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Elaboration and Characterization Of Eco-Materials Made From Recycled Or Bio-Based Raw Materials

2017; Elsevier BV; Volume: 139; Linguagem: Inglês

10.1016/j.egypro.2017.11.239

1876-6102

L.M. Thieblesson, Florence Collet, Sylvie Prétot, Christophe Lanos, Honoré Conand Kouakou, O. Boffoué,

Natural Fiber Reinforced Composites

This work test the feasibility and characterize the thermohygric properties of composite materials, realized with eco-friendly raw materials and designed to make suspended ceilings or interior partition walls. Several raw materials are considered: recycled paper (granules or cellulose wadding) and wood fibers. Aggregates or fibers are bonded with organic or mineral binder. One of the binder considered is starch, due to its availability in Ivory Coast (cassava flour). The calcium sulfate hemihydrate is also used for comparison. The density of the produced composites ranges from 400 to 1200 kg/m3 depending on formulation. The thermal conductivity increases proportionally with the density and ranges from 0.09 to 0.5 W/(m.K). The characterization of hygric behavior is based on the measurement of moisture buffer value (MBV) [1]. The hydric performances of the composites made of mineral binder goes from moderate (MBV around 1 g/(m².%RH)) to excellent (MBV > 2 g/(m².%RH)). The moisture buffer value of the paper granules -starch composite is also excellent (MBV > 2 g/(m².%RH))