Controlled Sequential Shape Changing Components by 3D Printing of Shape Memory Polymer Multimaterials

Yu, Kai; Ritchie, Alexander; Mao, Yiqi; Dunn, Martin L.; Hu, Qi

doi:10.1016/j.piutam.2014.12.021

Cited by 193 publications

(113 citation statements)

References 67 publications

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“…These materials can be fabricated using pre‐established techniques while having novel characteristics for specific applications. Traditional methods such as gas blowing or particulate leaching have been successful in scaffold fabrication, however, newer techniques such as extrusion molding and 3‐D printing may lead the future of porous stimuli–responsive materials …”

Section: Discussionmentioning

confidence: 99%

Porous shape memory polymers: Design and applications

Hasan

Nash

Maitland

2016

J Polym Sci B Polym Phys

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Porous shape memory polymers (SMPs) exhibit geometric and volumetric shape change when actuated by an external stimulus and can be fabricated as foams, scaffolds, meshes, and other polymeric substrates that possess porous three-dimensional macrostructures. These materials have applications in multiple industries such as textiles, biomedical devices, tissue engineering, and aerospace. This review article examines recent developments in porous SMPs, with a focus on fabrication methods, methods of characterization, modes of actuation, and applications.

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Section: Discussionmentioning

confidence: 99%

Porous shape memory polymers: Design and applications

Hasan

Nash

Maitland

2016

J Polym Sci B Polym Phys

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“…Some other investigations are based on materials that do not use any filler and the shape memory effect is achieved only by the polymer. This is the case of where seven epoxy polymers with different glass transition temperatures were used to create a functional gradient shape memory “helical thread” structure, where shape recovery is thermally triggered. The feasibility of using 3D printing technique to fabricate functional graded SMPs with both spontaneous and sequential shape recovery abilities was demonstrated.…”

Section: Uv Cured Smart Materialsmentioning

confidence: 99%

State‐of‐the‐Art and Future Challenges of UV Curable Polymer‐Based Smart Materials for Printing Technologies

Mendes‐Felipe

Oliveira

Etxebarria

et al. 2019

Adv Materials Technologies

233

168

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The one‐step printing of fully functional electronic devices is one of the main goals of additive manufacturing. In general, this approach is increasingly growing, being one of the key developments additive manufacturing processes based on ultraviolet curing. The main reasons for this increasing interest in UV curing based technologies are its advantages, such as fast curing at room temperature, space and energy efficiency, high‐resolution patterns, and solvent‐free formulations. Despite the important developments, some challenges remain with respect to improving UV curing process and, in particular, to obtain smart UV curable materials, many times based on the inclusion of specific nanoparticles in a UV curable polymer matrix. Thus, this paper reviews the recent developments in UV curable smart materials for printing technologies focusing on both materials and processes. The curing mechanisms and the main materials used in UV photocurable resins are reviewed as well as the main smart and multifunctional materials obtained based on them. Finally, a summary of the main achievement and the future needs are indicated. This review represents therefore a landmark for the development of a new generation of UV curable smart and multifunctional materials and solutions.

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“…Previous studies have reported this shape recovery phenomenon of highly deformed and buckled polymeric honeycomb structures gradually recovering back to their original overall shape only hours after unloading (Zhu and Mills 2000). Notably, various polymer inks available in the commercial inkjet 3D printing system have been reported as possessing a thermally responsive SME (Yu et al 2015).…”

Section: Introductionmentioning

confidence: 89%

Shape recovery effect of 3D printed polymeric honeycomb

Yap

Yeong

2015

Virtual and Physical Prototyping

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Polymeric honeycombs, with their lightweight, high stiffness-to-weight ratio, and welldeveloped energy absorption characteristics, have been widely used in engineering applications. In this work, we report the shape recovery effect in a 3D-inkjet-printed honeycomb core. Shape recovery effect, in which the honeycomb slowly recovers back to near its original shape, was observed after the release of compressive loading. Cyclic compression tests were carried out to study the shape recovery characteristics and factors affecting strain recovery in the 3D printed honeycombs. The factors such as honeycomb design shape, loading rate, and number of compressions were investigated. Flatwise compression tests were carried out on three different honeycomb shapes, namely hexagon, triangle, and circular, at three different loading rates. Three stages of shape recovery were identified and general conclusions on the factors affecting the shape recovery were proposed.

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Controlled Sequential Shape Changing Components by 3D Printing of Shape Memory Polymer Multimaterials

Cited by 193 publications

References 67 publications

Porous shape memory polymers: Design and applications

Porous shape memory polymers: Design and applications

State‐of‐the‐Art and Future Challenges of UV Curable Polymer‐Based Smart Materials for Printing Technologies

Shape recovery effect of 3D printed polymeric honeycomb

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