Accelerated Weathering Testing of Polypropylene Tank Materials

Abstract:

Polypropylene expansion tanks have been subjected to accelerated weathering testing according to the developed procedure of accelerated weathering testing. The objective of the study was to determine an arbitrary lifetime of tanks under operating conditions at higher temperatures, humidity, and UV radiation (climate regions of India and Venezuela). As a result of the studies of the polypropylene expansion tanks the following has been established: the failure of the both tank types (A and B) occurred in the area of the weld in the upper and lower part after four arbitrary years of accelerated weathering testing; the stress-strain behaviour in the outer tank walls is influenced by the interior structure of the partitions. The tanks with a larger opening in the partitions feature significant deformations when the inner pressure increases as a result of a higher temperature; the “sensitive indicators” of ageing and failure of the tank material have been found: elongation at break, flexural modulus, and impact strength.

• Periodical: Materials Science Forum (Volume 1037)
• Pages: 154-160
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1037.154
• Online since: July 2021
• Authors: Alfred M. Suleymanov, Ekaterina B. Tuisina, Lenar N. Shafigullin*, Roman Rinberg, Azat T. Gabdrakhmanov
• Keywords: Accelerated Weathering Testing, Polypropylene Tank

References

[1] Pavlov N.N. Starenie plastmass v estestvennykh i iskusstvennykh usloviyah [Natural and artificial ageing of plastics]. Moscow, Khimiya Publ., (1982).

[2] Kausch G. Razrushenie polimerov [Polymer fracture]. Moscow, Mir Publ., (1981).

[3] Bartenev G.M., Frenkel S.Ya. Fizika polimerov [Physics of polymers]. Leningrad, Khimiya Publ., (1990).

[4] Kochnev A.M., Spiridonova R.R., Galibeev S.S. Khimiya vysokomolekulyarnykh soedineniy [Chemistry of macromolecular compounds]. Kazan, Kazan State Technological University Publ., (2010).

[5] Sulejmanov A M 2006 Experimental and theoretical basics of prediction and increase in durability of construction soft shell materials. Abstract doctor of Technical Sciences (Kazan: Kazan State University of Architecture and Civil Engineering) p.32.

[6] Information at https://www.binder-world.com.

[7] L.N. Shafigullin, N.V. Romanova, I.F. Gumerov, G.R. Shafugullina, A.R. Ibragimov, A.I. Nizamova, Aspects of using accelerated weather testing methods for polymeric materials, IOP Conference Series: Materials Science and Engineering. 412 (2018) 012069.

DOI: 10.1088/1757-899x/412/1/012069

[8] Belinsky V.A. Ultrafioletovaya radiatsiya Solntsa i neba [Ultraviolet radiation of the Sun and sky]. Moscow, MGU Publ., (1968).

[9] GOST 24482-80. Macroclimatic regions of the world with tropic climate. Regionalizing and statistical parameters of climatic factors for technical purposes. Moscow, Izdatelstvo Standartov Publ., 1981. 98 p. (In Russian).

[10] GOST 9.401-91. Unified system of corrosion and ageing protection. Paint coatings. General requirements and methods of accelerated tests on resistance to the action of climatic factors. Moscow, Standartinform Publ., 2007. 105 p. (In Russian).

[11] Maslov V.V. Vlagostoykost yelektricheskoy izolyatsii [Water resistance of electric insulation]. Moscow, Energiya Publ., (1973).

[12] Mikhaylov M.M. Vlagopronitsaemost organicheskikh diyelektrikov [Moisture permeability of organic dielectrics]. Moscow, Gosyenergoizdatelstvo Publ., (1960).

[13] Information at https://td-tehnotron.com/ [accessed 22.12.2020].

[14] Information at https://tat-him.com/katalog/1-polipropilen-balen-02015 [accessed 22.12.2020].

[15] Information at https://mapra.tiu.ru/ [accessed 22.12.2020].