CAJ | 학술논문

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10 min得到的多孔膜孔结构最为理想,对蒸馏水的吸水率高达1 123%.
채용냉동간조법제비해조산개다공막,고찰해조산납적농도화교련시간대다공막적형모화흡수성능적영향.결과표명:냉동간조법제비적해조산개다공막구유관통、개방적다공결구.재시험범위내,질량백분비농도위2%적해조산납경질량백분비농도5%적록화개교련10 min득도적다공막공결구최위이상,대증류수적흡수솔고체1 123%.
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 interconnected pore structure and its absorbency up to 1 123% for distilled water.