METHOD FOR FORMING POROUS SMART COATINGS AND EXPERIMENTAL-THEORETICAL METHOD FOR DETERMINING THEIR STIFFNESS PROPERTIES
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
Federal'nyy issledovatel'skiy centr «Kazanskiy nauchnyy centr Rossiyskoy akademii nauk»
2.
Federal'nyy Issledovatel'skiy Centr (FIC) Kazanskogo Nauchnogo Cantra (KNC) Rossiyskoy Akademii Nauk
Type:
Article
Pages:
from 125
to 129
Status:
Published
Received:
23.12.2025
Accepted:
23.12.2025
Published:
23.12.2025
Language:
Russian
Keywords:
PROTECTIVE COATINGS, SMART COATINGS, POROUS MEMBRANE, METHOD OF FORMING AND OPERATING A “SMART” COATING, APPROACH TO ASSESSING THE RIGIDITY PROPERTIES OF COATINGS
Abstract (English):
Protective film and membrane coatings are widely used in all industries. Smart (functional) coatings for various purposes are created, which allow to effectively solve many problems, in particular, the problem of corrosion protection. Due to the spread of 3D printing, the necessary properties of coatings are provided by developing complex composite structures that are formed directly on surfaces of complex shapes. The purpose of the article is to develop a method for forming a composite coating analogous to a "smart" coating, as well as a method for determining their rigidity properties. Coatings with built-in capsules containing various inhibitors are developed for corrosion protection. However, this poses difficulties in forming and filling capsules with various inhibitor substances. A method is proposed for creating a smart coating for corrosion protection using porous membranes that are saturated with an appropriate composition and covered with a thin film to preserve the inhibitor. When creating a smart coating, it is necessary to evaluate the mechanical properties of the coatings, as well as to study the patterns of change in the properties of the coatings under the influence of various factors, in particular, a change in the mechanical properties of a porous membrane when saturated with liquid. In the study of coatings with a complex structure, indentation methods and the standard uniaxial testing method are ineffective. An effective method is the experimental-theoretical method based on the synthesis of experimental data and theoretical relationships obtained from the nonlinear theory of thin shells. Based on this method, a wide range of studies have been carried out to assess the rigidity properties of various coatings. Based on the experimental-theoretical method, porous membranes were studied, in particular; water was used as a liquid for illustration. It was noted that membranes saturated with water for a short time lose tangential rigidity by an order of magnitude; at the same time, the rigidity of membranes saturated with water decreases with increasing pressure.
Protective film and membrane coatings are widely used in all industries. Smart (functional) coatings for various purposes are created, which allow to effectively solve many problems, in particular, the problem of corrosion protection. Due to the spread of 3D printing, the necessary properties of coatings are provided by developing complex composite structures that are formed directly on surfaces of complex shapes. The purpose of the article is to develop a method for forming a composite coating analogous to a "smart" coating, as well as a method for determining their rigidity properties. Coatings with built-in capsules containing various inhibitors are developed for corrosion protection. However, this poses difficulties in forming and filling capsules with various inhibitor substances. A method is proposed for creating a smart coating for corrosion protection using porous membranes that are saturated with an appropriate composition and covered with a thin film to preserve the inhibitor. When creating a smart coating, it is necessary to evaluate the mechanical properties of the coatings, as well as to study the patterns of change in the properties of the coatings under the influence of various factors, in particular, a change in the mechanical properties of a porous membrane when saturated with liquid. In the study of coatings with a complex structure, indentation methods and the standard uniaxial testing method are ineffective. An effective method is the experimental-theoretical method based on the synthesis of experimental data and theoretical relationships obtained from the nonlinear theory of thin shells. Based on this method, a wide range of studies have been carried out to assess the rigidity properties of various coatings. Based on the experimental-theoretical method, porous membranes were studied, in particular; water was used as a liquid for illustration. It was noted that membranes saturated with water for a short time lose tangential rigidity by an order of magnitude; at the same time, the rigidity of membranes saturated with water decreases with increasing pressure.
Keywords:
PROTECTIVE COATINGS, SMART COATINGS, POROUS MEMBRANE, METHOD OF FORMING AND OPERATING A “SMART” COATING, APPROACH TO ASSESSING THE RIGIDITY PROPERTIES OF COATINGS
PROTECTIVE COATINGS, SMART COATINGS, POROUS MEMBRANE, METHOD OF FORMING AND OPERATING A “SMART” COATING, APPROACH TO ASSESSING THE RIGIDITY PROPERTIES OF COATINGS
