In this study, sodium alginate (SA) aerogel cross-linked with Ca was selected as the basic skeleton to construct a lightweight, flame retardant, and thermal insulating composite aerogel via modification with melamine and phytic acid. The resulting aerogel, SA-1.0 MP, achieved a thermal conductivity as low as 0.0379 W/(m·K). Compared to pristine SA aerogel, SA-1.0 MP demonstrated improved fire resistance, evidenced by a substantial increase in the limiting oxygen index (LOI) from 21.5% to 48.8% and a V-0 rating in the UL-94 test. Furthermore, a synergistic mechanism was proposed to explain its remarkable flame-retardant capability.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11479020 | PMC |
| http://dx.doi.org/10.3390/polym16192814 | DOI Listing |
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