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Rheological properties, shrinkage and melt spinning instability of blends of linear polyolefins with low density polyethylene
Author(s) -
Santamaria Anton,
White James L.
Publication year - 1986
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1986.070310119
Subject(s) - low density polyethylene , materials science , high density polyethylene , rheology , polyethylene , polypropylene , polybutene , composite material , shrinkage , linear low density polyethylene , melt spinning , spinning , melt flow index , polymer , copolymer
A comparative study is presented of the influence of addition of a long chain branched low density polyethylene LDPE on the rheological and processing characteristics of a high density polyethylene (HDPE), a polypropylene (PP), and a polybutene‐1 (PB). The influence of the LDPE on the PP and PB are most striking. Substantial increases in normal stresses, “shrinkage” of extruded filaments, and melt spinning stability are observed. The effects are much smaller for the HDPE blends.