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Plasma deposition of adhesion-promoting polymer layers onto polypropylene for subsequent covering with thick fire retardant coatings |
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| Authors: | Moustapha E Moustapha Jörg F Friedrich Simone Krüger Mahmoud Farouk |
| Affiliation: | 1. Chemistry Department, College of Science and Humanities, Salman bin Abdulaziz University, Alkharj, Saudi Arabia;2. Polymer Technique and Physics, Technical University Berlin, Fasanenstrasse 90, Berlin 10623, Germany;3. Department 7.5, Federal Institute for Materials Research and Testing (BAM), Berlin 12200, Germany;4. Faculty of Science, Chemistry Department, Assiut University, New Valley, Egypt |
| Abstract: | Melamine resins were used as 50-μm-thick fire retardant coatings for polypropylene (PP). Preceding deposition, low-pressure plasma polymer films of allyl alcohol were coated onto PP to improve the adhesion between PP and melamine resin coatings. The efficiency of such fire retardant coatings was confirmed by flame tests. The plasma-deposited polymer and the dip-coated melamine resin films were characterized by Fourier transform infrared-attenuated total reflectance spectroscopy and X-ray photoelectron spectroscopy (XPS). The adhesion of coatings was measured using a 90° peel test with a doubled-faced adhesive tape. To detect the locus of failure, the peeled layer surfaces were inspected using optical microscopy and XPS. Thermal properties of PP thick melamine resin-coated films were analyzed by thermogravimetric analysis. |
| Keywords: | melamine precursors plasma polymerization allyl alcohol polypropylene flame retardants curing |