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

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