Monitoring the Degree of Conversion of Cyclic Butylene Terephthalate using Dielectric Analysis

E Archer, AT McIlhagger, R McIlhagger, JP Quinn, P Mallon, CO Bradaigh

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Dielectric analysis (DEA) is the most common technique used to determine the state of cure in-process for many thermosetting resins systems such as epoxies, polyesters, polyurethanes, polyimides, silicones, bismaleimides, and phenolics. The objective of this work is to investigate the processing characteristics of cyclic butylene terephthalate (CBT) (supplied by Cyclics Corporation) which polymerises to form a thermoplastic, polybutylene terephthalate (PBT). This paper reports on the interim results of ongoing experimental investigations in which DEA is used to correlate the process cycle to composite structural features and mechanical performance of a complex composite part. Through adjustments in process cycle, the significant processing parameters have been identified which optimise the production of thermoplastic PBT composite parts. The recorded ion viscosity is used to indicate change in material viscosity, conversion rate and process time. These results have been analysed and presented as a guide for correct process control.
LanguageEnglish
Pages365-373
JournalPOLYMERS & POLYMER COMPOSITES
Volume16
Issue number6
Publication statusPublished - 2008

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Thermoplastics
Monitoring
Composite materials
Viscosity
Thermosets
Processing
Polyimides
Silicones
Polyurethanes
Process control
Polyesters
Ions
Industry

Keywords

  • Thermoplastic resin
  • Process monitoring
  • Dielectric analysis.

Cite this

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abstract = "Dielectric analysis (DEA) is the most common technique used to determine the state of cure in-process for many thermosetting resins systems such as epoxies, polyesters, polyurethanes, polyimides, silicones, bismaleimides, and phenolics. The objective of this work is to investigate the processing characteristics of cyclic butylene terephthalate (CBT) (supplied by Cyclics Corporation) which polymerises to form a thermoplastic, polybutylene terephthalate (PBT). This paper reports on the interim results of ongoing experimental investigations in which DEA is used to correlate the process cycle to composite structural features and mechanical performance of a complex composite part. Through adjustments in process cycle, the significant processing parameters have been identified which optimise the production of thermoplastic PBT composite parts. The recorded ion viscosity is used to indicate change in material viscosity, conversion rate and process time. These results have been analysed and presented as a guide for correct process control.",
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Monitoring the Degree of Conversion of Cyclic Butylene Terephthalate using Dielectric Analysis. / Archer, E; McIlhagger, AT; McIlhagger, R; Quinn, JP; Mallon, P; Bradaigh, CO.

Vol. 16, No. 6, 2008, p. 365-373.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Monitoring the Degree of Conversion of Cyclic Butylene Terephthalate using Dielectric Analysis

AU - Archer, E

AU - McIlhagger, AT

AU - McIlhagger, R

AU - Quinn, JP

AU - Mallon, P

AU - Bradaigh, CO

PY - 2008

Y1 - 2008

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AB - Dielectric analysis (DEA) is the most common technique used to determine the state of cure in-process for many thermosetting resins systems such as epoxies, polyesters, polyurethanes, polyimides, silicones, bismaleimides, and phenolics. The objective of this work is to investigate the processing characteristics of cyclic butylene terephthalate (CBT) (supplied by Cyclics Corporation) which polymerises to form a thermoplastic, polybutylene terephthalate (PBT). This paper reports on the interim results of ongoing experimental investigations in which DEA is used to correlate the process cycle to composite structural features and mechanical performance of a complex composite part. Through adjustments in process cycle, the significant processing parameters have been identified which optimise the production of thermoplastic PBT composite parts. The recorded ion viscosity is used to indicate change in material viscosity, conversion rate and process time. These results have been analysed and presented as a guide for correct process control.

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M3 - Article

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