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Samyn P, Everaerts J, Chandroth AM, Cosemans P, Malek O. A feasibility study on femtosecond laser texturing of sprayed nanocellulose coatings. Carbohydr Polym 2024; 340:122307. [PMID: 38858026 DOI: 10.1016/j.carbpol.2024.122307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/08/2024] [Accepted: 05/20/2024] [Indexed: 06/12/2024]
Abstract
Nanocelluloses are emerging as natural materials with favourable properties for coating industry and can be applied by state-of-the-art spraying technology. While additional functionalities are commonly introduced through chemical modification, the surface microstructuring of nanocellulose coatings with high throughput methods remains unexplored. Here, a femtosecond laser is used for texturing spray-coated coatings made of cellulose nanofibrils (CNF) or cellulose nanocrystals (CNC). For coating thickness of 1.5 to 8 μm, processing limits were determined with maximum ablation energy linearly increasing with coating thickness and minimum ablation energy decreasing or increasing depending on the apparent coating density. Within applicable processing window of pulse rate and power setting, the operational ranges were determined for creating one-dimensional and two-dimensional surface patterns, requiring a higher laser energy for CNC compared to CNF coatings and yielding thinnest possible resolved patterns of 17 μm as determined by the laser spot diameter. The laser ablation under low energy corresponds to an increase in surface roughness and intensifies surface hydrophilicity, while the line patterns are able to pin water droplets with rising water contact angles up to 90°. Present feasibility study opens future possibilities for managing surface properties of nanocellulose coatings in applications where tuning of surface hydrophilicity is required.
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Affiliation(s)
- Pieter Samyn
- SIRRIS, Department of Innovations in Circular Economy and Renewable Materials, Gaston Geenslaan 8, B-3001 Leuven, Belgium.
| | - Joris Everaerts
- KULeuven, Department of Materials Engineering, Kasteelpark Arenberg 44 box 2450, B-3001 Leuven, Belgium
| | | | - Patrick Cosemans
- SIRRIS, Department of Innovations in Circular Economy and Renewable Materials, Gaston Geenslaan 8, B-3001 Leuven, Belgium
| | - Olivier Malek
- SIRRIS, Department of Manufacturing Systems and Technologies, Thor park 8027, B-3600 Genk, Belgium
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Fabrication of 3D Printed Polylactic Acid/Polycaprolactone Nanocomposites with Favorable Thermo-Responsive Cyclic Shape Memory Effects, and Crystallization and Mechanical Properties. Polymers (Basel) 2023; 15:polym15061533. [PMID: 36987315 PMCID: PMC10053012 DOI: 10.3390/polym15061533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 03/22/2023] Open
Abstract
In this work, 3D printed polylactic acid (PLA)/polycaprolactone (PCL) nanocomposites with favorable thermo-responsive cyclic shape memory effects (SMEs) and crystallization and mechanical properties were fabricated using a two-step method. First, an isocyanate-terminated PCL diol (PCL-NCO) was synthesized through the reaction between isocyanate groups of hexamethylene diisocyanate and active hydroxyl groups of PCL diol, and its physicochemical properties were characterized. A PLA/PCL blend with a PCL content of 50 wt% was fabricated via fused filament fabrication (FFF) 3D printing, and the influence of the PCL-NCO on the SME of the PLA/PCL blend was studied. The results indicated that the PCL-NCO significantly improved the cyclic shape memory performance of 3D printed PLA/PCL blends and was proved to be an effective interface compatibilizer for the blend system. Subsequently, the structure and properties of 3D printed PLA/PCL nanocomposites were investigated in detail by adding cellulose nanocrystal-organic montmorillonite (CNC-OMMT) hybrid nanofillers with different contents. It was found that the hybrid nanofillers greatly enhanced crystallization and mechanical properties of the nanocomposites due to adequate dispersion. The modification of the PLA/PCL blend and the preparation of the 3D printed nanocomposite can not only prolong the service life of a shape memory polymer product, but also broaden its application scope in advanced fields.
