Manufacturing and Analysis of Overmolded Hybrid Fiber Polyamide 6 Composite

Currently, fiber-reinforced thermoplastic composites are widely applied in structural applications. It has great potential to replace metal structures and provides advantages in weight reduction. In this study, the pretensioned unidirectional carbon fiber was overmolded by Polyamide 6 contained 30%w...

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Autores principales:	Heru S. B. Rochardjo, Cahyo Budiyantoro
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	polyamide 6 hybrid fiber overmolding cryogenic treatment Box–Behnken design flexural strength Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/6def697ca7b340d4a97ed103290ed050
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spelling	oai:doaj.org-article:6def697ca7b340d4a97ed103290ed0502021-11-11T18:48:12ZManufacturing and Analysis of Overmolded Hybrid Fiber Polyamide 6 Composite10.3390/polym132138202073-4360https://doaj.org/article/6def697ca7b340d4a97ed103290ed0502021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3820https://doaj.org/toc/2073-4360Currently, fiber-reinforced thermoplastic composites are widely applied in structural applications. It has great potential to replace metal structures and provides advantages in weight reduction. In this study, the pretensioned unidirectional carbon fiber was overmolded by Polyamide 6 contained 30%wt of glass fibers (PA 6-30GF). Process parameters such as injection pressure, melting temperature, duration of carbon fiber cryogenic treatment, and fiber pretension were optimized to maximize the flexural strength, impact strength, and interlaminar properties of the hybrid composite. The relationship between factors and responses was analyzed using Box–Behnken design (BBD) from response surface methodology (RSM) and analysis of variance (ANOVA). Three levels were assigned for each factor. There were 27 experimental trials carried out, and a significant regression for the coefficient between the factors was derived. The BBD and ANOVA analysis demonstrate that the predicted values from the model are in satisfactory correlation with the experimental results. The optimum responses found were achieved by setting the following injection molding parameters: melting temperature of 278 °C and injection pressure of 122 bar. Carbon fiber, as a unidirectional reinforcement, should be immersed in liquid nitrogen for 10 min and mounted on the mold in a pretensioned state with a force of 100 N. The combination of these parameters can produce an optimum flexural strength of 248.6 Mpa, impact strength of 173.4 kJ/m<sup>2</sup> and an ILSS of 30.4 Mpa.Heru S. B. RochardjoCahyo BudiyantoroMDPI AGarticlepolyamide 6hybrid fiberovermoldingcryogenic treatmentBox–Behnken designflexural strengthOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3820, p 3820 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	polyamide 6 hybrid fiber overmolding cryogenic treatment Box–Behnken design flexural strength Organic chemistry QD241-441
spellingShingle	polyamide 6 hybrid fiber overmolding cryogenic treatment Box–Behnken design flexural strength Organic chemistry QD241-441 Heru S. B. Rochardjo Cahyo Budiyantoro Manufacturing and Analysis of Overmolded Hybrid Fiber Polyamide 6 Composite
description	Currently, fiber-reinforced thermoplastic composites are widely applied in structural applications. It has great potential to replace metal structures and provides advantages in weight reduction. In this study, the pretensioned unidirectional carbon fiber was overmolded by Polyamide 6 contained 30%wt of glass fibers (PA 6-30GF). Process parameters such as injection pressure, melting temperature, duration of carbon fiber cryogenic treatment, and fiber pretension were optimized to maximize the flexural strength, impact strength, and interlaminar properties of the hybrid composite. The relationship between factors and responses was analyzed using Box–Behnken design (BBD) from response surface methodology (RSM) and analysis of variance (ANOVA). Three levels were assigned for each factor. There were 27 experimental trials carried out, and a significant regression for the coefficient between the factors was derived. The BBD and ANOVA analysis demonstrate that the predicted values from the model are in satisfactory correlation with the experimental results. The optimum responses found were achieved by setting the following injection molding parameters: melting temperature of 278 °C and injection pressure of 122 bar. Carbon fiber, as a unidirectional reinforcement, should be immersed in liquid nitrogen for 10 min and mounted on the mold in a pretensioned state with a force of 100 N. The combination of these parameters can produce an optimum flexural strength of 248.6 Mpa, impact strength of 173.4 kJ/m<sup>2</sup> and an ILSS of 30.4 Mpa.
format	article
author	Heru S. B. Rochardjo Cahyo Budiyantoro
author_facet	Heru S. B. Rochardjo Cahyo Budiyantoro
author_sort	Heru S. B. Rochardjo
title	Manufacturing and Analysis of Overmolded Hybrid Fiber Polyamide 6 Composite
title_short	Manufacturing and Analysis of Overmolded Hybrid Fiber Polyamide 6 Composite
title_full	Manufacturing and Analysis of Overmolded Hybrid Fiber Polyamide 6 Composite
title_fullStr	Manufacturing and Analysis of Overmolded Hybrid Fiber Polyamide 6 Composite
title_full_unstemmed	Manufacturing and Analysis of Overmolded Hybrid Fiber Polyamide 6 Composite
title_sort	manufacturing and analysis of overmolded hybrid fiber polyamide 6 composite
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/6def697ca7b340d4a97ed103290ed050
work_keys_str_mv	AT herusbrochardjo manufacturingandanalysisofovermoldedhybridfiberpolyamide6composite AT cahyobudiyantoro manufacturingandanalysisofovermoldedhybridfiberpolyamide6composite
_version_	1718431707249508352

Manufacturing and Analysis of Overmolded Hybrid Fiber Polyamide 6 Composite

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