Effect and investigating of graphene nanoparticles on mechanical, physical properties of polylactic acid polymer
Polylactic acid (PLA) is a linear aliphatic polyester thermoplastic made from renewable sources such as sugar beet and cornstarch. Methods of preparation of polylactic acid are biological and chemical. The advantages of polylactic acid are biocompatibility, easily processing, low energy loss, transp...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-06-01
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| Series: | Case Studies in Chemical and Environmental Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666016424000069 |
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| author | Yathrib Ajaj H.N.K. AL-Salman Ali M. Hussein Mohammed Khaleel Jamee Sherzod Abdullaev Alaa A. Omran Manal Morad Karim Alzahraa S. Abdulwahid Zaid H. Mahmoud Ehsan kianfar |
| author_facet | Yathrib Ajaj H.N.K. AL-Salman Ali M. Hussein Mohammed Khaleel Jamee Sherzod Abdullaev Alaa A. Omran Manal Morad Karim Alzahraa S. Abdulwahid Zaid H. Mahmoud Ehsan kianfar |
| author_sort | Yathrib Ajaj |
| collection | DOAJ |
| description | Polylactic acid (PLA) is a linear aliphatic polyester thermoplastic made from renewable sources such as sugar beet and cornstarch. Methods of preparation of polylactic acid are biological and chemical. The advantages of polylactic acid are biocompatibility, easily processing, low energy loss, transparency, high strength, resistance to water and fat penetration and low consumption of carbon dioxide during production. However, polylactic acid has disadvantages such as hydrophobicity, fragility at room temperature, low thermal resistance, slow degradation rate, permeability to gases, lack of active groups and chemical neutrality. To overcome the limitations of polylactic acid, such as low thermal stability and inability to absorb gases, nanoparticles such as graphene are added to improve its properties. Samples were prepared by solution casting method using chloroform as solvent and in thin films. The mechanical, thermal, and structural properties of Polylactic acid pure and Polylactic acid/graphene nanocomposites were studied using tensile Test X-ray diffraction (XRD), Root mean square (RMS) and Differential Scanning Calorimetry (DSC). Also, by exposing the samples to Ultraviolet (UV) rays and then performing the tensile test, the resistance of the produced nanocomposites against Ultraviolet (UV) rays was investigated. With performing the above tests, it was found that by adding graphene nanoparticles to Polylactic acid, the crystallinity decreases and the strength and elongation of graphene particles (0.4% graphene) increase to a certain extent and then decrease. The loss modulus and storage modulus are also increased by the addition of graphene nanoparticles. By comparing the samples exposed to Ultraviolet (UV) rays with other samples, a significant decrease in elongation and a significant increase in modulus of elasticity were observed. In other words, Ultraviolet (UV) rays make Polylactic acid/graphene nanocomposites brittle. |
| first_indexed | 2024-03-08T13:01:06Z |
| format | Article |
| id | doaj.art-3f76efb54f2342c6b1993f66fa0e9549 |
| institution | Directory Open Access Journal |
| issn | 2666-0164 |
| language | English |
| last_indexed | 2024-03-08T13:01:06Z |
| publishDate | 2024-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Chemical and Environmental Engineering |
| spelling | doaj.art-3f76efb54f2342c6b1993f66fa0e95492024-01-19T05:02:07ZengElsevierCase Studies in Chemical and Environmental Engineering2666-01642024-06-019100612Effect and investigating of graphene nanoparticles on mechanical, physical properties of polylactic acid polymerYathrib Ajaj0H.N.K. AL-Salman1Ali M. Hussein2Mohammed Khaleel Jamee3Sherzod Abdullaev4Alaa A. Omran5Manal Morad Karim6Alzahraa S. Abdulwahid7Zaid H. Mahmoud8Ehsan kianfar9German University of Technology in Oman, OmanPharmaceutical Chemistry Department, College of Pharmacy, University of Basrah, IraqDepartment of Biomedical Sciences, College of Science, Cihan University-Erbil, Kurdistan Region, IraqDepartment of Medical Laboratory Technology, Imam Jaafar AL-Sadiq University, IraqSenior