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Polyethylene is used plastic in the world, one linear low density polyethylene (LLDPE) is a commonly used commercial plastic. The linear low density polyethylene has good mechanical ductility, chemical resistance, low density, low toxicity, good electrical insulating properties and good processing properties, the linear low density polyethylene is widely used for wire and cable, construction pipes and so on. However, the LLDPE is an easy burning plastics, the oxygen index (LOI) was only 17.0%. In order to reduce the combustion performance of the LLDPE, in recent years, various flame retardants are used for LLDPE. Wherein the intumescent flame retardant has been widely applied to the LLDPE. Due to the the LLDPE of non-polar materials, have a higher degree of crystallinity, so the LLDPE and polarity of the poor compatibility of the flame retardant. Modification treatment, the introduction of polar groups to the LLDPE has good compatibility with flame retardant, thereby enhancing the LLDPE flame-retardant effect is today a hot research. The papers themselves prepared one kind the LLDPE / EAEM blends flame-retardant materials. Ethylene - acrylic ester - maleic anhydride (EAEM) as the elastomer was added to the LLDPE, and to improve the dispersibility of the intumescent flame retardant. Department of the laboratory designed and synthesized a triazine charring agent (CFA) and ammonium polyphosphate (APP) mixed, then add a small amount of flame retardant synergist combined into expansion flame retardant (IFR). Flame retardant synergist for organic montmorillonite (OMMT) and silicon resin (SR). Configured as a new type of expansion is a flame retardant added to the the LLDPE / EAEM material. APP and CFA intumescent flame when the oxygen index and vertical combustion data shows the proportion of 3:1, the flame-retardant effect is most obvious. Flame retardant synergist flame-retardant effect of material played a certain role, but only when the OMMT and SR quality expansion accounted for 6% of the total amount of the flame retardant, flame retardant synergist best organic Mongolia The bentonite (OMMT) is more obvious in improving the flame retardancy role. In this thesis, the mass ratio of the of LLDPE with EAEM the LLDPE / EAEM blends of the various properties of the material, LLDPE / EAEM 8:1, materials performance. In this thesis, the oxygen index, vertical combustion analyzer, tester mechanical properties, thermal gravimetric analysis, cone calorimeter, scanning electron microscope and other instruments intumescent flame retardant LLDPE / EAEM materials flame retardant properties, mechanical properties, thermal degradation The behavior of the combustion behavior, the morphology of the carbon residue conduct a comprehensive evaluation and research. EAEM make intumescent flame retardant in the material uniformly dispersed to improve the flame retardant effect. IFR added makes the LLDPE / EAEM flame retardant. The synergist montmorillonite and a silicone resin added makes the flame retardant effect of the material is further improved, and can significantly shorten the time to ignition. Significant improvement of the material of the heat release rate, smoke release rate and total heat release, CO emission. The TGA results show synergist addition of initial degradation of the material in advance, the study also found that the synergistic agents capable of catalyzing promote thermal degradation of flame-retardant materials, and improve the final expansion retardant materials into carbon amount and help formation of more stable, the dense carbon barrier layer, thereby improving the flame retardant properties of the LLDPE / EAEM.
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