| Issue |
MATEC Web Conf.
Volume 244, 2018
Innovative Technologies in Engineering Production (ITEP’18)
|
|
|---|---|---|
| Article Number | 01019 | |
| Number of page(s) | 12 | |
| Section | Progressives Technologies | |
| DOI | https://doi.org/10.1051/matecconf/201824401019 | |
| Published online | 05 December 2018 | |
Effect of incorrect mix ratio on strength of two component adhesive Butt-Joints tested at elevated temperature
Lublin University of Technology, Faculty of Mechanical Engineering, Nadbystrzycka 36, 20-618 Lublin, Poland
j.szabelski@pollub.pl
1 Corresponding author: j.szabelski@poiiub.pl
The aim of this study was to determine the impact of the incorrect mix ratio on the strength of joints bonded with a commercial epoxy adhesive compo-sition. The performance of cold-cured as well as accelerated cured butt joints was monitored at elevated temperature conditions. The obtained data was subjected to statistical analysis to show the correlation between joint strength at high temperature and incorrect mix ratio. The degradation of adhesive material properties with increase of hardener ratio in adhesive material was observed, as well as the change in failure type from mixed type to clearly cohesive (for inadequate volume of harde-ner) or adhesive (for excessive amount of hardener). Surprisingly insufficiency of hardener doesn’t affect the strength of joint in such manner. General recommend-dation were drawn for the preparation of two-component epoxy adhesives for joints to be used in elevated temperature, particularly when uncertainty regarding the correct resin/hardener mix ratio and future research was planned.
Key words: Adhesive joints / Adhesive materials / Tensile strength / Testing / Elevated temperature / Incorrect mixing ratio
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.