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Article Dans Une Revue International Journal of Biological Macromolecules Année : 2023

Use of lignin-based crude carbon dots as effective antioxidant for natural rubber

Wufan Zhao
  • Fonction : Auteur
Ante Li
  • Fonction : Auteur
Hang An
  • Fonction : Auteur
Chenxi Shen
  • Fonction : Auteur
Peng Yu
  • Fonction : Auteur
Xueliang Jiang
  • Fonction : Auteur
Runguo Wang
  • Fonction : Auteur
Liqun Zhang
  • Fonction : Auteur

Résumé

Rubber is widely recognized as an important material, whose irreplaceable applications range from damping materials to tires. Generally, rubber is vulnerable to oxidative degradation, leading to a deterioration in the material's performance. Therefore, antioxidants are often added to extend the service life of rubber. In this study, crude lignin-based carbon dots (CLCDs) were prepared by a simple hydrothermal treatment of lignin with H2O2 and triethylenetetramine. The thus prepared CLCDs exhibit excellent radical scavenging capability, and were incorporated into natural rubber with vinyl pyridine-styrene-butadiene terpolymer (VPR) as coupling agent. The results revealed that CLCDs could endow NR with excellent antioxidative performance. Interestingly, CLCDs even show superior antioxidant effect towards rubber compared to purified lignin-based carbon dots (PLCDs). This work provides a unique source of inspiration for the preparation of low-cost, highly effective CLCDs from plant biomass waste, most of lignin being used to produce steam and energy, with excellent antioxidant capability for rubber, which is beneficial for a green and sustainable world.
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Dates et versions

hal-04403479 , version 1 (18-01-2024)

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Citer

Wufan Zhao, Alain Dufresne, Ante Li, Hang An, Chenxi Shen, et al.. Use of lignin-based crude carbon dots as effective antioxidant for natural rubber. International Journal of Biological Macromolecules, 2023, 253, pp.126594. ⟨10.1016/j.ijbiomac.2023.126594⟩. ⟨hal-04403479⟩

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