Evaluation of different bonding strategies for glass fibre-reinforced epoxy resin with embedded elastomer layers

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

Plastics, Rubber and Composites Pub Date : 2022-08-12 DOI:10.1080/14658011.2022.2111512

J. Semar, D. May, P. Mitschang

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引用次数: 0

Abstract

ABSTRACT Embedding elastomer layers in fibre reinforced polymer composites can be used to improve their performance. In this work, the creation of such composites via resin transfer moulding has been experimentally investigated with a focus on bonding between elastomer and composite layers. Different process variants were used and tests similar to ISO 6922 were performed to determine bonding strength. Bonding strengths were similar for most process variants (4–5 MPa), but differences in failure mode were observed. When the elastomer was vulcanised before injection (co-bonding), the specimens failed adhesively but microsections show a homogenous material. When injection was done prior or simultaneously (co-curing) to vulcanisation, cohesive or combined failure could be achieved but microsections reveal pores in the elastomer. This makes co-curing promising for structural applications but further research is necessary to achieve a flawless material. Co-bonding is a simpler process but adhesive failure is undesirable. However, it might be suitable for non-structural parts.

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玻璃纤维增强环氧树脂内嵌弹性体层粘合策略的评价

摘要在纤维增强聚合物复合材料中嵌入弹性体层可以提高其性能。在这项工作中，通过树脂转移模塑的这种复合材料的创建已经实验研究，重点是弹性体和复合材料层之间的粘合。使用了不同的工艺变体，并进行了类似于ISO 6922的测试，以确定粘合强度。大多数工艺变体(4-5 MPa)的粘结强度相似，但在失效模式上存在差异。当弹性体在注射前进行硫化(共粘合)时，试样粘附失败，但显微切片显示材料均匀。如果在硫化之前或同时进行注射(共固化)，可能会发生内聚或联合破坏，但微观切片显示弹性体中存在孔隙。这使得共固化在结构应用中很有前景，但需要进一步的研究来实现完美的材料。共粘接是一种更简单的方法，但不希望出现粘接失效。然而，它可能适用于非结构部件。

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.