Қышқыл ортадағы аса жоғары молекулалы полиэтилен негізіндегі композиттің микроқұрылымы

Abstract

In this paper, the effect of an acidic environment on the structure of composite coatings based on supermolecular polyethylene (AJMPE) modified with a mineral filler in the form of diabase is investigated. It has been found that the introduction of 10% diabase into the AZHMPE matrix significantly increases the resistance of the composite coating to a corrosive environment, which is confirmed by the minimum level of swelling compared with composites with a high content of pure AZHMPE and filler.
Scanning electron microscopy (SEM) showed a uniform distribution of diabase in the coating structure and the absence of defects such as sintering and cracks. Methods of infrared spectroscopy (AFS) and X-ray diffraction analysis (XRD) revealed a decrease in the degree of crystallinity of coatings under the action of acids, but no significant changes in the chemical structure of materials were recorded, which confirms their resistance to chemical decomposition.
Composites containing 10% diabase showed better chemical resistance, which is associated with the formation of a barrier structure that prevents the diffusion of acids. The results obtained indicate the prospect of using AGMPE with diabase filler to create coatings resistant to aggressive environments.