Rheological properties of wood polymer composites at high shear rates-Evaluation of additional pressure losses as a result of inlet effects

被引：14
作者：
Lewandowski, Krzysztof [1 ]
Piszczek, Kazimierz [1 ]
Skorczewska, Katarzyna [1 ]
Mirowski, Jacek [1 ]
Zajchowski, Stanislaw [1 ]
Wilczewski, Slawomir [1 ]
机构：
[1] Bydgoszcz Univ Sci & Technol, Fac Chem Technol & Engn, Seminaryjna 3, PL-85326 Bydgoszcz, Poland
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2022年 / 154卷
关键词：
A Polymer-matrix composites (PMCs); A Wood fibres; D Rheology; E Injection moulding; MECHANICAL-PROPERTIES; BAGLEY CORRECTION; MELT; VISCOSITY; FLOW; EXTRUSION; BEHAVIOR; SIZE;
D O I：
10.1016/j.compositesa.2022.106804
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The study presents the results of rheological tests of wood polymer composites (WPC) on a polypropylene matrix. The influence of the filler on the additional pressure losses as a result of entrance effects has been analysed. The tests were carried out with the use of a capillary rheometer and a rheological head at the values of apparent share rate up to 101 860 s-1. The influence of the Bagley corrections on the apparent viscosity curve defined for the tested composites was determined. In the case of rheological tests at low shear rates, omit the additional pressure losses does not significantly affect the determined rheological properties. It was observed that with the increase of the filler content and shearing rate, the value of pressure losses significantly increases. It is necessary to consider the values of pressure losses in rheological measurements of rheological properties of WPC with the use of capillary rheometers.
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页数：10
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