What is pilnox TDQ?

Pilnox TDQ is highly potent staining, low volatility, polymeric antioxidant and most widely used in rubber compound base on diene rubber. Pilnox TDQ is a polymerized resinous antioxidant in pastilles form is easy to handle and disperse well in the rubber compound at normal processing temperature.

Why do we use tmqs on highly unsaturated rubbers?

on highly unsaturated rubbers to protect the rubber products from Oxidative Aging at ambient as well as higher temperatures. TMQs represent a group of antioxidants based on polymerized acetone-aniline condensation products.

Which TMQ antioxidant is considered an impurity?

High proportions of monomer content in TMQ antioxidant is also considered as an impurity since it is leached out in water and cause porosity in the thick cross section extrudates. Pilnox–HP is specially purified grade of TMQ antioxidant which is almost free from the objectionable Impurities such

Which amine groups act as rubber antioxidants?

It is well known that only secondary amine groups ( =N–H ) function as rubber antioxidants by the formation of nitroxyl radical ( -NO ) and thus only the Dimer, Trimer & Other higher oligomers in TMQ act as effective antioxidants.