Effect of the fibre length on the mechanical anisotropy of glass fibre–reinforced polymer composites printed by Multi Jet Fusion DOI Creative Commons
Xiaojiang Liu, Wei Shian Tey, Pengfei Tan

и другие.

Virtual and Physical Prototyping, Год журнала: 2022, Номер 17(3), С. 734 - 748

Опубликована: Апрель 7, 2022

Mechanical anisotropy greatly influences the applications of materials printed by additive manufacturing techniques such as Multi Jet Fusion (MJF) and selective laser sintering. However, mechanical MJF-printed fibre–reinforced polymer composites has not been well understood. In this work, effect fibre length on performance glass polyamide 12 (GF/PA12) is systematically investigated. Both experimental simulation results confirm that longer fibres are in favour alignment powder spreading direction. The composite parts with exhibit higher porosity. When GFs an average 226 μm added, ultimate tensile strength modulus measured bed direction remarkably improved 51% 326%, respectively, compared those neat PA12 specimens. This work provides guidance for printing other high-strength composites.

Язык: Английский

4D printing of shape memory polymer composites: A review on fabrication techniques, applications, and future perspectives DOI
Muhammad Yasir Khalid, Zia Ullah Arif,

Reza Noroozi

и другие.

Journal of Manufacturing Processes, Год журнала: 2022, Номер 81, С. 759 - 797

Опубликована: Июль 25, 2022

Язык: Английский

Процитировано

231

4D printing of polymers: Techniques, materials, and prospects DOI
Peng Fu, Haimei Li, Jin Gong

и другие.

Progress in Polymer Science, Год журнала: 2022, Номер 126, С. 101506 - 101506

Опубликована: Янв. 5, 2022

Язык: Английский

Процитировано

126

Recent Advances in Shape Memory Polymers: Multifunctional Materials, Multiscale Structures, and Applications DOI

Lan Luo,

Fenghua Zhang,

Linlin Wang

и другие.

Advanced Functional Materials, Год журнала: 2023, Номер 34(14)

Опубликована: Дек. 24, 2023

Abstract Shape memory polymers (SMPs) are one of the primary directions in development modern high‐tech new materials, which integrated with sensing, actuation, information processing, and autonomous deformation. Here, multifunctional shape focused a detailed introduction to characteristics self‐deformation, self‐sensing, self‐healing, self‐learning is provided. Integrating other functional materials form polymer composites (SMPC), designing controlling material structure organization at microscale, thereby achieving more precise controllable effects expanding potential applications. Ultimately, it shown that SMPs their have wide range fascinating applications fields robotics, smart clothing, textiles, biomedical devices, wearable technology. will thus continue play significant role future deeper exploration.

Язык: Английский

Процитировано

92

Recent Advances in 4D Printing of Advanced Materials and Structures for Functional Applications DOI
Xue Wan, Zhongmin Xiao, Yujia Tian

и другие.

Advanced Materials, Год журнала: 2024, Номер 36(34)

Опубликована: Март 5, 2024

4D printing has attracted tremendous worldwide attention during the past decade. This technology enables shape, property, or functionality of printed structures to change with time in response diverse external stimuli, making original static alive. The revolutionary 4D-printing offers remarkable benefits controlling geometric and functional reconfiguration, thereby showcasing immense potential across fields, including biomedical engineering, electronics, robotics, photonics. Here, a comprehensive review latest achievements using various types materials different additive manufacturing techniques is presented. state-of-the-art strategies implemented harnessing 4D-printed are highlighted, which involve design, functionalities, applications. machine learning approach explored for also discussed. Finally, perspectives on current challenges future trends toward further development summarized.

Язык: Английский

Процитировано

56

4D Printing for Biomedical Applications DOI Creative Commons
Ebrahim Yarali, Mohammad J. Mirzaali,

Ava Ghalayaniesfahani

и другие.

Advanced Materials, Год журнала: 2024, Номер 36(31)

Опубликована: Апрель 5, 2024

Abstract 4D (bio‐)printing endows 3D printed (bio‐)materials with multiple functionalities and dynamic properties. materials have been recently used in biomedical engineering for the design fabrication of devices, such as stents, occluders, microneedles, smart 3D‐cell engineered microenvironments, drug delivery systems, wound closures, implantable medical devices. However, success printing relies on rational objects, selection materials, availability appropriate types external (multi‐)stimuli. Here, this work first highlights different stimuli, strategies (bio‐)printing. Then, it presents a critical review applications discusses future directions research exciting area, including vivo tissue regeneration studies, implementation reversible shape memory behaviors, creation fast shape‐transformation responses, ability to operate at microscale, untethered activation control, application (machine learning‐based) modeling approaches predict structure–property design–shape transformation relationships (bio)printed constructs.

Язык: Английский

Процитировано

55

4D printing: interdisciplinary integration of smart materials, structural design, and new functionality DOI Creative Commons
Zhiyang Lyu, Jinlan Wang, Yunfei Chen

и другие.

International Journal of Extreme Manufacturing, Год журнала: 2023, Номер 5(3), С. 032011 - 032011

Опубликована: Июнь 22, 2023

Highlights The key technological roadmap for implementation of 4D printing is comprehensively summarized. Material-structure-functionality integrated aspects in are emphasized. links between smart materials, 3D techniques, structures, stimulus, and new functionalities multidisciplinary applications established. General approaches to designing programmable structures introduced.

