Effect of external heat flux on the thermal diffusivity and ablation performance of carbon fiber reinforced novolac resin composite

Improvement of ablation and heat shielding performance of carbon fiber reinforced composite using graphite and kaolinite nanopowders

“…The back surface temperature was recorded as it varied with time and data were obtained in the test duration time of 90 min. These data were used to calculate the thermal diffusivity according to inverse solution technique of heat transfer modeling [14].…”

“…In this work, a micron-sized kaolinite filled novolac/short carbon fiber composite, introduced in our previous paper [14], was selected as a reference sample. In Ref.…”

“…In Ref. [14], the effect of external heat flux on the thermal diffusivity and ablation performance of carbon fiber reinforced novolac resin composite was investigated. Therefore, here the matrix of this composite was improved using kaolinite and graphite nanopowders instead of the micron-sized kaolinite.…”

Thermo-protective properties of polymer composites with nano-titanium dioxide

“…In polymeric composites, when the ablation temperature T a is exceeded, there are endothermic reactions related to the thermal decomposition of the matrix material, which results in effective specific heat c p with high values. In their pure form, polymers are good ablative materials (Bahramian and Kokabi 2009;Bakar et al 2016) with a very low heat conduction coefficient k. However, due to their softening, low density and low thermal stability as well as the porosity and brittleness of the ablative layer formed in the ablation process, they need to be modified with mineral fillers (Bahramian and Kokabi 2009;Lombardi et al 2012) or reinforcing fibers (Jackowski 1986;Bahramian 2013;Kucharczyk 2012;Patton et al 2002) increasing their thermal stability, resistance to heat flow, and consequently the thermal insulation of the composite.…”

Effect of Glass-Fabrics and High-Melting Powder Fillers on Thermal Protective Properties of Thermosetting Laminates

“…Good protective (fire-and thermal-buffer) properties can be attained using composite polymer coatings with typical ablative composite matrices (phenol resins [12][13][14], epoxy resins [15][16][17][18][19]) including fillers increasing thermal stability of a composite [12][13][14][15][16][17][18][19][20]. Once the ablation temperature of ~ 200°C is exceeded by polymer resins, endothermic reactions are initiated that raise their effective specific heat considerably.…”