Keyword: «rubber»

The effect of double and triple systems of accelerators consisting of 2-mercaptobenzothiazole (MBT), tetramethylthiuram disulfide (TMTD) and N,N'-diphenylguanidine (DPG) on the vulcanization, viscoelastic and technical properties of rubber compounds and vulcanizates based on Hydrin T6000 epichlorohydrin rubber was studied. It is shown that due to the manifestation of a synergistic effect on the formation of a spatial structure of a certain density and a set of cross-links of different sulfide content, the vulcanizate is characterized by the best set of properties, which has three classes of accelerators in its composition.

The results of a study UHMWPE fibers properties are presented. The fibers were oxidized with a chromium mixture for introduction into rubber. It is shown that during processing, the oxidation of UHMWPE occurs. In this case, aldehydes and esters are formed, an increase in the number of methyl branches in the macromolecule occurs.

The main problem for silicone rubbers is the selection of a plasticizer that is compatible with the rubber. Due to the nature of silicone rubber (its polarity), it is not possible to use almost all common plasticizers. Therefore, finding a plasticizer that would be compatible with siloxane rubber, while not negatively affecting the heat and fire resistant properties of rubbers based on siloxane rubber, is of scientific interest and practical significance. The influence of three plasticizers with different ratios of organic and inorganic (siloxane rubber destructate) components and their content on the physical-mechanical, thermal and fire resistance of siloxane rubbers has been studied.