flame retardant materials

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One of the important aids nano ultrafine powder flame retardant materials in polymer materials processing, if using nanotechnology retardant treatment of polymer materials, can achieve flame resistance and self-interest. At present, flame retardants used mostly inorganic flame retardants, which include antimony-based flame retardants, aluminum-based flame retardants, phosphorus-based composite water proof deck flame retardants and boron-based flame retardants. Because of these flame retardants added to the polymer, can cause processing technology and product properties of the polymer change, especially molded products, extrusion surface finish products and film products greater impact, we need to make all additions Type ultrafine particle inorganic flame retardants.

Like most used an additive flame retardant antimony trioxide, its particle size and morphology properties and flame retardant plastics and textile fabrics impact of very large. Size is an important indicator of antimony trioxide, antimony trioxide size only when in the nanometer scale will make it itself has a larger surface area of ​​the fabric permeability, high adhesion, with a strong wash fastness, flame-retardant effect is very obvious. Ultrafine flame retardants can improve the mechanical properties of materials, reducing the amount of flame retardant to meet process requirements. Nanoscale antimony trioxide flame retardant materials because of its smaller size has a special ductility, flame retardant in terms of magnitude higher than micron antimony trioxide have. It is particularly important due to the diameter of the synthetic fibers outdoor gates for composite deck of nanoscale particle diameter of less than antimony trioxide, fiber raw materials may be added to the masterbatch, after spinning so that the fiber material is uniformly distributed flame retardant, so that the fiber itself has flame-retardant efficiency sex. 3.2 retardant nanocomposites Although the use of ultra-fine flame retardants can improve flame retardant properties of the polymer, but there are some problems, such as not effectively control the release of toxic gases and generate a lot of smoke, after adding flame retardants can affect the mechanical properties of the polymer , will cause some environmental impact.

Therefore, the study and use of polymer / layered inorganic nanocomposites will be able to meet these requirements and has good flame retardant properties. Nanocomposite material is actually the one or more nano size or molecular level are uniformly dispersed in a matrix of another component. According to foreign reports, due to the presence of the material thus treated ultrafine size, it has greatly improved its nature than its corresponding build curved planter box macro or micro-scale composite. Currently in the laboratory it has been prepared nanoscale epoxy, polystyrene, polypropylene, nylon-6, composite materials such as acrylic. Such as nylon-6 / montmorillonite (4.2%) nanocomposites tensile strength than pure nylon-6 enhanced 50%, the glass transition temperature than that of pure nylon-6 increased by about 90 ℃; while the heat release efficiency than pure nylon - 6 was a lot lower.