Halogen-FreeWaterborne Polymeric Hybrid Coatings for Improved Fire Retardancy of Textiles
Makaleler > Tam Makale · 2023
Yazarlar: Mehmet KÜÇÜK, Onur YILMAZ, Raluca Nicoleta Darie-Nita, Catalina Natalia Cheaburu-Yilmaz
POLYMERS, SCI Expanded İndekslerine Giren Dergi, Uluslararası, 2023, cilt 15, ss 4496-4510
Özet
<p>Wildfires are becoming more intense and more frequent, ravaging the habitations and</p><p>ecosystems in their path. One solution to reducing the risk of damage to buildings and other structures</p><p>during a fire event is the use of fire-retardant coatings that can stop or slow down the spread of</p><p>flames, especially for textile materials. The present study focuses on the preparation and application</p><p>of halogen-free boron/bentonite-based polymeric fire-retardant (FR) hybrid coating formulations</p><p>for fabrics such as cotton (CO) and polyester (PE) fibers. For the preparation of FR composites, two</p><p>types of boron derivatives, disodium octaborate and zinc borate, were used in combination with</p><p>sodium bentonite. A styrene-acrylic copolymer was specifically synthesized and used as a coating</p><p>binder for FR components to apply on fabrics. The properties of the synthesized copolymer and FR</p><p>composites were characterized with a particle size analysis, FTIR spectroscopy, a dynamic mechanical</p><p>thermal analysis (DMTA), and rheological measurements. The obtained hybrid composites based</p><p>on styrene-acrylic copolymers and two different inorganic fillers were applied on cotton (CO) and</p><p>polyester (PE) fabrics with a screen-printing technique, and the flame retardancy performance of the</p><p>finished textile samples was investigated by means of flame spread and limit oxygen index (LOI)</p><p>tests. The findings showed that the FR-composite-coated fabrics had higher LOI values and much</p><p>decreased flame spread rates in comparison with uncoated ones. Among the boron derivatives,</p><p>the composites prepared with disodium octaborate (FR-A) had much more pronounced LOI values</p><p>and decreased flame spread behavior in comparison with the composite with zinc borate (FR-B).</p><p>When compared to a commercial product, the FR-A composite, in conjunction with the specially</p><p>synthesized polymer, demonstrated commendable fire retardancy performance and emerged as a</p><p>promising candidate for a halogen-free waterborne fire-retardant coating for fabrics.</p>