Experimental analysis of the kneading disk region in a co-rotating twin screw extruder: Part 2. glass-fiber degradation during compounding
✍ Scribed by Y. Shimizu; S. Arai; T. Itoyama; H. Kawamoto
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 269 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0730-6679
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✦ Synopsis
The fiber degradation in the kneading disk region of a corotating twin screw extruder was studied with a closed single-stage co-rotating twin screw extruder as a model for the analysis. In a previous article, we reported that the stress in the kneading zone was proportional to the screw torque. In the present study, we measured the fiber-length distributions and the average fiber lengths under various compounding conditions. It was found that the fiber-length distributions depend upon the shear stress and the total number of rotations and that the fiber-length distributions were identical if the average fiber lengths were the same.