transformation products of tire rubber antioxidant 6ppd for sale
- Classification:Chemical Auxiliary Agent
- Purity:99.9%
- Type:Rubber additive antioxidant
- Appearance:Black Flake
- Certificate:COA, MSDS, TDS
- Application:Paper Chemicals, Rubber Auxiliary Agents
- Production Capacity:1000 Metric Tons per Month
- Package:20kg kraft bags,500kgs/pallet
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).
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.
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.
transformation products of tire rubber antioxidant 6ppd for sale,this study revealed that sunlight-induced transformation of 6ppd could be an important origin of 6ppd-q in aquatic environments, providing significant insights to the potentially underestimated ecological risks of 6ppd.
transformation products of tire rubber antioxidant 6ppd for sale
transformation products of tire rubber antioxidant 6ppd in heterogeneous gas-phase ozonation: identification and environmental occurrence zhao, haoqi nina hu, ximin
Best Price Rubber Antioxidant 6PPD CAS No.: 793-24-8,n-(1,3-Dimethylbutyl)-n-phenyl-p-phenylenediamine (6ppd) is a ubiquitous rubber antioxidant and antiozonant that can extend the service life of common rubber products and can be used as a thermal oxidation stabilizer for polyethylene, polypropylene and acrylic resins.
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.
6ppd in tire manufacturing ustma
ustma mobilizes a consortium of 16 tire manufacturers to conduct an alternatives analysis for 6ppdin tires after a decision by dtsc to act on ustma’s recommendation to list 6ppd in tires as a priority product under the state’s safer consumer products (scp) program.
Rubber Antiageing Antiage Antioxidant 4020/6PPD price,this study revealed that sunlight-induced transformation of 6ppd could be an important origin of 6ppd-q in aquatic environments, providing significant insights to the potentially underestimated ecological risks of 6ppd.
- What is the content of 6PPD in rubber?
- Typically, the content of 6-PPD in rubber materials ranges from 0.4% to 2% . During its production and use, 6-PPD can be transported to exposed surfaces and enter the environment. These antioxidants are highly reactive to ozone . 6-PPDQ is more stable than 6-PPD.
- 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 .
- Can 6PPD be removed from end-of-life tires?
- We introduce a decontamination strategy that removes 6PPD from end-of-life tires before it enters the broader ecosystem. We demonstrate the catalytic upgrade of 6PPD to safe chemicals and the valorization of crumb rubber to aromatics and carbon black using microwave-assisted pyrolysis. You have full access to this article via your institution.
- Can a new decontamination strategy be used for recycling end-of-life tire waste?
- Upcycling end-of-life tire waste is complex due to the recalcitrant nature of the toxic legacy additive, 6PPD. Here the authors present a new decontamination strategy that can isolate 6PPD, convert it to safe and valuable products, and valorize end-of-life tire waste.
