CAJ | 학술논문

将纳米 Fe3 O4磁性颗粒加入由 PMDA 和ODA制备的PAA聚合物溶液中，通过静电纺丝法制备PAA/Fe3 O4复合纤维。利用扫描电镜(SEM)和透射电镜(TEM)对复合纳米纤维的微观形貌和 Fe3 O4在纤维中的分布进行了观察，采用 X 射线衍射仪(XRD)验证了Fe3 O4在复合纳米纤维中的存在，通过磁性实验分析了纳米复合材料的磁性能，同时使用红外光谱仪对纳米复合材料的化学结构进行了分析。结果表明，所制备PAA/Fe3 O4磁性纳米纤维成型良好， Fe3 O4磁性颗粒已分散在纤维中，与 PAA 是物理复合，材料具有一定磁性，为进一步制备聚酰亚胺磁性复合纳米纤维做了有益的探索研究。聚合物磁性复合材料由于其独特的物理化学性能及超顺磁性，有着广阔的应用前景。
장납미 Fe3 O4자성과립가입유 PMDA 화ODA제비적PAA취합물용액중，통과정전방사법제비PAA/Fe3 O4복합섬유。이용소묘전경(SEM)화투사전경(TEM)대복합납미섬유적미관형모화 Fe3 O4재섬유중적분포진행료관찰，채용 X 사선연사의(XRD)험증료Fe3 O4재복합납미섬유중적존재，통과자성실험분석료납미복합재료적자성능，동시사용홍외광보의대납미복합재료적화학결구진행료분석。결과표명，소제비PAA/Fe3 O4자성납미섬유성형량호， Fe3 O4자성과립이분산재섬유중，여 PAA 시물리복합，재료구유일정자성，위진일보제비취선아알자성복합납미섬유주료유익적탐색연구。취합물자성복합재료유우기독특적물이화학성능급초순자성，유착엄활적응용전경。
The PMDA and ODA were used to prepare polyamic acid(PAA)solution and Fe3 O4 magnetic nanop-articles were added to the PAA solution containing the dispersant.The nanofibers of PAA/Fe3 O4 were prepared by electro-spinning.The microstructure of nanocomposite fibers and the distribution of magnetite (Fe3 O4 )nan-oparticles in fibers were characterized using scanning electron microscopy (SEM)and transmission electron mi-croscopy(TEM).And X-ray diffractometry(XRD)proved that Fe3 O4 nanoparticles existed in nanocomposite fi-bers.The magnetic properties of Fe3 O4 nanoparticles and nanocomposites were characterized using SQUID. Fourier transform infrared spectroscope (FT-IR)was used to analysis the chemical structures.The study showed that the morphology of the PAA/Fe3 O4 nanocomposite fibers was uniform and continuous,and Fe3 O4 nanoparticles were dispersed in the PAA solution by physical composite.The nanocomposite fibers showed a certain magnetic property.In this paper,some beneficial investigation were made for the preparation of polyim-ide magnetic nanocomposite fibers.Polymer nanocomposites have been extensively investigated for their poten-tial wide applications because of their unique physicochemical properties and superparamagnetic behavior.