Tetrabenzylthiuram disulfide paste and preparation method thereof

Abstract

The invention discloses tetrabenzylthiuram disulfide paste and a preparation method thereof. The tetrabenzylthiuram disulfide paste comprises high-viscosity long-chain chlorinated paraffin, DBU creylate and tetrabenzylthiuram disulfide powder. The preparation method comprises the steps that 1, the tetrabenzylthiuram disulfide powder, the high-viscosity long-chain chlorinated paraffin and the DBU creylate are discharged under a screw rod and evenly mixed in a kneading machine; 2, the mixture in the kneading machine further conducts processing through the discharging screw rod on the lower portion of the kneading machine, and the tetrabenzylthiuram disulfide paste is obtained. A tetrabenzylthiuram disulfide ultra-fine coating composition has the advantages of being high in dispersion and easy to mix uniformly and not generating dust. Besides, the production operation is simple, the efficiency is high, and the paste is suitable for industrial production.

Description

technical field [0001] The invention relates to a paste of tetrabenzylthiuram disulfide and a preparation method thereof, belonging to the technical field of application of rubber additives. Background technique [0002] Rubber processing mainly includes plasticating, internal mixer mixing or open mill mixing, open mill or extruder output, skeleton material lamination molding, semi-finished product molding, extrusion, calendering, injection, molding, vulcanization and other processes . According to different rubber products and formula design requirements, several of the processing processes are adopted. [0003] The tire production process adopts the rapid production process of the 1-3 stage mixing of the internal mixer and the addition of sulfur and some accelerators on the open mixer, and puts forward the weighing technology of the compounding agent, the rapid mixing of the compounding agent, the dispersion speed and the uniformity. High requirements, in order to meet t...

AI Technical Summary

Problems solved by technology

The development of radial tires in my country is rapid, and the requirements for supporting the accelerator NS are more urgent, but the domestic production of tert-butylamine has not formed a scale, which affects the industrial production of the accelerator NS

[0004] Traditional rubber additives are mostly powdery chemicals. Although they bring great benefits to rubber products and their processing, they also have many shortcomings: First, the compatibility of powdery additives with rubber is better than that of pre-dispersed rubber The auxiliary masterbatch is poor, and it is more difficult to disperse evenly in rubber than rubber masterbatch products. Therefore, the quality of rubber products using powdered additives will be lower than that of rubber products using rubber masterbatch products; much energy loss

However, the traditional tetrabenzylthiuram disulfide is a powder, which is very easy to cause dust and environmental pollution during production, transportation and use; second, the compatibility of powder products with rubber is poor, and the mixing time needs to be prolonged , increasing the mixing temperature, etc.