FORECASTING METHOD OF THERMAL RESPONSE FOR FLAME RETARDANT MODIFIED GLASS FIBER EPOXY RESIN

Abstract

Abstract: In order to study the thermal response of flame-retardant modified glass fiber epoxy resin composites in fire, considering the pyrolysis process in fire, the thermal response equations were established, and a finite difference method was used to calculate and analyze the material′s internal time-dependent temperature progressions and carbonization subjected to one-sided heat flux. The theoretical results from the established nonlinear thermal response equations were validated against experimental data and a good agreement is observed. Flame retardant modified glass fiber epoxy resin under the same heat flow conditions, the internal temperature of the material is slightly lower than the unmodified material. With the increment of the depth, the time flame retardant modified glass fiber epoxy resin reaching the pyrolysis temperature increases and the carbonization process slows down. The residual mass fraction of materials at different depth in the pyrolysis reaction zone is slightly different at the same temperature, the residual mass fraction decreases and the degree of carbonization increases as the deeper the position rose.

Key words: glass fiber epoxy resin, thermal response, flame retardant, carbonization, finite difference method

CLC Number:

TB332

FENG Zhen-yu, FAN Mao-hua, FAN Bao-xin, WANG Na-si-dan. FORECASTING METHOD OF THERMAL RESPONSE FOR FLAME RETARDANT MODIFIED GLASS FIBER EPOXY RESIN[J]. Fiber Reinforced Plastics/Composites, 2019, 0(9): 32-37.

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