Toxicological effects of 6PPD and 6PPD quinone
1. Introduction. N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine or 6PPD is an antioxidant and antiozonant that is widely consumed by the rubber and polymer industry (Datta et al., 2007).This compound is mainly used in rubber tires to protect them from cracking that results from ozone reaction and wear out. 6PPD is also used to prepare dyes (Meyer and Fischer,
Dusantox® 6PPD is the most widely used universal antidegradant for rubber products with excellent antiozonant properties and long-term protective effect. View Product Safety Data Sheet AB Specialty Silicones Andisil® TL 28 Safety Data Sheet Andisil® TL 28 View Document Akron Dispersions Bostex 346
Rubber Auxiliary Agent 6ppd(4020) Rubber Antioxidant 6ppd
Rubber Auxiliary Agent 6PPD(4020) Rubber Antioxidant 6PPD(4020) Product Description The cinereus solid, the relative density 0.986-1.00, dissolve in the benzene, the acetone, the ethanoic acid, the ethyl acetate, the dichloroethane alkane and the toluene, does not dissolve in the water.
Oct 21, 2021· The grafted copolymer (NR-g-pPDAM) was incorporated into the ethylene propylene diene monomer rubber (EPDM) rubber mix as an antioxidant. For comparison purposes, a widely used antioxidant N -(1,3-dimethylbutyl)- N ′-phenyl- p -phenylenediamine (6PPD) was used in addition to a blank sample without antioxidant.
WO1999020687A1 Quinone diimine as a rubber additive
The invention relates to the high temperature mixing of elastomeric material in the presence of a quinone diimime antidegradant and carbon black, prior to vulcanization. By mixing the antidegradant quinone diimine with the elastomer prior to vulcanization, enhanced handling and processing qualities are realized in the vulcanized rubber.
Its performance is similar to that of antioxidant 4010NA, but its toxicity and skin irritation are less than 4010NA, and its solubility in water is better than 4010NA. It can be widely used in the preparation of tires, tapes and many other industrial rubber products, and
China Rubber Chemical Factory, Rubber Chemical Supplier
Trade name: Rubber Antioxidant 6PPD, 4020 Chemical Name: N- (1,3-dimethylbutyl)-N'-phenyl-p-phenylene Molecular Formula: C18H24N2 Molecular Weight: 268.4 CAS NO.: 793-24-8 Usage: Widely Used in Manufacture of Tire, Rubber Belt and Many Other Industrial Rubber Products.
1. Introduction. N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine or 6PPD is an antioxidant and antiozonant that is widely consumed by the rubber and polymer industry (Datta et al., 2007).This compound is mainly used in rubber tires to protect them from cracking that results from ozone reaction and wear out. 6PPD is also used to prepare dyes (Meyer and Fischer,
6PPD quinone: The environmental contaminant killing Coho
Aug 09, 2021· 6-PPD is a chemical widely used to protect car tires from ozone. However, when rainwater washes it into freshwater, 6PPD degrades into 6-PPD quinone, a contaminant that a recent study has linked to the mass deaths of Coho salmon in the Pacific Northwest of the US.. Researchers from Northeastern University and the University of Washington found that even
Jan 06, 2022· a similar synthetic antioxidant is used.87 7.2 Technical feasibility of alternative Since its development, vulcanization has been widely used across the rubber industry. Due to its effectiveness, this process is relied upon to create rubber products that are durable and applicable in many industries and applications. Efforts to increase the
- Is 6PPD a toxic rubber antioxidant?
- 6PPD is a toxic rubber antioxidant released into the environment through tire wear. A simple HPLC-UV method was developed to quantify 6PPD without mobile phase additives. A pretreatment method was developed to quantify 6PPD in mouse liver samples. The MDL for 6PPD was 5.5 pg/μL, with a relative recovery of 72 % after pretreatment.
- What is 6PPD used for?
- Application: 6PPD is a general antioxidant and antiozonant, which is suitable for the formulations of natural rubber and synthetic rubber.
- What are rubber antioxidants?
- Antioxidants are substances that are used in rubber and plastic industries to prevent oxidation and decay of polymer materials. TMQ, also known as Polymerized 2,2,4-trimethyl-1,2-dihydroquinoline, is a widely used rubber antioxidant.
- What are the future trends of rubber antioxidants?
- The perspectives on the future trends of rubber antioxidants have been presented. Elastomers, especially diene-rubbers containing unsaturated double carbon bonds in the main chains, are vulnerable to thermal/oxygen aging, which would make the elastomers less elastic and result in earlier failure of the elastomer products.
- Are rubber antioxidants a rational design?
- The development of medical antioxidants also inspires the rational design of rubber antioxidants. Recently, Sun, et al. synthesized a novel antioxidant (APPT) containing aromatic amine, thiourea and allyl groups by the reaction between N-phenyl-p-phenylenediamine and allyl isothiocyanate (Fig. 3 b) .
- Which antioxidants are used in rubber vulcanization?
- The amine and phenolic antioxidants are the most widely used rubber antioxidants (Fig. 1b and c). Generally, the phenolic antioxidants have poor antioxidative efficiency (compared to amine antioxidants) and they can delay vulcanization, but they cause little discoloration problems.
