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Effects of eccentricity, temperature, velocity, and polymer properties on solids compressibility in vane extruder
Author(s) -
Qu JinPing,
Xu YiShe,
Chen JiaJia,
Zhang GuiZhen,
Zhang Ning
Publication year - 2014
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.23679
Subject(s) - materials science , compressibility , compaction , plastics extrusion , polymer , extrusion , composite material , eccentricity (behavior) , rotor (electric) , mechanics , thermodynamics , mechanical engineering , physics , engineering , political science , law
An experimental instrument is developed with a purpose to study solids compaction behaviors in vane extruder in a direct manner. The effects of eccentricity, temperature, velocity, and polymer properties on the compressibility of polymer solids are reported in terms of compaction coefficient as a function of rotor torque. The results show that a relatively larger eccentricity or a lower external temperature can bring a smaller compaction coefficient, which results in higher pressure in the solids conveying zone of the vane extruder. However, rotor velocities almost have no influence on the compaction coefficient under the same condition. In addition, a difference is observed between the effects of the semicrystalline polymers and the noncrystalline polymers on the compaction coefficient, which should be taken into consideration in vane extrusion processing operations. POLYM. ENG. SCI., 54:1403–1411, 2014. © 2013 Society of Plastics Engineers