玄武岩纤维/酚醛树脂复合材料燃烧特性研究OA

The cone calorimeter and scanning electron microscope were employed to investigate the combustion characteristics of basalt fiber/phenolic resin composites under different fire conditions,and the fire hazard of the composites was evaluated.The results showed that the composites were not ignited when the heat radiation intensity was 30 kW/m2.With the increase of heat radiation intensity,the CO,CO2 and total smoke release amounts gradually increased;the ignition time of the composites progressively advanced.Both the heat release rate and peak heat release rate increased,with the peak occurrence time advancing.In addition,the mass loss rate after combustion increased,while the overall mass loss magnitude remained below 10%.The fire hazard of the composites increased with rising heat radiation intensity.The overall structure of basalt fiber/phenolic resin composites remained intact after combustion,and the presence of basalt fibers and flame retardant fillers effectively inhibited the pyrolysis and combustion of the composites.