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Article

Nonisothermal Crystallization of Surface-Treated Alumina and Aluminum Nitride-Filled Polylactic Acid Hybrid Composites

School of Chemical Engineering & Materials Science, Chung-Ang University, Seoul 156-756, Korea
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Polymers 2019, 11(6), 1077; https://doi.org/10.3390/polym11061077
Received: 4 June 2019 / Revised: 19 June 2019 / Accepted: 20 June 2019 / Published: 21 June 2019
(This article belongs to the Special Issue Thermal Analysis of Polymer Materials)
This work investigates the nonisothermal crystallization and melting behavior of polylactic acid (PLA), filled with treated and untreated alumina and nano-aluminum nitride hybrid composites. Analysis by attenuated total reflectance Fourier transform infrared spectroscopy revealed that the treated fillers and the PLA matrix developed a good interaction. The crystallization and melting behaviors of the PLA hybrid composites were investigated using differential scanning calorimetry showed that the degree of crystallinity increased with the addition of hybrid fillers. Unlike the untreated PLA composites, the complete crystallization of the treated PLA hybrid composites hindered cold crystallization during the second heating cycle. The crystallization kinetics studied using the Avrami model indicated that the crystallization rate of PLA was affected by the inclusion of filler particles. X-ray diffraction analysis confirmed crystal formation with the incorporation of filler particles. The inclusion of nano-aluminum nitride (AlN) and the increase in the crystallinity led to an improvement of the storage modulus. View Full-Text
Keywords: hybrid composites; crystallinity; solution casting; differential scanning calorimetry hybrid composites; crystallinity; solution casting; differential scanning calorimetry
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MDPI and ACS Style

Lule, Z.; Kim, J. Nonisothermal Crystallization of Surface-Treated Alumina and Aluminum Nitride-Filled Polylactic Acid Hybrid Composites. Polymers 2019, 11, 1077. https://doi.org/10.3390/polym11061077

AMA Style

Lule Z, Kim J. Nonisothermal Crystallization of Surface-Treated Alumina and Aluminum Nitride-Filled Polylactic Acid Hybrid Composites. Polymers. 2019; 11(6):1077. https://doi.org/10.3390/polym11061077

Chicago/Turabian Style

Lule, Zelalem, and Jooheon Kim. 2019. "Nonisothermal Crystallization of Surface-Treated Alumina and Aluminum Nitride-Filled Polylactic Acid Hybrid Composites" Polymers 11, no. 6: 1077. https://doi.org/10.3390/polym11061077

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