Hydrogels having enhanced elasticity and mechanical strength properties
    2.
    发明授权
    Hydrogels having enhanced elasticity and mechanical strength properties 失效
    水凝胶具有增强的弹性和机械强度性能

    公开(公告)号:US06960617B2

    公开(公告)日:2005-11-01

    申请号:US10420323

    申请日:2003-04-22

    摘要: Hydrogels having improved elasticity and mechanical strength properties are obtained by subjecting a hydrogel formulation containing a strengthening agent to chemical or physical crosslinking conditions subsequent to initial gel formation. Superporous hydrogels having improved elasticity and mechanical strength properties are similarly obtained whenever the hydrogel formulation is provided with a foaming agent. Interpenetrating networks of polymer chains comprised of primary polymer(s) and strengthening polymer(s) are thereby formed. The primary polymer affords capillary-based water sorption properties while the strengthening polymer imparts significantly enhanced mechanical strength and elasticity to the hydrogel or superporous hydrogel. Suitable strengthening agents can be natural or synthetic polymers, polyelectrolytes, or neutral, hydrophilic polymers.

    摘要翻译: 具有改善的弹性和机械强度性能的水凝胶是通过使含有强化剂的水凝胶制剂经历初始凝胶形成之后的化学或物理交联条件获得的。 当水凝胶制剂设置有发泡剂时,类似地获得具有改善的弹性和机械强度性能的多孔水凝胶。 从而形成由初级聚合物和强化聚合物构成的聚合物链的互穿网络。 主要聚合物提供基于毛细管的水吸附性质,而强化聚合物赋予水凝胶或多孔水凝胶显着增强的机械强度和弹性。 合适的增强剂可以是天然或合成聚合物,聚电解质或中性亲水聚合物。