Короткий опис(реферат):
We investigated the kinetic and thermodynamic properties
and mechanism of the protection action of compositions prepared
using secondary raw material (with utilization of the chemical industry
waste). The composition contained synergist additions (SA):
biheterocycles (imidazole derivatives) and an active polar adsorbent
(zeolite). The protection action was studied under the conditions of
technogeneous impact. The synergists were selected taking into account
the following main criteria: electronic structure of the molecules,
cations and anions of SA; thermodynamic characteristics (ionization
potential, changes of the resonance potential, work function and
dipole moment); and coefficients of corrosion protection. It is shown
that SA and chemical active fragments of the utilized waste components
promote intramolecular and intermolecular synergism of the protection
action of compositions. The correlation dependences of the protection
efficiency of steel on the electronic and thermodynamic characteristics
of SA are established. The analysis of the experimental results
performed on the basis of electrochemical kinetics and physicochemical
mechanics of materials demonstrates that the synergetic protection
composition ensures a complex action. It provides both an effective
corrosion protection towards the corrosion-mechanical fracture
(corrosion cracking and low-cycle fatigue that are main causes of
industrial accidents and ecological catastrophes) and an effective
cleaning of technical and natural environments from heavy metals.
The action mechanism of synergetic protection compositions is
associated with the presence of polydentate ligands in their structure
that promote metalochelation reactions. In addition, the protection
mechanism is connected with the activity of polar adsorbent, zeolite,
the adsorption of the macrocycle of metalochelates and the ion
exchange of cations of heavy metals.
Суть розробки, основні результати:
Захисна синергічна композиція комплексної дії на вторинній сировині / С. Д. Цибуля, В. Г. Старчак, К. М. Іваненко, Н. П. Буяльська, І. А. Костенко, Г. М. Мачульський // Voprosy khimii i khimicheskoi tekhnologii. - 2019. - № 2. - С. 127-134.