Experimental study on the optimization of the autoclave curing cycle for the enhancement of the mechanical properties of prepreg carbon-epoxy laminates

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F24%3A63575859" target="_blank" >RIV/70883521:28110/24:63575859 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2073-4360/16/1/47" target="_blank" >https://www.mdpi.com/2073-4360/16/1/47</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/polym16010047" target="_blank" >10.3390/polym16010047</a>

Result language

angličtina

Original language name

Experimental study on the optimization of the autoclave curing cycle for the enhancement of the mechanical properties of prepreg carbon-epoxy laminates

Original language description

In this study, the influence of the technological parameters of autoclave curing on the resulting mechanical properties of laminates was investigated. The main criterion for optimizing the curing was to extend the processing window with a lower prepreg viscosity. At the same time, the issue of setting the pressure level before the heat ramp to the final cure temperature was also addressed. An experimental method of measuring the indentation viscosity of the prepreg was used to determine the viscosity profile. Despite the experimental nature of the method, the reliability of this method for rapid approximate identification of the processing window of the prepreg was verified by the results of the study. Several laminates with the same ply orientation were produced using the selected cure cycles, from which test specimens were cut with a water jet and inspected by confocal microscopy. The mechanical properties of tension and flexure were measured within the individual curing cycles using tests according to ISO standards. The data reported demonstrate that the experimental method of optimizing the curing parameters has successfully increased the selected mechanical properties. The resulting mechanical properties of the laminates were enhanced by up to 20% compared to the non-optimized cure cycle. The influence of the type of cure cycle on the resulting thickness of the cured laminate was evaluated in this study.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Polymers

ISSN

2073-4360

e-ISSN

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Volume of the periodical

16

Issue of the periodical within the volume

1

Country of publishing house

CH - SWITZERLAND

Number of pages

19

Pages from-to

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UT code for WoS article

001140391300001

EID of the result in the Scopus database

2-s2.0-85181852432