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首页> 外文期刊>Journal of University of Science and Technology Beijing >Processing investigation and optimization for hybrid thermoplastic composites
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Processing investigation and optimization for hybrid thermoplastic composites

机译：杂化热塑性复合材料的工艺研究和优化

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摘要

A thermoplastic based composite material is suitable for automobile and aerospace applications. The recyclability of thermoplastic and clean processing further enhance its use. The only limitation encountered in using this material is its high-melt viscosity. Various techniques have been developed to overcome this problem. Commingled materials are one of such methods adopted for making proper use of thermoplastic. A major problem observed during the use of a commingled material is its de-commingling, wherein, the uniform distribution of fiber and thermoplastic yarn gets disturbed and affects the final quality of the composite. The effects of the braiding process on laminate quality were investigated. Flat plaques were produced by braiding the commingled yarn, using a 48-carrier braiding machine. The braids (and control woven samples) were subsequently heated and consolidated in a nonisothermal compression molding operation. Prior to the manufacture of the 'best quality' plaques, a series of moldings were produced under different consolidation conditions, to study the dependence of properties on the process variables. This enabled a processing window to be established for each material and helped to separate the respective effects of yarn handling, textile processing, and consolidation on laminate properties.
机译：热塑性基复合材料适用于汽车和航空航天应用。热塑性塑料的可回收性和清洁工艺进一步提高了其用途。使用这种材料时遇到的唯一限制是其高熔体粘度。已经开发出各种技术来克服该问题。混合材料是适当使用热塑性塑料的一种方法。在使用混合材料的过程中观察到的主要问题是其分解，其中纤维和热塑性纱线的均匀分布受到干扰并影响复合材料的最终质量。研究了编织工艺对层压板质量的影响。使用48架式编织机将混纺的纱线编织在一起，从而制得扁平的板块。随后将编织物（和对照织造样品）在非等温压缩成型操作中加热并固结。在生产“最高质量”的板之前，在不同的固结条件下生产了一系列模制品，以研究性能对工艺变量的依赖性。这样就可以为每种材料建立处理窗口，并有助于区分纱线处理，纺织品处理和固结对层压材料性能的各自影响。

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