شماره ركورد كنفرانس :
5041
عنوان مقاله :
Effect of Residual Catalyst Levels and Melt Processing on Yellowness Index of Linear Low Density Polyethylenes
Author/Authors :
A. Dordinejad-Kor Research and Development Center - Jam Petrochemical Company - South Pars Special Economic Zone, Asalouyeh, Iran , R. Rashedi Research and Development Center - Jam Petrochemical Company - South Pars Special Economic Zone, Asalouyeh, Iran
كليدواژه :
Polyethylene , Residual Catalyst , Yellowness Index , Multiple Extrusion
عنوان كنفرانس :
The 10th International Chemical Engineering Congress & Exhibition (IChEC 2018)
چكيده فارسي :
فاقد چكيده فارسي
چكيده لاتين :
In this paper, four linear low density polyethylenes were subjected to multiple extrusion processes for 20 times. Then Yellowness Index (YI) were evaluated as a function of the number of extrusion cycles. Using the X-ray fluorescence (XRF), the residual catalyst levels was determined in these samples. The highest YI value was observed for samples LL-1 and LL-2. Also, the lowest YI value was obtained for sample LL-3. The YI value for the sample LL-3 has been approximately constant after 3 times the extrusion. Furthermore, the XRF results showed that Residual Catalyst (aluminium, magnesium and titanium) Levels in samples LL-1 and LL-2 were more than LL-3. Therefore, it can be concluded that high residual catalyst level is one of the reasons for the high value of the Yellowness Index.
