Mechanisms of stabilisation of high density polyethylene against oxidation using highly dispersed Fe–FeO mixtures

Authors: Ozden S.¹; Hatsukova M.A.¹; Mashukov H.I.¹; Kozlov G.V.¹

Source: Plastics, Rubber and Composites, Volume 29, Number 5, May 2000 , pp. 212-215(4)

Publisher: Maney Publishing

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Abstract:

The resistance of high density polyethylene to thermal oxidation has been improved by addition of highly dispersed particles of Fe–FeO. Specimens were exposed to thermal aging in air at 80°C, and their mechanical behaviour under tensile stress was then investigated. It was shown that Fe–FeO acted as a stabiliser for high density polyethylene, improving its thermal stability and mechanical properties. The factors responsible for these improvements were an increase in the amount of interphase between the crystalline and amorphous phases, decreased crystallite size, and increased network entanglement density.

Document Type: Regular paper

Affiliations: 1: the Department of Mechanical Engineering, Erciyes University, Talas 38 039 Kayseri, Turkey

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