Effect of carbon fiber amount and length on flame retardant and mechanical properties of intumescent polypropylene composites

ATABEK SAVAŞ L., MUTLU A., Dike A. S., Tayfun U., DOĞAN M.

JOURNAL OF COMPOSITE MATERIALS, cilt.52, sa.4, ss.519-530, 2018 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 52 Sayı: 4
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1177/0021998317710319
  • Dergi Adı: JOURNAL OF COMPOSITE MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.519-530
  • Anahtar Kelimeler: Polypropylene, carbon fiber, intumescent system, flame retardancy, mechanical properties, POLYPHOSPHATE PENTAERYTHRITOL MIXTURES, AMMONIUM POLYPHOSPHATE, POLYETHYLENE COMPOSITES, THERMAL-DEGRADATION, FIRE RETARDANCY, THERMOMECHANICAL PROPERTIES, REINFORCED POLYMERS, BIOCOMPOSITES, BEHAVIOR, FLAMMABILITY
  • Erciyes Üniversitesi Adresli: Evet

Özet

The effects of carbon fiber amount and length were studied on the flame retardant, thermal, and mechanical properties of the intumescent polypropylene composites. The flame retardant properties of the intumescent polypropylene-based composites were investigated using limiting oxygen index, vertical burning test (UL-94), and mass loss calorimeter. The mechanical properties of the composites were studied using tensile test and dynamic mechanical analysis. According to the flammability tests results, the antagonistic interaction was observed between carbon fiber and ammonium polyphosphate. The limiting oxygen index value reduced steadily as the added amount of carbon fiber increased. Mechanical test results revealed that the addition of carbon fiber increased the tensile strength and the elastic modulus as the added amount increased. No effect of carbon fiber length was observed on the flammability, fire performance, and tensile properties of composites, whereas the elastic modulus increased as the carbon fiber initial length increased.