Investigation of the Effects of Nanoclay Additive on the Thermal and Mechanical Properties of PLA

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İmalat Teknolojileri ve Uygulamaları
Cilt: 6 Sayı: 3
Investigation of the Effects of Nanoclay Additive on the Thermal and Mechanical Properties of PLA

Investigation of the Effects of Nanoclay Additive on the Thermal and Mechanical Properties of PLA

Authors : Mehmet İsmail Sarı, İsmail Şahin

Pages : 308-317

Doi:10.52795/mateca.1808873

View : 34 | Download : 120

Publication Date : 2025-12-30

Article Type : Research Paper

Abstract :Polylactic acid (PLA) is a frequently preferred material for 3D applications due to its renewable resource availability, biocompatibility, and biodegradability. However, PLA\\\'s mechanical strength and thermal resistance are limited compared to polymers like Acrylonitrile Butadiene Styrene (ABS) and Polyethylene Terephthalate Glycol (PETG). These disadvantages can be overcome by adding various materials to the PLA matrix. This study aimed to improve both thermal behavior and mechanical strength properties by adding nanoclay to the PLA matrix. As a result of some observations, PLA granules were dissolved using chloroform solvent, the pure and nanoclay added mixtures were homogenized by magnetic stirring and ultrasonic processes, and then samples were prepared for Thermogravimetric Analysis (TGA) and tensile tests. Samples were then prepared for TGA and tensile tests. In TGA analysis, degradation profiles between pure PLA and nanoclay-doped PLA were compared; it was determined that the doped system experienced less mass loss in the second degradation stage. In tensile tests, nanoclay-added PLA reached a maximum tensile value of 73.8 MPa and a strain of approximately 0.0313%, representing a significant increase compared to pure PLA, which has a cataloged tensile strength of 50 MPa. While the findings indicate that nanoclay additives have the potential to improve the mechanical performance of PLA, the additive\\\'s effect on thermal stability was limited due to processing conditions. This study demonstrates the properties of nanoclay reinforced PLA systems prepared in low quantity at laboratory scale and provides guidance for the preparation and optimization of such biocomposites in future.
Keywords : PLA, Nanokil, Nanokompozit, Termogravimetrik analiz (TGA), Çekme testi

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