Study on the preparation and synergistic flame retardancy of organic modified montmorillonite

Yuanyuan Meng, Wei-guang Gong*, Baicun Zheng


ABSTRACT: Organic modified layered silicate montmorillonite was prepared by solution intercalating with cetyltrimethylammonium bromide, which was characterized by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Modified montmorillonite was added to linear low density polyethylene (LLDPE) with intumescent flame retardant, their flame retardant properties were evaluated by Limiting Oxygen Index (LOI) and Thermogravimetric Analysis (TGA), and mechanical properties were tested simultaneously. The results showed that montmorillonite could not only improve the flame retardant effect, reduce the additive dosage of intumescent flame retardant, but also increase the mechanical properties of LLDPE.

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