Effect of surface pretreatment on bonding of glass to metallic materials

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F24%3A00379366" target="_blank" >RIV/68407700:21220/24:00379366 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Effect of surface pretreatment on bonding of glass to metallic materials

Original language description

Pre-treatment of contact surfaces prior to bonding glass surfaces in metal-glass bonding is used in many industrial applications, from electronics and automotive manufacturing to construction and medical. The strengths of bonded joints and their properties can be affected by various factors such as surface cleanliness, degree of fouling, corrosion attack, surface roughness, surface wettability or various surface pretreatment technologies. Five suitable surface pretreatment technologies were selected for the research for a total number of sixty samples. For twelve samples, mechanical surface pretreatment (wiping with a clean cloth) and four chemical pretreatments were used each time. The chemical cleaning agents used were: naphtha, acetone, isopropanol and toluene solvent. For the research, glass specimens of 100x75x6 mm were made, with different surface chemistry on each side (one pure glass and the other with a tinning finish). These glass specimens were bonded to tear-off bodies made of two different metallic materials (Al alloy and AISI 316L steel). The shape of the tear-off bodies was used from the principle of adhesion test according to ISO 4624. One type of two-component adhesive Loctite EA 9455 was used for the experiment. The cleanliness of the glass surfaces after surface pretreatment before bonding was verified using viscous inks. The bonded joints were tested by tearing the bodies from the glass surface based on the principle of adhesion test according to ISO 4624. The result was the evaluation of the strength of the bonded joints and a visual test of the classification of the percentage of each type of failure at different surface pretreatments. From the test using viscous inks it was found that the sample cleaned with isopropanol was the best degreased. For the Al alloy matrix tear body, the highest breaking forces occurred for the acetone surface pretreatment and the lowest for the isopropanol surface pretreatment. In the visual classification test of the percentage of each type of failure, it was found that 10 out of 30 samples had cohesive failure in the base material of the glass. For the AISI 316L tear body, the highest breaking forces occurred for the surface pretreatment with toluene solvent and the lowest also for isopropanol. For the visual classification test of the percentage of each type of failure, it was found that 15 out of 30 samples had cohesive failure in the base glass material. The different metallic materials of the tear-off bodies had no significant effect on the measurement results. The best surface pretreatment according to all aspects discussed was the mechanical pre-cleaning and acetone cleaning method.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/GA23-06016S" target="_blank" >GA23-06016S: Surface treatment of glass and its influence on the reliability of adhesive bonding for glass structures at elevated temperatures</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů