Study Of The Synthesis And Application Of Multiple Silicate Ester Flame Retardant

In recent years, the global flame retardants market demand has shown a rapid growthtrend, with the increasingly stringent legislation global flame retardant, firesafetystandards, industry instructions have been introduced as well as the environmentalprotection is more and more, especially for the new, efficient and environmentallyfriendly flame retardant demand more urgent. Due to the application of halogenated flameretardant in many ways was limited, but the halogenated flame retardantcomprehensive excellent costeffective, but alsodifficult to find suitable alternatives inmany aspects. The development of effective halogenated flame retardant has become oneof the most important research direction, the multielement synergistic flame retardant is aneffective way to achieve efficient flame retardant.Compounds composed of multi elements synergistic flame retardant in one of thetwo series of26kinds of unreported. High molecular compound13ring structure is thefirst in a series containing silicon, nitrogen, halogen flame retardant elements of the three,synergy from different flame retardant mechanism, the silicon and nitrogen element inburning through the silicon carbon layer to form the dense cellular swelling, halogenelements and auxiliary flame retardant three oxidation two antimony can produce flameretardant synergism exponentially, thus can exhibit high flame retardant efficiency;compound13kinds of symmetric structure of second series of silicon containinghalogen flame retardant, double the synergistic flame retardant efficiency, promote theformation of char layers, overcome the melt dripping is a kind of efficient flame retardant.Processing method of reaction conditions and, to seek the best technological conditions.Through the FTIR,1H-NMR, structure and properties of the differential thermal analysisand limiting oxygen index and other technical characterization of products, theresults showed that the synthesized product structure and product structure isconsistent.In addition, four chlorinated silicon is a series of two common raw material, thepolysiliconindustry produce many byproducts can’t handle, and the comprehensive utilization of fourchlorinated silicon has become a bottleneck restricting the technology of photovol taic industry in china.The synthesis of raw materials by using the by-product of polysilicon industry fourchlorinated silicon, in order to solve the problem of comprehensive utilization ofby-product of polysilicon has opened up a new way, with the environmental and economicbenefits of good.