Researcher, Department of Chemical Engineering, Central Asian University, Tashkent, Uzbekistan; Senior Researcher, Scientific and Innovation Department, Tashkent State Pedagogical University Named After Nizami, Tashkent, UzbekistanDepartment of Engineering, AL-Nisour University College, Baghdad, IraqCollege of Pharmacy, National University of Science and Technology, Dhi Qar, IraqAl-Hadi University College, Baghdad, 10011, IraqDepartment of Chemistry, College of Sciences, University of Diyala, IraqDepartment of Chemical Engineering, Arak Branch, Islamic Azad University, Arak, Iran; Young Researchers and Elite Club, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran; Corresponding author. German University of Technology in Oman, Oman. andPolylactic acid (PLA) is a linear aliphatic polyester thermoplastic made from renewable sources such as sugar beet and cornstarch. Methods of preparation of polylactic acid are biological and chemical. The advantages of polylactic acid are biocompatibility, easily processing, low energy loss, transparency, high strength, resistance to water and fat penetration and low consumption of carbon dioxide during production. However, polylactic acid has disadvantages such as hydrophobicity, fragility at room temperature, low thermal resistance, slow degradation rate, permeability to gases, lack of active groups and chemical neutrality. To overcome the limitations of polylactic acid, such as low thermal stability and inability to absorb gases, nanoparticles such as graphene are added to improve its properties. Samples were prepared by solution casting method using chloroform as solvent and in thin films. The mechanical, thermal, and structural properties of Polylactic acid pure and Polylactic acid/graphene nanocomposites were studied using tensile Test X-ray diffraction (XRD), Root mean square (RMS) and Differential Scanning Calorimetry (DSC). Also, by exposing the samples to Ultraviolet (UV) rays and then performing the tensile test, the resistance of the produced nanocomposites against Ultraviolet (UV) rays was investigated. With performing the above tests, it was found that by adding graphene nanoparticles to Polylactic acid, the crystallinity decreases and the strength and elongation of graphene particles (0.4% graphene) increase to a certain extent and then decrease. The loss modulus and storage modulus are also increased by the addition of graphene nanoparticles. By comparing the samples exposed to Ultraviolet (UV) rays with other samples, a significant decrease in elongation and a significant increase in modulus of elasticity were observed. In other words, Ultraviolet (UV) rays make Polylactic acid/graphene nanocomposites brittle.http://www.sciencedirect.com/science/article/pii/S2666016424000069Polylactic acidGrapheneNanocompositeSolution casting method |
| spellingShingle | Yathrib Ajaj H.N.K. AL-Salman Ali M. Hussein Mohammed Khaleel Jamee Sherzod Abdullaev Alaa A. Omran Manal Morad Karim Alzahraa S. Abdulwahid Zaid H. Mahmoud Ehsan kianfar Effect and investigating of graphene nanoparticles on mechanical, physical properties of polylactic acid polymer Case Studies in Chemical and Environmental Engineering Polylactic acid Graphene Nanocomposite Solution casting method |
| title | Effect and investigating of graphene nanoparticles on mechanical, physical properties of polylactic acid polymer |
| title_full | Effect and investigating of graphene nanoparticles on mechanical, physical properties of polylactic acid polymer |
| title_fullStr | Effect and investigating of graphene nanoparticles on mechanical, physical properties of polylactic acid polymer |
| title_full_unstemmed | Effect and investigating of graphene nanoparticles on mechanical, physical properties of polylactic acid polymer |
| title_short | Effect and investigating of graphene nanoparticles on mechanical, physical properties of polylactic acid polymer |
| title_sort | effect and investigating of graphene nanoparticles on mechanical physical properties of polylactic acid polymer |
| topic | Polylactic acid Graphene Nanocomposite Solution casting method |
| url | http://www.sciencedirect.com/science/article/pii/S2666016424000069 |
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