TY - JOUR A1 - Dimitrov, Kiril A1 - Herzog, Michael A1 - Nenkova, Sanchi T1 - Fe3O4 Modification of Microcrystalline Cellulose for Composite Materials TI - American Journal of Chemistry N2 - A new synthesis method for producing cellulose ferrite micro- and nano- composites was developed and new material properties were studied. Microcrystalline cellulose was modified with a mixture of Fe+2/Fe+3 to produce surface bonded nanoparticles magnetite (Fe3O4). Optimal conditions were determined. Microsized hematite (Fe2O3) was mixed with microcrystalline cellulose and used as a reference. The magnetite modified microcrystalline cellulose and hematite filled microcrystalline cellulose were used together with polyurethane prepolymer. New composite crosslinked conductivity materials based on the magnetite modified microcrystalline or hematite filled microcrystalline cellulose and polyurethane were developed. Morphology, crystalline properties, 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. KW - Microcrystalline cellulose KW - Magnetite KW - SEM KW - XRD Y1 - 2013 UR - https://opus4.kobv.de/opus4-th-wildau/frontdoor/index/index/docId/965 UR - https://nbn-resolving.org/urn:nbn:de:kobv:526-opus4-9651 SN - 2165-8781 VL - 3 IS - 5 SP - 140 EP - 147 ER -