Antioxidants & Stabilizers - Elastomer Additives - Knowde
SG-R 601 is a highly effective, nontoxic, low cost rubber antioxidant, has excellent heat and oxidation resistance, can improve fatigue damage of crosslinked rubber under many cycles flexible distortion condition, and has good synergistic effect with antioxidant RD, 4010 to improve aging resistance and tear resistance, so it is used in
New Additive Solutions for the PVC Industry - ResearchGate
Newly developed high performance light stabilizers and other effect additives (biocides, antistats, antifogging and fluorescent whitening agents, etc.) enhance the quality of finished PVC...
Antioxidants & Stabilizers - Elastomer Additives - Elastomers
Features: Good Thermal Stability, Good Stain Resistance, Prevents Thermo-Oxidative Degradation . Antioxidant 697 is a sterically hindered phenolic antioxidant and metal deactivator. Antioxidant 697 protects polymers against oxidative degradation and metal catalyzed degradation during processing and in end‐use applications.
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Plasticizers: Types, Uses, Classification, Selection & Regulation
DEHP offers good gelling, satisfactory electrical properties and helps to produce highly elastic compounds with reasonable cold strength. It displays fairly good flexibility at low temperatures and some resistance to high-temperature. However, DEHP is listed by the IARC as a human carcinogen.
- Why do we need antioxidants for rubber composites?
- Therefore, for a real application, the antioxidants are indispensable to retard the thermal-oxidative-aging process of the rubber composites and then prolong the service life. In this review, we systematically review the recent progress of antioxidants for rubber.
- How does rubber antioxidant work?
- To prolong the service life of rubber composites by retarding their aging processes, rubber antioxidant initially relies on the use of a coating, such as paraffin, and coal tar, to physically isolate oxygen, but this protective layer would quickly lose the utility due to wear.
- 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) .
- Are rubber antioxidants harmful?
- As shown in Table 1, many commonly used rubber antioxidants are damaging to human health and the environment. For example, the antioxidant MB (2-mercaptobenzimidazole), which is widely used in the manufacture of light-colored rubber products, is harmful to aquatic organisms and has a continuous effect.
- Can rubber antioxidants contain rare-earth ions?
- The recently reported rubber antioxidants containing rare-earth ions are summarized in Fig. 4, for instance, Sun et al. prepared a novel hindered phenol rare-earth complex (DTSm) (Fig. 4f) by a simple and green method using 3,5-di-tert-butyl-4-hydroxybenzoic acid (DT) and samarium chloride hexahydrate (SmCl3 ·6H 2 O) via coordination reaction.
