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In recent years, environmental friendly intumescent flame retardant (IFR) and its flame retardant technology has become a hot research field . IFR mainly by the carbon source ( such as pentaerythritol ) , acid source ( such as ammonium polyphosphate ) and gas source ( such as melamine ) consists of three parts , divided into mixed and elemental type. Where there is mixed IFR hygroscopic , poor thermal stability , compatibility with the polymer difficult shortcomings . IFR elemental type can effectively solve these problems, but there are elements form a single , higher cost disadvantages. Boron is a toxic element , boron compounds in the IFR as a dehydrating agent partially replace phosphorus compounds and boron, phosphorus, nitrogen has a synergistic effect. Of boron rich in resources, the introduction of boron in the IFR can reduce raw material costs , is conducive to the commercialization of flame retardants . In this thesis, synthesis of a boron , phosphorus , nitrogen elemental type IFR - melamine phosphate borate (MPB), with IR , elemental analysis and other methods were used to characterize its structure . Studied the material ratio, reaction temperature, solvent , reaction time on the yield of MPB to determine the optimum conditions of MPB . Studied by oxygen index MPB / epoxy (EP) (MPB / EP) and to investigate the flame retardancy of MPB retardant mechanism . Studies show that , MPB superior to commercially available flame retardant melamine phosphate (MP) , and boric acid melamine (MB). Nanoparticles have large surface area and other characteristics, has the volume effect and surface effect, can effectively improve the mechanical properties and flame retardance . In order to improve the flame retardancy of MPB , the paper prepared by in situ generation of nano magnesium hydroxide / MPB (nano-MH/MPB) nanocomposite intumescent flame retardant , with IR, EDAX, XRD and other methods was carried out characterization . The effects of reaction temperature, reaction time on the Mg (OH) 2 grain size . Study of Mg (OH) 2 with MPB ratio on nano-MH/MPB/EP retardant properties. By thermal gravimetric analysis (TG) and nano-MH/MPB/EP burning cinders infrared analysis, preliminary discussed retardant mechanism .
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