Haake rheocord torque rheometer

The next example is of a Pre-Startup Review or a Process Hazards Audit held on a piece of purchased processing equipment, a Haake Rheocord Torque Rheometer and Laboratory Twin-screw Extruder. The organization responsible for this extruder has a standard checklist of eleven pages of items to be considered by the technical person or persons in charge of the equipment or process, before the review is held. Copies of the completed checklist are then sent to each committee member before the meeting for review. Generally, in a review of this type, the group will convene at the location of the equipment rather than in a conference room to go over the material provided. In this case, the committee consisted of ... 

Mechanical Properties of Native and Chemically-Modified Zein Mechanical strength measurement was performed to evaluate the bulk properties of the tensile bars from both native and chemically-modified zeins. Triediylene glycol (TEG) is an excellent plasticizer (12) for zein. Native and chemically modified zeins were each blended with either 10 or 1S% TEG in a Haake Rheocord 90 torque rheometer equipped with high shear roller blades to yield a taffy like matrix. The rheometer was stopped when the torque dropped and became constant. 

Preparation of Tensile Bars by Compression Molding As stated in Discussion of Result section blends of TEG with either native or chemically modified zein were prepared with a Haake Rheocord 90 torque rheometer. The taffy like matrix were zen with liquid nitrogen and ground in a Wiley mill. The powder was molded into tensile bars with a Carver Press, Model C at... 

Swelltest die heads also allow contactless estimation of die-swell to be obtained. A Planetarimixing head also allows the study of powdery materials (again useful in PVC processing). Temperatures up to 300°C can be studied. Current equipment of this type is produced by Brabender ( Plasticorder ), Haake ( Rheocord ) and Hampden Instruments (variable torque rheometer). 

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