recent progress in the rubber antioxidants Rubber Auxiliary Agent
- Classification:Chemical Auxiliary Agent
- Purity:97.%
- Type:Anti-aging agent
- Appearance:Dark brown to dark vilet pastilles or flake
- Environmental Protection:Yes
- Application:Rubber Auxiliary Agents
- Storage:Store in a Cool, Dry Place
- Package:Ply Kraft Paper Bag
synthesis and properties of a novel reactive and low,the addition of antioxidants to rubber is one of the most economical and effective methods for delaying rubber aging. however, antioxidant migration can cause environmental pollution. to address this issue, a new reactive antioxidant was synthesized via the chemical bonding of glycidyl methacrylate (gma) and p -aminodiphenylamine (ppda).
we first give a brief introduction of the oxidation process and oxidation mechanism for rubbers. then, we present the strategies to improve the anti-oxidative efficiency of rubber antioxidants. after that, recent advances to minimize the blooming and migration of antioxidants are summarized.
rubber antioxidants and their transformation products
antioxidants are added to natural rubber (nr) and synthetic rubber (sr) during mastication, which is the process of transforming rubber from a strong and elastic state to a soft and plastic state [4, 5]. in addition, they could also be coated on the nr surface to achieve a similar effect [6].
rubber antioxidants and chemical 6ppd,antioxidants are prevalently used during rubber production to improve rubber performance, delay aging, and extend service life. however, recent studies have revealed that their transformation products (tps) could adversely affect environmental organisms and even lead to environmental events, which led to great public concern about environmental
recent progress in the rubber antioxidants Rubber Auxiliary Agent
a novel filling antioxidant (lig-g-rt) to improve the mechanical properties and antiaging performance of styrene-butadiene rubber (sbr) composites was prepared by grafting antioxidant...
relationship between the aging thermal oxygen and mechanical,a novel functional carbon nanofiller cnts-cooh-rd with antioxidant aging properties was prepared by grafting the antioxidant rd onto the surface of carboxylated carbon nanotubes. filler cnts-cooh-rd greatly improves the heat and oxygen aging resistance and tribological properties of nbr composites.
amine-functionalized lignin as an eco-friendly antioxidant
herein, as an alternative material of 6ppd, we newly introduce eco-friendly amine-functionalized lignin (al) to be incorporated in rubber, which can provide excellent combinatorial antiaging properties of thermal stability and ozone/fatigue resistances through radical scavenging effect.
a combined experimental and molecular simulation study of,antioxidants 2246, 6ppd, and mb, examples of amines, phenols, and heterocycles, respectively, were chosen to study these factors influencing the selection of antioxidants for the thermal-oxidative aging of butadiene rubber (br).
effectiveness of different kinds of antioxidants in resin
the effectiveness of several antioxidants belonging to different chemical classes such as p-phenylene diamine (antioxidant 4010na), secondary amine (antioxidant 445), quinoline (antioxidant rd), and phenolic (bht, 1010, 2246) on the performance of a resin-cured biir vulcanizate was investigated.
antioxidant modified graphene oxide for robust and highly,rubber antioxidant rd was used as organic surface modifier for go.; rd was chemically grafted on go by c–n bond and showed good reducing capability for go.; highly anti-aging and robust rubber composites with rd modified go as functional nanofiller.
- Is antioxidant Rd a good protection against thermal oxidative aging of rubber?
- As the aging time increased, the large antioxidant RD precipitated from the NBR matrix—unfavorable for protection against the thermal-oxidative aging of rubber. In M5, however, the antioxidant RD was uniformly dispersed on the surface of the NBR with a small particle size.
- Does antioxidant 2246 protect rubber from aging?
- Among them, antioxidant 2246 has a good performance to protect rubber from aging caused by heat, oxygen, and metals. Because hydrogen in phenolic antioxidants can combine with the oxygen in air, their antiaging efficiency is therefore lowered compared with amine antioxidants [21, 22].
- Do antioxidants and their TPS increase environmental risk awareness of rubber products?
- To our knowledge, this is the first review on antioxidants and their TPs in the environment, which may elevate the environmental risk awareness of rubber products and their TPs in the near future.
- How to prevent thermal oxidative aging of rubber?
- In general, the addition of antioxidants is the most convenient and effective method for retarding the thermal-oxidative aging of rubber .
