Synthesis of Bionanocomposite Films with PLA/Halloysite

Year 2020, Volume: 3 Issue: 1, 38 - 41, 22.06.2020

Sevil Begüm Karakaş Mehmet Burçin Pişkin Nurcan Tugrul

Abstract

Polylactic acid (PLA) is a kind of biodegradable and biocompatible polymer which can be replaced of other polymer groups based on petroleum. It is used in wider application areas such as packaging due to their unique properties. On the other hand, mechanical (brittleness) and thermal properties of PLA are inadequate so that it should be improved. Therefore, halloysite (HNTs) which is a kaolin group clay can be used to overcome from these obstacles due to their high mechanical strength and modulus. It is aimed to synthesize biocompatibility PLA/HNTs film and collaborate with plasticizer materials to improve mechanical properties of film. Moreover, it was examined effect of iron oxide proportion to features of film. PLA/natural HNTs films were prepared and plasticizer’s material was mixed by solution casting method to investigate their tensile properties. In addition; HNTs sample which were taken from TURKEY contained iron impurities. Therefore, it was leached using by oxalic acid as a leaching agent. Fourier Transformed Infrared (FTIR), X-ray fluorescence (XRF) and X-ray diffraction (XRD) devices were used to characterization of HNTs clay. Additionally, the resultant films tensile properties were investigated. As a conclusion, it was observed that halloysite addition increased the tensile strength vaşues of PLA/HNTs bionanocomposite films.

Keywords

: Polylactic acid (PLA), Halloysite (HNTs), Solution casting method, Leaching

References

• Akçıl, A., Tuncuk, A. 2006. Kaolenlerin safsızlaştırılmasında kimyasal ve biyolojik yöntemlerin incelenmesi. Kil Bilimi ve Teknolojisi, 2:59-69.
• Alakrach, A. M., Noriman, N. Z., Alsaadi, M. A., Sam, S. T., Pasbakhsh, P., Dahham, O. S., Shayfull, Z 2018. Thermal properties of PLA/HNTs composites: Effect of different halloysite nanotube. In AIP Conference Proceedings 20(1):20052.
• Alakrach, A. M., Noriman, N. Z., Dahham, O. S., Al-Rashdi, A. A., Johari, I., Razlan, Z. M., Khairunizam, W 2019, Physical properties of plasticized PLA/HNTs bionanocomposites: effects of plasticizer type and content. In IOP Conference Series: Materials Science and Engineering 557(1):12067.
• Calderon, G.D.T., Rodriguez, J.I., Ortiz-Mendez, U., Torres-Martinez, L.M. 2005. Iron leaching of a Mexican Clay of industrial interest by oxalic acid, Journal of Materials Online, 1:1-8.
• De Silva, R. T., Pasbakhsh, P., Goh, K. L., Chai, S. P., Chen, J. 2014. Synthesis and characterisation of poly (lactic acid)/halloysite bionanocomposite films. Journal of Composite Materials, 48(30): 3705-3717.
• Murariu, M., & Dubois, P. 2016. PLA composites: From production to properties. Advanced drug delivery reviews. 107:17-46.
• Rhim, J. W., Mohanty, A. K., Singh, S. P., Ng, P. K. 2006. Effect of the processing methods on the performance of polylactide films: Thermocompression versus solvent casting. Journal of applied polymer science. 101(6): 3736-3742.
• Risyon, N. P., Othman, S. H., Basha, R. K., Talib, R. A. 2020. Characterization of polylactic acid/halloysite nanotubes bionanocomposite films for food packaging. Food Packaging and Shelf Life, 23:100450.
• Saklar, S., & Yorukoglu, A. 2015. Effects of acid leaching on halloysite. Physicochemical Problems of Mineral Processing, 51(1) :83-94.
• Saklar, S., Ağrılı, H., Zimitoğlu, O., Başara, B., Kaan, U. 2012. Kuzeybatı Anadolu halloysit/kaolinitlerinin karakterizasyon çalışmaları. Maden Tetkik Arama Genel Müdürlüğü Dergisi, 145: 48-61.
• Szczepanik, B., Słomkiewicz, P., Garnuszek, M., Czech, K., Banaś, D., Kubala-Kukuś, A., Stabrawa, I. 2015. The effect of chemical modification on the physico-chemical characteristics of halloysite: FTIR, XRF, and XRD studies. Journal of Molecular Structure, 1084:16-22.
• Tchakouté, H. K., Melele, S. J., Djamen, A. T., Kaze, C. R., Kamseu, E., Nanseu, C. N., Rüscher, C. H. 2020. Microstructural and mechanical properties of poly (sialate-siloxo) networks obtained using metakaolins from kaolin and halloysite as aluminosilicate sources: A comparative study. Applied Clay Science, 186:105448.
• Zeng, S., Reyes, C., Liu, J., Rodgers, P. A., Wentworth, S. H., Sun, L. 2014. Facile hydroxylation of halloysite nanotubes for epoxy nanocomposite applications. Polymer, 55(25): 6519-6528.