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Influence of Composition Distribution and Branch Content on the Miscibility of m-LLDPE and HDPE Blends: Rheological Investigation †
| Content Provider | Semantic Scholar |
|---|---|
| Author | Hussein, Ibnelwaleed A. |
| Copyright Year | 2003 |
| Abstract | The miscibility of metallocene linear low-density polyethylene (m-LLDPE) and Ziegler−Natta LLDPE (ZN-LLDPE) with linear high-density polyethylene (HDPE) was studied. The influences of composition distribution (CD) and branch content (BC) on the miscibility of m-LLDPE and ZN-LLDPE with HDPE were investigated with rheological methods. The m-LLDPEs (BC = 13.2 CH3/1000 C) and ZN-LLDPE (BC = 14.5 CH3/1000 C) of similar molecular weights were paired to study one molecular variable at a time. Melt blending was carried out in a Haake PolyDrive at 190 °C in the presence of 1000 ppm of antioxidants. Dynamic and steady shear measurements were performed in a Rheometrics ARES at 190 °C. The miscibilities of blends were revealed by the dependence of their ηo, η‘, N1 and G‘ on blend composition and from predictions of rheological models. The CD was found to have no effect on the miscibility of low-BC ZN-LLDPE and m-LLDPE blends with linear HDPE, and both blends were miscible at all compositions. Increasing the branch co... |
| Starting Page | 2024 |
| Ending Page | 2031 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1021/ma0257245 |
| Volume Number | 36 |
| Alternate Webpage(s) | http://faculty.kfupm.edu.sa/che/ihussein/ma2003v36.pdf |
| Alternate Webpage(s) | https://doi.org/10.1021/ma0257245 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
