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| Preparation of Magnetic Regenerated Cellulose Microspheres via High voltage Electrospraying Method |
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| DOI：10.11981/j.issn.1000-6842.2014.03.27 |
| Key Words:NaOH/Urea/H2O solvent system; high voltage electrospraying; magnetic cellulose microspheres; super paramagnetism |
| Fund Project:国家自然科学基金资助项目（No. 31200453，31300483）；江苏省自然科学基金（No. BK20130971）；江苏高校优势学科建设工程资助项目。 |
| Author Name | Affiliation | | 周冠成1 | 1.南京林业大学江苏省制浆造纸科学与技术重点实验室，江苏南京，210037 | | 谷 军1 | 1.南京林业大学江苏省制浆造纸科学与技术重点实验室，江苏南京，210037 | | 吴伟兵1,* | 1.南京林业大学江苏省制浆造纸科学与技术重点实验室，江苏南京，210037 | | 徐朝阳2 | 2.南京林业大学材料科学与工程学院，江苏南京，210037 | | 龚木荣1 | 1.南京林业大学江苏省制浆造纸科学与技术重点实验室，江苏南京，210037 | | 戴红旗1 | 1.南京林业大学江苏省制浆造纸科学与技术重点实验室，江苏南京，210037 |
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| Abstract: |
| Magnetic regenerated cellulose microspheres(M RCMS) were obtained from a mixture of Fe3O4 and cellulose in NaOH/urea aqueous solution via high voltage electrospraying method. The influences of the loading amounts of Fe3O4 on the process of electrospraying as well as the morphology and physical structure of M RCMS were studied. The products were investigated by means of scanning electron microscope(SEM), X ray diffractometer(XRD), thermogravimetric analysis(TGA), vibrating sample magnetometer(VSM) and transmission electron microscope(TEM). The balling ability, uniformity, water retention and pore structure of M RCMS became worse with the increasing of the amount of Fe3O4, but the specific surface area of M RCMS was larger. The crystal structure of Fe3O4 showed no changes during the process of loading. M RCMS had good thermal stability and super paramagnetism. |
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