Deposition of Polymer Melts

For this group of coating application techniques it is typical to employ powerful heat sources to combine article heating with the polymer melting stage. This process of coating formation from polymer particles in the viscous-flow 

Another group of problems arising in coating deposition from polymer melts is connected with their low thermal stability. The onset temperature of thermally oxidative destruction of structural thermoplastics is much lower than the temperature of the gas flows transporting molten particles to the article. The particles undergo ablation during transportation, which means that a part of the substance is carried away from the surface layer by the 

Unstable inhibitors can be introduced into the polymer coating in the instance of its formation on the substrate (position 7). 

The gas-flame procedure of coating deposition consists of letting the gas-polymer flow pass through a gas jet flame that simultaneously heats the article. Under the action of the high-temperature flow, polymer particles transfer into the viscous-flow state, collide with the article surface and coalesce, thus forming a coating. 

The gun is useful in depositing homogeneous coatings from a mixture of a pol3Tuer powder with Cl [55] without direct contact between the flame and powder. It is compact and easy to handle, can be used in field conditions and does not necessitate any special equipment for preparation of the mixture. 

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