tire manufacturers rubber antioxidant 6ppd
- Classification:Chemical Auxiliary Agent
- Purity:97%
- Type:Rubber additive antioxidant
- Appearance:Gray brown or dark brown
- Density:1.08g/cm3
- Application:Used in Tires,Industrial Rubber Products
- Production Capacity:3000 Ton/Year
- Package:25kg/drum
6ppd: its role in tire manufacturing and environmental impact,published oct 19, 2024. 6ppd, or n- (1,3-dimethylbutyl)-n’-phenyl-p-phenylenediamine, is a chemical compound widely used in tire manufacturing. its primary function as an antioxidant enhances tire durability by preventing degradation from environmental factors like heat, oxygen, and ozone. however, recent studies have raised concerns about.
washington d.c.—the push to find an alternative to the tire antidegradant 6ppd—an additive that is critical to consumer safety but can transform into an offshoot chemical that is fatal to some fish species—continues for the u.s. tire manufacturers association.
early 6ppd analysis by u.s. tire manufacturers association
washington—the wheels are turning at both the federal and state levels in the search for an alternative to 6ppd.. the california department of toxic substances control on aug. 26 issued a notice of compliance to the u.s. tire manufacturers association for the group's stage 1 alternatives analysis report, clearing the way for a second, final stage to begin.
antioxidant 4020 rubber additives 6ppd in tires,with full support from ustma, dtsc listed motor vehicle tires containing 6ppd as priority products in california effective october 1, 2023. to meet the requirements under the scpr, ustma convened a consortium of 32 tire manufacturers to conduct an aa for 6ppd in tires. the preliminary (stage 1) aa report was released by ustma and submitted by.
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.
china rubber antioxidant 6ppd manufacturers low price,rubber antioxidant 6ppd 4020 rubber antioxidant 4020(6ppd) chemical name n-(1,3-dimethyl-buty)-n'-phenyl-p-phenylenediamine molecular formula c18h24n2 cas no. 793-24-8 specification.read more as one of the most professional rubber antioxidant 6ppd manufacturers in china, we're featured by quality products and good service.
rubber tires 6ppd-q delaware currents
tire manufacturers will also have until the end of 2024 to turn in any previously unpublished 6ppd studies to the u.s. environmental protection agency, which just granted a petition from three west coast native american tribes asking the epa to make rules against the use of 6ppd in tires.
u.s. tire manufacturers association mobilizes consortium to,washington, 26 july 2023: the u.s. tire manufacturers association (ustma), which represents several of the world’s largest global tire companies, has mobilized a consortium of 16 tire manufacturers to conduct an alternatives analysis for 6ppd in tires under california’s safer consumer product regulations (scpr). this comes after the decision by california department of toxic substances.
fishing groups sue thirteen of the largest tire
tire manufacturers have used 6ppd since the 1950s to keep tires from degrading too quickly. at the tire’s surface, 6ppd interacts with ozone to create several transformation products, including 6ppd-q. 6ppd-q is then picked up during storm events and discharged into nearby waterways.
transformation products of tire rubber antioxidant 6ppd in,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. to address these data gaps, gas-phase ozonation of 6ppd was.
