Enhancement of flame-retardancy and self-extinguishing in cellulose paper by bio-based phytic acid chelate-mediated interfacial assembly of Mg(OH)₂.
- 2025-09
- International journal of biological macromolecules 323
- PubMed: 40885366
- DOI: 10.1016/j.ijbiomac.2025.147199
Study Design
- Methods
- Layer-by-layer assembly to fabricate biomass-derived MH-P@Mn and MH-P@Ni core-shell flame retardants, applied to cellulose paper
Cellulose-based paper, widely used in cultural heritage preservation and art, suffers from inherent flammability. Conventional phosphorus-based flame retardants, derived from depleting phosphate ores, necessitate sustainable alternatives. This study introduces an innovative layer-by-layer assembly strategy to fabricate biomass-derived MH-P@Mn and MH-P@Ni core-shell flame retardants. Phytic acid, a biogenic phosphorus source, chelates metal ions (Mn2+/Ni2+) to form stable coatings on magnesium hydroxide. When applied to cellulose paper, these materials exhibit superior flame-retardant performance compared to commercial phosphorus-based counterparts, particularly at medium-to-high loadings. Mechanistically, they enhance inert gas emission during pyrolysis, delaying thermal degradation. The mild, rapid synthesis enables development of eco-friendly, multifunctional cellulose paper with enhanced fire resistance and sustainable phosphorus utilization, promising diverse applications.
Research Insights
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