کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
692303 | 1460515 | 2015 | 9 صفحه PDF | دانلود رایگان |
• Plasma coatings based on diethylphosphatoethyltriethoxysilane were investigated.
• Molecular structures based on polysiloxane and polyphosphate were detected.
• Fire-retardant properties were tested using cone calorimetry.
• A significant increase in time to ignition was observed for coated polymer samples.
Protective coatings from diethylphosphatoethyltriethoxysilane (DEPETS) have been deposited on different polymer substrates in a plasma discharge operated at atmospheric pressure. Plasma polymer chemistry and structure were characterized by means of Fourier transform infrared spectroscopy (FTIR), laser desorption ionization-mass spectrometry (LDI-MS), nuclear magnetic resonance (NMR) and scanning electron microscopy (SEM). A chemical structure of the plasma polymer has been proposed based on the coating molecular characterization. Coatings were deposited on polycarbonate (PC) and polyamide 6 (PA6) substrates. The flame retardant properties of coated substrate samples were assessed using cone calorimetry and compared to those of bare substrates. A significant increase in the time to ignition (TTI), up to +143%, was recorded after coating deposition due to the formation of a high-performance barrier layer at the surface of both polymer substrates.
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Journal: Progress in Organic Coatings - Volume 88, November 2015, Pages 39–47