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The aim of the study was to investigate selected properties and structure of polymeric material modified with hard coal ash. The investigation provides information on the types of modifications due to physical and chemical changes and analysis of selected research methods. The study included polymer structure testing, ball hardness determination, Shore‘s hardness determination, tensile strength determination, crystallinity and phase transition temperature by differential scanning calorimetry, thermal analysis of polymeric materials by dynamic mechanical thermal analysis and colorimetric method. From the presented research it can be stated that the higher the content of hard ash in polyethylene, the harder it becomes, although less resistant to stretching. The addition of ash lightly affected the degree of crystallinity. The last stage of the study was to analyze the surface resistance depending on the difference in the amount of filler. The important effect of the increase in ash content of hard coal was a significant change in properties of composites. In summary, the intended goals were presented in the paper.

The Research of Selected Properties and Structure of Polymeric Material Modified with Hard Coal Ash