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Titre: | Study of rheological characteristics and mechanical strength properties of natural rubber vulcanizates varying the type and content of carbon black |
Auteur(s): | Kherbouche, Ahlem Benidir, A. Bezzazi, B. |
Mots-clés: | Natural rubber NR Carbon black CB N220 N550 Cure characteristics Tensile strength |
Date de publication: | 2023 |
Editeur: | ICAT |
Collection/Numéro: | Journal of Applied Research and Technology /Vol. 21 (2023);pp. 1050-1056 |
Résumé: | This paper presents a study about the influence of the size and content of two types of
carbon black N220 and N550 with loading of 10–100 phr on the properties of the vulcanized natural
rubber (NR). The mechanical characteristics such as the tensile strength, the tensile modulus, the
elongation at break, the hardness, the abrasion resistance, and rheological properties of NR reinforced
with carbon black were investigated. By analyzing the results of an N220 reinforced NR, the
reinforcement gives improvement in tensile strengths when fillers are added up to 70 phr. However,
and by referring to elongation at break, a fall of product elasticity is observed. The increase of filler
loading results a decrease in rheological properties; optimum cure time, scorch time, cure rate index
(CRI). Nevertheless, the N220 rubber compound exhibits slightly higher hardness than those registered
for the N550 compounds. Regarding the mechanical properties under tensile stress, the engineer's
findings are comparative for all the samples of the study. However, the rubber compound filled N220
or N550 gives comparable results on mechanical properties. |
URI/URL: | http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/14897 |
Collection(s) : | Publications Internationales
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