• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Hydrogels with high mechanical strength cross-linked by a rosin-based crosslinking agent
【24h】

Hydrogels with high mechanical strength cross-linked by a rosin-based crosslinking agent

机译：具有高机械强度的水凝胶通过松香类交联剂交联

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In recent years, double-network (DN) hydrogels with high mechanical strength and toughness have been developed as promising materials, such as absorbents, tissue scaffolds and wastewater treatment agents. Herein, we present a novel DN hydrogels, which were prepared by micellar copolymerization of acrylamide (AM) and a rosin-based crosslinking agent (FPA–PEG200–AC) in a micellar solution of sodium dodecyl sulfate (SDS). The hydrogels using a rosin-based crosslinking agent (RPAM hydrogels) could form both chemical crosslinks and crosslinked centers for hydrophobic association to enhance mechanical strength. The formulated hydrogels exhibited high elongation ratios at break (500–1500%) and excellent compressive strain (>95%). Also, with an increase in the amount of crosslinking agent, the elongation at break and swelling ratio decreased. The surface morphology of the hydrogels was observed by scanning electron microscopy (SEM), while the thermal properties were characterized by thermogravimetric analysis. The results indicate a successful synthesis of the double-network (DN) hydrogels with high mechanical strength. The RPAM DN hydrogel synthesis can open fresh avenues for the design and construction of DN systems, broadening the scope of the current research and applications of hydrogels with excellent mechanical properties.
机译：近年来，具有高机械强度和韧性的双网（DN）水凝胶已被开发为很有前景的材料，例如吸收剂，组织支架和废水处理剂。在这里，我们介绍了一种新型的DN水凝胶，它是通过在十二烷基硫酸钠（SDS）的胶束溶液中丙烯酰胺（AM）和基于松香的交联剂（FPA-PEG200-AC）的胶束共聚制备的。使用松香基交联剂的水凝胶（RPAM水凝胶）可以形成化学交联键和交联中心，以实现疏水缔合，从而提高机械强度。配制的水凝胶显示出高的断裂伸长率（500–1500％）和出色的压缩应变（> 95％）。另外，随着交联剂含量的增加，断裂伸长率和溶胀率降低。通过扫描电子显微镜（SEM）观察水凝胶的表面形态，同时通过热重分析表征其热性质。结果表明具有高机械强度的双网络（DN）水凝胶的成功合成。 RPAM DN水凝胶的合成可以为DN系统的设计和构建开辟新的途径，拓宽了具有优良机械性能的水凝胶的当前研究和应用范围。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号