Keyword: «elastomer»

The actual problem of material science in obtaining composite elastomers is reinforcement by high-modulus fibers with increased technological and operational properties. The most widely known reinforcing filler is basalt fiber. The use of this filler raises the question of increasing the adhesion of fibers with the rubber matrix. The paper presents a method of increasing adhesion between the adhesive and the substrate by surface treatment of the reinforcing basalt fabric with a rubber mixture pre-dissolved in phenylmethane (toluene). The obtained material was studied for elastic-strength properties, where the wear resistance decreased by 12% and the hardness increased by 5%. The microstructure of low-temperature chips and tested specimens were also analyzed. According to the results of the tensile tests, there is a general trend of increasing the tensile strength values by 1.3 times and decreasing the relative elongation values by up to 2 times compared to the reinforced rubber. In the delamination test, this material showed an increase of 16.4%.

Thermoplastic vulcanizates combine the properties of elastomers during exploitation and thermoplastics during processing. Thermoplastic vulcanizates based on binary blends «polyolefin + thermoplastic» has wide application. The use of three or more polymer components of different polarities can provide the creation of more complex compositions that simultaneously possess a whole complex of properties, however, entails difficulties associated with the combination of multipolar components and the use of combining additives that increase the interaction between them.

This paper investigates the adhesive strength of elastomeric matrix materials and reinforcing fabrics. The production of materials based on two incompatible components to obtain a composite and, in turn, improve its physical and mechanical properties, is a pressing issue. The effect of surface treatment on high-modulus fabrics and rubbers based on butadiene rubber SKD-B was studied. Two methods were used to increase adhesive strength. The first method involved treating the surface of basalt, glass, and carbon fabrics with a rubber mixture to improve contact with the rubber layers. The second method involved applying a primer and Chemocil adhesive, which is used to bond rubber to metal. During the delamination test, an increase in adhesive strength compared to the original rubber was observed in the sample with Chemocil surface treatment.