Development of sunflower-based insulation materials coated with glycerol esters to prevent microbial growth
| Autor: | Verdier, Thomas, Montibus, Mathilde, Balthazar, L., Magniont, Camille, Evon, Philippe, Bertron, Alexandra |
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| Přispěvatelé: | Laboratoire Matériaux et Durabilité des constructions (LMDC), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT), Institut Technologique Forêt Cellulose Bois-construction Ameublement (FCBA), Chimie Agro-Industrielle (CAI), Institut National de la Recherche Agronomique (INRA)-Ecole nationale supérieure des ingénieurs en arts chimiques et technologiques (ENSIACET), Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT), Institut Technologique Forêt Cellulose Bois-construction Ameublement - FCBA (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Institut National de la Recherche Agronomique - INRA (FRANCE), Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Laboratoire de Chimie Agro-Industrielle - LCA (Toulouse, France) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
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| Zdroj: | Proceeding of the 3rd International Conference on Bio-Based Building Materials (ICBBM 2019) 3rd International Conference on Bio-Based Building Materials (ICBBM 2019) 3rd International Conference on Bio-Based Building Materials (ICBBM 2019), Jun 2019, Belfast, United Kingdom. pp.50-56 |
| Popis: | It is now well known that, under specific environmental conditions, building materials may be the target of microbial proliferation. Their growth leads to the deterioration of both materials and indoor air quality (indirectly induced by the release of airborne microbial contaminants, including spores, fragments, toxins, mVOC, etc.). As bio-based building materials usually contain cellulose or derivatives, they are likely to be much more sensitive to such degradations. However, very few studies have shown precise hygrometric conditions that allow microbial growth and spread on this type of material. Glycerol esters are valuable by-products of agroindustry. Previous works have highlighted their significant antimicrobial effect. They are commonly used in the food industry as antimicrobial agents. They could be used as well to protect bio-based materials from microbial colonization. It would be an eco-friendly alternative, consistent with human health, to the classic ways of protecting bio-based materials against microorganisms. This study is included in a project that aims to (i) develop insulation materials from sunflower stalk and (ii) to study the antimicrobial efficiency of glycerol esters for the protection of such bio-based materials from microbial proliferation.Two types of insulation bio-based materials were designed from sunflower stalk particles. A “light” type was casted from pith and a “denser” one was casted from extruded bark, i.e. the depithed stalk. Physical, thermal and hygroscopic properties of the insulating panels (“light” type) were assessed (density, thermal conductivity, and vapor sorption isotherm). Optimum inhibitory concentrations of glycerol esters on two fungal strains were evaluated. Academic Journal of Civil Engineering, Vol 37 No 2 (2019): Special Issue - ICBBM 2019 |
| Databáze: | OpenAIRE |
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