Abstract
The work is devoted to the deposition of polymer powder materials by cold spray method. Preliminary experimental results show that although an increase in the working air temperature leads to a noticeable increase in the deposition efficiency of thermoplastic (up to 0.05), it still remains low for cold spray. In the future, the proposed method for applying road marking will allow to obtain a coating with high wear resistance, increased service life, which can be used in various climatic zones in the temperature range from -40 °C to +40 °C, which will allow replacing water and solvent based paints with least service life.
Highlights
Horizontal marking of the roadway is one of the most important technical means of organizing traffic, ensuring its safety
Most often road markings are applied with AK-511 paint (GOST R 52575-2006)
The advantage of thermoplastic materials over paints is that the applied layer thickness can be increased to 15–40 mm, which allows to extend the life of the road marking
Summary
Horizontal marking of the roadway is one of the most important technical means of organizing traffic, ensuring its safety. The advantage of thermoplastic materials over paints is that the applied layer thickness can be increased to 15–40 mm, which allows to extend the life of the road marking. Cold spray method developed at the ITAM SB RAS [11] makes it possible to obtain coatings from metals, alloys, metal mixtures with ceramics and polymers while maintaining the structural and phase composition, including at the nanoscale. Cold spray has several advantages over the well-known gas-thermal methods, namely: lack of thermal effects on particles and substrate; obtaining composite coatings while preserving the properties inherent in the original powder material, including at the nanoscale; ease of implementation, the absence of energy-intensive nodes, a high resource of components of the installation; the ability to collect and reuse powders, environmental friendliness
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