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Rheological properties of multicomponent polymer systems undergoing melting or softening during compounding
Author(s) -
Shih C.K.,
Tynan D. G.,
Denelsbeck D. A.
Publication year - 1991
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.760312307
Subject(s) - materials science , rheology , softening , compounding , composite material , amorphous solid , polymer , softening point , mixing (physics) , phase (matter) , organic chemistry , chemistry , physics , quantum mechanics
The rheological characteristics of a number of polymer blends, including amorphous and semi‐crystalline plastic matrices, during melting or softening, are analyzed with a batch mixer. The physical changes accompanying the phase transitions taking place as the slat‐and‐pepper blends are heated and mixed in the region of their component melt transition temperatures are monitored visually through a transparent window with video recordings. The torque of mixing and the mixture temperature are also recorded continuously. The strong effects of additives such as filler or lower melting resin as well as rotor speed, degree of fill, and ram pressure were observed.