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Analysis of titanium dioxide agglomerate dispersion in linear low density polyethylene and resulting properties of compounds
Author(s) -
Lee YoungJin,
ManasZloczower Ica,
Feke Donald L.
Publication year - 1995
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760351212
Subject(s) - agglomerate , materials science , linear low density polyethylene , titanium dioxide , dispersion (optics) , composite material , polyethylene , ultimate tensile strength , siloxane , low density polyethylene , chemical engineering , polymer , optics , physics , engineering
The dispersion of titanium dioxide agglomerates within linear low density polyethylene (LLDPE) melts has been investigated by using a cone‐and‐plate device installed within a temperature controlled oven. Observation of fragment evolution indicates that erosion is the predominant mechanism of dispersion. The erosion rate of titanium dioxide agglomerates in LLDPE was consistenty with the results obtained in previous dispersion studies of titanium dioxide in polydimethyl siloxane (PDMS). The effect of agglomerate dispersion on the optical, tensile, and dynamic mechanical properties of compounds incorporating titanium dioxide was also investigated. Changes in compound properties were correlated with observed morphology changes of agglomerates in order to clarify the effect of dispersion.