Язык: Английский

Процитировано

46

Advances and Applications of 4D-Printed High-Strength Shape Memory Polymers DOI Creative Commons
Jing Zhang,

Mingkun Xu,

Nan Zhang

и другие.

Deleted Journal, Год журнала: 2024, Номер 3(1), С. 200115 - 200115

Опубликована: Янв. 26, 2024

"Life" represents a distinctive attribute inherent to organisms in nature, evident their capacity actively adapt changes environment. In contrast the static and intricate constructs of additive manufacturing (AM), dynamic structure 4D printing (4DP) adeptly integrates AM technology, responsive mechanisms, external stimuli, imbuing it with semblance "life." This fusion significantly broadens its functional applications across biomedicine, actuators, metamaterials. The escalating demand diverse fields necessitates heightened criteria for 4DP, encompassing rapid response, multi-stimulus large shape change, specific mechanical properties (e.g., high strength, modulus) capable accommodating varying environmental conditions. recent years, memory polymers (SMPs) have garnered increasing attention among 4DP researchers due ease design preprogramming at molecular level, facilitating controlled transformations along predictable pathways. However, high-strength SMPs, as an indispensable part high-performance field, is full challenges because intrinsic raw materials are not well compatible principle printed configuration flexible enough. Consequently, this paper provides concise overview response mechanisms five prominent SMPs utilized 4DP: epoxy resin, poly(ether-ether-ketone), polyimide, polylactic acid, polyurethane. Additionally, delves into associated prospects, offering valuable insights potential value within domain 4DP.

Язык: Английский

Процитировано

26

Frontiers of Laser‐Based 3D Printing: A Perspective on Multi‐Photon Lithography DOI Creative Commons
Gordon Zyla, Maria Farsari

Laser & Photonics Review, Год журнала: 2024, Номер 18(7)

Опубликована: Март 26, 2024

Abstract Lasers are instrumental in enabling precise processing and fostering the development of new technologies. Particularly, ultrafast lasers, due to their unique interaction with matter, can achieve not only exceptional spatial precision but also meticulously determine degree modification. A prime example this is laser‐based 3D printing through multi‐photon lithography (MPL). This approach remarkably enables true structures at micro‐ nanoscale, without need for masks or cumbersome tools, simply by using computer‐aided designs. Owing these capabilities, MPL has emerged as a powerful manufacturing technique across various multidisciplinary fields. The ongoing growth MPL's utilization led notable advancements highly complex on different substrates, well improvements resolution throughput, novel photosensitive materials, which impressively facilitated expansion into broader fields over last few years. In perspective article, aim highlight recent trends MPL. current challenges will be explored, addressed ensure its further integration advanced Additive Manufacturing nanoscale. future perspectives opportunities discussed.

Язык: Английский

Процитировано

24

Artificial-goosebump-driven microactuation DOI Creative Commons
Mingchao Zhang, Aniket Pal,

Xianglong Lyu

и другие.

Nature Materials, Год журнала: 2024, Номер 23(4), С. 560 - 569

Опубликована: Фев. 9, 2024

Abstract Microactuators provide controllable driving forces for precise positioning, manipulation and operation at the microscale. Development of microactuators using active materials is often hampered by their fabrication complexity limited motion small scales. Here we report light-fuelled artificial goosebumps to actuate passive microstructures, inspired natural reaction hair bristling (piloerection) on biological skin. We use light-responsive liquid crystal elastomers as responsive skin move three-dimensionally printed polymer microstructures. When exposed a programmable femtosecond laser, elastomer generates localized goosebumps, resulting in actuation surrounding Such microactuation can tilt micro-mirrors controlled light reflection disassemble capillary-force-induced self-assembled microstructures globally locally. demonstrate potential application proposed system information storage. This methodology provides precise, opening new possibilities development micromachines.

Язык: Английский

Процитировано

21

Direct ink writing of programmable functional silicone‐based composites for 4D printing applications DOI
Zhiyang Lyu, J. Justin Koh, Gwendolyn J.H. Lim

и другие.

Interdisciplinary materials, Год журнала: 2022, Номер 1(4), С. 507 - 516

Опубликована: Июль 5, 2022

Abstract Polydimethylsiloxane (PDMS) has been widely used in flexible electronics, soft robotics, and bioelectronics. However, the fabrication of PDMS‐based devices mostly relied on conventional approaches, such as casting molding, thereby limiting their potential. Here we fabricate composites with programmable microstructures by direct ink writing realize practical functionalities four‐dimensional (4D) printing. The mechanical, thermomechanical magnetic properties three‐dimensional‐printed can be well tailored using carbon, metal, or ceramic functional fillers. By taking advantage printable, flexible, PDMS composites, demonstrate new 4D printing designing architectures, including magnetic‐field‐driven battery cases patchworks, arbitrary morphing structures. In particular, 4D‐printed batteries are constructed for first time, which actuated via external field. This study broadens paradigm prospective applications, implant batteries, biomimetic engineering, customized biomedical devices.

Язык: Английский

Процитировано

44