Article
Chemistry, Physical
Emila Brancewicz-Steinmetz, Jacek Sawicki, Paulina Byczkowska
Summary: This article explores the possibility of printing with PLA and TPU using a 3D printer in FDM technology, aiming to achieve the best bond strength. By testing the interface zone and pattern combinations of different filaments, the best printing parameters and materials layer application order were determined. The results show that TPU/PLA samples perform better than PLA/TPU samples.
Article
Biochemistry & Molecular Biology
Gabriel Murillo-Morales, Sivasamy Sethupathy, Meng Zhang, Lingxia Xu, Amirreza Ghaznavi, Jie Xu, Bin Yang, Jianzhong Sun, Daochen Zhu
Summary: This work presents a biotechnological approach using Bacillus ligniniphilus laccase to partially degrade alkali lignin and use it as a nucleating agent in a PLA/TPU blend. Results showed that enzymatically modified lignin significantly improved the elastic modulus and achieved a maximum biodegradability rate under soil burial. Moreover, the printing quality of the blend was satisfactory.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Pharmacology & Pharmacy
Linus Grossmann, Maximilian Kieckhoefer, Werner Weitschies, Julius Krause
Summary: Thermoplastic polyurethanes are versatile materials used in research, medicine, and pharmacy. This study explores the use of 3D printing to produce foldable objects from different thermoplastic polyurethane filaments. The shape memory behavior of the dosage forms is utilized to fold and package them. The unfolding time and dimensional recovery of the 3D printed dosage forms are investigated based on material properties and shape, aiming to evaluate their potential for sustained drug delivery or medical devices.
EUROPEAN JOURNAL OF PHARMACEUTICS AND BIOPHARMACEUTICS
(2022)
Article
Engineering, Manufacturing
M. Barletta, A. Gisario, M. Mehrpouya
Summary: Shape Memory Polymers (SMPs), particularly polylactic acid (PLA), are gaining attention for their excellent shape memory properties and potential as stress-absorbers. The activation temperature is found to be the most significant parameter to trigger the recovery of the initial shape in the shortest possible time.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Materials Science, Multidisciplinary
Fangfang Wang, Feixiang Luo, Yuanxin Huang, Xiaoshan Cao, Chao Yuan
Summary: This article proposes an efficient and economical 4D printing method that allows for prompt shape change under heat stimulus. By optimizing FDM processing parameters, complex 3D structures with flexibility and high fidelity can be directly constructed, significantly reducing construction time and process complexity.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Materials Science, Textiles
Jing Liu, Shouxiang Jiang
Summary: Three-dimensional printing on textile substrates is a promising method to create objects with tailored mechanical properties. In this study, PLA and TPU are extruded onto polyester fabric and their wearable properties are examined. The results show that printed PLA has better washing resistance than printed TPU, making it a more suitable material for wearable applications.
JOURNAL OF INDUSTRIAL TEXTILES
(2023)
Review
Engineering, Manufacturing
Pratiksha Awasthi, Shib Shankar Banerjee
Summary: This review article summarizes the latest advancements in FDM 3D printing of thermoplastic elastomeric materials, focusing on the development of FDM compatible new materials and improving printability. Strategies to overcome defects in 3D printed TPE parts and enhance mechanical properties are provided, along with discussion on future prospects in this rapidly progressing field.
ADDITIVE MANUFACTURING
(2021)
Article
Automation & Control Systems
Iman Salimi NezhadnAff, Mohammad Golzar, Amir Hossein Behravesh, Shahaboddin Zare
Summary: 4D printing of flat self-bending structures using hinges enables the creation of complex 3D shapes. This paper proposes a model to predict the shape-shifting behavior and magnitude of the hinges, which shows good agreement with experimental results.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Martin Adamek, Jiri Mlcek, Nela Skowronkova, Magdalena Zvonkova, Miroslav Jasso, Anna Adamkova, Josef Skacel, Iva Buresova, Romana Sebestikova, Martina Cernekova, Martina Buckova
Summary: This paper discusses the use of 3D fused deposition modeling (FDM) to fabricate capillaries for low-cost gas sensors. The 3D printed FDM capillaries show potential in increasing the selectivity of these sensors. Different capillary designs with varying lengths were tested using various samples including alcohol, seafood, chicken thigh meat, nail polish remover, and gas from a gas lighter. The results demonstrate the impact of capillary parameters and carrier air flow on the output signal of the sensors. The 3D printed FDM capillaries allow for characterization of the output response in the time domain.
