rubber auxiliary agent 6ppd with good stability in zambia
rubber auxiliary agent 6ppd with good stability in zambia
rubber auxiliary agent 6ppd with good stability in zambia
rubber auxiliary agent 6ppd with good stability in zambia
rubber auxiliary agent 6ppd with good stability in zambia
  • Are there alternatives to 6PPD as a rubber antioxidant?
  • Nevertheless, conclusive studies identifying superior alternatives to 6PPD as a rubber antioxidant remain scarce in the current literature. Urbanization has resulted in an increase in surface runoff, a phenomenon that plays a pivotal role in the transportation of chemicals originating from tire wear into aquatic environments.
  • What is 6PPD used for?
  • 6PPD is an organic chemical widely used as stabilising additive (or antidegradant) in rubbers, such as NR, SBR and BR; all of which are common in vehicle tires. [ 1 ] Although it is an effective antioxidant it is primarily used because of its excellent antiozonant performance. It is one of several antiozonants based around p -phenylenediamine.
  • How stable is 6ppd-q?
  • 6PPD-Q demonstrates very low solubility but remarkable stability, enabling it to leach at a high rate of up to 0.0027 ± 0.0005 min −1 over a 6-hour leaching test. This characteristic facilitates its migration from TRWPs into roadway runoff, particularly during storm events (Hu et al., 2023).
  • Does 6PPD ozonation pose environmental risks?
  • 6PPD, a tire rubber antioxidant, poses substantial ecological risks because it can form a highly toxic quinone transformation product (TP), 6PPD-quinone (6PPDQ), during exposure to gas-phase ozone. Important data gaps exist regarding the structures, reaction mechanisms, and environmental occurrence of TPs from 6PPD ozonation.