Influence of boron bearing fillers on flame retardancy properties of huntite hydromagnesite filled ductile PLA biocomposites

Authors : Ayşegül ERDEM, Mehmet DOĞAN

Pages : 16-24

Doi:10.30728/boron.1135702

View : 37 | Download : 8

Publication Date : 2023-03-31

Article Type : Research Paper

Abstract :In this work, the flame retardant influences of colemanite and boron oxide are investigated in huntite-hydromagnesite insert ignore into journalissuearticles values(HH); containing plasticized poly insert ignore into journalissuearticles values(lactic acid); insert ignore into journalissuearticles values(PLA); biocomposites. The composites are characterized using limiting oxygen index insert ignore into journalissuearticles values(LOI);, horizontal insert ignore into journalissuearticles values(UL 94 HB); and vertical insert ignore into journalissuearticles values(UL-94 V); burning tests, mass loss calorimeter and thermo gravimetric analysis insert ignore into journalissuearticles values(TGA);. The addition of colemanite causes enhanced fire retardant performance with higher UL-94 V rating and LOI value and lower pHRR value. V0 rating and the highest LOI value is observed with the addition 1 wt % colemanite. When the concentration of colemanite reaches to 3 and 5 wt %, the samples get V1 rating. When the concentration of colemanite reaches to 5 wt %, pHRR and avHRR values are lower than those of the reference sample. The addition of boron oxide caused only improvement in LOI value. The highest LOI value insert ignore into journalissuearticles values(33.2); is observed in 5 and 10 wt % boron oxide containing samples.
Keywords : Huntit hidromagnezit, yanmazlık, kolemanit, bor oksit, poli laktik asit,

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