Preparation and Characterization of Natural Polymer Cellulose or Sodium Alginate Based Composite Gels

Abstract

水凝胶,是一类具有三维交联网络结构的聚合物材料,其特征是能够吸收大量的水而不溶解,并能保持一定的形状和具有一定的强度,这一特点使水凝胶成为一类重要的功能高分子材料,在医疗、化工、农业等方面具有广阔的应用。天然高分子是一类可持续发展的资源,具有良好的生物相容性、生物可降解性、资源丰富等优点,成为制备新型凝胶的首选原料。另外,面对目前地球上的化石资源日益减少的严峻形势,利用和开发高值化天然高分子材料有助于应对逐渐呈现的石油危机、能源危机。本论文采用纤维素或海藻酸钠天然高分子为原料,制备了多种新型复合水凝胶材料。采取多种手段和先进方法详细表征了所得复合水凝胶,并研究其性能。结果表明,这些水凝胶材料除...Hydrogel is three-dimensional network consisting of polymer, which can absorb large amounts of water without dissolving and maintain a certain shape and strength. Due to these unique properties, hydrogels have wide applications in the fields of medical treatment, chemical industry, agriculture and so on. Natural polymers, the most abundant renewable resource on earth with biocompatibility and biod...学位:理学硕士院系专业:材料学院_高分子化学与物理学号:2072014115006

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