Fire performance and post‐fire mechanical properties of polymer composites coated with hybrid carbon nanofiber paper

Abstract

In this study, glass fiber reinforced polyester composites were coated with carbon nanofiber/clay/ammonium polyphosphate (CCA) paper and carbon nanofiber/ exfoliated graphite nanoplatelets/ammonium polyphosphate (CXA) paper. The composites were exposed to a heat flux of 35 kW/m 2 during the cone calorimeter testing. The testing results showed a significant reduction in both heat release rates and mass loss rates. The peak heat release rate (PHRR) of CCA and CXA composite samples in the major decomposition period are 23 and 34% lower than the control sample, respectively. The time to reach the PHRR for the CCA and CXA composite samples are $ 125% longer than the control sample. After the composite samples were exposed to heat for different time periods, their post-fire mechanical properties were determined by three-point bending testing. The threepoint bending testing results show that the composite samples coated with such hybrid papers exhibit more than 20% improvement in mechanical resistance at early stages of combustion. The mechanism of hybrid carbon nanofiber paper protecting the underlying laminated composites is discussed.

Modelling heat transfer in an intumescent paint and its effect on fire resistance of on-board hydrogen storage

“…Also, results showed that the ablative elastomer exhibited a better fire protective performance at low temperatures, whereas the intumescent coating showed a better performance at high temperatures. Zhuge et al [8] developed a carbon nano-fibre based nano-paper and compared its flame retardant efficiency by thermogravimetric analysis and cone calorimeter tests. They found that the nano-paper acted as a thermal barrier, forming a protective char layer.…”

Fire reaction and post-fire impact properties of flax fibre reinforced composites containing intumescent flame retardants

“…The effects of heat flux and heat duration times on the fire structural performance, which is mostly related to the tensile, flexural and compressive properties were reported in various papers. [20][21][22][23][24][25] On the other hand, very few researchers have investigated the post-fire mechanical properties of natural fibre reinforced composites. Rajaei et al investigated the effects of heat-induced damages on impact properties of a flax fibre epoxy composite and compared its performance with one of glass fibre counterpart; 26 however, they did not investigate any thermoplastic composites.…”

Fire performance of continuous glass fibre reinforced polycarbonate composites: The effect of fibre architecture on the fire properties of polycarbonate composites

“…Although the thermal and combustion properties of many thermoplastic matrices are to some extent known, 1,2 the fire performance of thermoplastic composites is still an active area of research. 3–12 In addition to improving mechanical properties, fibre reinforcement can be used to affect the behaviour of a polymer matrix during a fire. 13…”