三维结构和氧化度对C6位氧化再生纤维素止血材料性能影响

发布时间：2018-05-04 03:35

本文选题：氧化再生纤维素 + 氧化度　；参考：《高分子通报》2017年09期

【摘要】：C6位氧化再生纤维素作为可吸收止血材料,其止血性能受材料理化性质的影响。通过比较氧化再生纤维素的吸水率、凝胶化速率、溶解速率、降解速率、抗老化性能和止血效果,研究三维结构和氧化度对氧化再生纤维素性能影响。结果发现,氧化度增高,氧化再生纤维素吸水率增强,凝胶化速率加快,溶解速率和降解速率变快,抗老化性能变差,产品有效期变短。纤丝松散网状多孔结构比纱布致密结构更有利于提高吸水率,加快凝胶化速率和溶解速率;同时降低氧化剂用量,提高抗老化性能。同一氧化度条件下,纤丝止血速率优于纱布,止血效果更好。
[Abstract]:As absorbable hemostatic material, C _ 6 oxidized regenerated cellulose is affected by the physical and chemical properties of the material. By comparing the water absorption, gelation rate, dissolution rate, degradation rate, antiaging property and hemostatic effect of oxidized regenerated cellulose, the effects of three dimensional structure and degree of oxidation on the properties of oxidized regenerated cellulose were studied. The results showed that the oxidation degree increased, the water absorption of oxidized regenerated cellulose increased, the gelation rate accelerated, the dissolution rate and degradation rate became faster, the anti-aging property became poor, and the product validity period became shorter. The loose reticular porous structure of filaments is more favorable than the dense structure of gauze to increase water absorption, accelerate gelation rate and dissolution rate, reduce the amount of oxidant and improve the anti-aging performance. Under the same oxidation degree, the hemostasis rate of filaments was better than that of gauze, and the hemostatic effect was better.
【作者单位】：杭州协合医疗用品有限公司;
【分类号】：R318.08;TQ352.79

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