Production of polymer based plasticizer under the influence of gamma rays

Obtaining modified plasticizers as a result of crosslinking, improving the properties of their elastomers as a result of plasto-elastic, thermomechanical, diffusion and anti-burning effect, obtaining new types of elastomer materials by modifying polymer-based oil products using radiation-chemical method are considered interesting fields of research. In this regard, one of the important problems is to obtain new types of modified polymer plasticizers and to study the effect on many properties of the elastomer composition, as a result of crosslinking and dissolving in the oil-polymer molecule by the influence of gamma rays, by dissolving industrial petroleum oils with polymers in different weight ratios by the radiation-chemical method. In the research work it has been used an oil-polymer mixture obtained on the basis of industrial oils (U-61, 10W40) under the influence of gamma rays. As an industrial oil 10W40 (Azerbaijan) and U-61 (Russia) oils are used to prepare a composition. The composition was prepared with the presence of low-molecular compounds (HCPX, DFM, ZnO, P324). It has been shown that the effect of 500 kGy dose on the composite based on NBR and isoprene rubbers changes the amount of gel in the polymer macromolecule (70%), causing changes in the plasto-elastic properties of the polymer-based oil (plasticizer). Along with the change in carbon rubber gel, there is a 15-20% increase in Mooney viscosity. With the growth of the gel, there is an increase in the density of the chain network in the macromolecule, which leads to a decrease in plasticity by 50% (0.40-0.20). As the polymer plasticizer has a good diffusion rate in the polymer chain, it leads to a 25% time saving in the process of mechanical dissolution of the components (10 min). It was determined that the vulcanized elastomer mixture with the presence of other low molecular compounds in the composite system from 5.0 wt.h polymer-oil plasticizer under the influence of radiation reduces the hardness from 2500 gs to 1200-1500. As a result of the analysis of the vulcanized thermoradiation elastomer mixture (423K+5min+500 kGy), it was determined that the change in the hardness of the elastomer leads to an increase in elasticity. Experimental analysis determined the chemical transformations occurring in the chain molecule at the molecular level as a result of the influence of the plasticizer of the polymer oil NBR at the molecular level and the physical-mechanical properties of the vulcanisates obtained by the radiation method.