Novel timed and self-resistive heating shape memory polymer hybrid for large area and energy efficient application

Loeblein, Manuela; Bolker, Asaf; Ngoh, Zhi Lin; Li, Lanxin; Wallach, E. R.; Tsang, Siu Hon; Pawlik, Matthieu; Verker, Ronen; Atar, Nurit; Gouzman, I.; Teo, Edwin Hang Tong

doi:10.1016/j.carbon.2018.07.018

Cited by 21 publications

(15 citation statements)

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“…The samples were then mounted onto the glass slides and their DC resistances obtained by probing the two ends of the conductive Ag paint using a multimeter as detailed in section 3.2. As investigated in Loeblein et al's study, concentration of 3D-BN is proportional to material electrical sheet resistance (Table XIII) [26] and hence sample DC resistance (Table VIII), indicating that 3D-BNC consisting of 50 % 3D-BN 50 % 3D-C could have better electro-thermoacoustic performance than 3D-C despite its higher Cp due to higher electrical resistances resulting in more efficient Joule heating [106].…”

Section: D-bncmentioning

confidence: 83%

“…Its high thermal stability [170,171,175] also allows it to endure high temperatures, which is critical during higher power operations. Studies conducted on hybrid 3D boron nitride-graphene (3D-BNC) material show tunability of its electrical and Joule heating properties with material composition while retaining its high thermal conductivity (Figure 70) [26,106,185]. These results indicate the potential of 3D-BNC to utilize electrothermoacoustics more efficiently than previously studied carbon nanostructured materials.…”

Section: D-bncmentioning

confidence: 92%

“…A multitude of different carbon nanostructured materials have been discovered over the past 30 years CNTs, graphene and 3D-C were synthesized in 1991 [29], 2004 [30] and 2011 [31] respectively. The high thermal conductivity (200 -5000W•m -1 •K -1 ) [22,23] and low electrical resistance (2 -2200Ω) [33-35, 81, 86, 92, 94, 102, 103] of these carbon nanostructured materials sparked much interest and research on their potential in multiple applications, such as conducting films, conducting fillers, transistors, energy storage, adsorption, photocatalysts, membranes, electrodes, biotechnology and electromagnetic interference (EMI) shields [26,[104][105][106][107][108][109][110][111][112][113][114]. These carbon nanostructured materials also have a low fabricable material thickness (micrometer to nanometer), indicating a large surface contact area with their surrounding medium.…”

Section: Carbon Nanostructured Materialsmentioning

confidence: 99%

“…h-BN can be grown into its 3D form, 3D-BN, using TCVD with a sacrificial catalytic Ni template foam, similar to how graphene is grown on 3D-C, except that growth conditions and PMMA annealing differ due to their differing elements [143,186,187]. 3D-BNC of various concentrations were using recipes from [26] and [106]. Ni foam (110 ppi, 2 mm thickness, Latech Scientific Supply Pte.…”

Section: D-bncmentioning

confidence: 99%

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Application of three-dimensional graphene in sound generation via thermoacoustics

Ngoh¹

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Section: D-bncmentioning

confidence: 83%

Section: D-bncmentioning

confidence: 92%

Section: Carbon Nanostructured Materialsmentioning

confidence: 99%

Section: D-bncmentioning

confidence: 99%

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Application of three-dimensional graphene in sound generation via thermoacoustics

Ngoh¹

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“…Epoxy-based SMP is synthesised and infused with 3D-C foam using the previously reported approach. 156,187 Three chemicals are used for the SMP preparation: EPON 826, NGDE and Jeffamine. EPON 826 is the polymer resin that provides the shape memory properties to the polymer.…”

Section: Epoxy Smpmentioning

confidence: 99%

3D-C/shape memory polymer composite for space deployable applications

Shivakumar¹

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AcknowledgementsFirst and foremost, I would like to express my deepest gratitude to my supervisor, Associate Professor Teo Hang Tong Edwin, for giving me the opportunity to work on this research. I am incredibly grateful for his support, motivation, and guidance throughout my research. His guidance helped me in gaining the essential skills for carrying out the research and writing this thesis. I could not have imagined having a better advisor for my PhD. I would like to thank Dr Siu Hon Tsang for his constant input, encouragement and insightful comments. I am incredibly grateful for your assistance and suggestions throughout my project. My sincere thanks go to Dr Manuela Loeblein for her mentorship during the first year of my PhD. Thanks for teaching me the experimental skills and leading me in the right direction with your technical inputs. Also, I would like to express my sincere gratitude to our collaborator Dr Asaf Bolker and his colleagues Ms Nurit Atar, Dr Ronen Verker, Ms Mor Hala as well as Dr Irina Gouzman from Soreq NRC in Yavne, Israel, for their help and assistance with experimental works related to space materials. My sincere thanks to Dr Hongling Li and Dr Roland Tay for their guidance and input on my e ea ch. Special men ion o D Hongling Li illingne o help me in opic ela ed o chemi as well as for her constant support and advice. I would also like to thank my group members, especially

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Shape Memory Polyurethane Composite With Fast Response to Near‐Infrared Light Based on Tannic Acid–Iron and Dynamic Phenol‐Carbamate Network

Yong,

Liu,

Zhang

et al. 2024

Macromol. Rapid Commun.

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Intelligent materials derived from green and renewable bio‐based materials have garnered widespread attention recently. Herein, shape memory polyurethane composite (PUTA/Fe) with fast response to near‐infrared (NIR) light was successfully prepared by introducing Fe3+ into the tannic acid‐based polyurethane (PUTA) matrix through coordination between Fe3+ and tannic acid. The results show that the excellent NIR light response ability is due to the even distribution of Fe3+ filler with good photo‐thermal conversion ability. With the increase of Fe3+ content, the NIR light response shape recovery rate of PUTA/Fe composite films is significantly improved, and the shape recovery time is reduced from over 60 s to 40 s. In addition, the mechanical properties of PUTA/Fe composite film are also improved. Importantly, owing to the dynamic phenol‐carbamate network within the polymer matrix, the PUTA/Fe composite film can reshape its permanent shape through topological rearrangement, and show its good NIR light response shape memory performance. Therefore, PUTA/Fe composites with high content of bio‐based material (TA content of 15.1‐19.4%) demonstrate the shape memory characteristics of fast response to NIR light, so it will have great potential in the application of new intelligent materials including efficient and environmentally friendly smart photothermal responder.This article is protected by copyright. All rights reserved

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Novel timed and self-resistive heating shape memory polymer hybrid for large area and energy efficient application

Cited by 21 publications

References 66 publications

Application of three-dimensional graphene in sound generation via thermoacoustics

Application of three-dimensional graphene in sound generation via thermoacoustics

3D-C/shape memory polymer composite for space deployable applications

Shape Memory Polyurethane Composite With Fast Response to Near‐Infrared Light Based on Tannic Acid–Iron and Dynamic Phenol‐Carbamate Network

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