首页> 外文期刊>The Journal of Chemical Physics >Local structure of percolating gels at very low volume fractions
【24h】

Local structure of percolating gels at very low volume fractions

机译:在非常低体积分数下渗透凝胶的局部结构

获取原文
获取原文并翻译 | 示例
           

摘要

The formation of colloidal gels is strongly dependent on the volume fraction of the system and the strength of the interactions between the colloids. Here we explore very dilute solutions by the means of numerical simulations and show that, in the absence of hydrodynamic interactions and for sufficiently strong interactions, percolating colloidal gels can be realised at very low values of the volume fraction. Characterising the structure of the network of the arrested material we find that, when reducing the volume fraction, the gels are dominated by low-energy local structures, analogous to the isolated clusters of the interaction potential. Changing the strength of the interaction allows us to tune the compactness of the gel as characterised by the fractal dimension, with low interaction strength favouring more chain-like structures.
机译:胶体凝胶的形成强烈依赖于系统的体积分数和胶体之间的相互作用的强度。 在这里,我们通过数值模拟探索非常稀释的解决方案,并表明,在没有流体动力学相互作用和足够强的相互作用的情况下,可以在体积分数的非常低的值下实现渗透胶体凝胶。 表征被捕材料网络的结构,我们发现,当减小体积分数时,凝胶由低能量局部结构支配,类似于相互作用电位的隔离簇。 改变相互作用的强度使我们能够调节凝胶的紧凑性,其特征在于分形尺寸,具有低的相互作用强度,优先涉及更多的链状结构。

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