transformation products of tire rubber antioxidant 6ppd for sale
- Classification:Chemical Auxiliary Agent
- Purity:96.9%
- Type:Rubber additive antioxidant
- Appearance:Amber to Brown Flake
- Grade:Superior Class
- Application:used in manufacture of tires
- Production Capacity:100 Metric Ton/Metric Tons per Month
- Package:25kg plastic woven bag
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.
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.
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.
saving coho salmon: alternatives for 6ppd in tire manufacturing,6ppd is a critical tire rubber additive due to its high-performing antidegradant prop-erties. due to its demonstrated ecotoxicity, we are aiming to identify chemical alternatives to 6ppd that not only uphold technical functionality, but also minimize human health and environmental hazards.
chemical 6ppd antioxidant chemical induces acute
the compound, called 6ppd-quinone, is an oxidation product of an additive intended to prevent damage to tire rubber from ozone. measurements from road runoff and immediate receiving waters show concentrations of 6ppd-quinone high enough to account for the acute toxicity events.
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.
tire-derived contaminants 6ppd and 6ppd-q: analysis, sample
one such chemical is 6ppd-quinone (6ppd-q), a transformation product of the tire antioxidant 6ppd. in urban stormwater runoff 6ppd-q can exceed acute toxicity thresholds for several salmonid species and is being implicated in significant coho salmon losses in the pacific northwest.
6ppd: its role in tire manufacturing and environmental impact,incorporating 6ppd into the rubber matrix imparts resilience, shielding rubber from oxidative damage that leads to cracking and brittleness. manufacturers use 6ppd for its protective properties and its ability to maintain tire flexibility and elasticity.
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.
a tire industry perspective on 6ppd replacement: the challenge,to act like 6ppd, a drop-in substitute must: function as antiozonant and antioxidant to help prevent the degradation and cracking of rubber compounds (unsaturated elastomers) by protecting against ozone attack, oxidation, and heat aging.
- 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.
- Is 6PPD in tires a priority product?
- DTSC designates 6PPD in tires as a Priority Product and USTMA expands its consortium to 32 tire manufacturers from around the world to prepare a Preliminary (Stage 1) Alternatives Analysis (AA) to identify and evaluate potential alternatives to 6PPD in tires. Individual consortium members submitted the report to DTSC to meet compliance deadline.
- Should 6PPD be a priority product?
- 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.
- What causes 6ppd-q in soil and tire rubber wear particles (TRWPS)?
- There is a linkage between 6PPD-Q in soil and tire rubber wear particles (TRWPs), indicating its origin from sources associated with vehicular activities (Klockner et al., 2019). Approximately 50% of TRWPs can infiltrate the soil, releasing bound chemicals like 6PPD (Klockner et al., 2019).
