NCC负载纳米Fe_3O_4磁膜材料的交替沉积自组装及表征

以纳米纤维素(NCC)为组装模板,基于氢键的交替沉积自组装磁膜材料。X射线衍射(XRD)、透射电子显微镜(TEM)、扫描电子显微镜(SEM)和能量色散X射线光谱(EDX)分析结果表明,NCC负载纳米Fe3O4磁膜材料表面形貌和断面形貌规整,含有Fe3O4粒子为纳米级,且仅分布在NCC层。性能分析结果表明,NCC负载纳米Fe3O4磁膜材料为超顺磁性材料,与PVA膜相比,具有较好的紫外光阻隔性、较高的热稳定性和特殊的氧化降解能力;在Fe3O4固含量为1.1%时,磁性膜拉伸强度较PVA膜提高了17.0%。

Alternating Deposition Self-assembly and Characterization of NCC Load Nano-Fe3O4 Magnetic Membrane Materials

Magnetic membrane materials were prepared by alternating deposition self-assembly based on hydrogen bonding driving force, and nanocrystalline cellulose （NCC） as assemblytemplate. The analysis results of X-ray diffraction spectroscopy （XRD）, transmission electron microscopy （TEM）, scanning electron microscopy （SEM）, and energy dispersive X-rayspectroscopy （EDX） for NCC load nano-Fe3O4 magnetic membrane materials show that surface morphology and cross-section morphology of NCC load nano-Fe3O4 magnetic membranematerials is respectively regular, and nano-scale Fe3O4 particles only distributed in the NCC layer. The performance analysis for NCC load nano-Fe3O4 magnetic membrane materials shows thatNCC load nano-Fe3O4 magnetic membrane materials is superparamagnetic materials, NCC load nano-Fe3O4 magnetic membrane materials is good at UV barrier properties, thermal stability, andoxidation degradation ability compared with PVA membrane. Tensile strength of NCC load nano- Fe3O4 magnetic membrane materials with 1.1% Fe3O4 solid content increased 17.0% comparedwith PVA membrane.