Silica, or silicon dioxide (SiO2) is one of the effective strengthening substance, commonly used in polymer composite materials. Silica particles can exist in crystalline (quartz,tridymit and crystobalit) or amorphous glass-like. In temperature usually, silica glass material that make up the solid blocks are identified, sometimes have the durabilityhigh hardness, mechanical ... [1]. Could thesilica particles by sol-gel method [2-6] and subsectionon the solvent, catalyst, pH, temperature, the particlesSilica are obtained in different sizes, from a few dozennanometer to several micrometers. Zukoski and colleaguessilica nanoparticles are synthesized in size from20-800 nm by the hydrolysis of tetraetoxysilan(TEOS) in aqueous ethanol with a base(NH3) [2]. Branda has synthesized from silicaTEOS and 3-aminopropyl trietoxysilan [5]. RoqueMalherbe and Mar-quez silica synthesized accordingthe method of using ethanol blends and Stöbermethanol (Stöber use only ethanol). The particlesnanosilica General was having a diameter of 200-450NM [6]. The research on yet to mention texturestructure of silica as well as the application of silicaas modifiers for ethylene vinyl acetate copolymers(EVA) in the presence of nature compatible EVA graftmaleic anhydride (EVAgMA). Therefore, theThis process has studied the synthesis of nanosilica particles,at the same time using this substance silica particles itselfmodifiers for EVA with matching EVAgMA to increase the ability of dispersion and interaction betweenEVA and nanosilica. Infrared spectroscopy, particle sizeand crystal structure of silica particles, the nature storevariables and properties of nanocompozit materialsEVA/EVAgMA/silica has been discussed in a waydetails.
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