Article Dans Une Revue Chemistry Africa Année : 2023

Use of a Natural Clayey Soil from Burkina Faso to Reinforce Natural Rubber

Résumé

This study investigates whether a natural rubber (NR) can be filled with a raw clayey material from Diékui (DIE) in Burkina Faso to produce compound for bicycle inner tubes. Mineral characterization of DIE and of an imported commercial kaolin (REF) used by local factories showed that both contain mainly quartz and kaolinite, but REF also contains illite. NR/clay filler compounds were formulated by mixing the rubber and each of the fillers using a twin-roll mill. Vulcanisation parameters were determined, mechanical and physical properties (elongation at break, tensile modulus at 300% elongation, tensile and tear strengths, hardness) of the rubber compounds were evaluated. Mineralogical and microstructural properties of the compounds were also studied. Infrared spectra and scanning electron microscopy images of the compounds revealed better dispersion of DIE in the rubber. However, no intercalated or exfoliated structure was highlighted on the XRD spectra. Finally, physical and mechanical results were similar for NR/REF and NR/DIE compounds. These results indicate that DIE could be substituted for the imported mineral filler (REF) for the manufacture of bicycle inner tubes.

Domaines

Génie civil
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Dates et versions

hal-04132415 , version 1 (19-06-2023)

Identifiants

Citer

Lohami Valentin Landry Gnoumou, Younoussa Millogo, Jean-Emmanuel Aubert, Moussa Ouedraogo, Issiaka Sanou, et al.. Use of a Natural Clayey Soil from Burkina Faso to Reinforce Natural Rubber. Chemistry Africa, inPress, ⟨10.1007/s42250-023-00683-7⟩. ⟨hal-04132415⟩
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