شماره ركورد كنفرانس :
5041
عنوان مقاله :
A Novel Method for Evaluating Thermal Degradation of Polyethylene: Time-Sweep Rheometry in the Air Atmosphere
Author/Authors :
A. Dordinejad-Kor Department of Polymer Engineering and Color Technology - Amirkabir University of Technology, Tehran, Iran , F. Sharif Department of Polymer Engineering and Color Technology - Amirkabir University of Technology, Tehran, Iran , M. Ebrahimi Department of Polymer Engineering and Color Technology - Amirkabir University of Technology, Tehran, Iran , R. Rashedi Department of Polymer Engineering and Color Technology - Amirkabir University of Technology, Tehran, Iran
كليدواژه :
Polyethylene , Time-Sweep Rheometry , Rheology , Thermal Degradation
عنوان كنفرانس :
The 10th International Chemical Engineering Congress & Exhibition (IChEC 2018)
چكيده فارسي :
فاقد چكيده فارسي
چكيده لاتين :
In this paper, a time-sweep rheometry method was used to evaluate the thermal degradation of a linear low density polyethylene. For this purpose, the rheometry was performed by time-sweep method in the air and nitrogen atmosphere. Storage modulus values were reported as a function of the time. According to the results, this method had a good repeatability. No degradation was observed under nitrogen atmosphere. The results showed that rheometry in presence of air caused a faster and more severe degradation of polyethylene. Higher temperatures shifted forward the onset of the degradation and caused the increase in the slope of the storage modulus-time curve.
