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Titolo:
IN-PROCESS MEASUREMENTS FOR MONITORING AND CONTROL OF GELATION LEVELSIN UPVC COMPOUNDING
Autore:
COATES PD; ROSE RM; WILKINSON B;
Indirizzi:
UNIV BRADFORD,IRC POLYMER SCI & TECHNOL BRADFORD BD7 1DP W YORKSHIRE ENGLAND HYDRO POLYMERS LTD,DIV VINYLS NEWTON AYCLIFFE ENGLAND
Titolo Testata:
Plastics, rubber and composites processing and applications
fascicolo: 5, volume: 23, anno: 1995,
pagine: 295 - 303
SICI:
0959-8111(1995)23:5<295:IMFMAC>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
10
Recensione:
Indirizzi per estratti:
Citazione:
P.D. Coates et al., "IN-PROCESS MEASUREMENTS FOR MONITORING AND CONTROL OF GELATION LEVELSIN UPVC COMPOUNDING", Plastics, rubber and composites processing and applications, 23(5), 1995, pp. 295-303

Abstract

The rheology of carefully prepared commercial unplasticised poly vinyl chloride (UPVC) formulation has been studied under actual process history using an in-line rheometer die and a computer monitored single screw extruder, and the results compared with those observed for off-line characterisations of gelation levels in the unplasticised PVC. It is observed that the in-process results are capable of being used to predict accurately the gelation level of the product, expressed as 'grades'. Steady state and dynamic responses of the processing line were also studied using similar in-line measurements, which has led to an algorithm for real time closed loop control of gelation based upon melt temperature and melt pressure in the die and extruder screw speed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 02:28:16