Authors
Tayyab Hameed, Ibnelwaleed A Hussein
Publication date
2002/1/1
Journal
Polymer
Volume
43
Issue
25
Pages
6911-6929
Publisher
Elsevier
Description
The influences of molecular weight and m-LLDPE comonomer type on the miscibility of m-LLDPE with LDPE in the melt state were investigated with rheological methods. Dynamic, steady shear and transient measurements were carried out in an ARES rheometer at 190°C. The Mw of the shortly branched m-LLDPE has influenced its miscibility with LDPE and immiscibility has increased with the increase in Mw of m-LLDPE. The miscibility of the high-Mw m-LLDPE with LDPE was non-symmetric with respect to composition as revealed by the dependence of their η0, η′(ω), G′, N 1( γ ̇ ), and N1(t) on blend composition. Addition of a small amount of the hexene m-LLDPE to LDPE was more likely to cause immiscibility than the addition of a small amount of LDPE to m-LLDPE. Increasing the m-LLDPE branch length (comonomer) from butene to hexene did not influence the miscibility of m-LLDPE/LDPE blends …
Total citations
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