Abstract
The influence of relative molecular mass (MM) of LLDPE on the rheological, thermal and mechanical properties of two sets of m-LLDPE/HDPE blends of low and high branch content (BC) was studied. Blends of m-LLDPE with linear HDPE reveal no influence of MM (60-100 kg/mol) on melt miscibility at low BC (about 20 branches/1 000 C). However, at high BC levels (about 40 branches/1 000 C), MM affects the melt miscibility of m-LLDPE/HDPE blends. The DSC results suggest that compatibility in the solid state is independent of MM and BC. For all blends studied, the HDPE-rich blends are found to contain single crystal populations, suggesting high degree of cocrystallization, whereas, m-LLDPE rich phase shows separate crystallization. Mechanical properties of these blends are found to be a strong function of blend compatibility and the specific properties of the blend components. In general, the high BC pairs show poor mechanical properties.
| Original language | English |
|---|---|
| Pages (from-to) | 183-187 |
| Number of pages | 5 |
| Journal | Journal of Central South University of Technology (English Edition) |
| Volume | 14 |
| Issue number | 1 SUPPL. |
| DOIs | |
| State | Published - Feb 2007 |
Bibliographical note
Funding Information:The authors wish to acknowledge KFUPM for the financial support.
Keywords
- Metallocene LLDPE
- Miscibility
- Molecular mass
- Rheological property
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering