An overview of the latest research on the impact of 3D printing parameters on shape memory polymers

Ameen, Ahmed A; Takhakh, Ayad M.; Abdal‐hay, Abdalla

doi:10.1016/j.eurpolymj.2023.112145

Cited by 8 publications

(5 citation statements)

References 137 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Shape Memory Materials (SMM) are material structures that can modify their shape in response to an external stimulus [1][2][3][4]. By incorporating different materials, multi-material SMM can exhibit enhanced mechanical properties, improved shape recovery, and tailored responses to stimuli [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…The SMPs are made from a variety of polymeric materials including but not limited by thermoplastic polyurethane (TPU) [4], polyamide (PA) [5,8,14], polylactic acid (PLA) [4,20,21], polycaprolactone (PLC) [8]. Furthermore, SMPs include other materials, such as hydrogels [19] and foams [18].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, SMPs include other materials, such as hydrogels [19] and foams [18]. Blends of different polymeric materials [12] or the addition of fillers (e.g., particles and fibres) can also be used to modify the properties of SMPs, such as engineering a recovery mechanism, improving their thermal stability, increasing their strength and stiffness [1,4,18,22].…”

Section: Introductionmentioning

confidence: 99%

“…Depending on the number of components, the SMPs can be classified as single, double, triple, or multi-material systems [2,7,23]. However, regardless of the number of components, the SMPs' working principle is based on the dual-state, dualcomponent, and partial transition mechanism [2,4,[6][7][8]16,23]. In the first case, dual-state, the permanent shape is provided by the covalent bond of the polymeric chains, while the temporary shape is maintained by the chains' rearranged entanglements [20,21,24].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Multi-Material Shape Memory Polymers: Design Considerations and Implementation

2024

IJOMAM

View full text Add to dashboard Cite

Shape memory polymers (SMP) are material systems capable of changing shape in response to external stimuli. By integrating multiple materials in the same system, the shape SMPs' can produce multiple shape/geometrical changes proportional to the number of constituents. Multi-material Fused Filament Fabrication (FFF) introduced new development possibilities regarding SMPs. However, materials integration is limited due to the affinity of polymeric materials. This research proposes a design framework adapted for multi-material printing for lowcompatibility polymers to solve some of these limitations. This way, using some design principles for FFF and multi-material printing can integrate two or more materials into the same component. In the end, the principles were used to print and test eight TPU/PLA-based SMSs.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Multi-Material Shape Memory Polymers: Design Considerations and Implementation

2024

IJOMAM

View full text Add to dashboard Cite

show abstract

“…[35] However, prolonged exposure of SMPs to external tensile stress triggers a relaxation process, resulting in the irreversible plastic deformation of the sample due to the slippage and disentanglement of the polymer chains. [40][41][42]…”

mentioning

confidence: 99%

Synergizing Structural Stiffness Regulation with Compliance Contact Stiffness: Bioinspired Soft Stimuli‐Responsive Materials Design for Soft Machines

Ma,

Zhang,

Sun

et al. 2024

Adv Eng Mater

View full text Add to dashboard Cite

Stiffness regulation strategies endow soft machines with stronger functionality to cope with diverse application requirements, for example manipulating heavy items by improving structural stiffness. However, most programmable stiffness strategies usually struggle to preserve the inherent compliant interaction capabilities following an enhancement in structural stiffness. In this study, inspired by the musculocutaneous system, we propose a soft stimuli‐responsive material (SRM) by combining shape memory alloy (SMA) into compliant materials. By characterizing the mechanical performance, the flexural modulus increases from 6.6 to 142.4 MPa under the action of active stimuli, crossing two orders of magnitude, while Young’s modulus stays at 2.2 MPa during programming structural stiffness. This comparative result indicates that our SRMs can keep a lower contact stiffness for compliant interaction although structural stiffness increases. Then, we develop three diverse soft machines to show the application potential of this smart material, such as robotic grippers, wearable devices, and deployable mechanisms. By applying our materials, these machines possess stronger load‐bearing capabilities. Meanwhile, these demonstrations also illustrate the efficacy of this paradigm in regulating the structural stiffness of soft machines while maintaining their compliant interaction capabilities.This article is protected by copyright. All rights reserved.

show abstract

Recent Advances in the Additive Manufacturing of Stimuli‐Responsive Soft Polymers

Tariq,

Arif,

Khalid

et al. 2023

Adv Eng Mater

View full text Add to dashboard Cite

Stimuli‐responsive polymers (SRPs) are special types of soft materials, which have been extensively used for developing flexible actuators, soft robots, wearable devices, sensors, self‐expanding structures, and biomedical devices, thanks to their ability to change their shapes and functional properties in response to external stimuli including light, humidity, heat, pH, electric field, solvent, and magnetic field or combinations of two or more of these stimuli. In recent years, additive manufacturing (AM) aka three‐dimensional (3D) printing technology of these SRPs, also known as four‐dimensional (4D) printing, has gained phenomenal attention in different engineering fields, thanks to its unique ability to develop complex, personalized, and innovative structures, which undergo twisting, elongating, swelling, rolling, shrinking, bending, spiraling, and other complex morphological transformations. Herein, an effort has been made to provide insightful information about the AM techniques, type of SRPs, and their applications including, but not limited to tissue engineering, soft robots, bionics, actuators, sensors, construction, and smart textiles. This article also incorporates the current challenges and prospects, hoping to provide an insightful basis for the utilization of this technology in different engineering fields. It is expected that the amalgamation of 3D printing with SRPs would provide unparalleled advantages in different engineering arenas.This article is protected by copyright. All rights reserved.

show abstract

An overview of the latest research on the impact of 3D printing parameters on shape memory polymers

Cited by 8 publications

References 137 publications

Multi-Material Shape Memory Polymers: Design Considerations and Implementation

Multi-Material Shape Memory Polymers: Design Considerations and Implementation

Synergizing Structural Stiffness Regulation with Compliance Contact Stiffness: Bioinspired Soft Stimuli‐Responsive Materials Design for Soft Machines

Recent Advances in the Additive Manufacturing of Stimuli‐Responsive Soft Polymers

Contact Info

Product

Resources

About