Premium
Poly(butyleneterephthalate)‐poly(ethylene‐co‐vinylacetate) polymer blends. Part II
Author(s) -
Pilati Francesco,
Pezzin Giovanni
Publication year - 1984
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.760240815
Subject(s) - materials science , micrograph , agitator , polymer , adhesion , polymer chemistry , composite material , ethylene , ethylene glycol , polymer science , chemical engineering , scanning electron microscope , chemistry , organic chemistry , catalysis , viscosity , engineering
The more distinctive morphological features which appear in the micrographs of fracture surfaces of polymer blends of poly(butyleneterephthalate)(PBTP) with poly(ethylene‐covinylacetate) (EVA), obtained by polymerizing in different conditions dimethylterephthalate (DMT) and 1,4‐butanediol (4G) in the presence of EVA (with 4 percent w/w of vinylacetate, VA,), are shown and discussed. The micrograph investigation clearly points out that the adhesion between EVA particles and PBTP matrix increases with the extent of reaction between PBTP and EVA and, for the same time of reaction, by changing from an anchor to a paddle agitator. The mean diameter of the particles is also affected by time of reaction and by the geometry of the agitator, decreasing when the adhesion increases.