4D printing with robust thermoplastic polyurethane hydrogel-elastomer trilayers

Here we present a new 4D printing technique capable of producing a diverse range of trilayer constructs using commercial low-cost desktop 3D printers. This unique methodology permits the viable construction of dynamically robust and complex origami architectures for a new generation of active struct...

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Main Authors: Anna B. Baker, Simon R.G. Bates, Thomas M. Llewellyn-Jones, Laurie P.B. Valori, Michael P.M. Dicker, Richard S. Trask
Format: Article
Language:English
Published: Elsevier 2019-02-01
Series:Materials & Design
Online Access:http://www.sciencedirect.com/science/article/pii/S0264127518308943
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author Anna B. Baker
Simon R.G. Bates
Thomas M. Llewellyn-Jones
Laurie P.B. Valori
Michael P.M. Dicker
Richard S. Trask
author_facet Anna B. Baker
Simon R.G. Bates
Thomas M. Llewellyn-Jones
Laurie P.B. Valori
Michael P.M. Dicker
Richard S. Trask
author_sort Anna B. Baker
collection DOAJ
description Here we present a new 4D printing technique capable of producing a diverse range of trilayer constructs using commercial low-cost desktop 3D printers. This unique methodology permits the viable construction of dynamically robust and complex origami architectures for a new generation of active structures. The resulting creations transform from flat 2D parts to 3D structures through submersion in water and return to their original configuration through dehydration. This technique uses commercially available materials and printers to enable a 4D printing method that is more accessible and affordable than previous examples of hydration triggered 4D printing. This method yields a controlled and predictable actuation route and final shape, enabling it to be used for both simple and complex origami inspired designs, such as the tessellated waterbomb origami pattern, a design that has not previously been realised with 4D printing. These new designs demonstrate how the integration of multiple trilayers into a single 3D print enables through-thickness control of actuation and resulting formation of active structures with complexity beyond what has previously been achieved with 4D printing. Keywords: 4D printing, Hydrogels, Thermoplastic polyurethane, Trilayers, Origami, Active structures
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spelling doaj.art-49c64ebeb7e74100a48e9938c9f6fd7e2022-12-22T02:47:47ZengElsevierMaterials & Design0264-12752019-02-011634D printing with robust thermoplastic polyurethane hydrogel-elastomer trilayersAnna B. Baker0Simon R.G. Bates1Thomas M. Llewellyn-Jones2Laurie P.B. Valori3Michael P.M. Dicker4Richard S. Trask5Bristol Composites Institute (ACCIS), School of Civil, Aerospace and Mechanical Engineering (CAME), University of Bristol, Bristol BS8 1TR, UK; Mechanical Engineering, University of Bath, Claverton Down, Bath BA2 7AY, UKBristol Composites Institute (ACCIS), School of Civil, Aerospace and Mechanical Engineering (CAME), University of Bristol, Bristol BS8 1TR, UK; Mechanical Engineering, University of Bath, Claverton Down, Bath BA2 7AY, UK; Corresponding author.Bristol Composites Institute (ACCIS), School of Civil, Aerospace and Mechanical Engineering (CAME), University of Bristol, Bristol BS8 1TR, UK; Mechanical Engineering, University of Bath, Claverton Down, Bath BA2 7AY, UKMechanical Engineering, University of Bath, Claverton Down, Bath BA2 7AY, UKBristol Composites Institute (ACCIS), School of Civil, Aerospace and Mechanical Engineering (CAME), University of Bristol, Bristol BS8 1TR, UKBristol Composites Institute (ACCIS), School of Civil, Aerospace and Mechanical Engineering (CAME), University of Bristol, Bristol BS8 1TR, UK; Mechanical Engineering, University of Bath, Claverton Down, Bath BA2 7AY, UKHere we present a new 4D printing technique capable of producing a diverse range of trilayer constructs using commercial low-cost desktop 3D printers. This unique methodology permits the viable construction of dynamically robust and complex origami architectures for a new generation of active structures. The resulting creations transform from flat 2D parts to 3D structures through submersion in water and return to their original configuration through dehydration. This technique uses commercially available materials and printers to enable a 4D printing method that is more accessible and affordable than previous examples of hydration triggered 4D printing. This method yields a controlled and predictable actuation route and final shape, enabling it to be used for both simple and complex origami inspired designs, such as the tessellated waterbomb origami pattern, a design that has not previously been realised with 4D printing. These new designs demonstrate how the integration of multiple trilayers into a single 3D print enables through-thickness control of actuation and resulting formation of active structures with complexity beyond what has previously been achieved with 4D printing. Keywords: 4D printing, Hydrogels, Thermoplastic polyurethane, Trilayers, Origami, Active structureshttp://www.sciencedirect.com/science/article/pii/S0264127518308943
spellingShingle Anna B. Baker
Simon R.G. Bates
Thomas M. Llewellyn-Jones
Laurie P.B. Valori
Michael P.M. Dicker
Richard S. Trask
4D printing with robust thermoplastic polyurethane hydrogel-elastomer trilayers
Materials & Design
title 4D printing with robust thermoplastic polyurethane hydrogel-elastomer trilayers
title_full 4D printing with robust thermoplastic polyurethane hydrogel-elastomer trilayers
title_fullStr 4D printing with robust thermoplastic polyurethane hydrogel-elastomer trilayers
title_full_unstemmed 4D printing with robust thermoplastic polyurethane hydrogel-elastomer trilayers
title_short 4D printing with robust thermoplastic polyurethane hydrogel-elastomer trilayers
title_sort 4d printing with robust thermoplastic polyurethane hydrogel elastomer trilayers
url http://www.sciencedirect.com/science/article/pii/S0264127518308943
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