The invention relates to organic phosphinic acid
metal salt containing a
triazine ring and a preparation method thereof. The structure of the compound is represented as follows: FORMULA, wherein M is a
metal ion of Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Ce, Sn, Fe, Mn, Li, Na or K; and n is a valence of the M. The preparation method comprises the following steps of: reacting the phosphinic acid or
alkali metal salt of the phosphinic acid with
triallyl isocyanurate and
ethylene in the presence of a
radical initiator so as to obtain organic phosphinic acid or
alkali metal salt of the organic phosphinic acid containing the
triazine ring; and then, reacting with a
metal compound of Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Ce, Sn, Fe and Mn so as to obtain the relative organic phosphinic
acid salt containing the
triazine ring. The compound can be used as a
fire retardant of nylon,
polyester,
polyurethane,
epoxy resin, glass fibre reinforced resin, coat and the like. The preparation method is simple in process and easy to perform industrial production.