Abstract In this work, triple networks hydrogel with high strength were made by chemical and physical cross-linking. A covalent bond cross-linking network was formed by polyacrylamide chains, Alginate Sodium and ion form the second network, then the Poly (vinyl alcohol) was added to form the semi-crystalline physical crosslink network by freezing and thawing process. The prepared hydrogels can be stretched beyond 13 times to their initial length, and the toughness of the hydrogels reach 5 MJ m−3. Therefore, triple networks hydrogels have potential application in biomaterials for the merits of high strength and biocompatibility.

中文翻译：

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化学和物理交联制成的高强度三重网络水凝胶

摘要 本研究通过化学和物理交联制备了高强度的三重网络水凝胶。聚丙烯酰胺链形成共价键交联网络，海藻酸钠和离子形成第二个网络，然后加入聚乙烯醇，通过冻融过程形成半结晶物理交联网络。制备的水凝胶可以拉伸超过其初始长度的 13 倍，水凝胶的韧性达到 5 MJ m-3。因此，三重网络水凝胶具有高强度和生物相容性的优点，在生物材料中具有潜在的应用价值。