شماره ركورد كنفرانس :
4619
عنوان مقاله :
Effect of Residual Catalyst Levels on Polyethylene Degradation Behavior
پديدآورندگان :
Dordinejad-Kor Abdolkamal a.dordinejad@jpcomplex.com Research and Development Center, Jam Petrochemical Company, Asalouyeh, Iran , Rashedi Reza Research and Development Center, Jam Petrochemical Company, Asalouyeh, Iran , Sepahi Abdolhannan Research and Development Center, Jam Petrochemical Company, Asalouyeh, Iran
كليدواژه :
Polyethylene , Residual Catalyst , Yellowness Index , Extrusion
عنوان كنفرانس :
دومين كنفرانس بين المللي دو سالانه نفت، گاز و پتروشيمي
چكيده فارسي :
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 were determined in these samples. The highest YI value was observed for samples LL-518N. Also, the lowest YI value was obtained for sample LL-209. The YI value for the sample LL-209 has been approximately constant after 3 times the extrusion. Furthermore, the XRF results showed that Residual Catalyst (aluminium, magnesium and titanium) Level in samples LL-518N was more than LL-209. Therefore, it can be concluded that high residual catalyst level is one of the reasons for the high value of the Yellowness Index
