The effect of antioxidants for thermostablization upon high Density polyethylene by using various Techniques
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Date
2016
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Journal ISSN
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Publisher
Sebha University
Abstract
Themost important additives of thermostabilization of High Density Polyethylene (HDPE) realized through the action of primary antioxidantssuch as phenolic antioxidants and secondary antioxidants as aryl phosphates.
The efficiency of two secondary antioxidants, commercially named Irgafos 168 and Weston 399,investigated by using different physical, mechanical, spectroscopic and colorimetric methods. The effect of both antioxidants on the processing stability and long-term stability of HDPE produced in RasLanuf Oil and Gas processing Company were thatmeasured and compared.
The combination of antioxidants, Irgafos 168 with Irganox 1010,as used in smaller concentration, results to cause a synergetic effect against thermo-oxidation and protect better than the combination of Weston 399 with Irganox 1010 against the colour change at processing temperature and during long-term oxidation process.
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Keywords
FTIR, DSC, oven aging, antioxidant.