Surface modification of metallic inserts for enhancing adhesion at the metal–polymer interface
| Autor: | Lenka Musilová, Ilona S. Smolkova, Ladislav Fojtl, Libor Novák, Lukáš Maňas, Markéta Kadlečková, Petr Smolka, Tomas Sedlacek, Antonín Minařík, Aleš Mráček |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Materials science Microscope Polymers and Plastics metal Scanning electron microscope polymer Organic chemistry General Chemistry Polymer Adhesion insert Article law.invention adhesion QD241-441 chemistry law Surface roughness Surface modification interface Adhesive Composite material Duralumin |
| Zdroj: | Polymers Polymers, Vol 13, Iss 4015, p 4015 (2021) Volume 13 Issue 22 |
| Popis: | A combination of mechanical and chemical treatments was utilized to modify the surface textures of copper and duralumin inserts in order to enhance the adhesion at the metal–polymer interface and provide an adhesive joint with a high loadbearing capacity. Pretreatment of the surfaces with sandblasting was followed by etching with various chemical mixtures. The resulting surface textures were evaluated with a scanning electron microscope (SEM) and an optical confocal microscope. Surface geometry parameters (Sa, Sz, and Sdr) were measured and their relationships to the adhesion joint strength were studied. It was found that the virgin and purely mechanically treated inserts resulted in joints with poor loadbearing capacity, while a hundredfold (duralumin) and ninetyfold (copper) increase in the force to break was observed for some combinations of mechanical and chemical treatments. It was determined that the critical factor is overcoming a certain surface roughness threshold with the mechanical pretreatment to maximize the potential of the mechanical/chemical approach for the particular combination of material and etchant. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. RP/CPS/2020/003; IGA/FT/2021/010 Ministry of Education, Youth and Sports of the Czech Republic DKRVO [RP/CPS/2020/003]; TBU [IGA/FT/2021/010] |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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