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Tom C, Narayana Sangitra S, Kumar Pujala R. Rheological Fingerprinting and Applications of Cellulose Nanocrystal Based Composites: A Review. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.121011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Huang C, Mou W, Li J, Liu Y. Extremely Well-Dispersed Zinc Oxide Nanofluids with Excellent Antibacterial, Antifungal, and Formaldehyde and Toluene Removal Properties. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chaojie Huang
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, Guangdong Province 510641, China
| | - Wenjie Mou
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, Guangdong Province 510641, China
| | - Jinglin Li
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, Guangdong Province 510641, China
| | - Ye Liu
- Department of Health Management, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong Province 510630, China
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Liu H, Zhang B, Zhou L, Li J, Zhang J, Chen X, Xu S, He H. Synergistic effects of cellulose nanocrystals‐organic montmorillonite as hybrid nanofillers for enhancing mechanical, crystallization, and heat‐resistant properties of three‐dimensional printed poly(lactic acid) nanocomposites. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25812] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hao Liu
- Xinyu Key Laboratory of Materials Technology and Application for Intelligent Manufacturing, School of Mechanical and Electrical Engineering Xinyu University Xinyu China
- School of Materials Science and Engineering South China University of Technology Guangzhou China
| | - Bao Zhang
- Xinyu Key Laboratory of Materials Technology and Application for Intelligent Manufacturing, School of Mechanical and Electrical Engineering Xinyu University Xinyu China
| | - Laihong Zhou
- Xinyu Key Laboratory of Materials Technology and Application for Intelligent Manufacturing, School of Mechanical and Electrical Engineering Xinyu University Xinyu China
| | - Jinbo Li
- Xinyu Key Laboratory of Materials Technology and Application for Intelligent Manufacturing, School of Mechanical and Electrical Engineering Xinyu University Xinyu China
| | - Jiacheng Zhang
- Xinyu Key Laboratory of Materials Technology and Application for Intelligent Manufacturing, School of Mechanical and Electrical Engineering Xinyu University Xinyu China
| | - Xiao Chen
- Xinyu Key Laboratory of Materials Technology and Application for Intelligent Manufacturing, School of Mechanical and Electrical Engineering Xinyu University Xinyu China
| | - Shunjian Xu
- Xinyu Key Laboratory of Materials Technology and Application for Intelligent Manufacturing, School of Mechanical and Electrical Engineering Xinyu University Xinyu China
| | - Hui He
- School of Materials Science and Engineering South China University of Technology Guangzhou China
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Chen XX, Liu JH, Kurniawan A, Li KJ, Zhou CH. Inclusion of organic species in exfoliated montmorillonite nanolayers towards hierarchical functional inorganic-organic nanostructures. SOFT MATTER 2021; 17:9819-9841. [PMID: 34698330 DOI: 10.1039/d1sm00975c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Montmorillonite (Mt) can readily undergo spontaneous delamination or exfoliation into nanolayers by various physical and chemical processes, which allow various strategies to engineer hierarchical functional inorganic-organic nanostructures. This review aims to discuss the recent progress in the liquid-phase exfoliation of Mt into individual nanolayers and the inclusion chemistry of functional organic species, ions, or molecules into the exfoliated Mt nanolayers to produce hierarchical functional inorganic-organic nanostructures. The exfoliation methods include mechanical force, ultrasonication, and intercalation-assisted exfoliation. Techniques for quickly assessing the quality of the exfoliated Mt nanolayers are still needed. Layer-by-layer (LbL) deposition, template, and evaporation-induced inclusions are examined to fabricate hierarchical Mt-organic species nanocomposites with unique functionalities and properties. The nanocomposites can be produced as multilayered porous films, brick-and-mortar coatings, hydrogels with a house-of-cards structure, core-shell materials, and hollow and mesoporous spherical nanocomposites, which exhibit significant potential for adsorption, catalysis, targeted delivery and controlled drug release, highly sensitive sensors, flame retardant coatings, and thermal energy storage and release (i.e. phase change materials). Finally, the challenges and prospects for the future development of hierarchical nanocomposites of exfoliated Mt nanolayers and organic species, particularly in hierarchical supramolecular nanostructured composites, are highlighted.
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Affiliation(s)
- Xi Xi Chen
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
- Qing Yang Institute for Industrial Minerals, You Hua, Qing Yang, Chi Zhou 242804, China
| | - Jia Hui Liu
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
- Qing Yang Institute for Industrial Minerals, You Hua, Qing Yang, Chi Zhou 242804, China
| | - Alfin Kurniawan
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Ke Jin Li
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Chun Hui Zhou
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
- Qing Yang Institute for Industrial Minerals, You Hua, Qing Yang, Chi Zhou 242804, China
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