Synergistic effects of zeolite and SiO2 on an intumescent flame retardant polypropylene containing the triazine macromolecule

Document Type

Article

Publication Date

6-1-2009

Abstract

The synergistic effects of zeolite 4A, silicon dioxide (SiO2) on an intumescent flame retardant polypropylene system contained triazine macromolecule and ammonium polyphosphate (PP/APP/CFA) were studied by using the limiting oxygen index (LOI), UL-94 test, thermogravimetric analysis (TGA), Cone calorimeter (Cone) and scanning electron microscopy (SEM). The experimental results demonstrate that the two kinds of silicone containing compounds can effectively enhance the flame retardancy of PP system contained triazine macromolecule based on LOI values and UL-94 ratings. The intumescent flame retardants obviously decrease peak heat release rate and smoke release rate. Especially, the silicone containing compounds can clearly reduce peak heat release rate and smoke release rate at second combustion process. This is mainly attributed to the better char layer structure obtained from intumescent flame retardant PP system contained triazine macromolecule and the silicone containing compounds.

Publication Source (Journal or Book title)

Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering

First Page

56

Last Page

59

This document is currently not available here.

Share

COinS