• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International symposium on polymer physics : Preprints >A STUDY FOR THE FRACTURE MECHANISM OF DOUBLE NETWORK HYDROGELS WITH ULTRA TOUGHNESS
【24h】

A STUDY FOR THE FRACTURE MECHANISM OF DOUBLE NETWORK HYDROGELS WITH ULTRA TOUGHNESS

机译：超韧性双网络水合物的断裂机理研究

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

@@Introduction Living organs perform incredibly well in soft and wet gel-like states. Thus, hydrogels attract much attention as excellent wet materials, as they are suitable for manufacturing artificial organs for medical treatments. The conventional hydrogels, however, are too brittle to be used for such applications. We have recently overcome this problem with an epoch-making discovery; we succeeded in creating double network (DN) hydrogels with an anomalously high mechanical strength1). The DN gels are interpenetrating network (IPN) hydrogels consisting of poly(2-acrylamido-2methylpropanesulfonic acid) gels (PAMPS gels, rigid and brittle) as the first network and polyacrylamide gels (PAAm gels, soft and ductile) as the second network. Although the fracture energy G of the PAMPS gel is approximately 1 J/m2 and that of the PAAm gel is approximately 10 J/m2, G of the DN gel increases anomalously up to a maximum of approximately 2000 J/m2; this is 200 ~ 2000 times higher than that of primary gels.
机译：@@简介活体器官在柔软和湿润的凝胶状状态下表现出色。因此，水凝胶作为优异的湿材料吸引了很多关注，因为它们适合制造用于医疗的人造器官。然而，常规的水凝胶太脆而不能用于这种应用。我们最近通过划时代的发现克服了这个问题；我们成功地制造了具有异常高机械强度的双网（DN）水凝胶1）。 DN凝胶是互穿网络（IPN）水凝胶，由聚（2-丙烯酰胺基-2-甲基丙烷磺酸）凝胶（PAMPS凝胶，刚性和脆性）作为第一个网络，而聚丙烯酰胺凝胶（PAAm凝胶，软和易延展）作为第二个网络。尽管PAMPS凝胶的断裂能G约为1 J / m2，而PAAm凝胶的断裂能G约为10 J / m2，但DN凝胶的G断裂能反常增加，最大约为2000 J / m2。这是初级凝胶的200到2000倍。

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