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Biorenewable Polyelectrolyte Nanocoating for Flame-Retardant Cotton-Based Paper.

ABSTRACT: Cotton-based raw paper, made of 100% cellulose, is used to make humidity-sensing, cottonid for bio-architecture applications. Despite its renewability and excellent mechanical properties, it is inherently flammable. In an effort to reduce its flammability, thin films of fully renewable and environmentally benign polyelectrolytes, chitosan (CH) and phytic acid (PA), were deposited on raw paper via layer-by-layer (LbL) assembly. Only four bilayers (BL) of the CH/PA coating are required to achieve self-extinguishing behavior, with a 69% reduction in peak heat release rate measured by microscale combustion calorimetry. These results demonstrate that this renewable intumescent LbL-assembled film provides an effective flame-retardant treatment for these environmentally friendly, climate-adaptive construction materials and could potentially be used to protect many cellulosic materials.

SUBMITTER: Rodriguez-Melendez D

PROVIDER: S-EPMC9476518 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature

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Biorenewable Polyelectrolyte Nanocoating for Flame-Retardant Cotton-Based Paper.

Rodriguez-Melendez Danixa D Langhansl Matthias M Helmbrecht Alexander A Palen Bethany B Zollfrank Cordt C Grunlan Jaime C JC

ACS omega 20220901 36

Cotton-based raw paper, made of 100% cellulose, is used to make humidity-sensing, cottonid for bio-architecture applications. Despite its renewability and excellent mechanical properties, it is inherently flammable. In an effort to reduce its flammability, thin films of fully renewable and environmentally benign polyelectrolytes, chitosan (CH) and phytic acid (PA), were deposited on raw paper via layer-by-layer (LbL) assembly. Only four bilayers (BL) of the CH/PA coating are required to achieve ...[more]

PMID: 36120026

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