New technology for green carbon black preparation was authorized by invention patent

A few days ago, "An Anti-aging Green Tire Carbon Black and Its Preparation Method" independently completed by Shandong Neste Carbon Black Co.
, Ltd.
successfully passed the examination of the State Intellectual Property Office and was awarded the National Invention Patent Certificate
.

An anti-aging green tire carbon black and a preparation method thereof are mainly prepared by treating oxidized carbon black with a modifier.
The modifier molecule contains a mercaptobenzothiazole structure and can participate in the vulcanization and crosslinking reaction of rubber, so that the The interaction between the environmentally friendly carbon black and the rubber is enhanced, the reinforcement effect is improved, and the dispersibility of the carbon black is promoted
.
At the same time, the modifier molecule contains a hindered amine structure.
The hindered amine decomposes the hydroperoxide to inhibit the aging of the rubber; the phenolic hydroxyl group on the molecule forms a hydrogen bond with the nitrogen atom.
Under the action of ultraviolet rays, the electron cloud density on the nitrogen atom increases, and the molecular The hydrogen bond can be broken, the proton is transferred from the oxygen atom to the nitrogen atom, and then the electron on the oxygen atom is transferred to the carbon atom of the benzene ring to form a quinoid structure
.
Due to the existence of carbanion, the structure is unstable, which in turn generates exothermic heat and transforms into a stable structure, preventing the photoaging of the rubber
.