1
|
Ayadi M, Segovia C, Baffoun A, Zouari R, Fierro V, Celzard A, Msahli S, Brosse N. Influence of Anatomy, Microstructure, and Composition of Natural Fibers on the Performance of Thermal Insulation Panels. ACS OMEGA 2023; 8:48673-48688. [PMID: 38162742 PMCID: PMC10753721 DOI: 10.1021/acsomega.3c02481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 09/07/2023] [Indexed: 01/03/2024]
Abstract
The growing interest in environmentally friendly materials is leading to a re-evaluation of natural fibers for industrial applications in order to meet sustainability and low-cost objectives, especially for thermal insulation of buildings. This paper deals with the chemical and physical characterization of fibers extracted from seagrass (Posidonia oceanica) and alfa grass (Stipa tenacissima) for a possible substitution of synthetic materials for thermal insulation. Hemp (Cannabis sativa), a fiber broadly used, was also studied for comparison. The parameters characterized include porosity, thermal degradation, elemental composition, skeletal and particle density of the fibers as well as investigation of the thermal conductivity of fiber-based panels. Several technologies were involved in investigating these parameters, including mercury intrusion, thermogravimetric analysis, fluorescence spectroscopy, and fluid pycnometry. The fibers showed a degradation temperature between 316 and 340 °C for Posidonia, between 292 and 326 °C for alfa, and between 300 and 336 °C for hemp fibers. A high porosity allied with a reduced pore size was revealed for Posidonia (77%, 0.54 μm) compared to hemp (75%, 0.61 μm) and alfa (57%, 2.1 μm) raw fibers, leading to lower thermal conductivity values for the nonwoven panels based on Posidonia (0.0356-0.0392 W/m.K) compared to alfa (0.0365-0.0397 W/m.K) and hemp (0.0387-0.0427 W/m.K). Bulk density, operating temperature, and humidity conditions have been shown to be determining factors for the thermal performance of the panels.
Collapse
Affiliation(s)
- Melek Ayadi
- Centre
d’Essais Textile Lorrain CETELOR, F88000 Epinal, France
- Laboratoire
de Génie Textile, Université
de Monastir, 5070 Monastir, Tunisie
- LERMAB,
Université de Lorraine, GP4W, F54000 Nancy, France
| | - César Segovia
- Centre
d’Essais Textile Lorrain CETELOR, F88000 Epinal, France
| | - Ayda Baffoun
- Textile
Materials and Process Research Unit, University
of Monastir, 5019 Monastir, Tunisia
| | - Riadh Zouari
- Laboratoire
de Génie Textile, Université
de Monastir, 5070 Monastir, Tunisie
| | - Vanessa Fierro
- Université
de Lorraine, CNRS, IJL, F88000 Epinal, France
| | - Alain Celzard
- Université
de Lorraine, CNRS, IJL, F88000 Epinal, France
- Institut
Universitaire de France (IUF), F75005 Paris, France
| | - Slah Msahli
- Laboratoire
de Génie Textile, Université
de Monastir, 5070 Monastir, Tunisie
| | - Nicolas Brosse
- LERMAB,
Université de Lorraine, GP4W, F54000 Nancy, France
| |
Collapse
|
2
|
Recupido F, Lama GC, Ammendola M, Bossa FDL, Minigher A, Campaner P, Morena AG, Tzanov T, Ornelas M, Barros A, Gomes F, Bouça V, Malgueiro R, Sanchez M, Martinez E, Sorrentino L, Boggioni L, Perucca M, Anegalla S, Marzella R, Moimare P, Verdolotti L. Rigid composite bio-based polyurethane foams: From synthesis to LCA analysis. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|