Fast cure of stable semi-pregs via VBO cure

To address the need for increased efficiency in high performance composite processing, a vacuum bag only (VBO) semi-preg was designed, modeled, and evaluated. The semi-preg featured a vinyl hybrid resin formulated for rapid cure. A model was developed to describe the kinetic behavior of the resin, a...

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Autores principales:	David B. Bender, Timotei Centea, Steven Nutt
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2020
Materias:	semi-prepreg composites out-of-autoclave fast cure model reaction inhibition incomplete curing Polymers and polymer manufacture TP1080-1185 Automation T59.5
Acceso en línea:	https://doaj.org/article/557e48e2c6684367b55d87e2d8aa3c69
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spelling	oai:doaj.org-article:557e48e2c6684367b55d87e2d8aa3c692021-12-02T13:34:25ZFast cure of stable semi-pregs via VBO cure2055-035910.1080/20550340.2020.1869891https://doaj.org/article/557e48e2c6684367b55d87e2d8aa3c692020-12-01T00:00:00Zhttp://dx.doi.org/10.1080/20550340.2020.1869891https://doaj.org/toc/2055-0359To address the need for increased efficiency in high performance composite processing, a vacuum bag only (VBO) semi-preg was designed, modeled, and evaluated. The semi-preg featured a vinyl hybrid resin formulated for rapid cure. A model was developed to describe the kinetic behavior of the resin, and then was employed to guide the design of efficient cure cycles. The semi-preg featured a discontinuous distribution of resin on the fiber bed. The format imparted high through-thickness air permeability by virtue of the multitude of air evacuation pathways with short breath-out distances relative to conventional out-of-autoclave prepregs (OoA). The kinetic model was used to create a test matrix of panels from the semi-pregs. Microstructural quality, interlaminar shear strength, and glass transition temperature were compared to a control panel with a longer, conventional cure cycle. The results demonstrated that fast-cure resins can be used in conjunction with cure modeling and semi-preg formats to design appropriate VBO cure cycles that consistently yield parts with low defect contents without autoclaves.David B. BenderTimotei CenteaSteven NuttTaylor & Francis Grouparticlesemi-prepreg compositesout-of-autoclavefast cure modelreaction inhibitionincomplete curingPolymers and polymer manufactureTP1080-1185AutomationT59.5ENAdvanced Manufacturing: Polymer & Composites Science, Vol 0, Iss 0, Pp 1-11 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	semi-prepreg composites out-of-autoclave fast cure model reaction inhibition incomplete curing Polymers and polymer manufacture TP1080-1185 Automation T59.5
spellingShingle	semi-prepreg composites out-of-autoclave fast cure model reaction inhibition incomplete curing Polymers and polymer manufacture TP1080-1185 Automation T59.5 David B. Bender Timotei Centea Steven Nutt Fast cure of stable semi-pregs via VBO cure
description	To address the need for increased efficiency in high performance composite processing, a vacuum bag only (VBO) semi-preg was designed, modeled, and evaluated. The semi-preg featured a vinyl hybrid resin formulated for rapid cure. A model was developed to describe the kinetic behavior of the resin, and then was employed to guide the design of efficient cure cycles. The semi-preg featured a discontinuous distribution of resin on the fiber bed. The format imparted high through-thickness air permeability by virtue of the multitude of air evacuation pathways with short breath-out distances relative to conventional out-of-autoclave prepregs (OoA). The kinetic model was used to create a test matrix of panels from the semi-pregs. Microstructural quality, interlaminar shear strength, and glass transition temperature were compared to a control panel with a longer, conventional cure cycle. The results demonstrated that fast-cure resins can be used in conjunction with cure modeling and semi-preg formats to design appropriate VBO cure cycles that consistently yield parts with low defect contents without autoclaves.
format	article
author	David B. Bender Timotei Centea Steven Nutt
author_facet	David B. Bender Timotei Centea Steven Nutt
author_sort	David B. Bender
title	Fast cure of stable semi-pregs via VBO cure
title_short	Fast cure of stable semi-pregs via VBO cure
title_full	Fast cure of stable semi-pregs via VBO cure
title_fullStr	Fast cure of stable semi-pregs via VBO cure
title_full_unstemmed	Fast cure of stable semi-pregs via VBO cure
title_sort	fast cure of stable semi-pregs via vbo cure
publisher	Taylor & Francis Group
publishDate	2020
url	https://doaj.org/article/557e48e2c6684367b55d87e2d8aa3c69
work_keys_str_mv	AT davidbbender fastcureofstablesemipregsviavbocure AT timoteicentea fastcureofstablesemipregsviavbocure AT stevennutt fastcureofstablesemipregsviavbocure
_version_	1718392794100269056

Fast cure of stable semi-pregs via VBO cure

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