The Effect of Alkalization Treatment on Fiber-Matrix Compatibility in Natural Fiber Reinforced Composite

Abstract:

This work was aimed to investigate the effect of alkalization treatment on the fiber-matrix interfacial interaction and hence their compatibility. Kenaf fiber was treated using a 6% NaOH solution for 8 hours. The composites were produced by mixing the treated fiber with PP at various temperatures, duration, and fiber composition. Alteration on the surface chemistry of the fiber was identified by performing FTIR analysis. The surface energy of the treated fiber was mathematically derived from the contact angle measurement results. The compatibility level between treated fiber and PP matrix was visualized through FESEM analysis. Tensile strength tests were also conducted to obtain data necessary for exploring the relationship between the thermodynamic aspects of the fiber-matrix interfacial interaction and the mechanical properties of the composites. The FTIR spectra show that there was significant increase in the %transmittance at wavelength range of 3100-3600 cm^-1 indicating that O-H groups were degraded during treatment. However, the polar component of the surface energy for treated fiber was instead higher compared to the untreated one. The SEM images show that there are no noticeable reduction in the size of the treated fibers as expected. On the other hand, the tensile strength of the PP-treated fibers composites reached its highest value when the matrix were loaded with fibers at the lowest percentage i.e. 5%.

• Periodical: Key Engineering Materials (Volume 847)
• Pages: 28-33
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.847.28
• Online since: June 2020
• Authors: Evana Yuanita*, Yuli Amalia Husnil, Myrna Ariati Mochtar, Rahma Lailani, Mochamad Chalid
• Keywords: Alkalization, Compatibility, Kenaf, Mechanical Properties, Surface Energy

References

[1] Sanjay, M.; Madhu, P.; Jawaid, M.; Senthamaraikannan, P.; Senthil, S. Characterization and properties of natural fiber polymer composites: A comprehensive review, J. Clean. Prod. 172(2018) 566-581.

DOI: 10.1016/j.jclepro.2017.10.101

[2] Yuanita, E.; A.Y. Pratama; H. Kurnia; E. Kustiyah; Ismojo; M. Chalid. Effect of alkalinization-bleaching and acid hydrolysis treatment stalk sweet sorghum waste on compatibilities in polypropylene matrix. IOP Conference Series: Materials Science and Engineering, 2019. 509: p.012080.

DOI: 10.1088/1757-899x/509/1/012080

[3] Handayani, A.S.; I.S. Purwaningsih; E. Yuanita; M. Christwardana; M. Chalid. The behavior of compatibility of Ap-g-PHMA to impact polypropylene/kenaf fibres composites. IOP Conference Series: Materials Science and Engineering, 2019. 509: p.012014.

DOI: 10.1088/1757-899x/509/1/012014

[4] Cai, M.; Takagi, H.; Nakagaito, A.; Li, Y.; Waterhouse, G. Effect Of Alkali Treatment On Interfacial Bonding In Abaca Fiber-Reinforced Composites. Composites Part A: Applied Science and Manufacturing 2016, 90, 589-597.

DOI: 10.1016/j.compositesa.2016.08.025

[5] Rizal, S.; Ikramullah; Gopakumar, D.; Thalib, S.; Huzni, S.; Abdul Khalil, H. Interfacial Compatibility Evaluation On The Fiber Treatment In The Typha Fiber Reinforced Epoxy Composites And Their Effect On The Chemical And Mechanical Properties. Polymers 2018, 10 (12), 1316.

DOI: 10.3390/polym10121316

[6] Jonoobi, M.; Harun, J.; Mathew, A.; Hussein, M.; Oksman, K. Preparation Of Cellulose Nanofibers With Hydrophobic Surface Characteristics. Cellulose 2009, 17 (2), 299-307.

DOI: 10.1007/s10570-009-9387-9

[7] Ali, A.; Shaker, K.; Nawab, Y.; Jabbar, M.; Hussain, T.; Militky, J.; Baheti, V. Hydrophobic Treatment Of Natural Fibers And Their Composites—A Review. Journal of Industrial Textiles 2016, 47 (8), 2153-2183.

DOI: 10.1177/1528083716654468

[8] Al-Maharma, A.; Al-Huniti, N. Critical Review Of The Parameters Affecting The Effectiveness Of Moisture Absorption Treatments Used For Natural Composites. Journal of Composites Science 2019, 3 (1), 27.

DOI: 10.3390/jcs3010027

[9] Wei, J.; Zhang, Y. Application Of Sessile Drop Method To Determine Surface Free Energy Of Asphalt And Aggregate. Journal of Testing and Evaluation 2012, 40 (5), 20120060.

DOI: 10.1520/jte20120060

[10] Hashim, M.Y.; Roslan, M.N.; Amin, A.M.; Mujahid, A.; Zaidi, A. Mercerization Treatment Parameter Effect on Natural Fiber Reinforced Polymer Matrix Composite: A Brief Review. World Acad. Sci. Eng. Technol. 2012, 6, 1638–1644.

[11] Xu, F.; Yu, J.; Tesso, T.; Dowell, F.; Wang, D. Qualitative And Quantitative Analysis Of Lignocellulosic Biomass Using Infrared Techniques: A Mini-Review. Applied Energy 2013, 104, 801-809.

DOI: 10.1016/j.apenergy.2012.12.019

[12] Ciolacu, D.; Ciolacu, F.; Popa, V. I. Amorphous cellulose - Structure and characterization. Cellulose Chem. Technol. 2011, 45 (1-2), 13-21.

[13] Fatriansyah, J. F.; Barmaki, M. J. Y.; Lailani, R.;Chalid, M. Crystallization kinetics study of impact polypropylene copolymer with kenaf as nucleating agent and reinforcement. International Journal of Technology. 2019, 10(5), 999-1009.

DOI: 10.14716/ijtech.v10i5.2267