Fe 3 O 4 Modification of Microcrystalline Cellulose for Composite Materials

A new synthesis method for producing cellulose ferrite micro - and nano- co mposites was developed and new material propert ies were studied. Microcrystalline cellu lose was modified with a mixture of Fe +2 /Fe +3 to produce surface bonded nanoparticles magnetite (Fe3O4). Opt imal conditions were determined. M icrosized hematite (Fe2O3) was mixed with microcrystalline cellulose and used as a reference. The magnetite modified microcrystalline cellu lose and hematite filled microcrystalline cellulose were used together with polyurethane prepolymer. New co mposite crosslinked conductivity materials based on the magnetite modified microcrystalline or hematite filled microcrystalline cellulose and polyurethane were developed. Morphology, crystalline p roperties, water absorption and electro conductivity of these materials were characterized. The physical properties of these materials were characterized by different analytical methods: SEM, XRD, water absorption and electrical resistance.