Article
Polymer Science
Ming-Hsien Hsueh, Chao-Jung Lai, Cheng-Feng Chung, Shi-Hao Wang, Wen-Chen Huang, Chieh-Yu Pan, Yu-Shan Zeng, Chia-Hsin Hsieh
Summary: This study found that the printing and raster angles have an impact on the tensile properties of polylactic acid (PLA) materials, while UV curing can enhance brittleness and reduce elongation. Different effects were observed on tensile strength and modulus of specimens printed with different parameters after UV curing.
Article
Polymer Science
Abdullah H. Mohammed, Nikolina Kovacev, Amr Elshaer, Ammar A. Melaibari, Javed Iqbal, Hany Hassanin, Khamis Essa, Adnan Memic
Summary: Fused Deposition Modelling (FDM) 3D printers have gained popularity in the pharmaceutical and biomedical industries. This study developed a new biomaterial filament, PLA/CPO, using wet solution mixing and extrusion. The filaments were characterized and the findings showed changes in viscosity, microstructure, and mechanical properties with varying CPO content. The PLA/CPO filament with 6% CPO showed acceptable surface morphology and strength, making it suitable for 3D printing applications such as bone scaffolds.
Article
Chemistry, Physical
Misba Amin, Mohit Singh, K. R. Ravi
Summary: The study introduces a simple and reliable method for fabricating superhydrophobic surfaces of PLA using FDM 3D printing without the need for nanoparticles. The PLA samples produced show excellent non-wetting properties after chemical etching and coating with low surface energy material. The study explores the impact of 3D printing roughness, surface topology, and chemical etching on the wetting properties of PLA, and highlights the crucial outcome of fabricating superhydrophobic surfaces using FDM 3D printing and low surface energy material without nanoparticles.
APPLIED SURFACE SCIENCE
(2023)
Article
Polymer Science
Ming-Hsien Hsueh, Chao-Jung Lai, Shi-Hao Wang, Yu-Shan Zeng, Chia-Hsin Hsieh, Chieh-Yu Pan, Wen-Chen Huang
Summary: FDM technology is widely used in various industries to manufacture complex geometries and internal structures. The study focused on characterizing the mechanical properties of PLA and PETG materials under different loading conditions, showing that varying printing temperatures and speeds can affect the performance of the materials.
Article
Polymer Science
Maciej Kujawa, Julia Glowacka, Wojciech Pawlak, Bogna Sztorch, Daria Pakula, Milosz Frydrych, Justyna Sokolska, Robert E. Przekop
Summary: This study investigates the use of MoS2 as a modifier for PLA filaments in the FDM/FFF technique. It was found that the longitudinal filling pattern significantly increased the tensile strength by 49% and the addition of 0.5% MoS2 caused a significant increase of up to 457% in the wear indicator. Furthermore, the use of the additive improved processing properties, interlayer adhesion, and mechanical strength, resulting in improved print quality.
Article
Engineering, Manufacturing
Dejana Pejak Simunec, Michael Breedon, Faizan U. R. Muhammad, Louis Kyratzis, Antonella Sola
Summary: This study investigates the suitability of a composite material containing TPU, CB, PVDF, and BaTiO3 for sensor applications without electrical poling. Nonpoling treatments including surface texturing of BaTiO3 particles and the addition of TPPC to the composite were evaluated to enhance the sensor response. The results show that the treated sensors exhibit significant electrical anisotropy, with greater electrical waveforms observed when the electrodes align parallel to the raster direction.
ADDITIVE MANUFACTURING
(2023)
