The production of high-molecular compounds requires improvement in manufacturing technology. Promising instrumentation of technological processes, new raw materials are being introduced, that in some cases makes it possible to improve the composite materials, use valuable hydrocarbon raw materials more fully and efficiently, and reduce the pressure on the environmental. All this applies to the production of synthetic rubbers. It is important to select new coagulating systems used in the technology of rubber separation from latex, since the coagulation stage is one of the most material-intensive and energy-intensive and problematic from an environmental perspective. In this paper, we studied the possibility of using a beet-sugar production by-product - beet molasses - in the technology for producing styrene-butadiene rubber of the SKS-30 ARK brand to reduce the aggregative stability of latex systems. The completeness of rubber separation was achieved at consumption of 200 kg / t and sulfuric acid consumption of 15 kg / t of rubber. In this case, the pH of the system increased from 3 to 5.5. Increasing the consumption of sulfuric acid to 40 kg / t of rubber allowed reducing the consumption of molasses to 90 kg / t of rubber and stabilizing the acidity of the coagulated system. Synergism in the action of these components was established for the first time and allowed reducing the consumption of coagulating agent by 2–3 times. Synergism of these components was first established and allowed reducing the consumption of a coagulating agent by a factor of 2–3. Based on the rubber obtained, rubber mixtures were prepared using standard components and vulcanized. Rubber based on SKS-30 ARK meets the requirements.

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.

In the articlethe estimation of coagulating ability using cationic electrolytes is shown.It was found that in the case of using low molecular weight cationic electrolyte, the completeness of the release of rubber from latex is achieved at their consumption of 20–30 kg/t of rubber. A feature of the behavior of cationic surfactants in the latex coagulation has been established. It is shown that the consumption of cationic surfactants corresponds to the consumption of polymer cationic electrolytes. Also, a hypothesis was put forwardthatcationic surfactants violate the aggregate stability of latex systems and the mechanism of action, which is basedon the interaction of cationic surfactant micelles with latex globules carrying anionic surfactants on the surfaceis proposed.The use of cationic surfactants can eliminate the use of sodium chloride in the industry of separating emulsion styrene-butadiene rubber from latex, as well as solve some environmental problems.The final stage of theinvestigationwas to determinethe parametersof rubber compounds and vulcanizates based on the rubber. These rubbers, rubber compounds and vulcanizates correspond to standard parameters.

Currently, special attention is paid to improving the production technology of synthetic rubbers. Synthetic rubbers are in great demand in the tire and rubber industry, in the manufacture of composite materials for various purposes, etc. Every year, the requirements for both the quality of manufactured products and the environmental friendliness of their production are increasing. One of the problematic stages in the production of rubbers by emulsion polymerization is the stage of their separation from latex. The paper considers the possibility of using a bis-compound coagulant consisting of a by-product of beet sugar production of molasses and traditional sodium chloride in the process of obtaining oil-filled rubbers. It was found that the use of this bis-compound coagulant to reduce the agricul-ture stability of synthetic latexes reduces the consumption of coagulating agents by 3-4 times. It is shown that the main coagulating component of molasses is betaines, which are present in its composition. Sodium chloride contributes to the coagulation process by the concentration mechanism, and betaine – by the neutralization mechanism, based on the chemical interaction of surfactant anions with the positively charged ammonium group of the betaine molecule. The use of a bis-compound coagulant reduces environmental pollution by components of the emulsion system. The water phase remaining after the rubber is extracted from latex can be used to prepare a solution of molasses and sulfuric acid. Rubber mixtures prepared on the basis of experimental samples of rubber meet the requirements in terms of their parameters.