Rapidly self-heating shape memory polyurethane nanocomposite with boron-doped single-walled carbon nanotubes using near-infrared laser

Title
Rapidly self-heating shape memory polyurethane nanocomposite with boron-doped single-walled carbon nanotubes using near-infrared laser
Authors
정용채김재우김영오하유미김영남Jae-Suk LeeJae Whan ChoMorinobu EndoHiroyuki MuramatsuYoong Ahm Kim
Keywords
CNT; polyurethane; boron-doping; photothermal; Thermoelectrics
Issue Date
2019-10
Publisher
Composites. Part B, Engineering
Citation
VOL 175, 107065
Abstract
In this study, boron-doped single-walled carbon nanotubes (SWCNTs) were synthesized by high-temperature heat treatment (1300  °C) with a boric acid precursor and SWCNTs instead of the conventional chemical doping process. Then, these boron-doped single-walled carbon nanotubes (B-SWCNTs) were added to polyurethane to prepare polyurethane nanocomposites having excellent thermal and mechanical properties. Changes in properties that occurred due to structural changes inside the composite were investigated as the added amount of nanofiller was increased. In particular, a near-infrared (NIR) laser (808  nm) was directly irradiated on the nanocomposite film to induce photothermal properties on the surface of the B-SWCNTs. In the case of the PU nanocomposite film with a filler content of 3  wt%, a self-heating film material that rapidly heated to 250  °C within 10  s was developed. The newly developed material can be applied to electronic devices and products as a heat-generating coating material, de-icing of airplane, a heat sink, for bio-sensing, etc., using a moulding process.
URI
http://pubs.kist.re.kr/handle/201004/69588
ISSN
1359-8368
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KIST Publication > Article
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