Densification of fibre-reinforced composite polymers under rotational moulding conditions

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Plastics, Rubber and Composites Pub Date : 2022-08-18 DOI:10.1080/14658011.2022.2108985

D. Castellanos, P. Martin, M. Mccourt, M. Kearns, J. Butterfield, P. Cassidy

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引用次数: 1

Abstract

ABSTRACT The present work investigated the effect of fibre's presence on the densification of rotomoulding-grade polyethylene. Nevertheless, the presence of fibres during densification directly impacts the current understanding of how densification works during heating. The present work focuses fibre-reinforced polymer densification to study the effect of fibre addition on bubble formation during this process. A densification test was developed to observe and measure fibre addition's effect on polymer densification and bubble disappearance. The test focused on measuring the cross-section area corresponding to bubbles appearing in the melt and comparing results to clarify whether fibre addition alters this process. Results showed that, although heating parameters and particle size affect bubble morphology and disappearance, fibres’ presence does not substantially affect the bubbles. Finally, results showed that polymer-fibre characterisation plays a crucial role in sintering and densification, and work is continuing to present conclusions about how sintering and densification affect the full-scale manufacturing process.

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纤维增强复合聚合物在滚塑条件下的致密化

摘要:本文研究了纤维的存在对滚塑级聚乙烯致密化的影响。然而，在致密化过程中纤维的存在直接影响了目前对加热过程中致密化如何工作的理解。本文以纤维增强聚合物致密化为研究对象，研究纤维的加入对致密化过程中气泡形成的影响。采用致密化试验方法，观察和测定纤维添加量对聚合物致密化和气泡消失的影响。测试的重点是测量熔体中出现气泡对应的横截面面积，并比较结果，以澄清纤维的加入是否改变了这一过程。结果表明，虽然加热参数和颗粒大小会影响气泡的形态和消失，但纤维的存在对气泡的影响并不大。最后，结果表明，聚合物纤维的特性在烧结和致密化中起着至关重要的作用，并且关于烧结和致密化如何影响全尺寸制造过程的工作仍在继续。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Plastics, Rubber and Composites 工程技术-材料科学：复合

CiteScore

4.10

自引率

0.00%

发文量

审稿时长

4 months

期刊介绍： Plastics, Rubber and Composites: Macromolecular Engineering provides an international forum for the publication of original, peer-reviewed research on the macromolecular engineering of polymeric and related materials and polymer matrix composites. Modern polymer processing is increasingly focused on macromolecular engineering: the manipulation of structure at the molecular scale to control properties and fitness for purpose of the final component. Intimately linked to this are the objectives of predicting properties in the context of an optimised design and of establishing robust processing routes and process control systems allowing the desired properties to be achieved reliably.