ArticleScientific reports2026
Insight on the impact of Acacia nilotica leaves extract on the characteristics of natural and synthetic rubber composites.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Molecular mechanisms of thermo-oxidative stabilization in antioxidant-modified polyisoprene: bridging DFT calculations with macroscopic performance.Journal of molecular modeling · 2026Article
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5 authors.
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Abstract
The purpose of this study is to assess the extract of Acacia nilotica leaves as a sustainable natural antioxidant for natural rubber (NR) and styrene-butadiene rubber (SBR) composites. The Acacia extract was incorporated to NR and SBR at concentrations from 0.5 to 2 phr, and its effectiveness was compared to that of commercial antioxidant polymerized 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ). Rubber compositions were evaluated for chemical interactions and dispersion using FTIR and FESEM, and curing behavior was realized by rheometric studies. Physico-mechanical characteristics were assessed prior to and following thermo-oxidative aging at 90°Cfor different periods (2, 4, 6, and 7 days). The findings show that in both rubber matrices, theAcacia extract significantly improves aging resistance. While greater loadings (≥ 1 phr) negatively impacted initial strength without further improving aging resistance in comparison to TMQ. NR composites demonstrated an optimal antioxidant performance at 0.5 phr, offering superior retention of tensile strength during aging. At ideal concentrations of 0.5-1 phr, the extract dramatically increased tensile strength and elongation at break in SBR composites, exceeding TMQ in preventing excessive modulus expansion during aging. These results validate the potential of Acacia extractas an environmentally friendly antioxidant for rubber applications, especially in automotive, sealing, and vibration-damping components where improved durability and sustainable material solutions are needed.
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