Loginova A.A. Aging processes impact on elastic-dissipative properties of the rubber elements in aggressive environment

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Parent Category: Geo-Technical Mechanics, 2016

Category: Geo-Technical Mechanics, 2016, Issue 128

AGING PROCESSES IMPACT ON ELASTIC-DISSIPATIVE PROPERTIES OF THE RUBBER ELEMENTS IN AGGRESSIVE ENVIRONMENT

Loginova A.A.

Loginova A.A., M.S (Tech)
(IGTM NAS of Ukraine)

 Abstract. Experimental studies were conducted with the purpose to determine a cumulative effect of the aging processes on the elastic-dissipative properties of elastomers in the acidic aggressive environment. In particular, an impact of sulfuric acid with concentrations of 1.5%, 3%, 5% and 10% on the properties of rubber vibration isolators of the ВР201 type was studied. For each of the concentrations, three pairs of samples were tested, elastic-dissipative properties of which differed by not more than 3%. Static rigidity and dissipation factor were determined per each 500 hours. In result of the studies, lawful descriptions and functional interdependences never known before are established, which determine changes of rubber rigidity and dissipation factor in the considered conditions. A conclusion has been made that, in contrast to the natural aging, destruction process predominates when elastomers, made of rubber under the investigation, age in acidic aggressive environment. These dependencies can be applied for predicting durability of rubber elements and units operated in acidic aggressive environment.

Keywords: rubber elements and units, durability of elastomers, acidic aggressive environment, elastic-dissipative properties of rubber.

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REFERENCES

1. Poturaev, V.N., Dyrda, V.I. and Nadutyy, V.P. (1974), Rezina v gornom dele [Rubber in the mining], Nedra, Moscow, USSR.

2. Poturaev, V.N., Franchuk, V.P. and Nadutyy, V.P. (2002), Vibratsionnaya tekhnika i tekhnologii v energoemkikh proizvodstvakh [Vibratory equipment and technologies in energy-intensive industries], NGA Ukrainy, Dnepropetrovsk, Ukraine.

3. Nadutyy, V.P.(2002), Modelirovanie i sredstva intensifikatsii drobilno-sortirovochnykh kompleksov [Modeling and means intensification of crushing and screening plant], NGA Ukrainy, Dnepropetrovsk, Ukraine.

4. Bulat, A.F., Dyrda,V.I., Zvyagilskiy, Je.L. and Kobets, A.S. (2012), Prikladnaya mekhanika uprugonasledstvennykh sred [Applied mechanics of elastic media], Naukova dumka, Kiev, Ukraine.

5. Larin, V.K. and Zaytsev R.V. (1999), «Experience of industrial application of heap leaching of uranium ores»,Gorny zhurnal, vol. 12, pp. 51-54.

6. Lyashenko, V.I. (1999), «Environmental protection and human in the region for the extraction of uranium», Gorny zhurnal, vol. 12, pp. 65-66.

7. Bulat, A.F., Dyrda,V.I., Zvyagilskiy, Je.L., Loginova, A.A., Puhalskiy,V.N., Nadutyy V.P., Lisitsa, N.I. and Morus, V.L. (2016), Elastomery v gornom dele [Elastomers in the mining industry], Naukova dumka, Kiev, Ukraine.

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About the author

Loginova Anastasiya Aleksandrovna, Master of Science, First category engineer of Department of Mechanics of Mineral Processing Machines and Processes, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

 

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