The effects of screw configuration on the screw fill degree and special mechanical energy in twin-screw extruder for high-moisture texturised defatted soybean meal

2015 ◽  
Vol 157 ◽  
pp. 77-83 ◽  
Author(s):  
Bo Zhang ◽  
Yingquan Zhang ◽  
Jens Dreisoerner ◽  
Yimin Wei
Keyword(s):  
Soybean Meal ◽  
Mechanical Energy ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
High Moisture ◽  
Defatted Soybean Meal ◽  
Twin Screw

Properties of EPDM/PP thermoplastic vulcanizates produced by an intermeshing-type internal mixer comparing with a co-rotating twin-screw extruder

2019 ◽  
Vol 39 (2) ◽  
pp. 143-151
Author(s):  
Wattana Teppinta ◽  
Banja Junhasavasdikul ◽  
Nattapong Nithi-Uthai
Keyword(s):  
Shear Rate ◽  
Elastic Recovery ◽  
Mechanical Energy ◽  
Cross Linking ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Lower Shear ◽  
Twin Screw ◽  
Lower Shear Rate ◽  
Internal Mixer

Abstract A unique technology for producing thermoplastic vulcanizate (TPV) has been developed using an intermeshing-type internal mixer (ITM). TPV produced by the ITM was compared with that produced using a co-rotating twin screw extruder (Co-TSE) to assess the former’s commercial possibilities. TPV, originating from ethylene-propylene-diene monomer (EPDM) and polypropylene (PP), was produced by both machines with equal filled volumes, same shear rate, and same specific mechanical energy. Results indicate that ITMs can be used to produce TPV with mechanical properties comparable to those of TPV produced by Co-TSE. TPV can be produced with a lower shear rate with ITM compared to Co-TSE. A long residence time can be maintained in the mixing chamber of the ITM, allowing high conversion of the cross-linking reaction and resulting in better elastic recovery properties due to the higher cross-linking density. However, this resulted in higher viscosity of TPV produced by ITM.

Waxy flour degradation – Impact of screw geometry and specific mechanical energy in a co-rotating twin screw extruder

2018 ◽  
Vol 239 ◽  
pp. 688-696 ◽  
Author(s):  
Ryan J. Kowalski ◽  
Jacob P. Hause ◽  
Helen Joyner (Melito) ◽  
Girish M. Ganjyal
Keyword(s):  
Mechanical Energy ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Twin Screw ◽  
Specific Mechanical Energy

Reactive Blending in a Twin Screw Extruder

1996 ◽  
Vol 11 (2) ◽  
pp. 139-146 ◽  
Author(s):  
A. De Loor ◽  
P. Cassagnau ◽  
A. Michel ◽  
L. Delamare ◽  
B. Vergnes
Keyword(s):  
Twin Screw Extruder ◽  
Reactive Blending ◽  
Screw Extruder ◽  
Twin Screw
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