Research of the intramolecular interactions and structure in epoxyamine composites with dispersed oxides

The Influence of Inorganic Fillers on the Protective Properties of Epoxy Polymer Composite Materials

“…It is connected with the increase of the inter phase interaction intensity according to the acid-base mechanism, where, in the role of the base, the filler surface is presented, and the role of the acid is presented by an epoxy polymer. Such kind of conclusion is brought into accordance with the research results [23,34], which demonstrate that an epoxy resin molecules are characterized by week acid properties. Thus, generalizing the determined regularities of the inorganic filler influence on the durability of the filled epoxy composites in aqueous mediums, it can be stated that, during the analysis, it is necessary to consider the following factors: structural (considering the size of the fragments and the volume fraction), chemical-mineralogical (considering the chemical and mineralogical composition) and surface (considering the chemical nature of the surface centers).…”

“…It is evident, that the inter phase interactions exist in a filled polymer. They have an acid-base character and have an ability to affect the segmental mobility of the interstitial molecular links as well as the density of a formed network polymer [23]. Acid-basic character of interphase interactions is confirmed by the fact that the largest values of T g have composites with alkaline nature of the surfactants WU (pK a pot = 10.5) and KH (pK a pot = 9.1).…”

“…The resistance to open fire effect and high temperatures is determined by the structure endurance of the polymeric material net at all levels [19][20][21]. Inexpensive dispersed inorganic fillers are added to epoxy compositions with the aim to increase the economical and the eco-friendly value of the materials [22][23][24][25]. The dispersed inorganic fillers addition allows to regulate the technological properties of the compositions [17,26] and improve the physical and mechanical characteristics [18,27].…”

Determining the strength and thermal­, chemical resistance of the epoxy polymer­composite filled with basalt micronano fiber in the amount of 15–80 % by weight

“…The option to overcome the difficulties may be the manufacture of flat-shaped samples as part of a more complex geometric object. This is the approach used in works [12][13][14][15][16][17][18][19][20][21][22][23][24]. Study [9] shows the possibilities to strengthen the epoxy polymer with nanobasalt fiber, in the amount between 15 and 80 % by weight.…”

Analysis of tribological efficiency of movable junctions "polymeric­composite materials ‒ steel"

“…At the same time, the authors failed to define the value of their tribological efficiency in mating with metals. It is possible to improve safety of road transport by using a composite material that makes it possible to increase the level of crack-resistance of parts and enhance reliability of the examined tribosystems [37]. The authors did not analyze the ability of composites based on ultra-dispersed carbon powders to solve the experimental task.…”