| 海藻酸钠/氧化石墨烯复合水凝胶的制备与性能 |
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| 引用本文： | 李 亮,喻航达,邱唯楚,申小松,喻湘华. 海藻酸钠/氧化石墨烯复合水凝胶的制备与性能[J]. 武汉工程大学学报, 2018, 40(6): 641-644 |
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| 作者姓名： | 李 亮 喻航达 邱唯楚 申小松 喻湘华 |
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| 作者单位： | 武汉工程大学材料科学与工程学院，湖北 武汉 430205 |
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| 摘 要： | 为了研究氧化石墨烯（GO）对海藻酸钠（SA）凝胶性能的影响，以Ca2+与Fe3+作为交联剂，在SA水凝胶自组装过程中加入GO水溶液，一步法得到了海藻酸钠/氧化石墨烯（SA/GO）复合水凝胶。通过扫描电子显微镜与X射线衍射表征了所得凝胶的结构与微观形貌，测试了不同凝胶样品的平衡溶胀性能和力学性能。研究结果表明，Fe3+交联得到的凝胶结构相比Ca2+交联得到的凝胶更加紧凑，平衡溶胀性能降低较多；随着GO的加入，复合水凝胶的力学性能提升，平衡溶胀性能降低，这表明SA/GO复合水凝胶的性能可以通过选择合适的交联剂与GO用量进行调控。关键词:海藻酸钠；氧化石墨烯；复合水凝胶
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| 关 键 词： | 海藻酸钠 氧化石墨烯 复合水凝胶 |
Preparation and Properties of Sodium Alginate/Graphene OxideCompoiste Hydrogels |
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| LI Liang,YU Hangda,QIU Weichu,SHEN Xiaosong,YU Xianghua. Preparation and Properties of Sodium Alginate/Graphene OxideCompoiste Hydrogels[J]. Journal of Wuhan Institute of Chemical Technology, 2018, 40(6): 641-644 |
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| Authors: | LI Liang YU Hangda QIU Weichu SHEN Xiaosong YU Xianghua |
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| Affiliation: | School of Materials Science and Engineering，Wuhan Institute of Technology， Wuhan 430205， China |
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| Abstract: | To study the effect of graphene oxide（GO） on the property of sodium alginate（SA） hydrogel，the sodium alginate/graphene oxide（SA/GO） composite hydrogel was prepared through the addition of GO in the self-assembly process of SA hydrogel using Ca2+ or Fe3+ as crosslinking agents. The morphology and structure of the as-prepared hydrogels were characterized by scanning electron microscopy and X-ray diffraction， and their equilibrium swelling degree and mechanical strength were also measured. The experimental results show that the equilibrium swelling degree of the hydrogel crosslinked by Fe3+ is significantly decreased with more compacted microstructure，compared with that of the hydrogel crosslinked by Ca2+. The mechanical strength of the composite hydrogel improves and the equilibrium swelling degree decreases with the increase of GO，indicating that the property of SA/GO composite hydrogel can be controlled with crosslinking agent and amount of GO. |
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| Keywords: | sodium alginate graphene oxide composite hydrogel |
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