Investigation of the Mechanical Properties of Vinyl ester Carbon Composites Through Immersion in Seawater and Freshwater Using the VARI (Vacuum Assisted Resin Infusion) Method

Nurul Lailatul Muzayadah, Taufiq S. Nurtiasto, Kosim Abdurrahman, Afid Nugroho, Nur M. Ula, Rezky Agung P., Redha A. Ramadhan, Rozi Hendrawan


The carbon-vinyl ester composites have made for the development of the base material for Amphibious floats. The properties of this composite have strength, lighter weight and resistant to corrosion. This study was aimed to report the effect of two different water immersion treatment namely seawater and freshwater on the mechanical properties of composite made from fiber twill and vinyl ester resin using the vacuum assisted resin infusion (VARI) method. Experiments were carried out on tensile, compressive, and shear tests. The specimens were immersed in seawater and freshwater for ten days. The results have shown that Ultimate Tensile Strength of the composite with seawater immersion declined 1.27% compare with the composite without immersion treatment, while the composite in freshwater got greater 3.56%. The decrement of compressive and shear strength was more significant than tensile strength. The compressive strength declined 17.89% and 16.7% for freshwater and seawater treatment, respectively.  The shear strength decreased 27.87 % and 25.77% for freshwater and seawater treatment, respectively.


Vacuum Infusion, Maximum point stress, vinyl ester, composite,seawater, freshwater

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A. P. Chakraverty, U. K. Mohanty, B. C. Ray. 2013. “Response of Sea Water Immersed GFRP Composite to Thermal Shockn.†Journal of Materials & Metallurgical Engineering.

Abdurohman, K., and M. Adhitya. 2019. “Effect of Water and Seawater on Mechanical Properties of Fiber Reinforced Polymer Composites: A Review for Amphibious Aircraft Float Development.†in IOP Conference Series: Materials Science and Engineering.

Abdurohman, K., N. L. Muzayadah, A. Nugroho, T. Satrio, and R. S. Aritonang. 2020. “A Comparison between Polyester and Vinylester Matrice toward E-Glass WR 185 Polymer Composites for Unmanned Aerial Vehicle (LSU 05 NG).†in PROCEEDINGS OF THE 3RD INTERNATIONAL SEMINAR ON METALLURGY AND MATERIALS (ISMM2019): Exploring New Innovation in Metallurgy and Materials.

Abdurohman, K., T. Satrio, N. L. Muzayadah, and Teten. 2018. “A Comparison Process between Hand Lay-up, Vacuum Infusion and Vacuum Bagging Method toward e-Glass EW 185/Lycal Composites.†in Journal of Physics: Conference Series.

Abdurohman, Kosim, and Aryandi Marta. 2018. “Kajian Eksperimental Tensile Properties Komposit Poliester Berpenguat Serat Karbon Searah Hasil Manufaktur Vacuum Infusion Sebagai Material Struktur Lsu.†Jurnal Teknologi Dirgantara 14(1):61. doi: 10.30536/j.jtd.2016.v14.a2948.

Alia, Cristina, María V. Biezma, Paz Pinilla, José M. Arenas, and Juan C. Suárez. 2013. “Degradation in Seawater of Structural Adhesives for Hybrid Fibre-Metal Laminated Materials.†Advances in Materials Science and Engineering 2013. doi: 10.1155/2013/869075.

Bian, Liping, Jiayu Xiao, Jingcheng Zeng, and Suli Xing. 2012. “Effects of Seawater Immersion on Water Absorption and Mechanical Properties of GFRP Composites.†Journal of Composite Materials. doi: 10.1177/0021998312436992.

Bunsell, A. R., and J. Renard. 2005. Fundamentals of Fibre Reinforced Composite Materials.

Davies, Peter. 2016. “Environmental Degradation of Composites for Marine Structures: New Materials and New Applications.†in Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences.

Dawei, Wu, Wu Zheng, Zhang Landing, and Hu Jizhong. 2011. “Safety and Airworthiness Design of Ultra-Light and Very Light Amphibious Aircrafts.†in Procedia Engineering.

