| 海藻酸钙冻干多孔膜的制备研究 |
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| 引用本文： | 郝晓丽,夏延致.海藻酸钙冻干多孔膜的制备研究[J].科学技术与工程,2010,10(11). |
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| 作者姓名： | 郝晓丽 夏延致 |
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| 作者单位： | 青岛大学纤维新材料与现代纺织国家重点实验室培育基地,青岛,266071 |
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| 基金项目： | 国家自然科学基金(50673046)资助 |
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| 摘 要： | 采用冷冻干燥法制备海藻酸钙多孔膜,考察海藻酸钠的浓度和交联时间对多孔膜的形貌和吸水性能的影响。结果表明:冷冻干燥法制备的海藻酸钙多孔膜具有贯通、开放的多孔结构。在试验范围内,质量百分比浓度为2%的海藻酸钠经质量百分比浓度5%的氯化钙交联10min得到的多孔膜孔结构最为理想,对蒸馏水的吸水率高达1123%。
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| 关 键 词： | 海藻酸钙 冷冻干燥 多孔膜 吸水性能 |
| 收稿时间： | 2010/1/22 0:00:00 |
| 修稿时间： | 2010/1/22 0:00:00 |
Preparation of porous Ca-alginate films by using freeze-drying method |
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| Hao Xiaoli and Xia Yanzhi.Preparation of porous Ca-alginate films by using freeze-drying method[J].Science Technology and Engineering,2010,10(11). |
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| Authors: | Hao Xiaoli and Xia Yanzhi |
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| Institution: | State Key Laboratory Cultivating Base of Advanced Fiber Materials and Modern Textile/a>;Qingdao University/a>;Qingdao 266071/a>;P.R.China |
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| Abstract: | The porous films of Ca-alginate were produced by freeze-drying method successfully.Different parameters,such as Na-alginate concentrations and cross-linked time were studied.The pore size and micromorphology were investigated by scanning electron microscopy (SEM).The water absorbency were explored to confirm the applicability of the porous films as a wound dressing material.Results show that the optimum film is formed when 2% Na-alginate cross-linked for 10min by 5% Calcium.The film possesses uniformly inte... |
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| Keywords: | Ca-alginate freeze-drying porous film water absorbency |
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