Chemical modification of the surface of Fe75Si25 alloy particles with stearic acid under high-energy ball-milling conditionsстатья
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Дата последнего поиска статьи во внешних источниках: 11 мая 2017 г.
Аннотация:The morphology, phase composition and surface structure of Fe75Si25-alloy particles are studied
by electron microscopy, X-ray diffraction analysis, and Mössbauer, Auger, IR (infrared) and X-ray photoelectron spectroscopy. The alloy particles used as fillers for the polyethylene matrix are produced by high-energy ball milling in an organic medium with the addition of stearic acid. The addition of stearic acid is shown to promote plasticization of the brittle Fe75Si25 alloy and the formation of a surface layer of no more than 1.5 nm thick, consisting of oxides based on iron and silicon, responsible for the chemisorption of stearic acid on the surface. Chemical modification of the surface of filler particles with an amphiphilic surfactant is carried out to enhance their adhesion in the polymer matrix.