algeria chemical antioxidant ippd with low cost
algeria chemical antioxidant ippd with low cost
algeria chemical antioxidant ippd with low cost
algeria chemical antioxidant ippd with low cost
algeria chemical antioxidant ippd with low cost
  • Do substituted para phenylenediamine (PPD) antioxidants affect the environment?
  • Substituted para -phenylenediamine (PPD) antioxidants have been extensively used to retard oxidative degradation of tire rubber and were found to pervade multiple environmental compartments. However, there is a paucity of research on the environmental occurrences of their transformation products.
  • Why should I use 6PPD instead of ozone?
  • This can be beneficial to the tire, as ozone attacks the tire surface and blooming therefore moves the antiozonant to where it is most needed, however this also increases the leaching of IPPD into the environment. Many tire producers have moved to using 6PPD instead, as this migrates more slowly.
  • Which compound has the highest antioxidant levels in Guangzhou & Taiyuan?
  • The same trend was also observed in its parent compound, 6PPD, which showed the highest proportion among these antioxidants in Guangzhou (46%), with a median level of 1820 pg/m 3, while that in Taiyuan was only 20%, with a median value of 81.0 pg/m 3 ( Table 1 ).
  • Does hydrogen peroxide decomposition improve antioxidative efficiency?
  • Overall, The synergistic effect between the groups of supplying proton (hindered phenol and urethane) and the groups of hydrogen peroxide decomposition (thioether) significantly improved the antioxidative efficiency.