| Visco-elasticity of PP/EPDM/glass bead composite in extrusion flow |
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| DOI： |
| Key Words: PP；EPDM；glass bead；composite；extrusion flow；visco-elasticity |
| Author Name | Affiliation | | LIANG Ji-zhao | South China University of Technology |
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| Abstract: |
| The visco-elasticity of PP/EPDM/glass bead composite in extrusion flow at 190 ℃ was investigated by a speed-constant capillary rheometer.The results showed that the entry pressure drop (ΔPe) increased with the increase of shear stress on flow channel wall (τw) and the tensile viscosity increased with the increase of ΔPe，the die swell ratio (B) increased with the increase of τw and decreased with the increase of glass bead content；and in a certain range of glass bead contents，the values B of maleic anhydride-grafted EPDM/silane-modified glass bead composites were higher. |
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