Brown, C S; Allen, C R G; Rides, M; Sharma, L; Spitteler, P (2000) In-process monitoring of the flow properties of polymers for extrusion, compounding and injection moulding. NPL Report. CMMT(A)260

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Abstract

Two methods of monitoring the flow properties of polymers during processing have been demonstrated. In the first method, a Porpoise Viscometers on-line rheometer was used to monitor extrusion, compounding and film blowing during production. A range of benefits was identified that could not realistically have been met through off-line measurements. As a result, one company has purchased two on-line rheometers and seen a return on the investment in three months; other companies have plans to invest in the technology. In the second method, the injection moulding process was monitored through use of an instrumented nozzle and software that calculated viscosity and automatically identified different parts of the moulding cycle.

Item Type:	Report/Guide (NPL Report)
NPL Report No.:	CMMT(A)260
Subjects:	Advanced Materials Advanced Materials > Polymer Rheology
Last Modified:	02 Feb 2018 13:17
URI:	http://eprintspublications.npl.co.uk/id/eprint/1618

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