA composites and significantly improved their compressive strength from 0.27 MPa to 1.76 MPa. Preparation of core–shell structured ZIFs rich in active groups furnishes a conceivable way to synthesize an effective flame retardant, and a prospective method for the fabrication of aerogel insulation materials with green and economical additive-free technology is proposed." @default.
- W3204495114 created "2021-10-11" @default.
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- W3204495114 date "2022-02-01" @default.
- W3204495114 modified "2023-10-10" @default.
- W3204495114 title "Surface modification of core–shell structured ZIF-67@Cobalt coordination compound to improve the fire safety of biomass aerogel insulation materials" @default.
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- W3204495114 doi "https://doi.org/10.1016/j.cej.2021.132809" @default.
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