Influence of Water Hornification and Alkaline Treatment on the Stress-Strain Behaviour of Jute Fibers
Y.G. dos Santos Mendonça, B. Zukowsk, R.D.T. Filho
Abstract. The aim of this work is to present the influence of two treatments, namely water hornification, and alkaline treatment, on the stress-strain behaviour of jute fibers. A group of jute fibers was subjected to 5 cycles of wetting and drying. In a cycle, the fiber was immersed in water at 25 °C for 3 hours and dried for 16 hours at the temperature of 80°C. The other group was submitted to 1 cycle of alkaline treatment in a saturated solution of Ca(OH)2 with water for 50 minutes and dried for 24 hours at the temperature of 40 °C. The tensile stress-strain behavior of the natural fibers was determined before and after each treatment. The effectiveness of the alkaline treatment was evaluated by tensile tests performed on a microforce testing system using three different gage lengths: 20, 30 and 40 mm. The cross-sectional area of the fiber was measured using scanning electron microscope (SEM) micrographs and image analysis. The Young´s modulus was measured for all the groups and gage lengths. Both applied treatments increased the tensile strength of the jute fibers in comparison with the untreated fibers.
Keywords
Jute, Water Hornification, Alkaline Treatment, Stress-Strain Behaviour, Scanning Electron Microscope
Published online , 8 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Y.G. dos Santos Mendonça, B. Zukowsk, R.D.T. Filho, ‘Influence of Water Hornification and Alkaline Treatment on the Stress-Strain Behaviour of Jute Fibers’, Materials Research Proceedings, Vol. 7, pp 383-390, 2018
DOI: https://dx.doi.org/10.21741/9781945291838-36
The article was published as article 36 of the book Non-Conventional Materials and Technologies
References
[1] Singh, B., Gupta, M., Tarannum, H., Randhawa, A., 2011, “Natural Fiber- Based Composite Building Materials”, in Cellulose Fibers: Bio and Nano Polymer Composites – Green Chemistry and Technology. Springer-Verlag. Edited by KALIA, S., KAITH, B. S., KAUR, I. https://doi.org/10.1007/978-3-642-17370-7_24
[2] Graupner, N., Müssig, J., 2010, “Technical Applications of Natural Fibres: An Overview”, in Industrial Applications of Natural Fibres: Structure, Properties and Technical Applications. 1 ed., Wiley Series in Renewable Resources. Edited by JÖRG MÜSSIG.
[3] Rahman, S., 2010, “Jute – A Versatile Natural Fibre: Cultivation, Extraction and Processing”, in Industrial Applications of Natural Fibres: Structure, Properties and Technical Applications. 1 ed., Wiley Series in Renewable Resources. Edited by JÖRG MÜSSIG.
[4] Winklerprins, A. M. G. A., 2006, “Jute Cultivation in the Lower Amazon, 1940– 1990: An Ethnographic Account from Santarém, Pará, Brazil”, Journal of Historical Geography, v. 32, n. 4, pp. 818-838. https://doi.org/10.1016/j.jhg.2005.09.028
[5] Thomas, S., Paul, S. A., Pothan, L. A., Deepa, B., 2011, “Natural Fibres: Structure, Properties and Applications”, in Cellulose Fibers: Bio and Nano Polymer Composites – Green Chemistry and Technology. Springer-Verlag. Edited by Kalia, S., Kaith, B. S., Kaur, I. https://doi.org/10.1007/978-3-642-17370-7_1
[6] Ferreira, S.R, Effect of surface treatments on the structure, mechanical, durability and bond behavior of vegetable fibers for cementitious composites. Tese de doutorado, Universidade Federal do Rio de Janeiro, 2016.
[7] Young, J., Mindness, S., Gray, R., & Bentur, A. (1998). The science and technology of civil engineering materials. Saddle River, NJ: Prentice Hall.
[8] Fidelis, M.E.A., Desenvolvimento e Caracterização Mecânica de Compósitos Cimentícios Têxteis Reforçados com Fibras de Juta. Tese de D.Sc., COPPE/UFRJ, Rio de Janeiro, RJ, Brasil, 2014.
[9] ASTM. ASTM C1557-03 Standard Test Method for Tensile Strength and Young’s Modulus of Fibers West Conshohocken, PA, USA: American Society for Testing and Materials; 2008.
[10] Silva F. DE A., Toledo R.D., (2013). In: The effect of fiber morphology on the tensile strength of natural fibers, Journal of Materials Research and Technology, 2013;2(2): p 149-157. https://doi.org/10.1016/j.jmrt.2013.02.003
