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Volume 14
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10.3390/cryst14060558
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Article

Application of Organo-Modified Silica Nanoparticles to Improve the Load-Bearing Capacity of Bonded Joints of Dissimilar Steel Substrates

by
Anna Guzanová
1,
Dagmar Draganovská
1,*,
Miroslav Tomáš
2,
Petr Szelag
3,
Nikita Veligotskyi
1,
Miroslav Džupon
4 and
Marek Vojtko
4
1
Department of Technology, Materials and Computer Supported Production, Faculty of Mechanical Engineering, Technical University of Košice, Mäsiarska 74, 040 01 Košice, Slovakia
2
Department of Automotive Production, Faculty of Mechanical Engineering, Technical University of Košice, Mäsiarska 74, 040 01 Košice, Slovakia
3
Pragochema spol. s.r.o., Přátelství 550, 104 00 Prague 10—Uhříněves, Czech Republic
4
Institute of Materials Research, Slovak Academy of Sciences, Watsonova 1935/47, 040 01 Košice, Slovakia
*
Author to whom correspondence should be addressed.
Crystals 2024, 14(6), 558; https://doi.org/10.3390/cryst14060558
Submission received: 30 April 2024 / Revised: 5 June 2024 / Accepted: 12 June 2024 / Published: 17 June 2024
(This article belongs to the Special Issue Advanced Crystalline Materials, Mechanical Properties and Innovative Production Systems (2nd Edition))
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Abstract

The paper deals with the joining of dissimilar steels by adhesive bonding. The base materials for the experimental work were deep-drawn low-carbon steel DC04, and hot-dip galvanized HSLA steel HX340LAD+Z. Adhesive bonding was performed using rubber-based and epoxy-based adhesives. The research aimed to verify the importance of surface preparation of steel substrates using a formulation with organically modified silica nanoparticles and epoxy organic functional groups, where one end of the functional group can be incorporated into the organic binder of the coating material and the other end can be firmly bonded to substances of an inorganic nature (metals). Since the binder base of adhesives is very similar to that of coatings, verifying the performance of this surface preparation when interacting with the adhesive is necessary. The load-bearing tensile shear capacity of single-lapped joints and the resistance of the joints against corrosion-induced disbanding in a climate chamber were tested. The energy dissipated by the joints up to fracture was calculated from the load-displacement curves. Bonded joints with organosilane were compared with joints without surface preparation and joints prepared by chroman-free zirconate passivation treatment. Exposure of the joints in the climatic chamber did not cause a relevant reduction in the characteristics of the joints. Organosilicate formulation was proved effective when bonding ungalvanized steels with a rubber-based structural adhesive, where it improves the bond quality between the adhesive and the substrate.
Keywords: adhesive bonding; load-bearing capacity of joints; dissipated energy up to fracture adhesive bonding; load-bearing capacity of joints; dissipated energy up to fracture

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MDPI and ACS Style

Guzanová, A.; Draganovská, D.; Tomáš, M.; Szelag, P.; Veligotskyi, N.; Džupon, M.; Vojtko, M. Application of Organo-Modified Silica Nanoparticles to Improve the Load-Bearing Capacity of Bonded Joints of Dissimilar Steel Substrates. Crystals 2024, 14, 558. https://doi.org/10.3390/cryst14060558

AMA Style

Guzanová A, Draganovská D, Tomáš M, Szelag P, Veligotskyi N, Džupon M, Vojtko M. Application of Organo-Modified Silica Nanoparticles to Improve the Load-Bearing Capacity of Bonded Joints of Dissimilar Steel Substrates. Crystals. 2024; 14(6):558. https://doi.org/10.3390/cryst14060558

Chicago/Turabian Style

Guzanová, Anna, Dagmar Draganovská, Miroslav Tomáš, Petr Szelag, Nikita Veligotskyi, Miroslav Džupon, and Marek Vojtko. 2024. "Application of Organo-Modified Silica Nanoparticles to Improve the Load-Bearing Capacity of Bonded Joints of Dissimilar Steel Substrates" Crystals 14, no. 6: 558. https://doi.org/10.3390/cryst14060558

APA Style

Guzanová, A., Draganovská, D., Tomáš, M., Szelag, P., Veligotskyi, N., Džupon, M., & Vojtko, M. (2024). Application of Organo-Modified Silica Nanoparticles to Improve the Load-Bearing Capacity of Bonded Joints of Dissimilar Steel Substrates. Crystals, 14(6), 558. https://doi.org/10.3390/cryst14060558

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