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Cao M, Cui T, Yue Y, Li C, Guo X, Jia X, Wang B. Preparation and Characterization for the Thermal Stability and Mechanical Property of PLA and PLA/CF Samples Built by FFF Approach. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5023. [PMID: 37512297 PMCID: PMC10383206 DOI: 10.3390/ma16145023] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/12/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023]
Abstract
Currently, the mechanical performances of polylactic acid (PLA) samples prepared using the fused filament fabrication (FFF) technique are relatively poor. Hence, the carbon fiber (CF) is used to improve the thermal stability and mechanical property of FFF-ed PLA samples in this paper. The crystalline structure, thermal stability, melt flow rate, tensile strength and fractured surface morphology of PLA and PLA/CF samples were investigated with an X-ray diffraction device, differential scanning calorimeter, thermogravimetric analyzer, melt flow rate equipment, universal tensile test machine and scanning electron microscope, respectively. Meanwhile, the reinforcement mechanism of CF on the mechanical property of PLA samples was also analyzed. XRD results revealed that the diffraction peaks intensities of PLA/CF sample were obviously lower than those of PLA sample. TGA and DSC curves illustrated that the initial thermal decomposition temperature, thermal stability and crystallinity of the PLA/CF sample improved significantly. The tensile strength of the PLA/CF sample was 91.58 MPa, which was 42.49% higher than that of the PLA sample. Moreover, SEM images showed that the fractured behavior of the PLA sample varied from brittle fracture to ductile fracture after the introduction of CF. The results concluded the CF is a feasible fiber for enhancing the performances of the PLA sample.
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Affiliation(s)
- Mengyu Cao
- College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, China
| | - Tianqi Cui
- College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, China
| | - Yuhang Yue
- College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, China
| | - Chaoyu Li
- College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, China
| | - Xue Guo
- College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, China
| | - Xin Jia
- Procurement & Equipment Department, China National Petroleum Corporation, Beijing 100007, China
| | - Baojin Wang
- College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, China
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2
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Adil S, Lazoglu I. A review on additive manufacturing of carbon fiber‐reinforced polymers: Current methods, materials, mechanical properties, applications and challenges. J Appl Polym Sci 2022. [DOI: 10.1002/app.53476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Samia Adil
- Manufacturing and Automation Research Center Koç University Istanbul Turkey
| | - Ismail Lazoglu
- Manufacturing and Automation Research Center Koç University Istanbul Turkey
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3
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Kahraman Y, Özdemir B, Kılıç V, Goksu YA, Nofar M. Super toughened and highly ductile
PLA
/
TPU
blend systems by in situ reactive interfacial compatibilization using multifunctional epoxy‐based chain extender. J Appl Polym Sci 2021. [DOI: 10.1002/app.50457] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yusuf Kahraman
- Metallurgical and Materials Engineering Department, Faculty of Chemical and Metallurgical Engineering Istanbul Technical University Istanbul Turkey
| | - Burcu Özdemir
- Metallurgical and Materials Engineering Department, Faculty of Chemical and Metallurgical Engineering Istanbul Technical University Istanbul Turkey
| | - Volkan Kılıç
- Polymer Science and Technology Program Institute of Science and Technology, Istanbul Technical University Istanbul Turkey
| | - Yonca Alkan Goksu
- Metallurgical and Materials Engineering Department, Faculty of Chemical and Metallurgical Engineering Istanbul Technical University Istanbul Turkey
| | - Mohammadreza Nofar
- Metallurgical and Materials Engineering Department, Faculty of Chemical and Metallurgical Engineering Istanbul Technical University Istanbul Turkey
- Polymer Science and Technology Program Institute of Science and Technology, Istanbul Technical University Istanbul Turkey
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4
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Liu X, Gharasoo M, Shi Y, Sigmund G, Hüffer T, Duan L, Wang Y, Ji R, Hofmann T, Chen W. Key Physicochemical Properties Dictating Gastrointestinal Bioaccessibility of Microplastics-Associated Organic Xenobiotics: Insights from a Deep Learning Approach. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:12051-12062. [PMID: 32931256 DOI: 10.1021/acs.est.0c02838] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A potential risk from human uptake of microplastics is the release of plastics-associated xenobiotics, but the key physicochemical properties of microplastics controlling this process are elusive. Here, we show that the gastrointestinal bioaccessibility, assessed using an in vitro digestive model, of two model xenobiotics (pyrene, at 391-624 mg/kg, and 4-nonylphenol, at 3054-8117 mg/kg) bound to 18 microplastics (including pristine polystyrene, polyvinyl chloride, polyethylene terephthalate, polypropylene, thermoplastic polyurethane, and polyethylene, and two artificially aged samples of each polymer) covered wide ranges: 16.1-77.4% and 26.4-83.8%, respectively. Sorption/desorption experiments conducted in simulated gastric fluid indicated that structural rigidity of polymers was an important factor controlling bioaccessibility of the nonpolar, nonionic pyrene, likely by inducing physical entrapment of pyrene in porous domains, whereas polarity of microplastics controlled bioaccessibility of 4-nonylphenol, by regulating polar interactions. The changes of bioaccessibility induced by microplastics aging corroborated the important roles of polymeric structures and surface polarity in dictating sorption affinity and degree of desorption hysteresis, and consequently, gastrointestinal bioaccessibility. Variance-based global sensitivity analysis using a deep learning neural network approach further revealed that micropore volume was the most important microplastics property controlling bioaccessibility of pyrene, whereas the O/C ratio played a key role in dictating the bioaccessibility of 4-nonylphenol in the gastric tract.
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Affiliation(s)
- Xinlei Liu
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin 300350, P. R. China
| | - Mehdi Gharasoo
- University of Waterloo, Department of Earth and Environmental Sciences, Ecohydrology, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Yu Shi
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin 300350, P. R. China
| | - Gabriel Sigmund
- Department of Environmental Geosciences, Research Platform Plastics in the Environment and Society (PLENTY), Centre for Microbiology and Environmental Systems Science, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Thorsten Hüffer
- Department of Environmental Geosciences, Research Platform Plastics in the Environment and Society (PLENTY), Centre for Microbiology and Environmental Systems Science, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Lin Duan
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin 300350, P. R. China
| | - Yongfeng Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, P. R. China
| | - Rong Ji
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, P. R. China
| | - Thilo Hofmann
- Department of Environmental Geosciences, Research Platform Plastics in the Environment and Society (PLENTY), Centre for Microbiology and Environmental Systems Science, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Wei Chen
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin 300350, P. R. China
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5
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Nofar M, Mohammadi M, Carreau PJ. Effect of TPU hard segment content on the rheological and mechanical properties of PLA/TPU blends. J Appl Polym Sci 2020. [DOI: 10.1002/app.49387] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Mohammadreza Nofar
- Department of Metallurgical and Materials Engineering, Faculty of Chemical and Metallurgical EngineeringIstanbul Technical University Istanbul Turkey
| | - Mojtaba Mohammadi
- Department of Chemical Engineering, Center for High Performance Polymer and Composite Systems (CREPEC)Polytechnique Montreal Montreal Quebec Canada
| | - Pierre J. Carreau
- Department of Chemical Engineering, Center for High Performance Polymer and Composite Systems (CREPEC)Polytechnique Montreal Montreal Quebec Canada
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