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首页> 外文期刊>Journal of Applied Polymer Science >Interface development and encapsulation in simultaneous coinjection molding. I. Two-dimensional modeling and formulation
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Interface development and encapsulation in simultaneous coinjection molding. I. Two-dimensional modeling and formulation

机译：同时共注射成型中的界面开发和封装。一，二维建模与表述

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摘要

In the coinjection-molding process two polymers are injected into a mold sequentially or simultaneously. During the process one polymer melt forms the skin and the other forms the core, resulting in an encapsulated sandwich structure. In an attempt to develop a process model and simulation of simultaneous coinjection molding, along with the interface treatment a theoretical approach, physical model, and numerical algorithm were formulated based on the Hele-Shaw approximation. A detailed picture of the dynamics and kinematics of the interface evolution, providing a description of the multilayer flow and interface development during the multicomponent injection-molding process, information typically lacking in the available literature, is systematically presented. Based on the developed numerical simulation code, the moldability of various material combinations can be evaluated, which is required for process optimization. (C) 2003 Wiley Periodicals, Inc. [References: 53]
机译：在共注塑过程中，将两种聚合物顺序或同时注入模具中。在此过程中，一种聚合物熔体形成皮，另一种形成芯，从而形成包封的三明治结构。为了开发同时共注射成型的过程模型和仿真，并结合界面处理，基于Hele-Shaw近似公式，提出了一种理论方法，物理模型和数值算法。系统地介绍了界面演化的动力学和运动学的详细情况，描述了多组分注塑过程中多层流动和界面发展的过程，而现有文献中通常缺乏这些信息。基于开发的数值模拟代码，可以评估各种材料组合的可塑性，这是过程优化所必需的。 （C）2003 Wiley Periodicals，Inc. [参考：53]

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