Surface Modification of Metallic Inserts for Enhancing Adhesion at the Metal–Polymer Interface

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 sandblasti...

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Main Authors: Libor Novák, Ladislav Fojtl, Markéta Kadlečková, Lukáš Maňas, Ilona Smolková, Lenka Musilová, Antonín Minařík, Aleš Mráček, Tomáš Sedláček, Petr Smolka
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/13/22/4015
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author Libor Novák
Ladislav Fojtl
Markéta Kadlečková
Lukáš Maňas
Ilona Smolková
Lenka Musilová
Antonín Minařík
Aleš Mráček
Tomáš Sedláček
Petr Smolka
author_facet Libor Novák
Ladislav Fojtl
Markéta Kadlečková
Lukáš Maňas
Ilona Smolková
Lenka Musilová
Antonín Minařík
Aleš Mráček
Tomáš Sedláček
Petr Smolka
author_sort Libor Novák
collection DOAJ
description 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.
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spelling doaj.art-ab5054ec6b5e4e3f81b1cbca8e5c36ea2023-11-23T01:10:28ZengMDPI AGPolymers2073-43602021-11-011322401510.3390/polym13224015Surface Modification of Metallic Inserts for Enhancing Adhesion at the Metal–Polymer InterfaceLibor Novák0Ladislav Fojtl1Markéta Kadlečková2Lukáš Maňas3Ilona Smolková4Lenka Musilová5Antonín Minařík6Aleš Mráček7Tomáš Sedláček8Petr Smolka9Department of Physics and Materials Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, 760 01 Zlín, Czech RepublicCentre of Polymer Systems, Tomas Bata University in Zlín, Třída Tomáše Bati 5678, 760 01 Zlín, Czech RepublicDepartment of Physics and Materials Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, 760 01 Zlín, Czech RepublicCentre of Polymer Systems, Tomas Bata University in Zlín, Třída Tomáše Bati 5678, 760 01 Zlín, Czech RepublicCentre of Polymer Systems, Tomas Bata University in Zlín, Třída Tomáše Bati 5678, 760 01 Zlín, Czech RepublicDepartment of Physics and Materials Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, 760 01 Zlín, Czech RepublicDepartment of Physics and Materials Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, 760 01 Zlín, Czech RepublicDepartment of Physics and Materials Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, 760 01 Zlín, Czech RepublicCentre of Polymer Systems, Tomas Bata University in Zlín, Třída Tomáše Bati 5678, 760 01 Zlín, Czech RepublicDepartment of Physics and Materials Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, 760 01 Zlín, Czech RepublicA 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.https://www.mdpi.com/2073-4360/13/22/4015insertmetalpolymeradhesioninterface
spellingShingle Libor Novák
Ladislav Fojtl
Markéta Kadlečková
Lukáš Maňas
Ilona Smolková
Lenka Musilová
Antonín Minařík
Aleš Mráček
Tomáš Sedláček
Petr Smolka
Surface Modification of Metallic Inserts for Enhancing Adhesion at the Metal–Polymer Interface
Polymers
insert
metal
polymer
adhesion
interface
title Surface Modification of Metallic Inserts for Enhancing Adhesion at the Metal–Polymer Interface
title_full Surface Modification of Metallic Inserts for Enhancing Adhesion at the Metal–Polymer Interface
title_fullStr Surface Modification of Metallic Inserts for Enhancing Adhesion at the Metal–Polymer Interface
title_full_unstemmed Surface Modification of Metallic Inserts for Enhancing Adhesion at the Metal–Polymer Interface
title_short Surface Modification of Metallic Inserts for Enhancing Adhesion at the Metal–Polymer Interface
title_sort surface modification of metallic inserts for enhancing adhesion at the metal polymer interface
topic insert
metal
polymer
adhesion
interface
url https://www.mdpi.com/2073-4360/13/22/4015
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