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June 6, 2026Industrial Crops and ProductsOpen Access

Synergistic potentiation of foaming ability and flame retardancy in biodegradable poly (butylene adipate-co-terephthalate)/bamboo powder composites via aluminum hypophosphite

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Authors

X(Xinyu Zhang (14029)PYPucheng YuWYWentao Yang

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Overview

Randomized trial evaluates foaming and flame retardant properties in biodegradable composites, suggesting improved material safety.

Key Points

  • This study aims to improve the foaming ability and flame retardancy of PBAT/bamboo powder composites using aluminum hypophosphite.
  • Utilized supercritical carbon dioxide (scCO2) for foaming biodegradable PBAT composites.
  • Added varying amounts of aluminum hypophosphite (AHP) and evaluated properties including flame retardancy and foaming performance.
  • Conducted vertical burning tests (UL-94) and measured physical parameters like expansion ratio and cell density.
  • PBAT/BP foam with 30 wt% AHP achieved V-0 rating in UL-94 and limiting oxygen index (LOI) of 25.8%.
  • Expansion ratio reached 10.4, with a uniform microcellular structure size of 60.01 μm and cell density of 2.49 × 10^7 cells/cm^3.
  • Higher AHP concentrations compromised foaming performance and compression rebound but improved flame inhibition.

Cite This Study

(14029) et al. (2026) studied this question.

synapsesocial.com/papers/6a23b94671a5da9775e753dchttps://doi.org/10.1016/j.indcrop.2026.123581
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Cost‐Effective and Fully Biodegradable <scp>PBAT</scp> Composites: Integrating Natural Fillers and Chemical Foaming Techniques2025
  2. 2Combined Effect of Bridged 9,10‐Dihydro‐9‐Oxa‐10‐Phosphaphenanthrene‐10‐Oxide Derivatives and Cellulose on the Flame Retardancy and Thermal Decomposition of Poly(Butylene Adipate‐Co‐Terephthalate)2025
  3. 3Supercritical <scp>CO</scp> <sub>2</sub> Foaming of <scp>PBAT</scp> / <scp>TPEE</scp> Blends With Chain Extension: Toward Low‐Shrinkage, High‐Resilience and Thermal‐Insulating Biodegradable Foams2026
  4. 4Reactive Chain Extension and Nanoclay-Enabled Foaming of High-MFI PBAT for High-Expansion, Compostable Polymer Foams2026
  5. 5Effect of Chemical Foaming Process on the Cellular Structure Development and Correlation with the Mechanical and Physical Property of PBAT2024