Best Price Rubber Antioxidant 6PPD CAS No.: 793-24-8
- Classification:Chemical Auxiliary Agent
- Purity:96%
- Type:Anti-aging agent
- Appearance:Gray Purple or Purple Brown
- Shelf life:2 Years
- Application:Plastic Auxiliary Agents
- Production Capacity:200 Metric Tons per Month
- Package:25 kg/bag or as your require
from tread to watershed: how tire wear particle chemicals,the rubber-derived ozone transformation product 6ppd-quinone (6ppd) was discovered in 2020 as a causative agent for urban runoff mortality syndrome in coho salmon.
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 found in tires.
environmental fate of tire-rubber related pollutants 6ppd
to enhance tire durability, the antioxidant n-(1,3-dimethylbutyl)N'-phenyl-p-phenylenediamine (6ppd) is used in rubber, but it converts into the toxic 6ppd quinone (6ppd-q) when exposed to oxidants like ozone (o 3), causing ecological concerns. this review synthesizes the existing data to assess the transformation, bioavailability, and
u.s. tire manufacturers association and u.s. geological,the study will expose fish cell lines to rubber containing three possible alternatives to 6ppd and their transformation products. the toxicity of each proposed alternative will be assessed and compared to the toxicity levels of 6ppd-quinone.
new research indicates higher 6ppd migration from silica tire
hanover, germany tire antidegradants based on 6ppd migrate at a significantly higher rate from silica-reinforced rubbers than from carbon-black reinforced equivalents, new research has found.
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.
computational studies of rubber ozonation explain the
the discovery that the commercial rubber antidegradant 6ppd reacts with ozone (o3) to produce a highly toxic quinone (6ppd) spurred a significant research effort into nontoxic alternatives. this w...
environmental profiles, hazard identification for sale,however, the environmental consequences of waste generated during rubber product use, particularly the formation of 6ppd-quinone (6ppd-q) through the reaction of 6ppd with ozone, have raised significant concerns due to their detrimental effects on ecosystems.
us tire group optimistic over search for 6ppd alternatives
washington the us tire manufacturers association (ustma) believes global collaborations will identify alternatives to 6ppd anti-degradants used to protect tire-rubber materials.
rubber anti-aging agent antioxidant 6PPD (4020) supplier,6ppd is an organic chemical widely used as stabilising additive (or antidegradant) in rubbers, such as nr, sbr and br; all of which are common in vehicle tires. although it is an effective antioxidant it is primarily used because of its excellent antiozonant performance.
- Does 6PPD ozonation pose environmental risks?
- 6PPD, a tire rubber antioxidant, poses substantial ecological risks because it can form a highly toxic quinone transformation product (TP), 6PPD-quinone (6PPDQ), during exposure to gas-phase ozone. Important data gaps exist regarding the structures, reaction mechanisms, and environmental occurrence of TPs from 6PPD ozonation.
- 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).
- What are the data gaps in 6PPD ozonation?
- Important data gaps exist regarding the structures, reaction mechanisms, and environmental occurrence of TPs from 6PPD ozonation. To address these data gaps, gas-phase ozonation of 6PPD was conducted over 24–168 h and ozonation TPs were characterized using high-resolution mass spectrometry.
- Can 6PPD be recycled?
- 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. Upcycling end-of-life tire waste is complex due to the recalcitrant nature of the toxic legacy additive, 6PPD.
