A promising coagulant for the production of emulsion rubbers

The article presents studies on the possibility of using cyanurotriamide hydrochloride in the technology of producing emulsion rubbers as a coagulating agent. With the increasing demand for polymer products, there is a need to improve their production technologies, which makes it possible to increase the efficiency of processes and reduce costs. However, the existing technology for separating rubber from latex, based on the use of sodium chloride, has significant disadvantages: high material consumption and water consumption, as well as environmental risks due to wastewater pollution. In this regard, alternative coagulants are being investigated that can replace salt agents, while remaining effective and economically feasible. One of the promising solutions is the use of cyanurotriamide (CTA), which has good coagulating properties and low cost. It is shown that with an increase in the consumption of coagulant, an increase in the mass of the resulting rubber crumbs is observed. It has been established that when using such a coagulant, the process of separating rubber and latex proceeds without the use of an acidifying agent. The studied vulcanizates obtained from rubber isolated using CTA meet the requirements for physical and mechanical properties and are comparable with samples obtained on the basis of sodium chloride. Thus, CTA salt is a promising coagulating agent for the technology of producing emulsion rubbers, providing environmental benefits and high process efficiency.