№3 (2017) 6

https://doi.org/10.15407/polymerj.39.03.183

The influence of renewable functional additives based on vegetable oil on the destruction of polyethylene

T.V. Dmitrieva, V.I. Bortnytskyi, S.V. Riabov, S.M. Kobylinskyi, S.K. Krymovska

Institute of Macromoleculat Chemistry NAS of Ukraine

48, Kharkivs’ke shose, Kyiv, 02160, Ukraine

Polym. J., 2017, 39, № 3: 183-187.

Section: Structure and properties.

Language: Ukrainian.

Abstract:

The effect of the low quantity of renewable functional additives on polyethylene degradation has been studied. Modified soybean and rapeseed oil as additives were used and added in an amount of 1% of the weight to the polyethylene compositions. The strength characteristics of the compositions after UV irradiation and the effectiveness of modified vegetable oils were established. It’s shown that the loss of strength of the composites after UV-irradiation was equal to 38 and 55 % and loss of elongation – 88 and 96% for rapeseed and soybean oil, respectively.

The thermal destruction of polyethylene compositions with functional additives by pyrolytic mass spectrometry was studied. An analysis of the results shows that structural transformations take place due to the added renewable additives, which are fixed by mass spectrometry. It is revealed the number and intensity of ion fragments are higher for the composites containing additives than for the initial PE.

Keywords: polyethylene, degradation, UV-irradiation, renewable functional additives, soybean oil, rapeseed oil, mass spectrometry.

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