p-phenylenediamines and p-phenylenediamine quinone
- Classification:Chemical Auxiliary Agent
- Purity:96.0% MIN
- Type:Anti-aging agent
- Appearance:Grey purple to purple brown
- Environmental Protection:Yes
- Application:Rubber Auxiliary Agents
- Production Capacity:10000 Kilogram/Kilograms per Day
- Package:As the client's request
transformation products of tire rubber antioxidant 6ppd for sale,6ppd, a tire rubber antioxidant, poses substantial ecological risks because it can form a highly toxic quinone transformation product (tp), 6ppd-quinone (6ppd), during exposure to gas-phase ozone. important data gaps exist regarding the structures, reaction mechanisms, and environmental occurrence of tps from 6ppd ozonation.
N(1,3-dimethyl-butyl)-N'-phenyl-p-phenylenediamine (ppds) are widely used in the rubber industry to effectively prevent oxidation of rubber by ozone, inhibit aging of rubber, and improve product application performance and service life (cataldo, 2018, cataldo, 2019, cataldo et al., 2015). several broadly applied ppds and their corresponding quinone
rubber antioxidants and their transformation products
the tps of rubber antioxidants have been observed in some studies under environmental conditions. as one of the widespread rubber antioxidants, amine antioxidants (ppds: tmppd, dppd, 6ppd, and 6ppdtz) could react with o 3 (in parts per billion volume levels) in the environment and produce ppd-quinone [31].
environmental profiles, hazard identification for sale,n-(1,3-dimethylbutyl)-n'-phenyl-p-phenylenediamine (6ppd) is commonly used in rubber compounds as antioxidants to protect against degradation from heat, oxygen, and ozone exposure. this practice extends the lifespan of rubber products, including tires, by preventing cracking, aging, and deterioration.
new evidence of rubber-derived quinones in water, air for sale
N(1,3-dimethyl-butyl)-N'-phenyl-p-phenylenediamine (ppds) are manufactured and widely used as antioxidants and antiozonants in the industry for production of tires, belts, hoses, and cables. the chemicals provide superior capacity for protection of rubber and its products against heat degradation, breaking down, and ozone cracking.
rubber antioxidants and chemical 6ppd,antioxidants are prevalently used during rubber production to improve rubber performance, delay aging, and extend service life. however, recent studies have revealed that their transformation products (tps) could adversely affect environmental organisms and even lead to environmental events, which led to great public concern about environmental
improvements of lanthanum complex on the thermal-oxidative
mixed antioxidants composed of antioxidant ippd and novel rare earth lanthanum complex were used as an additive to prepare natural rubber (nr) samples. the variations of macro-properties, surface characterizations, and internal groups were investigated by mechanical testing, x-ray photoelectron spectroscopy, and thermogravimetric analysis
recent progress in the rubber antioxidants Rubber Auxiliary Agent,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.
new evidence of rubber-derived quinones in water, air for sale
our results demonstrated that five rubber-derived quinones, including 6ppd-quinone, existed in the environment as the transformation products of ppd antioxidants. such findings greatly expand the existing knowledge of ppd-derived quinones and thus may provide opening clues and promote further investigations on their environmental fate and
widely used chemical rubber antioxidant ippd,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]
- Do antioxidants and their TPS increase environmental risk awareness of rubber products?
- To our knowledge, this is the first review on antioxidants and their TPs in the environment, which may elevate the environmental risk awareness of rubber products and their TPs in the near future.
- Do Antioxidants improve the performance of rubber?
- Conclusions and Future Perspectives Antioxidants are widely used to improve the performance of rubber, and their production, especially 6PPD, is annually maintained at a high level .
- Are rubber antioxidants toxic?
- (2) The toxic effects of rubber antioxidants and their TPs may be evaluated via computational toxicology combined with traditional toxicological methods, including studies of short-term and sub-lethal exposure effects, the potential for mortality, mechanism of effect, and interaction with environmental variables.
- 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.
