| PVA/明胶/Fe_3O_4磁敏感性水凝胶的制备及性能研究 |
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| 引用本文： | 张书第,翟玉春,张振芳.PVA/明胶/Fe_3O_4磁敏感性水凝胶的制备及性能研究[J].功能材料,2011(Z2). |
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| 作者姓名： | 张书第 翟玉春 张振芳 |
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| 作者单位： | 沈阳理工大学环境与化学工程学院;东北大学材料与冶金学院;沈阳理工大学生物材料研究所;美国密歇根急救中心; |
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| 摘 要： | 采用物理交联的方法制备了聚乙烯醇(PVA)/明胶/Fe3O4磁敏感性水凝胶。对Fe3O4磁敏感性水凝胶在加入明胶前后的力学性能及溶胀性能进行了对比分析,利用SEM、IR等对水凝胶进行表征,采用振动样品磁强计测试了其磁敏感性。结果表明,PVA/Fe3O4磁敏感性水凝胶加入明胶后,其力学性能明显增强,提高了0.4~0.7MPa,当磁性粒子含量为1.5%时,力学性能较好;加入明胶后,水凝胶脱水率和溶胀度都随着磁性粒子增加而增大;从SEM照片及IR图上可知,加入明胶后,PVA、明胶和Fe3O4三者相容性较好;测得的水凝胶磁敏感性较好。
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| 关 键 词： | 聚乙烯醇(PVA) 明胶 四氧化三铁 水凝胶 力学性能 溶胀性能 磁敏感性 |
Preparation and properties of magnetic sensitive polyvinly-alcohol (PVA)/gelatin/iron oxide black(Fe_3O_4) hydrogel |
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| ZHANG Shu-di,ZHAI Yu-chun,ZHANG Zhen-fang.Preparation and properties of magnetic sensitive polyvinly-alcohol (PVA)/gelatin/iron oxide black(Fe_3O_4) hydrogel[J].Journal of Functional Materials,2011(Z2). |
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| Authors: | ZHANG Shu-di ZHAI Yu-chun ZHANG Zhen-fang |
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| Affiliation: | ZHANG Shu-di1,2,ZHAI Yu-chun2,ZHANG Zhen-fang3,4 (1.School of Environmental and Chemical Engineering,Shenyang Ligong University,Shenyang 110159,China,2.Materials and Metallurgy Engineering Institute of Northeast University,Shenyang 110819,3.Biology Materials Graduate School of Shenyang University of Science and Technology,4.Michigan Urgent-Care Centre of USA,Michigan 48901,USA) |
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| Abstract: | Polyvinly-alcohol/gelatin/iron oxide black magnetic sensitive hydrogels has been fabricated using physical crosslinking method.The swelling characteristics and magnetic sensibility of the hydrogels were contrasted and analyzed,their microscopic appearance were analyzed using scanning electron microscope and infra-red spectrum,magnetic sensibility were tested using the vibration sample magnetometer.The results show that the magnetic sensibility can be increased from 0.4 to 0.7 MPa,when the content of iron ox... |
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| Keywords: | PVA gelatin Fe3O4 hydrogel mechanical properties freezing-thawing magnetic sensibility |
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