Preparation and characterization of polyurethane porous coating;

In order to modify the surface biologic characteristics of 316L stainless steel, based on the theory of phase inversion, we prepared PU compact and porous coatings in the help of water vapor.

Considered the liquid transverse suction effect at the porous layer interface,mathematical models was presented to investigate the influences of the porous layer charac-teristic parameters on condensation heat transfer.

The new sintered process of porous coating tubes with composite powder based on copper powder in continuous sintering furnaces is researched and their performances are measured in this paper.