Polyurethane Coatings Reinforced by Halloysite Nanotubes
AbstractThe pencil hardness of a two-component polyurethane coating was improved by adding halloysite nanotubes to the recipe at a weight fraction of less than 10%. The pencil hardness was around F for the unfilled coating and increased to around 2H upon filling. It was important to silanize the surface of the filler in order to achieve good coupling to the matrix. Sonicating the sample during drying also improved the hardness. Scanning electron micrographs suggest that the nanotubes are always well immersed into the bulk of the film. With a thickness between 10 and 20 µm, the optical clarity was good enough to clearly read letters through the film. The films can be used in applications where transparency is required. View Full-Text
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Li, X.; Nikiforow, I.; Pohl, K.; Adams, J.; Johannsmann, D. Polyurethane Coatings Reinforced by Halloysite Nanotubes. Coatings 2013, 3, 16-25.
Li X, Nikiforow I, Pohl K, Adams J, Johannsmann D. Polyurethane Coatings Reinforced by Halloysite Nanotubes. Coatings. 2013; 3(1):16-25.Chicago/Turabian Style
Li, Xin; Nikiforow, Irina; Pohl, Katja; Adams, Jörg; Johannsmann, Diethelm. 2013. "Polyurethane Coatings Reinforced by Halloysite Nanotubes." Coatings 3, no. 1: 16-25.