PROPERTIES OF WASTE FIBER/POLYURETHANE FLAME RETARDANT INSULATION BOARD

Authors : Lv LIHUA, Yingjie LIU, Congtan LI, Jing GUO, Fang YE

Pages : 152-161

Doi:10.32710/tekstilvekonfeksiyon.570713

View : 48 | Download : 10

Publication Date : 2019-06-30

Article Type : Research Paper

Abstract :In order to solve the recycling problem of waste fibers, waste fiber/polyurethane flame retardant insulation board was prepared by blending- hot pressing method with waste cotton fiber, discarded polyurethane, AC insert ignore into journalissuearticles values(azodimethylamide); foaming agent and APP insert ignore into journalissuearticles values(ammonium polyphosphate); flame retardant as raw materials. The necessary conditions to the optimized technology was mass fraction of waste fibers 10%, mass fraction of AC foaming agent 3%, mass fraction of APP flame retardant 15%, hot pressing pressure 7MPa, hot pressing temperature 180℃, length of waste fibers 20mm, mixing temperature 175-180℃, hot pressing time 8min, cool-down time 2h, which were optimized by thermal conductivity coefficient, limit oxygen index and mechanical properties.The flame retardant mechanism and effect of the waste fiber/polyurethane flame retardant insulation board was analyzed by TGA insert ignore into journalissuearticles values(Thermogravimetric Analysis); and residual carbon ratio. Finally, the abaqus finite element simulation software was used to simulate the thermal conduction process and verify the correctness of model.
Keywords : Waste Fiber, Flame Retardant Insulation Board, Flame Retardant Mechanism, Finite Element Simulation, Thermal Insulation Mechanism

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