ghana manufacturing antioxidant 4020 rubber additives
ghana manufacturing antioxidant 4020 rubber additives
ghana manufacturing antioxidant 4020 rubber additives
ghana manufacturing antioxidant 4020 rubber additives
ghana manufacturing antioxidant 4020 rubber additives
  • What are rubber antioxidants?
  • Rubber antioxidants are defined as substances that could delay the aging of polymer compounds and prolong the service life of rubber products by inhibiting oxidation, heat, or light radiation . To date, the annual global consumption of rubber antioxidants is over 700,000 tons, accounting for about 40% of the total amount of rubber additives.
  • How does antioxidant 4020 affect m of nr/4020 composites?
  • Also, the ΔM for NR/4020 composites decreases when increasing the loading of antioxidant 4020, which is most probably because antioxidant 4020 is a small molecule compound, which acts as a plasticizer and therefore decrease the torque. Similar phenomena were observed in the NR/CCDs composites.
  • How does a rubber matrix affect antioxidative performance?
  • Obviously, the solubility/dispersity of the antioxidant within the rubber matrix is a key factor in determining the antioxidative performance, and the antioxidative efficiency of antioxidant increases with the dispersion state within the rubber matrix, owing to higher specific surface area available for termination of radicals.
  • Which antioxidants are used in rubber vulcanization?
  • The amine and phenolic antioxidants are the most widely used rubber antioxidants (Fig. 1 b and c). Generally, the phenolic antioxidants have poor antioxidative efficiency (compared to amine antioxidants) and they can delay vulcanization, but they cause little discoloration problems.