Flame-retardant mechanism of magnesium oxychloride in epoxy resin

Abstract

Flame-retardant mechanism of magnesium oxychloride (MOC) in EP was investigated by limiting oxygen index (LOI), XRD, SEM, TG-DTG and DSC. The results show that MOC performed well as an inorganic flame-retardant in EP. When the content of MOC is 50%, the LOI of EP reaches 29.6% and mass of residual char reaches 9.6%. The flame retarde mechanism of MOC is due to the synergies of diluting, cooling, catalyzing char forming and obstructing effects.

Keywords

magnesium oxychloride / epoxy resin / flame-retardant properties / flame retarded mechanism

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