海藻酸钙三维多孔柔性材料制备及性能研究
Preparation and Performance of of Calcium Alginate 3D Porous Flexible Materials
余秋雨 1谭艳君 1黄伟 1李宗权 1邓云涛1
作者信息
- 1. 西安工程大学 纺织科学与工程学院,陕西 西安 710048;陕西省功能材料染整创新工程研究中心,陕西 西安 710048
- 折叠
摘要
针对海藻酸钙多孔材料柔韧性差、干燥易撕裂的问题,通过多种试剂综合对比,选择丙三醇对其柔性处理,成功制备出耐弯折且易吸水的天然高分子多孔材料.实验采用正交和单因素实验分析丙三醇的浓度、处理温度及时间,分析对柔性海藻酸钙多孔材料的断裂强度、柔韧性以及吸液量的影响,确定最佳制备工艺为丙三醇浓度 6%、温度 30℃、处理时间 9h.此工艺下制备的柔性海藻酸钙多孔材料其断裂强度为 0.174MPa、吸液量 14.9g/g、柔韧度达 290°,表现为较好的柔韧性能、吸水性能和力学性能.实验表明,随着丙三醇浓度的增加,柔韧度增加,但吸液量和拉伸断裂强度均下降.柔性处理后的海藻酸钙保湿性能和热稳定性能增加.柔性处理后的海藻酸钙具有较好的柔韧性能、力学性能、吸液性能、保湿性能、热稳定性能,能够满足伤口敷料的功能需求.
Abstract
In order to solve the problems of poor flexibility,dryness and easy tearing of calcium alginate por-ous materials,through a comprehensive comparison of various reagents,glycerol was selected to flexibly treat the material,and a natural polymer porous material with bending resistance and easy water absorption was successful-ly prepared.Orthogonal and single factor experiments were adopted to analyze the effects of glycerol concentra-tion,treatment temperature and time on the breaking strength,flexibility and liquid absorption of flexible calcium alginate porous materials,and the optimal preparation process was determined to be glycerol concentration of 6%,temperature 30℃ and treatment time of 9h.The flexible calcium alginate porous material prepared under this process had a breaking strength of 0.174MPa,a liquid absorption of 14.9g/g and a flexibility of 290°,which showed good flexibility,water absorption and mechanical properties.In addition,with the increase of glycerol con-centration,the flexibility increased while the liquid absorption and tensile breaking strength decreased.The mois-turizing properties and thermal stability of calcium alginate increased after flexible treatment.In summary,the cal-cium alginate after flexible treatment had better flexibility,mechanical properties,liquid absorption properties,moisturizing properties and thermal stability,which could meet the functional requirements of wound dressings.
关键词
天然高分子材料/海藻酸钙多孔材料/丙三醇/柔韧性/力学性能/保湿性能Key words
natural polymer materials/calcium alginate porous material/glycerol/flexibility/mechani-cal properties/moisturizing properties引用本文复制引用
出版年
2025
国家科技期刊平台
NSTL
万方数据