Identifying the properties of epoxy composites filled with the solid phase of wastes from metal enterprises

Authors

DOI:

https://doi.org/10.15587/1729-4061.2019.186050

Keywords:

cold curing epoxy composite, metallurgical dust, impact resistance, cross-linking degree

Abstract

The article addresses the issue related to the disposal of dust from steel industry as a reinforcing filler for epoxy composites. The polymer composition of "cold welding" that has been developed and studied includes epoxy dian oligomer, amine hardener and the filler – finely dispersed waste of metals. Polyethylene polyamine was used as a hardener in order to improve heat resistance and strength characteristics. Manganese triacetate was used in order to decrease the temperature and reduce the time of curing.

The possibility was established to dispose of finely dispersed metal-containing waste from metallurgical production to be used a filler for epoxy composites of cold curing. It was revealed that the optimal content of dusts from foundries in the composite is at the level of 45–60 %. At this content, there is the highest impact resistance at the level of 40–50 MPa and a softening temperature in the range of 170–190 °С. It was established that at an increase in the amount of a filler from 40 % to 70 %, the cross-linking degree increases by 88 % to 98 %, respectively. However, at the content of the filler less than 45 % or exceeding 60 %, the impact resistance of the resulting composites decreases. At the content of a filler in the composite less than 45 %, the cause of low values of impact resistance and softening temperature could be the low cross-linking degree, less than 90 %. A decrease in these properties of composites at the content of the filler exceeding 60 % could be associated with the formation of a heterogeneous structure of filler. In the compositions with the highest performance characteristics, there is an optimized content of the filler and catalyst. Using a hardener and a curing catalyst in quantities of 3–3.5 and 1.5–2 %, respectively, makes it possible to shorten curing time by up to 2 hours. In general, the resulting epoxy composites are superior in their performance to known cold-curing analogs.

The dependences of impact resistance, softening temperature, and cross-linking degree on the content of waste in the composite were derived, which make it possible to calculate the optimal formulation for composites depending on the required properties

Author Biographies

Oleksii Shestopalov, National Technical University “Kharkiv Polytechnic Institute” Kyrpychova str., 2, Kharkiv, Ukraine, 61002

PhD, Associate Professor

Department of Chemical Technique and Industrial Ecology

 

Oleksandr Briankin, National Technical University “Kharkiv Polytechnic Institute” Kyrpychova str., 2, Kharkiv, Ukraine, 61002

Postgraduate Student

Department of Chemical Technique and Industrial Ecology

Vladimir Lebedev, National Technical University “Kharkiv Polytechnic Institute” Kyrpychova str., 2, Kharkiv, Ukraine, 61002

PhD, Associate Professor

Department of Technology of Plastic Masses and Biologically Active Polymers

Olexiy Troshin, National Technical University “Kharkiv Polytechnic Institute” Kyrpychova str., 2, Kharkiv, Ukraine, 61002

PhD, Associate Professor

Department of Integrated Technologies, Processes and Apparatuses

Educational and Scientific Institute of Chemical Technology and Engineering

Arsen Muradian, Odessa National Maritime University Mechnikova str., 34, Odessa, Ukraine, 65029

PhD, Associate Professor

Department of Port Operation and Cargo Handling Technology

Valentyna Ocheretna, Odessa National Maritime University Mechnikova str., 34, Odessa, Ukraine, 65029

PhD

Department of Navigation and Maritime Safety

Nadiia Yaremenko, Odessa National Maritime University Mechnikova str., 34, Odessa, Ukraine, 65029

PhD, Associate Professor

Department of Theoretical and Applied Mechanics

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Published

2019-12-05

How to Cite

Shestopalov, O., Briankin, O., Lebedev, V., Troshin, O., Muradian, A., Ocheretna, V., & Yaremenko, N. (2019). Identifying the properties of epoxy composites filled with the solid phase of wastes from metal enterprises. Eastern-European Journal of Enterprise Technologies, 6(10 (102), 25–31. https://doi.org/10.15587/1729-4061.2019.186050

Issue

Vol. 6 No. 10 (102) (2019): Ecology

Section

Ecology

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Copyright (c) 2019 Oleksii Shestopalov, Oleksandr Briankin, Vladimir Lebedev, Olexiy Troshin, Arsen Muradian, Valentyna Ocheretna, Nadiia Yaremenko

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