CAJ | 학술논문

利用化学方法制得了纳米Fe3 O4粒子,然后将其与聚乙烯醇(PVA)的胶态溶液共混,通过冻融法制备了纳米Fe3O4/PVA磁性水凝胶.采用综合热分析仪、拉伸试验机及ppms-9综合物性检测系统对磁性水凝胶进行了表征和测试.结果表明,纳米Fe3O4粒子的加入会降低磁性水凝胶的热稳定性;磁性水凝胶的力学性能和磁学性能随纳米Fe3O4含量及冻融次数的改变而显著变化.
이용화학방법제득료납미Fe3 O4입자,연후장기여취을희순(PVA)적효태용액공혼,통과동융법제비료납미Fe3O4/PVA자성수응효.채용종합열분석의、랍신시험궤급ppms-9종합물성검측계통대자성수응효진행료표정화측시.결과표명,납미Fe3O4입자적가입회강저자성수응효적열은정성;자성수응효적역학성능화자학성능수납미Fe3O4함량급동융차수적개변이현저변화.
The nano Fe3 O4/PVA magnetic hydrogels are prepared by the repeated freezing-thawing method.These materials are characterized by transmission electron microscope, thermogravimetry analysis, tensile testing machine and properties detect system. The results show that the thermal stability is descending by adding Fe3O4 nano-particles. Mechanical property and magnetic performance are dependent on the nano Fe3 O4 concentration and freezingthawing cycle.