Pengaruh Variasi Persentase Campuran Polymer Polyester dan Vinyl Ester Terhadap Kekuatan Tegangan Lentur



DOI: https://doi.org/10.25077/metal.5.2.126-131.2021

Author(s)

Nusyirwan Adnand (Universitas Andalas)
R Mutya (Universitas Andalas)
Firman Ridwan (Universitas Andalas)
Hairul Abral (Universitas Andalas)
Hendery Dahlan (Universitas Andalas)
Eka Satria (Universitas Andalas)

Abstract


Polymer mixture of polyester and vinyl ester is widely used in engineering fields such as for car bumpers, boat bodies, ultra-light aircraft wings, wind turbine blades and others. One of the requirements to meet the application aspects in the engineering field is the ability of the material to withstand bending loads. For this reason, it is necessary to test the flexural stress characteristics of the mixture of the two polymers of unsaturated polyester and unsaturated vinyl ester. The aim is to find out which of the two polymer blends obtains superior flexural resistance properties from each of the polymers with respect to the blend percentage. To determine the flexural stress value of the polyester and vinyl ester mixture, a flexural stress test was carried out with reference to the standard flexural test or the bending test used based on ASTM D 790 by varying the composition of the mixture 100%: 0%, 90%: 10%, 80%: 20%, 60%:40%, and 0%:100%. From the results of the bending stress test on specimens with variations in the composition of polyester and vinyl ester with the hand lay-up method, the highest bending stress value is found in the composition of 60% polyester and 40% vinyl ester, which is 126.88 MPa ( an increase in maximum flexural strength of 255%)

Keywords


bending-stress; polyester; vinyl ester

Full Text:

PDF

References


Riswiyanto, Kimia Organik. Jakarta: Erlangga, 2009.

J. C. B. and J. W. Gillespie, “The effects of a thermoplastic polyester preform binder on vinyl ester resin,” J. Thermoplast. Compos. Mater, vol. 18, hal. 157–179, 2005.

D. S. Longnecker, Background and perspective, vol. 9781441964. ACADEMIC PRESS, INC, 2013.

S. A. N. Mohammed, E.S. Zainudin, S. M. Sapuan, M. D. Azaman, A.M.T. Arifin, “Introduction to Natural Fiber Reinforced Vinyl Ester and Vinyl Polymer Composites,” Elsevier Ltd, 2018.

“(ASTM), AMERICAN SOCIETY OF TESTING AND MATERIALS,2000a,” Flexural Prop. unreinforced Plast. Electr. Insul. Mater. ASTM D790. Annu. B. ASTM Stand. Am. Soc. Test. Mater. Philadelphia.

M. B. Launikitis, Handbook of Composites. New York: Springer, Boston, MA, 1982.

D. Feldman, Bahan Polimer Konstruksi, Terjemahan Anton J, Hartono. PT Gramedia Pustaka Utama, 1995.

L. Utracki, “Commercial Polymer Blends Hardcover. Springer. W.A. (2014). Pendahuluan Polimer.,” 1998.

H. Ardhyananta, F.D. Puspadewa, S.T Wicaksono, Widyastuti, A.T. Wibisono, B.A. Kurniawan, H. Ismail and A.V. Salsac, “Mechanical and Thermal Properties of Unsaturated Polyester/Vinyl Ester Blends Cured at Room Temperature", IOP Conf. Ser. Mater. Sci.Eng,” vol. 202, no. 1, 2017.

H. Abral, R. Fajrul, M. Mahardika, D. Handayani, E. Sugiarti, A.N. Muslimin and S.D. Rosanti, “Improving impact, tensile and thermal properties of thermoset unsaturated polyester via mixing with methyl merhacrylate and thermoset vinyl ester,” Polimer Testing, vol 81, 2020.


StatisticsArticle Metrics

This article has been read : 503 times
PDF file viewed/downloaded : 165 times

Copyright (c) 2021 Nusyirwan Adnand

 


View METAL's Stats

 

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.