Atmospheric Pressure Plasma Coating of Wood and MDF with Polyester Powder
AbstractIn this study, polyester powder based on iso- and teraphthalic acid was deposited with an atmospheric plasma jet. The powder was fed into the effluent plasma zone and deposited on European beech wood (Fagus sylvatica L.), Grand fir (Abies grandis Lindl.) and medium density fiberboard (MDF). The substrates were annealed subsequent to the coating process. To exclude decomposition of the polyester layers by the plasma treatment, the surface chemistry of the layers has been examined by X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared spectroscopy (FTIR) and compared with the polyester powder reference. Furthermore, topographical investigations were carried out using laser scanning microscopy (LSM). Adhesive strength of the layers was evaluated by dolly test and gloss measurements with a goniophotometer. The deposited layers showed no chemical changes compared to the reference. The adhesive strength of the layer met practical requirements of >1 MPa. It was demonstrated that the deposition of a macroscopic layer is possible without a pretreatment or the usage of additives. Therefore this coating process by atmospheric pressure plasma for wood and wood based materials could represent an environmental-friendly alternative to conventional coating methods. View Full-Text
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Köhler, R.; Sauerbier, P.; Militz, H.; Viöl, W. Atmospheric Pressure Plasma Coating of Wood and MDF with Polyester Powder. Coatings 2017, 7, 171.
Köhler R, Sauerbier P, Militz H, Viöl W. Atmospheric Pressure Plasma Coating of Wood and MDF with Polyester Powder. Coatings. 2017; 7(10):171.Chicago/Turabian Style
Köhler, Robert; Sauerbier, Philipp; Militz, Holger; Viöl, Wolfgang. 2017. "Atmospheric Pressure Plasma Coating of Wood and MDF with Polyester Powder." Coatings 7, no. 10: 171.