The results of the research of the resistance of reinforced polymeric composite materials to hydro-abrasive action are presented. Hydro-abrasive wear research was carried out on a specially developed device that makes it possible to study the wear resistance of materials and coatings under impact conditions of loosely suspended abrasive particles simulating the flow of a hydro-abrasive medium. Composites based on polyester resin and polyurethane reinforced with ultra-high molecular weight polyethylene (UHMWPE) fibers and glass fibers were chosen as the objects for the study. An analysis of the intensity and nature of wear of these composites in compared with structural steel, UHMWPE and polyurea was carried out.The analysis of the obtained research results shows that UHMWPEis the most resistant to hydro-abrasive effects. However, the high cost and variation of the traditional technology of manufacturing composite products using UHMWPE as a lining material shows the advantage of using composite materials reinforced with oriented UHMWPE fibers.
Electrically conductive rubber on the basis of tyre regenerate and conductive carbon black (OMCARB CH85) is developed. It is shown that an increase in conductive carbon black concentration leads to an increase in tensile strength and Shore A hardness of the tyre regenerate. However, due to insufficient dispersion of carbon black, a decrease in relative elongation and resistance to abrasive wear is observed. A study of volume resistivity showed that the obtained rubbers are semiconductor materials. Dependence of specific resistance on temperature in a range from 10 to 80°C is constructed. It is shown that the effect of positive thermal coefficient is observed in all obtained samples.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.