Novel shape-memory polyurethane fibers for textile applications

Sáenz-Pérez, Míriam; Bashir, Tariq; Laza, José Manuel; García-Barrasa, Jorge; Vilas, José Luis; Skrifvars, Mikael; León, L. M.

doi:10.1177/0040517518760756

Cited by 42 publications

(21 citation statements)

References 53 publications

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“…Furthermore, when controlling T g and T m , PU may express different thermal, mechanical and shape memory behaviors. 1,3 Recently, using smart or stimuli-responsive materials, known as SMPs, as the 3D-printing raw material has led to the development of an exciting new technology. Previous studies used shape memory polyurethane (SMPU) as the 3D-printing raw material, and research on 3D-printing functional material using SMP has become an important research area lately, with more studies in progress.…”

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confidence: 99%

Physical property of 3D-printed sinusoidal pattern using shape memory TPU filament

Kabir

Kim

Lee

2020

Textile Research Journal

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This study has investigated the physical properties of 3D-printable shape memory thermoplastic polyurethane (SMTPU) filament and its 3D-printed sinusoidal pattern obtained by fused deposition modeling (FDM) technology. To investigate 3D filaments, thermoplastic polyurethane (TPU) and SMTPU filament were examined by conducting infrared spectroscopy, x-ray diffraction (XRD), dynamic mechanical thermal analysis (DMTA), differential scanning calorimetry (DSC) and a tensile test. Then, to examine the 3D-printed sinusoidal samples, a sinusoidal pattern was developed and 3D-printed. Those samples went through a three-step heating process: (a) untreated state; (b) 5 min heating at 70°C, cooling for 30 min at room temperature; and (c) a repeat of step 2. The results obtained by the three different heating processes of the 3D-printed sinusoidal samples were examined by XRD, DMTA, DSC and the tensile test to obtain the effect of heating or annealing on the structural and mechanical properties. The results show significant changes in structure, crystallinity and thermal and mechanical properties of SMTPU 3D-printed samples due to the heating steps. XRD showed the increase in crystallinity with heating. In DMTA, storage modulus, loss modulus and the tan σ peak position also changed for various heating steps. The DSC result showed that the Tg for different steps of the SMTPU 3D-printed sample remained almost the same at around 51°C. The tensile property of the TPU 3D-printed sinusoidal sample decreased in terms of both load and elongation with increased heating processes, while for the SMTPU 3D-printed sinusoidal sample, the load decreased but elongation increased about 2.5 times.

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confidence: 99%

Physical property of 3D-printed sinusoidal pattern using shape memory TPU filament

Kabir

Kim

Lee

2020

Textile Research Journal

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“…In SMPs with increasing temperature above the glass transition, the polymer free volume increases, which leads to better transfer of moisture and heat to the outer side of clothing 161,164 . SMPs based on different polymers, including polylactic acid, keratin, 165 and polyurethane, can be used in making nanofibrous membranes 166 and yarn, 167–169 fabric finishing, 170,171 and developing 3D‐printed scaffolds and fibers 165 …”

Section: Shape Memory Based Adaptive Membranesmentioning

confidence: 99%

A review on emerging developments in thermal and moisture management by membrane‐based clothing systems towards personal comfort

Gorji

Mazinani

Gharehaghaji

2022

J of Applied Polymer Sci

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Enhanced heat and moisture management has become highly urgent to clothing systems due to the global need to personalize the ventilation process. As a significant sector of apparel industries, membrane‐based clothing systems offer protection and ventilation functionalities. This review aims at providing a new viewpoint on efforts to improve heat and moisture management in membrane‐based clothing systems according to the latest advances in this field. The study terminates with presenting a perspective on current challenges and opportunities for future research directions in personal thermal and moisture management technologies. In fact, membranes with different functionalities used in clothing systems such as photonic membranes with heating and cooling performances, unidirectional liquid transport membranes, waterproof‐breathable membranes, shape‐memory membranes, thermoregulating membranes, thermal conductive membranes and finally protective membranes are investigated. The essential functions associated to different categories of the investigated membranes along with the relationships between membrane structure and properties are presented.

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“…Sáenz-Pérez et al, on the other hand, used melt spinning to prepare different PU fibers with shape memory effect and producing plain knitted structures from them [40]. They found very high shape recovery ratios of mostly more than 99.9 % with glass transition temperatures around 37-38 °C for the self-prepared fibers and around 52 °C for a commercial material tested in comparison.…”

Section: Shape Memory Textiles Produced By Shape Memory Fibersmentioning

confidence: 99%

Shape memory textiles – technological background and possible applications

Ehrmann¹,

Ehrmann

2021

cdatp

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While shape memory alloys (SMAs) and shape memory polymers (SMPs) can already be found in diverse applications, shape memory textiles are less often used. Nevertheless, they are regularly investigated. Typical ways to produce shape memory textiles (SMTs) are introducing shape memory wires, printing shape memory polymers on them (“4D printing”), or using textile materials such as poly(lactic acid) (PLA) which show shape memory properties on their own. This review gives a brief overview of these technological possibilities and possible applications of shape memory textiles.

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Novel shape-memory polyurethane fibers for textile applications

Cited by 42 publications

References 53 publications

Physical property of 3D-printed sinusoidal pattern using shape memory TPU filament

Physical property of 3D-printed sinusoidal pattern using shape memory TPU filament

A review on emerging developments in thermal and moisture management by membrane‐based clothing systems towards personal comfort

Shape memory textiles – technological background and possible applications

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