同方向回転二軸混練機のニーディングディスク部の実験解析第1報 ニーディングディスク部の流動特性
Experimental Analysis of the Kneading Disk Region in a Co-rotating Twin Screw Extruder Part 1 Flow Property of the Kneading Disk Region
清水 恭・荒井貞夫・糸山武秀・川本英貴
Shimizu, Yasushi / Arai, Sadao / Itoyama, Takehide / Kawamoto, Hideki
Co-rotating twin screw extruders are extensively used in polymer compounding. In co-rotating twin screw extruders, the kneading disk region is the most influential for compounding efficiency. However, only a few studies have so far been made in the flow analysis in the kneading disk region, because this flow is too complicated. In this paper the flow in the kneading disk region was studied with a closed co-rotating twin screw single stage mixer made for the purpose of the model analysis. We measured the torque, the pressure and the resin temperature with polypropylene under various compounding conditions. Consequently, it was found that the flow property measured by this experiment was equal to the flow property measured by a Capillary Rheometer.
Key words: Co-rotating intermeshing twin screw extruder / Kneading disk / Torque