крейда

Investigation of the influence of vegetable oil content on the properties of polymer composite materials

При виконанні даної роботи представлено оцінювання можливості використання великої кількості (по відношенню до маси наповнювача) відходів харчової промисловості для модифікування мінеральних наповнювачів та пластифікації полімерів, їх подальшого застосування для одержання наповнених полімерних композитів, а також визначення впливу модифікованих наповнювачів на фізико-механічні властивості таких полімерних композитів.

MATERIALS AND ARCHITECTURAL DETAILS FROM NATURAL AND ARTIFICIAL STONE OF KING DANIEL ROMANOVICH’S 13th CENTURY RESIDENCE IN CHOLM

Materials obtained during archaeological excavations on the place of castle in the city of Cholm (today Chełm in Poland), in the area of king Daniel’s 13th century residential complex, have been subject to examination. They are in the forms of bricks and glazed tiles, as well as sizeable shapeless and purposeless accumulations indicating post-manufacturing remains. The materials are white, green and multi-colored. They refer to Halychian alabasters and green glaukonitite from Cholm, which were originally used there. The examination of white materials was performed.

USAGE OF WASTE VEGETABLE OIL FOR MAKING POLYMER COMPOSITES

In the food industry and public catering establishments of Ukraine, a sufficiently large amount of oil is left, which was first used during the roasting and cooking of various food, such as vegetables and fish during canning, french fries, pancakes, pies and the like. At high temperatures during contact with the food and moisture contained in it, the processes of thermal decomposition, oxidation, polymerization and so on, the oil accumulates harmful to man substances such as aldehydes, acids, ketenes, polycyclic compounds, etc. In this case, the oil becomes unsuitable for further food use.