The Effect of the Addition of Polypropylene Fibers to Primer on the Pull-Off Strength of Epoxy Resin Coatings

Kampa, Łukasz; Chowaniec, Agnieszka; Królicka, Aleksandra; Sadowski, Łukasz

doi:10.3390/ma13204674

Open AccessArticle

The Effect of the Addition of Polypropylene Fibers to Primer on the Pull-Off Strength of Epoxy Resin Coatings

¹

Department of Building Engineering, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland

²

Department of Metal Forming, Welding and Metrology, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland

^*

Author to whom correspondence should be addressed.

Materials 2020, 13(20), 4674; https://doi.org/10.3390/ma13204674

Submission received: 13 September 2020 / Revised: 13 October 2020 / Accepted: 15 October 2020 / Published: 20 October 2020

(This article belongs to the Collection Advanced Civil Engineering Materials: From Synthesis to Application)

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Abstract

This article describes the effect of adding polypropylene fibers to primer on the pull-off strength of epoxy resin coatings. Investigated primers were laid on substrates made of cement mortar and cement slurry. The primer was made of epoxy resin modified with the addition of 0.5%, 1%, 1.5% and 2% of polypropylene fibers. One reference sample was made without the addition of fibers. Then, an epoxy resin coating was applied to each substrate. Four pull-off strength tests were performed for each material configuration. For this purpose, an automatic device for measuring the pull-off strength of the coatings was used. The results were compared with the results obtained for the reference sample. The optimum content of polypropylene fibers was found to be in the range of 0.5–1.0 wt. % of the mass of the resin. One percent of fibers was optimum for the epoxy resin laid on the cement slurry, while 0.5 wt. % of fibers was optimum for the mortar substrate. The addition of a higher amount of polypropylene fibers resulted in a lower pull-off strength of coatings than for the reference sample.

Keywords: coating; epoxy resin; pull-off strength; polypropylene fibers

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MDPI and ACS Style

Kampa, Ł.; Chowaniec, A.; Królicka, A.; Sadowski, Ł. The Effect of the Addition of Polypropylene Fibers to Primer on the Pull-Off Strength of Epoxy Resin Coatings. Materials 2020, 13, 4674. https://doi.org/10.3390/ma13204674

AMA Style

Kampa Ł, Chowaniec A, Królicka A, Sadowski Ł. The Effect of the Addition of Polypropylene Fibers to Primer on the Pull-Off Strength of Epoxy Resin Coatings. Materials. 2020; 13(20):4674. https://doi.org/10.3390/ma13204674

Chicago/Turabian Style

Kampa, Łukasz, Agnieszka Chowaniec, Aleksandra Królicka, and Łukasz Sadowski. 2020. "The Effect of the Addition of Polypropylene Fibers to Primer on the Pull-Off Strength of Epoxy Resin Coatings" Materials 13, no. 20: 4674. https://doi.org/10.3390/ma13204674

APA Style

Kampa, Ł., Chowaniec, A., Królicka, A., & Sadowski, Ł. (2020). The Effect of the Addition of Polypropylene Fibers to Primer on the Pull-Off Strength of Epoxy Resin Coatings. Materials, 13(20), 4674. https://doi.org/10.3390/ma13204674

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The Effect of the Addition of Polypropylene Fibers to Primer on the Pull-Off Strength of Epoxy Resin Coatings

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