Firdosh, Salim, H. N. Narasimha Murthy, Gangadhar Angadi, and N. Raghavendra. 2018. “Investigation of Water Absorption Characteristics of Nano-Gelcoat for Marine Application.†Progress in Organic Coatings. doi: 10.1016/j.porgcoat.2017.10.004.

Fitriah, S. N., M. S. Abdul Majid, M. J. M. Ridzuan, R. Daud, A. G. Gibson, and T. A. Assaleh. 2017. “Influence of Hydrothermal Ageing on the Compressive Behaviour of Glass Fibre/Epoxy Composite Pipes.†Composite Structures. doi: 10.1016/j.compstruct.2016.09.078.

Gargano, A., K. Pingkarawat, V. Pickerd, T. Delaney, R. Das, and A. P. Mouritz. 2018. “Effect of Seawater Immersion on the Explosive Blast Response of a Carbon Fibre-Polymer Laminate.†Composites Part A: Applied Science and Manufacturing. doi: 10.1016/j.compositesa.2018.03.027.

Gautier, L., B. Mortaigne, and V. Bellenger. 1999. “Interface Damage Study of Hydrothermally Aged Glass-Fibre-Reinforced Polyester Composites.†Composites Science and Technology. doi: 10.1016/S0266-3538(99)00085-8.

Graham, Stephen R., Robert Hodgson, Luc Vechot, and M. Iqbal Essa. 2011. “Calorimetric Studies on the Thermal Stability of Methyl Ethyl Ketone Peroxide (MEKP) Formulations.†Process Safety and Environmental Protection. doi: 10.1016/j.psep.2011.08.005.

Hsiao, K. T., and D. Heider. 2012. “Vacuum Assisted Resin Transfer Molding (VARTM) in Polymer Matrix Composites.†in Manufacturing Techniques for Polymer Matrix Composites (PMCs).

Jędral, Arnold. 2019. “Review of Testing Methods Dedicated for Sandwich Structures with Honeycomb Core.†Transactions on Aerospace Research 2019(2):1–14. doi: 10.2478/tar-2019-0006.

Mittal, Garima, Vivek Dhand, Kyong Yop Rhee, Soo Jin Park, Hyeon Ju Kim, and Dong Ho Jung. 2015. “Investigation of Seawater Effects on the Mechanical Properties of Untreated and Treated MMT-Based Glass Fiber/Vinylester Composites.†Ocean Engineering 108(November 2017):393–401. doi: 10.1016/j.oceaneng.2015.08.019.

Mourad, Abdel Hamid I., Abdel Magid Beckry Mohamed, and Tamer El-Maaddawy. 2010. “Effect of Seawater and Warm Environment on Glass/Epoxy and Glass/Polyurethane Composites.†in Applied Composite Materials.

Pavlidou, S., K. Krassa, and C. D. Fapaspyrides. 2005. “Woven Glass Fabric/Polyester Composites: Effect of Interface Tailoring on Water Absorption.†Journal of Applied Polymer Science. doi: 10.1002/app.22179.

Ray, B. C. 2006. “Temperature Effect during Humid Ageing on Interfaces of Glass and Carbon Fibers Reinforced Epoxy Composites.†Journal of Colloid and Interface Science. doi: 10.1016/j.jcis.2005.12.023.

SHOWA DENKO K.K. n.d. Technical Data Sheet Ripoxy R-804J. Tokyo.

Tododjahi, Jusuf, Kristomus Boimau, and Ishak Limbong. 2018. “Pengaruh Perendaman Terhadap Sifat Mekanik Komposit Polyester Berpenguat Serat Glass.†LONTAR Jurnal Teknik Mesin Undana (LJTMU ) 1(2 SE-Articles).

Zhao, Yian, Wei Liu, Leong Keey Seah, and Gin Boay Chai. 2016. “Delamination Growth Behavior of a Woven E-Glass/Bismaleimide Composite in Seawater Environment.†Composites Part B: Engineering. doi: 10.1016/j.compositesb.2016.09.045.


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