Effects of Surface Modification of Mg(OH)<sub>2</sub> with Polysiloxane Oil and Silica Additive on the Flame Retardancy and Mechanical Properties of LDPE-Mg(OH)<sub>2</sub> Composites

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<jats:title>ABSTRACT</jats:title><jats:p>Composites of low density polyethylene (LDPE) and 40 wt% Mg(OH)<jats:sub>2</jats:sub> modified with several kinds of polysiloxane oils were prepared in order to evaluate the effect of the surface modification of Mg(OH)<jats:sub>2</jats:sub> on the mechanical properties and oxygen index of the composites. A composite containing Mg(OH)<jats:sub>2</jats:sub> modified with methylhydrogen polysiloxane oil showed an oxygen index of 23.8% O<jats:sub>2</jats:sub> and an elongation of 425%. These values were superior to other composites containing Mg(OH)<jats:sub>2</jats:sub> modified with other kinds of polysiloxane oils. The oxygen index could be enhanced up to 24.8% by co-addition of 5 wt% fumed silica as another flame retardant to the composite of LDPE and 35 wt% Mg(OH)<jats:sub>2</jats:sub> (modified with methylhydrogen polysiloxane oil), while fixing the total amount of the flame retardants at 40 wt%.</jats:p>

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  • MRS Proceedings

    MRS Proceedings 847 2004-01-01

    Springer Science and Business Media LLC

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