Synthetic rubber wet mixing technology

Abstract

The invention discloses a synthetic rubber wet mixing technology. The synthetic rubber wet mixing technology comprises the following steps of (1) liquid preparation, wherein synthetic rubber is placedin a container, white carbon black emulsion is added into the synthetic rubber dropwise at a stirring speed of 600 r / min, after dropping is completed, stirring is conducted at 1,000 r / min for 30 minto enable the emulsion to be mixed evenly, the stirring speed is reduced to 800 r / min, sulfamic acid, an accelerant NS, stearic acid and an anti-aging agent are added into the emulsion in sequence during stirring, and after adding is completed, stirring is conducted continuously for 45-48 min to obtain latex mixed liquid; (2) coagulation; (3) collection; (4) stirring, wherein a rubber mixture is stirred in a rubber wet mixer; (5) drying, wherein the stirred mixture is subjected to flocculation, rubber washing and solvent removal to obtain synthetic rubber. According to the synthetic rubber wetmixing technology, by combining two modes of surface modification and mechanical dispersion, the interfacial compatibility among the rubber and filler molecules is enhanced, so that the mixed emulsion is stabler and evener, and the comprehensive performance of the synthetic rubber is improved.

Description

technical field [0001] The invention belongs to the technical field of rubber mixing, and in particular relates to a synthetic rubber wet mixing process. Background technique [0002] For a long time, the raw material used in the rubber industry has always been a kind of block rubber. This block rubber not only brings inconvenience to handling and batching, but also needs to be cut into small pieces for weighing, and it also consumes a lot of power when mixing. It needs to be crushed and mixed, so heavy rubber mixing equipment is required, which not only consumes a lot of power, but also the carbon black is not easy to disperse, so the number of rubber mixing times is long and the cycle is long. In addition, what the rubber tree produces is liquid latex. To solidify and dry the latex to prepare block rubber is not only a complicated process and a long cycle, but also consumes a lot of manpower and material resources and wastes a lot of energy. [0003] Aiming at various sho...

AI Technical Summary

Problems solved by technology

[0002] For a long time, the raw material used in the rubber industry has always been a kind of block rubber. This block rubber not only brings inconvenience to handling and batching, but also needs to be cut into small pieces for weighing, and it also consumes a lot of power when mixing. It can be crushed and mixed, so heavy rubber mixing equipment is required, which not only consumes a lot of power, but also the carbon black is not easy to disperse, and the number of times of rubber mixing is long and the cycle is long.

In addition, what the rubber tree produces is liquid latex. To solidify and dry the latex to prepare block rubber is not only complicated and long-term, but also consumes a lot of manpower and material resources and wastes a lot of energy.

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