Good Dispersibility Rubber Antioxidant 6PPD CAS793-24-8
- Classification:Chemical Auxiliary Agent
- Purity:96%
- Type:Rubber chemicals
- Appearance:Light brown or white powder or granule
- Content:95%
- Application:Shoe Soles, auto tyre
- Storage:Dry
- Package:1kg/polybag, 25kg/kraftbag
big discount rubber antioxidant 6ppd for tyre,by investigating this phenomenon, we identified a highly toxic quinone transformation product of n-(1,3-dimethylbutyl)-n'-phenyl-p-phenylenediamine (6ppd), a globally ubiquitous tire rubber antioxidant.
n-(1,3-dimethylbutyl)N'-phenyl-p-phenylenediamine (6ppd) is a ubiquitous rubber antioxidant and antiozonant that extends the lifetime of common rubber products, such as those...
transformation products of tire rubber antioxidant 6ppd for sale
6ppd reactions with ozone generate numerous ubiquitous and potentially bioactive transformation products that can be detected in tire rubber particles and roadway environments.
chemical characteristics, leaching, and stability of the,aqueous leaching simulations from tire tread wear particles (twps) indicated short term release of ∼5.2 μg 6ppd per gram twp over 6 h under flow-through conditions. aqueous stability tests observed a slight-to-moderate loss of 6ppd over 47 days (26 ± 3% loss) for ph 5, 7 and 9.
transformation product formation upon heterogeneous ozonation
by screening environmental samples, nine 6ppd-derived tps were detected within roadway runoff. the data confirm that when tire rubber antioxidants react with ozone, as intended, they form and release various tps to surrounding environments.
environmental fate of tire-rubber related pollutants 6ppd,To improve tire durability, the antioxidant n-(1,3-dimethylbutyl)-n-phenyl-p-phenylenediamine (6PPD) is used in rubber, but when exposed to oxidants such as ozone (O3), it is converted into toxic 6PPD quinone (6PPD-Q), causing ecological problems.
rubber antioxidants and their transformation products
recently, it was reported that the rubber antioxidant n-(1,3-dimethylbutyl)N'-phenyl-p-phenylenediamine (6ppd or antioxidant 4020), a typical tire rubber antioxidant, could enter the surrounding environment together with tire-wear particles (twps).
transformation products of tire rubber antioxidant 6ppd for sale,abstract: 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.
6ppd: its role in tire manufacturing and environmental impact
the antioxidant action of 6ppd involves neutralizing free radicals, which can damage rubber compounds. free radicals, generated by environmental stressors like uv radiation and pollution, initiate a chain reaction that breaks down polymer chains, compromising tire integrity. 6ppd halts this degradation by donating hydrogen atoms to stabilize
environmental impact of tire wear: the 6ppd-q Rubber Antioxidant,the compound 6ppd (short for 1,4-benzenediamine, n-(1,3-dimethylbutyl)- 21 n’-phenyl-; cas #793-24-8) is an antioxidant and antiozonant that prevents degradation of rubber compounds caused by their exposure to oxygen, ozone and temperature fluctuations. 6ppd is widely used in the tire manufacturing industry to help tires resist degradation
- 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.
- What solvent is used to remove 6PPD from EOL tires?
- Through batch extraction analysis and computational calculations, acetone is the best suited solvent for 6PPD removal from EOL tires of those tested. Furthermore, the batch extraction kinetics follow a first-order profile.
- Which phosphorus flame retardant produces the highest amount of rubber antioxidants?
- The production and consumption of rubber antioxidants have been increasing globally in recent years and are much higher than the consumption of phosphorus flame retardants . 6-PPD produces the highest amount of rubber antioxidants compared to other antioxidants .
- Why are P-phenylenediamines added to tire rubber?
- Rubber-derived tire chemicals (RDCs) are an important source of environmental pollutants in urban cities owing to the increasing demand and global production of private cars. p-phenylenediamines (PPDs), a class of antioxidants, are added to tire rubber to prevent cracking and thermal oxidative degradation and to extend service life .
