widely used chemical rubber antioxidant ippd
- Classification:Chemical Auxiliary Agent
- Purity:98%
- Type:Antioxidant
- Appearance:Gray Purple or Purple Brown Granular
- Origin:China
- Application:Tire/Rubber industries
- Storage:Dry and Cooling Place
- Package:1000kgs/ pallet with film
the effect of antioxidant concentration of n-isopropyl-n,the purpose of this study is to compare the effect of anti-oxidants types ippd and tmq and mixing time of vulcanization of the physical properties, mechanical properties, microstructure and elemental composition of the synthesis of natural rubber compound.
N-Isopropyl-N'-phenyl-p-phenylenediamine (often abbreviated ippd) is an organic compound commonly used as an antiozonant in rubbers. like other p-phenylenediamine-based antiozonants it works by virtue of its low ionization energy, which allows it to react with ozone faster than ozone will react with rubber. [2]
widely used good price rubber antioxidant ippd
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...
on the dehydrogenation of n,n′-substituted p-phenylenediamine,using b3lyp/6-31g ∗ treatment, the optimal geometries, electronic structures and ir spectra of n-phenyl-n′-isopropyl-p-phenylenediamine antioxidant (ippd) and its doubly dehydrogenated oxidation products have been obtained.
department of ecology n-isopropyl-n’-phenyl-p- chemycal
executive summary: n-isopropyl-n'-phenyl-p-phenylenediamine ( ippd) is used as an antioxidant and stabilizer and is used to counteract the degradation of rubber.
amino antioxidants: a review of their environmental behavior,notably, ippd-q and 6ppd-q were consistently detected in e-waste dust, and significantly correlated with their corresponding precursors, i.e., ippd and 6ppd, suggesting that ppds can be converted to ppd-qs in the indoor environment (liang et al., 2022).
low-molecular-weight synthetic antioxidants: classification
therefore, in this review, we focus on the chemical and pharmaceutical profiles of 32 principal low-molecular-weight synthetic antioxidants based on the long-held antioxidant hypothesis.
n-isopropyl-n phenyl-p-phenylenediamine wiley online library,ozone and material fatigue are more important than its effects as an antioxidant. the main field of application for n-isopropylN'-phenyl-p-phenylenediamine is the tyre manufacturing sector.
n-isopropyl-n’-phenyl-p-phenylenediamine (ippd) cas n°:101 -72-4
ippd is a solid of low water solubility (~15 mg/l) and an octanol-water partition coefficient (log k ow) of 3.9. its atmospheric half-life is estimated to be between 23 and 54 minutes. it hydrolyses in water with half-lives between 2 and 11 hours depending on the water source.
recent progress in the rubber antioxidants Rubber Auxiliary Agent,we first give a brief introduction of the oxidation process and oxidation mechanism for rubbers. then, we present the strategies to improve the anti-oxidative efficiency of rubber antioxidants. after that, recent advances to minimize the blooming and migration of antioxidants are summarized.
- What is the function of antioxidant IPPD?
- Function mechanism of antioxidant IPPD ( R represents alkyl) According to Scheme 3, we can conclude that the 1 mol antioxidant IPPDs (molecular weight = 226) contain 2 mol labile hydrogens, each of which can scavenge 1 mol peroxy radicals to terminate 1 mol free radical chain reactions.
- What is the EC 50 level of PPD antioxidant DpPD?
- It should be noted that a specific PPD antioxidant DPPD exhibited an EC 50 level (0.02 mg/L) that was even lower than that of typical pesticide dichlofluanid (0.06 mg/L) .
- 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 ).
- Can antioxidant 2246 be grafted to SIO 2?
- Zhong et al. proposed a novel solid-phase method to graft the antioxidant 2246 on the surface of SiO 2 with the aid of a silane coupling agent . The as-prepared SiO 2 -s-2246 performed better than pristine antioxidant 2246 in protecting rubber from thermo-oxidative aging because of the elimination of the “blooming” defects.
