Test method to assess interface adhesion in composite bonding

IF 1.68 Q2 Dentistry

Applied Adhesion Science Pub Date : 2015-03-24 DOI:10.1186/s40563-015-0033-5

Sofia Teixeira de Freitas, Jos Sinke

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引用次数: 47

Abstract

This paper introduces a new type of peel tests dedicated to composite bonding: Composite Peel Tests. This test is inspired on the standard floating roller peel test widely used for metal bonding.

The aim of this study is to investigate the potential of the Composite Peel Test to assess interface adhesion in composite bonded structures. To this end, peel tests were performed with nine different types of adhesives and at two environmental temperatures, room temperature and +80°C. The results were compared with the standard floating roller peel tests with Aluminium adherends.

The results show that when using the Composite Peel Test good interface adhesion results either in cohesive failure of the adhesive or intra-laminar failure of the composite, while bad adhesion results in adhesive failure. In most cases of good interface adhesion, increasing the temperature favors cohesive failure of the adhesive in detriment of intra-laminar failure of the composite.

Peel strengths can be used as a quality indicator of interface adhesion only if using exactly the same type of flexible adherend (peeling-off member). Nevertheless, if cohesive failure is the dominant failure mode, the comparison between adhesives’ peel strength is consistent disregarding of the type of peel-off adherend. Composite Peel Tests are suitable to assess interface adhesion of composite bonded structures.

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评定复合材料粘合界面附着力的试验方法

本文介绍了一种用于复合材料粘接的新型剥离试验:复合剥离试验。本试验的灵感来自于广泛用于金属粘合的标准浮辊剥离试验。本研究的目的是探讨复合材料剥离试验的潜力，以评估复合材料粘结结构的界面附着力。为此，在室温和+80°C两种环境温度下，用九种不同类型的粘合剂进行剥离试验。并将试验结果与标准浮辊剥离试验进行了比较。结果表明:采用复合材料剥离试验时，界面粘附良好会导致胶粘剂粘结破坏或复合材料层内破坏，而粘附不良则会导致胶粘剂粘结破坏。在界面粘结良好的情况下，温度的升高有利于粘结剂的粘结破坏，而不利于复合材料的层内破坏。剥离强度只能作为界面粘附的质量指标，如果使用完全相同类型的柔性粘附(剥离构件)。然而，如果内聚破坏是主要的破坏模式，那么无论剥离胶粘剂的类型如何，胶粘剂的剥离强度比较是一致的。复合材料剥离试验适用于评价复合材料粘结结构的界面附着力。

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

Applied Adhesion Science Dentistry-Dentistry (miscellaneous)

自引率

0.00%

发文量

审稿时长

13 weeks

期刊介绍： Applied Adhesion Science focuses on practical applications of adhesives, with special emphasis in fields such as oil industry, aerospace and biomedicine. Topics related to the phenomena of adhesion and the application of adhesive materials are welcome, especially in biomedical areas such as adhesive dentistry. Both theoretical and experimental works are considered for publication. Applied Adhesion Science is a peer-reviewed open access journal published under the SpringerOpen brand. The journal''s open access policy offers a fast publication workflow whilst maintaining rigorous peer review process.