export kenya 6ppd (4020) rubber antioxidant 6ppd for tyre
export kenya 6ppd (4020) rubber antioxidant 6ppd for tyre
export kenya 6ppd (4020) rubber antioxidant 6ppd for tyre
export kenya 6ppd (4020) rubber antioxidant 6ppd for tyre
export kenya 6ppd (4020) rubber antioxidant 6ppd for tyre
  • 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.
  • Are p phenylenediamine (PPD) antioxidants in recycled tire rubber products toxic?
  • Recently, roadway releases of N, N ′-substituted p -phenylenediamine (PPD) antioxidants and their transformation products (TPs) received significant attention due to the highly toxic 6PPD-quinone. However, the occurrence of PPDs and TPs in recycled tire rubber products remains uncharacterized.
  • Why is 6PPD important?
  • Globally the increasing demand for rubber tires leads to the extensive consumption of 6PPD up to millions of tons resulting in significant release of this compound from tire rubber to the environment (Rossomme et al., 2023).
  • What are 6PPD reactions with ozone?
  • 6PPD reactions with ozone generate numerous ubiquitous and potentially bioactive transformation products that can be detected in tire rubber particles and roadway environments.