Application of a by-product in the production of pressed baker yeast for separating rubber from latex

Abstract

Synthetic rubbers are the most common polymers. They are widely used in the production of a wide variety of products. The requirements for the quality of the obtained polymers constantly are increasing with a corresponding reduction in the cost and environmental tension of these industries. One of the effective areas that allow the production of synthetic rubbers to meet the requirements is the search and application of new technologies for the manufacture of emulsion rubbers. One of the problematic stages in the production of emulsion rubbers is their isolation from latex. Agents that reduce the stability of latex dispersions have low resistance to biological oxidation and are capable of chemically binding the components of the emulsion system, as well as being almost completely removed from wastewater discharged to treatment plants, used to solve this problem. The work presents the results of the use of fertile, a by-product of the production of pressed baker’s yeast, in the technology of styrene-butadiene rubbers production. Its effect on the process of isolation of rubber SKS-30 ARC from latex has been studied. The costs of acidifying and coagulating agents have been determined. The effect of pH medium on the process of rubber isolation from latex at various dosages of fertile has been studied. Rubber compounds based on rubber SKS-30 ARC have been prepared using standard components and they have been vulcanized. The resulting vulcanizates in terms of performance have met all the requirements.