Abstract
A new approach to determining the molecular
weight distribution of metallocene (mPE) and
conventional polyethylenes using a single capillary
rheometer technique is reported here. The melt flow
properties of a range of 17 mLLDPEs and 4
conventional LLDPEs with different MFIs, densities
and co-monomer types (butene, hexene, octene), from
six different suppliers were investigated using this
technique. The results show a direct correlation between
melt flow rate ratio and molecular weight distribution
(MWD,) measured by Gel Permeation
Chromatography: MWD = ( 34.2 × MFRR) − 14.5 . A
direct correlation between weight average molecular
weight (Mw) and melt flow index for the resins was also
determined
weight distribution of metallocene (mPE) and
conventional polyethylenes using a single capillary
rheometer technique is reported here. The melt flow
properties of a range of 17 mLLDPEs and 4
conventional LLDPEs with different MFIs, densities
and co-monomer types (butene, hexene, octene), from
six different suppliers were investigated using this
technique. The results show a direct correlation between
melt flow rate ratio and molecular weight distribution
(MWD,) measured by Gel Permeation
Chromatography: MWD = ( 34.2 × MFRR) − 14.5 . A
direct correlation between weight average molecular
weight (Mw) and melt flow index for the resins was also
determined
Original language | English |
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Pages | 1051-1055 |
Number of pages | 5 |
Publication status | Published - May 2002 |
Event | Annual Technical Conference of the Society of Plastics Engineers - USA, San Francisco, United States Duration: 05 May 2002 → 09 Oct 2020 |
Conference
Conference | Annual Technical Conference of the Society of Plastics Engineers |
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Country | United States |
City | San Francisco |
Period | 05/05/2002 → 09/10/2020 |
Keywords
- Rheology
- metallocene polyethylene
- Molecular weight distribution