widely used chemical rubber antioxidant ippd
- Classification:Chemical Auxiliary Agent
- Purity:97%
- Type:Rubber antioxidant
- Appearance:Grey to Very Dark Grey Solid
- MOQ:1MT
- Application:tires,rubber shoes and other rubber products
- Production Capacity:20000 Metric Ton/Metric Tons per Year
- Package:25 kgs per bag
the effect of antioxidant concentration of n-isopropyl-n,study the influence of high concentrations of antioxidants n-isopropyl-n-phenyl-p-phenylenediamine (ippd) and 2,2,4-trimethyl-1,2-dihydroquinoline (tmq) and the mixing time of the vulcanization physical properties, thermal properties, mechanical properties and structure micro on natural rubber compound has been done.
N-Isopropyl-N'-phenyl-p-phenylenediamine (often abbreviated ippd) is an organic compound commonly used as an antiozonant in rubbers. like other p-phenylenediamine -based antiozonants it works by virtue of its low ionization energy, which allows it to react with ozone faster than ozone will react with rubber. [2]
rubber antioxidants and their transformation products
the tps of rubber antioxidants have been observed in some studies under environmental conditions. as one of the widespread rubber antioxidants, amine antioxidants (ppds: tmppd, dppd, 6ppd, and 6ppdtz) could react with o 3 (in parts per billion volume levels) in the environment and produce ppd-quinone [31].
improvements of lanthanum complex on the thermal-oxidative,mixed antioxidants composed of antioxidant ippd and novel rare earth lanthanum complex were used as an additive to prepare natural rubber (nr) samples. the variations of macro-properties, surface characterizations, and internal groups were investigated by mechanical testing, x-ray photoelectron spectroscopy, and thermogravimetric analysis
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.
rubber antioxidants and chemical 6ppd,in this review, we first summarize the category and application of rubber antioxidants in the world, and then demonstrate the formation mechanism of their tps in the environment, emphasizing their influence on the ozone oxidative degradation.
new evidence of rubber-derived quinones in water, air for sale
herein, we developed and implemented a mass spectrometry-based platform combined with self-synthesized standards for the investigation of rubber-derived quinones formed from ppd antioxidants. our results demonstrated that five quinones are ubiquitously present in urban runoff, roadside soils, and air particles.
p-phenylenediamines and p-phenylenediamine quinone,N-(1,3-dimethyl-buty)-N'-phenyl-P-Phenylenediamines (ppds) are widely used in the rubber industry to effectively prevent oxidation of rubber by ozone, inhibit aging of rubber, and improve product application performance and service life (cataldo, 2018, cataldo, 2019, cataldo et al., 2015).
data for effects of lanthanum complex on the thermo-oxidative
novel mixed antioxidants composed of antioxidant ippd and lanthanum (la) complex were added as a filler to form natural rubber (nr) composites. by mechanical testing, fourier transform infrared spectroscopy with attenuated total reflectance (ftir-atr) and thermogravimetric analysis (tga), a string of data, including the mechanical properties
recent progress in the rubber antioxidants Rubber Auxiliary Agent,recently, li et al. used two kinds of antioxidants, i.e., 4,4’-bis(α, α-dimethylbenzyl) diphenylamine (antioxidant 445, fig. 2 a) and 2-mercaptobenzimidazole zinc (antioxidant mbz, fig. 2 b), to improve the anti-aging performance of ethylene propylene diene rubber (epdm) by making full use of each antioxidant's advantage and character [9].
- What are rubber antioxidants?
- Rubber antioxidants are defined as substances that could delay the aging of polymer compounds and prolong the service life of rubber products by inhibiting oxidation, heat, or light radiation . To date, the annual global consumption of rubber antioxidants is over 700,000 tons, accounting for about 40% of the total amount of rubber additives.
- How does a rubber matrix affect antioxidative performance?
- Obviously, the solubility/dispersity of the antioxidant within the rubber matrix is a key factor in determining the antioxidative performance, and the antioxidative efficiency of antioxidant increases with the dispersion state within the rubber matrix, owing to higher specific surface area available for termination of radicals.
- 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) .
