Development of kinetics sub-model of cyanate ester-based prepregs for autoclave molding process simulation

Autoclave molding of prepregs is an established fabrication method to produce composite components to be used in the aerospace industry and elsewhere. The process involves the excess resin to flow out and curing of the resin. The process model simulation, which is very effective to optimize the proc...

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Main Authors: Maji Prosenjit, Neogi Swati
Format: Article
Language:English
Published: De Gruyter 2018-08-01
Series:High Temperature Materials and Processes
Subjects:
Online Access:https://doi.org/10.1515/htmp-2017-0039
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author Maji Prosenjit
Neogi Swati
author_facet Maji Prosenjit
Neogi Swati
author_sort Maji Prosenjit
collection DOAJ
description Autoclave molding of prepregs is an established fabrication method to produce composite components to be used in the aerospace industry and elsewhere. The process involves the excess resin to flow out and curing of the resin. The process model simulation, which is very effective to optimize the process parameters and laminate properties, requires various sub-models to account for resin flow and resin curing. This work focuses on the curing behavior and development of kinetic sub-model of a quartz fabric prepreg impregnated with cyanate ester-based resin. Differential scanning calorimetry (DSC) in both dynamic and isothermal modes has been used for the study. The dynamic study reveals that two distinct reaction mechanisms were involved during curing. The dynamic study data is used to obtain the activation energy using model-free iso-conversional method. The kinetic expression obtained using the isothermal DSC scan data is able to predict the complexity of the overall reaction which can be described by nth-order reaction kinetics for the initial phase of reaction followed by the autocatalytic reaction kinetics.
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spelling doaj.art-f07722be1e3142bb85c64612506d2f752022-12-21T22:28:46ZengDe GruyterHigh Temperature Materials and Processes0334-64552191-03242018-08-0137876977610.1515/htmp-2017-0039Development of kinetics sub-model of cyanate ester-based prepregs for autoclave molding process simulationMaji Prosenjit0Neogi Swati1Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur721302, IndiaDepartment of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur721302, IndiaAutoclave molding of prepregs is an established fabrication method to produce composite components to be used in the aerospace industry and elsewhere. The process involves the excess resin to flow out and curing of the resin. The process model simulation, which is very effective to optimize the process parameters and laminate properties, requires various sub-models to account for resin flow and resin curing. This work focuses on the curing behavior and development of kinetic sub-model of a quartz fabric prepreg impregnated with cyanate ester-based resin. Differential scanning calorimetry (DSC) in both dynamic and isothermal modes has been used for the study. The dynamic study reveals that two distinct reaction mechanisms were involved during curing. The dynamic study data is used to obtain the activation energy using model-free iso-conversional method. The kinetic expression obtained using the isothermal DSC scan data is able to predict the complexity of the overall reaction which can be described by nth-order reaction kinetics for the initial phase of reaction followed by the autocatalytic reaction kinetics.https://doi.org/10.1515/htmp-2017-0039composite materialsautoclave moldingcyanate ester-based prepregcure kineticsactivation energydifferential scanning calorimetry
spellingShingle Maji Prosenjit
Neogi Swati
Development of kinetics sub-model of cyanate ester-based prepregs for autoclave molding process simulation
High Temperature Materials and Processes
composite materials
autoclave molding
cyanate ester-based prepreg
cure kinetics
activation energy
differential scanning calorimetry
title Development of kinetics sub-model of cyanate ester-based prepregs for autoclave molding process simulation
title_full Development of kinetics sub-model of cyanate ester-based prepregs for autoclave molding process simulation
title_fullStr Development of kinetics sub-model of cyanate ester-based prepregs for autoclave molding process simulation
title_full_unstemmed Development of kinetics sub-model of cyanate ester-based prepregs for autoclave molding process simulation
title_short Development of kinetics sub-model of cyanate ester-based prepregs for autoclave molding process simulation
title_sort development of kinetics sub model of cyanate ester based prepregs for autoclave molding process simulation
topic composite materials
autoclave molding
cyanate ester-based prepreg
cure kinetics
activation energy
differential scanning calorimetry
url https://doi.org/10.1515/htmp-2017-0039
work_keys_str_mv AT majiprosenjit developmentofkineticssubmodelofcyanateesterbasedprepregsforautoclavemoldingprocesssimulation
AT neogiswati developmentofkineticssubmodelofcyanateesterbasedprepregsforautoclavemoldingprocesssimulation