Rheology and processing of suspensions with fiber, disk and magnetic particles
Rheology and processing of suspensions with fiber, disk and magnetic particles
复制标题
纤维、圆盘和磁性颗粒悬浮液的流变学和加工
DOI：
10.1007/s13367-011-0027-1
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发表时间：
2011
影响因子：
1.3
通讯作者：
S. Park
中科院分区：
文献类型：
--
作者：
Jang;S. Park
本文介绍了近年来悬浮材料流变学和加工技术的发展和进展。特别是，将讨论三个主题与不同的悬浮液，这是相关的聚合物和粉末为基础的制造业的各种应用。本文首先对短纤维悬浮液在粘弹性液体中的流变模型进行了基础研究。基于不可逆热力学原理，考虑纤维各向异性效应，提出了一种描述聚合物粘弹性变形的方法。该模型的几个显着特点。然后，我们把我们的注意力转向更面向工业的主题，颜料盘定向在注塑成型的美学塑料零件。利用Jeffery模型简要讨论了纤维取向运动学与盘取向运动学的主要区别。实验和数值计算结果的磁盘方向和表面颜色的模塑件。最后，我们介绍了我们最近的工作，磁性颗粒悬浮液的流变性，这是一个重要的组成部分，精密磁性粉末注射成型工艺的发展。给出了不锈钢粉末悬浮液的一些流变仪数据。
This paper introduces recent development and progress in rheology and processing of suspension materials. In particular, three topics with different suspensions will be discussed, which are relevant in polymer- and powder-based manufacturing industries for various applications. The paper begins with a fundamental study of rheological modeling for short fiber suspension in a viscoelastic liquid. Irreversible thermodynamics based approach is presented to describe the polymer viscoelastic deformation with the fiber anisotropy effect taken into account. Several distinguishing features of the model are presented. Then we turn our attention to more industry-oriented subject of pigment disk orientation in injection molding of aesthetic plastic parts. The major difference between fiber and disk orientation kinematics is briefly discussed using Jeffery model. Experimental and numerical results for the disk orientation and the surface color of the molded part are presented. Finally, we introduce our recent efforts regarding the rheology of magnetic particle suspension, which is an essential part for a development of precision magnetic powder injection molding process. Some rheometer data for stainless steel powder suspensions are presented.