678.01 Kimyo va kimyoviy texnologiyalar
STUDY OF THE STRUCTURE AND PROPERTIES OF POLYVINYL CHLORIDE FILLED WITH BAZALT MINERAL
Keywords:
polyvinyl chloride, basalt fibers, atomic force microscopy, physicochemical and mechanical propertiesAbstract
Background of the problem. At present, many scientific results are being achieved in our country on the use of local mineral fillers in the field of composite materials production. To date, the use of mineral products for the protection of polymeric materials and building horse fires and various aggressive environments is one of the urgent tasks.
Goal. The purpose of the work is to obtain heat-resistant and mechanically strong thermoplastic composite materials by filling polyvinyl chloride with basalt mineral.
Methodology. The physical and mechanical properties of filled polyvinyl chloride (PVC) composites were studied, the melt flow index was determined by the viscometric method, the bending strength was determined by the double-sided bending method, and the impact strength was determined by the Charpy method.
Scientific novelty. The physico-mechanical and thermophysical properties of polyvinyl chloride filled with basalt-containing mineral have been studied.
Obtained data .To obtain a composite material based on PVC, the content of fillers was changed from 1 mass to 5 mass parts. An assessment of the rheological properties of filled composites showed that with an increase in the basalt content, the fluidity of the compositions decreases, however, the resulting compositions can be processed by injection molding. The data obtained show that the optimal compositions are those containing: 5 wt.h. basalt fillers.
The developed materials were studied for flammability by the oxygen index method, and thermophysical properties by the DTGA method.
