Evaluations of the Effects of Different Flame Retardants Combinations on Particleboards Produced Using Urea- Formaldehyde Resin

Gümüş N., Doğancı E., Aytaç A.

EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS/HOLZ ALS ROH - UND WERKSTOFF, cilt.1, sa.1, ss.1-3, 2024 (SCI-Expanded)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 1 Sayı: 1
  • Basım Tarihi: 2024
  • Dergi Adı: EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS/HOLZ ALS ROH - UND WERKSTOFF
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Agricultural & Environmental Science Database, CAB Abstracts, Chimica, Compendex, ICONDA Bibliographic, INSPEC, Veterinary Science Database
  • Sayfa Sayıları: ss.1-3
  • Kocaeli Üniversitesi Adresli: Evet

Özet

Currently, the use of flame-retardant chemicals is gaining importance in chipboard production. Melamine resins are preferred to produce chipboard to provide flame retardancy properties at a cost of approximately 2.5 times the urea-formaldehyde (UF) resin. In this study, UF resin was used to produce chipboards owing to its economic availability. Phosphate-based and inorganic flame retardants have been used to improve the flame retardancy of chipboards. In chipboard production, oak, pine, poplar, sawdust, and urea-formaldehyde resin are used as adhesives, and flame-retardant chemicals such as triphenyl phosphate (TPP), ammonium polyphosphate (APP), and calcium gluconate (CaG) were used. Flame-retardant chemicals were added to the chipboards in single and double compositions and prepared by the pressing method. Mechanical (tensile, bending, and surface strength), physical (humidity, density, formaldehyde emission), and fire (limiting oxygen index (LOI), cone calorimeter, and UL-94 vertical) tests were performed on wooden boards. The use of different types of flame retardants and their combinations in chipboards did not significantly change the mechanical properties. It was observed that the free formaldehyde emission rate decreased when the flame retardant was added, compared to the control sample. The chipboard samples with added flame-retardant chemicals entered the V-0 rating in the UL-94. The LOI values of the chipboard samples containing 50% CaG-50% APP and 50% TPP–50% CaG are 29.7% and 29.8%, respectively. In addition, the highest heat release rate (HRR) reduction was obtained for the chipboard sample containing 50% CaG - 50% APP.