1. forewordEpoxy resin is the matrix of colophony of advanced composite material that applies generally at present, the epoxy resin after solidify has good physical machine function, dielectric protecties, be able to bear or endure chemistry corrodes function, heat-resisting to reach stick receive performance, because this applies extensively at coating, electron,electric, composite material, building is built wait for many domains. To national economy development is having all in all effect, it is worldwide one of material of important careful high polymer inside. Of fire retardant of 2. epoxy resin system chooseOf epoxy resin flame retardant the method can be divided for filling model with the structure model two kinds. Former it is to point to join in epoxy resin all sorts of what do not share solidify reaction is flame retardant additive, and the made methodological; latter that has flame retardation is to point to introduce in epoxy resin flame retardant structure, achieve flame retardant the method of the purpose. 2.1 bittern fasten fire retardantBittern is fastened (bromic department and chloric department) fire retardant is a kind of fire retardant with very general application, its add a quantity to be compared relatively little, and flame retardant efficiency is taller, especially bromic department fire retardant [1] . Basically have 4 bromine benzene of aether of benzene of double phenolic A, 10 bromic couplet, 4 bromic adjacent new the fifth of the ten Heavenly Stem of 2 cresol anhydride, 2 bromine 2 alcohol. But the serious defect that bromic department fire retardant exists is to make by flame retardant of base material fight ultraviolet stability to reduce, more harmful to human body and environment smoke, caustic gas and toxic gas are made when combustion. Occupied Swiss scientist story 1986, much bromine when 2 benzene aether burns, generate poisonous the much bromine that causes cancer is acting 2 benzene and 2 evil late alkyl reach 2 benzene and furan, put in the menace with serious move to the mankind and environment. The environmental safety issue that brings about the fire retardant that contains halide accordingly caused the attention with wide people. Current, flame retardant more and more material is medium making that appliance has environmental security and fire retardant of the avirulent, does not have social effects of pollution inorganic fire retardant of use security and organic phosphor department. Alumina of 2.2 accept Mi QingHydroted alumina is the mainest kind in inorganic fire retardant, with respect to wastage character, firm in all fire retardant head the list, because hydroted alumina is low poisonous, 45% what at present cost amount of the whole world occupies fire retardant total cost to measure, occupy inorganic fire retardant 70% what bad news measures. Because its or smoke, low corrode, and the price is low, predict to be in henceforth a few years, year of average growth of its dosage speed general prep above is all and other kind of fire retardant [2] . Of the hydroted alumina fire retardant that uses at present flame retardant capability is not strong, its grain is in commonly micron class, need expensive stuff, just have anti-flammability, and flame retardant efficiency is not tall, still can affect the physical machinery performance of material. Medium dispersive sex is fastened in resinite to raise fire retardant, those who increase fire retardant is flame retardant the effect, it is better to ask the grain of fire retardant is finer commonly. Class of use accept rice hydroted alumina fire retardant, because enhance interfacial interaction, can evener it is dispersedly in matrix colophony, thereby can more significant improvement in all the mechanical function of batch mixing, its fill quantity will decrease greatly, flame retardant efficiency also can rise doubly. The essence of hydroted alumina is refined and the synergism of ATH and fire retardant, make its by small effect flame retardant model to efficient and flame retardant model change, by common model direction of product of set of gender, can high additional cost develops product Xiang Gaogong, this promoted the quality of hydroted alumina greatly, extended the applied range of ATH. Fire retardant of ester of 2.3 phosphoric acidFire retardant of organic phosphor department is one of the mainest organic fire retardant, it also is the stress that develops environmental protection fire retardant. Fire retardant of organic phosphor department includes phosphoric acid ester to reach its derivative, inferior phosphine of salt of phosphoric acid ester, organic phosphor, oxidation contains phosphor multivariate alcohol and phosphor - nitrification content, as fire retardant, application is most wide is phosphoric acid ester and phosphine acerbity ester. Respond of phosphorous department fire retardant and add model two kinds, add model small element measures compound, be like ester of alkyl phosphoric acid, also have assemble in content, be like ester of much phosphoric acid. Basically be to use at present add model phosphor is fire retardant, but use reaction fire retardant to undertake chemical modified to high polymer with gifting material anti-flammability also is taken seriously increasingly. Phosphorous compound can use two kinds of valid approaches to the chemical modified of high polymer: The first kind is in carrying Xiang Gaoju matter, introduce flame retardant modified is luscious group it is the 2nd kind in order to change the