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DOE OSTI · 2263379

Flame retardant biogenic building insulation materials from hemp fiber

Jadhav, Porus Sunil [Univ. of Maryland, College Park, MD (United States)]·Sarkar, Arpita [Univ. of Maryland, College Park, MD (United States)] (ORCID:0000000173758793)·Zhu, Long [Univ. of Maryland, College Park, MD (United States)]·Ren, Shenqiang [Univ. of Maryland, College Park, MD (United States)] (ORCID:0000000299873316)
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Abstract

Biogenic thermal insulation materials are in high demand because of its carbon-sequestration nature. However, high flammability, moisture condensation, and relatively high thermal conductivity of biogenic material are major concerns for sustainable building applications. In this study, we report the fire-retardant cellulose xerogel insulation nanocomposites derived from hemp fiber recycling and silica xerogel, in which the boric acid treatment improves its fire retardancy. The as-prepared materials show a low thermal conductivity of 31.3 mW/m K, high flexural modulus of 665 MPa, hydrophobicity with the water contact angle of 115°, and fire retardancy with 30% weight loss over a period of burning time 10 min. Overall, this work provides an effective method for the synthesis of fire-retardant biogenic thermal insulation materials and shows a promising way for next-generation bio-based insulation materials.

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36 MATERIALS SCIENCEPolymer Sciencebiogenicfire retardancyhemp fiberthermal insulation materialsxerogel composites

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Jadhav, Porus Sunil [Univ. of Maryland, College Park, MD (United States)], Sarkar, Arpita [Univ. of Maryland, College Park, MD (United States)] (ORCID:0000000173758793), Zhu, Long [Univ. of Maryland, College Park, MD (United States)], Ren, Shenqiang [Univ. of Maryland, College Park, MD (United States)] (ORCID:0000000299873316). 2023-12-27. Flame retardant biogenic building insulation materials from hemp fiber. https://doi.org/10.1002/app.55137

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