DEVELOPMENT OF EPOXY COMPOSITES WITH PARTICLES OF LITHIUM CARBONATE AND NICKEL CARBONATE TO REPAIR PARTS OF POWER INSTALLATIONS OF TRANSPORT EQUIPMENT
Abstract
On the basis of tests of thermal properties of epoxy composites filled with microfine lithium carbonate Li2CO3 carbonate and nickel NiCO3, using modern research methods set permissible limits of temperature, at which it is possible to implement the developed materials. The thermal expansion coefficient (α), heat resistance (T) and thermal of epoxy composites. We set the absolute values of the thermal expansion coefficient of materials which can be used in different temperature ranges. The method of differential thermal and thermogravimetric analysis studied the thermal stability of materials and structural
characteristics as the temperature increases. It is found that the formation of composite materials with enhanced thermal properties, it is advisable to use as a filler in an amount of Li2CO3 q = 0,5 %. This material is characterized by the highest activation energy, resistance to structural change at the highest temperatures and intense interaction of the functional groups of the filler with an epoxy oligomer with the structure formation at the molecular level, all of the materials.
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