structural; of high polymer of the mother's body to use the reaction of reaction fire retardant and not saturated high polymer to perhaps have flame retardant the copolymerization technology that monomer shares. The fire retardant that contain phosphor holds concurrently flame retardant with the function that adds model, use is extensive. Among them phosphoric acid ester kind fire retardant has very good gas phase and solid look flame retardant action, its effect is gotten higher than containing bittern fire retardant much. When combustion, phosphorous compound gentleman lights film of sexual liquid state into the blame of phosphoric acid, generate in farther dehydrate then slant phosphoric acid, slant phosphoric acid gets together then synthesis gets together slant phosphoric acid. Among them, action; is enclothed to get together since the liquid state film that phosphoric acid makes slant phosphoric acid is strong acid and powerful dehydrating agent, can make dehydrate of high polymer material and char, film of this kind of charcoal isolated air, make phosphide was developed thereby flame retardant action. 3. is flame retardant the development trend of epoxy resinConsider and use contain phosphor, nitrogen, silicon to wait flame retardant elemental epoxy resin replaces the 4 bromic double phenolic A that use extensively now epoxy resin, it is development blame is haloid and flame retardant the main method of epoxy resin. The research of the 3.1 epoxy resin that contain nitrogenThe epoxy resin that contain nitrogen includes shrink glycerine amine epoxy resin and get together acerbity ester of different cyanogen Niao - the sort such as colophony of ketone of evil Zun alkyl. Epoxy resin includes shrink glycerine amine to be nuclear framework with 3 Qin 3 get together cyanic acid is amine of 3 shrink glycerine, right amino phenol epoxy resin and 2 amino epoxy resin of 2 benzene firedamp. 3 get together cyanic acid contains 3 annulus oxygen in element of amine of 3 shrink glycerine base, the quantity that contain nitrogen is as high as 14% , because this is had from extinguish sex. It still has cross-linking density big, be able to bear or endure lukewarm performance is high, be able to bear or endure electric arc sex is good wait for a characteristic. Get together acerbity ester of different cyanogen Niao - colophony of ketone of evil Zun alkyl is contain in a kind of structure a large number of 5 yuan, the epoxy resin of heterocycle of 6 yuan of nitrogen, because be contained in the structure a large number of 5, 6 yuan of annulus, this kind of material has friend exceedingly good anti-flammability, hear resistance, be able to bear or endure medium sex and mechanical intensity. The research of the 3.2 epoxy resin that contain phosphorPhosphorous element introduces in epoxy resin, can make its have good hear resistance and anti-flammability. Oxygen radical is in the annulus that uses the active nitrogen on phenanthrene phosphor compound and epoxy resin below catalysis of 3 phenyl phosphor, below 120~180 ℃ , have reaction through agitate, can generate phosphorous flame retardant model epoxy resin. In content of composition of this epoxy resin, the quantity that contain phosphor achieves 0.8~8% , can have exceedingly good anti-flammability. Phosphorous oxyacid is generated when material be heated, dehydrate of compound of this kind of acerbity catalysis becomes charcoal, of the quality loss rate that lowers material and combustible make an amount, and phosphor remains for the most part in charcoal layer. Flame retardant efficiency basically depends on generated charcoal layer. The research of the 3.3 epoxy resin that contain siliconEvery contains annulus the polymer of organic silicon high polymer of oxygen radical, can regard organic silicon as epoxy resin. Amount of organic silicon element is different, organic silicon photograph gets dispersive condition to have very big change in solidify colophony, make its function produces very big difference thereby. Epoxy resin of organic silicon modified is in recent years development rises can reduce epoxy resin internal stress already, can increase epoxy resin again tenacity, high temperature resistant the efficient way of the function such as the gender. At present the method of epoxy resin of organic silicon modified has in all mix up copolymerization two kinds, its key is in is to solve good consistence problem. 4. epilogueFlame retardant the development of epoxy resin already tended to without halogenate, new technicalization, muti_function change and systematization develops. Be in at present flame retardant still need to solve many problems in the actual application of epoxy resin, for example, some is flame retardant the meeting when epoxy resin burns produces smother, some is flame retardant although epoxy resin has good curb smoke function, but physics is mechanical function drops too much, cannot satisfy a project to use a requirement to wait. Because of this should study further and developing new-style thermal stability tall, high polymer is measured and the structure do not have bittern with fine consistence flame retardant solidify agent, exploration is tall flame retardant monomer of oxygen of elemental content annulus or craft of preparation of cost of production of solidify agent and other places, from go up at all the negative effect that solves generation of because of adding fire retardant other to material property.
Flame retardant the research of epoxy resin system makes progress
