Des scientifiques résolvent un mystère centenaire sur le caoutchouc renforcé

13 mai 2026

Rapporté par l'IA

Des chercheurs de l'université de Floride du Sud ont identifié le mécanisme qui permet aux particules de noir de carbone de renforcer le caoutchouc, résolvant ainsi une énigme scientifique vieille de près d'un siècle. Leurs simulations informatiques révèlent comment le matériau résiste à l'étirement en luttant efficacement contre lui-même.

L'équipe, dirigée par le professeur d'ingénierie David Simmons, a réalisé 1 500 simulations de dynamique moléculaire totalisant l'équivalent de 15 années de temps de calcul. En collaboration avec le chercheur postdoctoral Pierre Kawak et le doctorant Harshad Bhapkar, ils ont démontré que les particules de noir de carbone limitent l'amincissement du caoutchouc lorsqu'il est étiré. Cela force le matériau à augmenter de volume, ce qui accroît considérablement sa rigidité et sa résistance.

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