widely used chemical rubber antioxidant ippd
- Classification:Chemical Auxiliary Agent
- Purity:98.9%
- Type:Rubber antioxidant
- Appearance:Dark brown to dark violet pastilles
- Brand Name:Gobiotech
- Application:Petroleum Additives
- Storage:Store in a Cool, Dry Place
- Package:Ply Kraft Paper Bag
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].
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 chemical 6ppd
natural antioxidants are only found in nr, such as amino acids, tocotrienol, and betaines , whereas physical and chemical antioxidants are widely used in various synthetic rubber products.
n-isopropyl-n′-phenyl-p-phenylenediamine wiley online library,the protective effects against cracks resulting from ozone and material fatigue are more important than its effects as an antioxidant. the main field of application for n-isopropylN'-phenyl-p-phenylenediamine is the tyre manufacturing sector.
the effect of antioxidant concentration of n-isopropyl-n
the purpose of this study is to compare the effect of anti-oxidants types ippd and tmq and mixing time of vulcanization of the physical properties, mechanical properties, microstructure and elemental composition of the synthesis of natural rubber compound.
widely used good price rubber antioxidant ippd,substituted para-phenylenediamine (ppd) antioxidants have been extensively used to retard oxidative degradation of tire rubber and were found to pervade multiple environmental compartments. however...
widespread occurrence of two typical n, n’-substituted p
among the ppds, n-(1,3-dimethybutyl)-n’-phenyl-p-phenylenediamine (6ppd) stand as the preeminent tire antioxidant, reigning as the most prevalent ppd antioxidant globally. in china, the production of 6ppd is about 200,000 tones in 2020, accounting for approximately 54% of the global production [3] .
new evidence of rubber-derived quinones in water, air for sale,high-performance liquid chromatography (hplc)-grade acetonitrile, methanol, and dichloromethane were purchased from vwr chemicals (fontenay-sous-bois, france).
on the dehydrogenation of n,n′-substituted p-phenylenediamine
using b3lyp/6-31g ∗ treatment, the optimal geometries, electronic structures and ir spectra of n-phenyl-n′-isopropyl-p-phenylenediamine antioxidant (ippd) and its doubly dehydrogenated oxidation products have been obtained.
p-phenylenediamine antioxidants and their quinone derivatives,this review summarizes the physicochemical properties, global environmental distribution, bioaccessibility, potential toxicity, human exposure risk, and green measures of ppds and ppd-qs. these chemicals exhibit lipophilicity, bioaccumulation potential, and poor aqueous stability.
- What is the most common PPD antioxidant?
- Among the PPDs, N - (1,3-dimethybutyl)- N’ -phenyl- p -phenylenediamine (6PPD) stand as the preeminent tire antioxidant, reigning as the most prevalent PPD antioxidant globally. In China, the production of 6PPD is about 200,000 tones in 2020, accounting for approximately 54% of the global production .
- Can antioxidant protection be used to detect PPDS and TPS?
- An efficient and stable method for the detection of PPDs and their TPs was developed. Oxidative degradation is the main cause of low extraction efficiency of PPDs and some TPs. Combined strong antioxidant protection for stable extraction PPDs and their TPs was first proposed.
- Are PPD antioxidants toxic?
- An increasing number of studies have focused on the toxicity of these PPD antioxidants. (8−10,15,33) According to the European Chemical Agency, several of them were labeled as very toxic to aquatic life with long-lasting effects and harmful if swallowed and may cause an allergic skin reaction.
- Do p-phenylenediamine antioxidants oxidize during pretreatment?
- There are relatively few reports on the content of p-Phenylenediamine antioxidants (PPDs) and their transformed products (TPs) in aquatic products. Quantifying PPDs, PPDQs, and other TPs is challenging owing to their tendency to oxidize and decompose during pretreatment, especially in organisms.