Tailoring biogenic straw insulation from additive manufacturing
Journal Article
·
· Applied Materials Today
- State Univ. of New York at Buffalo, NY (United States); OSTI
- State Univ. of New York at Buffalo, NY (United States)
In the pursuit of carbon-storing materials that could help accomplish high levels of building sustainability, wheat straw has emerged as a promising alternative to fossil fuel-based building materials. Straw is 100% biodegradable and abundant agricultural waste used in the construction 400 years ago, and it has been reported to have the lowest embodied carbon when measured against other typical insulating materials. Here, in this study, we report additive manufacturing of carbon-sequestration insulation panel materials by upcycling cellulose fibrils from wheat straw. Cellulose obtained from alkaline and 2,2,6,6-tetramethylpiperidine-1-oxyl radical-mediated oxidation shows thermal conductivity of 0.036 W m-1 K-1, alongside elastic and flexural modulus of 900 MPa and 502 MPa, respectively. In addition, an in-situ hydrophobic treatment in the cellulose-based insulation panels is achieved with an average water contact angle of 133.7° Furthermore, the extrusion-based additive manufacturing of a 3D-printable ink obtained by mixing the cellulose and silica aerogel precursor is accomplished, with the printed material exhibiting structural integrity, thus showing great potential towards the development of state-of-the-art, sustainable materials for carbon-sequestration building applications.
- Research Organization:
- State Univ. of New York (SUNY), Albany, NY (United States)
- Sponsoring Organization:
- USDOE Advanced Research Projects Agency - Energy (ARPA-E)
- Grant/Contract Number:
- AR0001630
- OSTI ID:
- 2422398
- Alternate ID(s):
- OSTI ID: 1975413
- Journal Information:
- Applied Materials Today, Journal Name: Applied Materials Today Journal Issue: C Vol. 32; ISSN 2352-9407
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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