Thermo-Oxidation of Polyethylene Stabilized with Irganox 1010 and Tinuvin 622
- 1 September 1990
- journal article
- research article
- Published by Taylor & Francis in International Journal of Polymeric Materials and Polymeric Biomaterials
- Vol. 13 (1-4) , 227-235
- https://doi.org/10.1080/00914039008039478
Abstract
Thermal oxidation of polyethylene stabilized with the mixture of Irganox 1010 and sterically hindered amine Tinuvin 622 confirmed that the occurrence of synergism or antagonism in the effect of sterically hindered amines towards antioxidants is concentration dependent. Provided that the concentration of phenolic antioxidant Irganox 1010 in polytheylene exceeds that of Tinuvin 622, synergism is observed at 185 and 190°C. Chemiluminescence, oxygen absorption method, nonisothermal differential scanning calorimetry (DSC) and differential thermal analysis (DTA) were used for testing of stabilizing efficiency of mixtures of stabilizers and the mutual correspondence of the results have been pointed out.Keywords
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