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

Materials ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 4674
Author(s):  
Łukasz Kampa ◽  
Agnieszka Chowaniec ◽  
Aleksandra Królicka ◽  
Łukasz Sadowski
Keyword(s):  
Epoxy Resin ◽  
Cement Mortar ◽  
Reference Sample ◽  
Automatic Device ◽  
Polypropylene Fibers ◽  
Cement Slurry ◽  
Optimum Content ◽  
Resin Coating ◽  
Strength Tests ◽  
Epoxy Resin Coating

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.

scholarly journals The effect of the addition of granite powder to the primer on the pull-off strength of epoxy resin coatings

2021 ◽  
Author(s):  
Lukasz Kampa ◽  
Keyword(s):  
Epoxy Resin ◽  
Reference Sample ◽  
Control Sample ◽  
Automatic Device ◽  
Measurement Time ◽  
Resin Layer ◽  
Strength Tests ◽  
Granite Powder

This article describes the effect of adding waste granite powder to the epoxy resin layer on its pull-off strength. The substrate was C30 / 37 concrete. The priming resin was modified with 10%, 20%, 30%, 40%, 50%, and 60% of granite powder. For control purposes, a sample was also made without the addition of powder. For each material configuration, four strength tests were carried out with the use of an automatic device recording both the pull-off strength and the measurement time. The obtained results were compared with the control sample. The best result in the test was obtained with the addition of 20%, which gave an increase of 19% compared to the reference sample. An equally good result was obtained with the addition of 10% granite powder (increase by 11%). The addition of a larger amount of the additive resulted in a decrease or a slight increase in the pull-off strength compared to the reference sample. Additionally, the additive has been found to darken the coating, and the coating becomes completely opaque when added above 50%.

Sodium Fluoride-Assisted Hydrothermal Exfoliation of Graphite into Graphene as Filler of Epoxy Resin Coating To Protect Aluminum

2019 ◽  
Vol 123 (45) ◽  
pp. 27969-27977 ◽  
Author(s):  
Shengkai Yang ◽  
Kelei Zhuo ◽  
Zezhong Zhang ◽  
Jianming Liu ◽  
Guangyue Bai ◽  
...  
Keyword(s):  
Epoxy Resin ◽  
Sodium Fluoride ◽  
Resin Coating ◽  
Epoxy Resin Coating

scholarly journals Research on Mechanical Properties of Nano-modified Epoxy Resin Color Anti-skid pavement Materials

2021 ◽  
Vol 233 ◽  
pp. 01097
Author(s):  
Yongqiang Zhong
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Coating Material ◽  
Surface Material ◽  
Pavement Materials ◽  
Material Test ◽  
Resin Coating ◽  
Before And After ◽  
Epoxy Resin Coating ◽  
Modified Epoxy

By referring to the domestic and foreign researches on color anti-skid pavement, the composition of epoxy resin coating material for color antiskid pavement is designed. The purpose of the experiment is to analyze the effect of nano-modified epoxy resin coating by adding 2.5% nano-organic montmorillonite modifier to the existing color anti-skid pavement surface material. Test and compare the change of mechanical properties of nano-modified epoxy resin coating binder before and after nano-modified. Then the effect of nano-modification is analyzed.

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