Ha, Yu-Mi Kim, Young-O Kim, Young-Nam Kim, Jaewoo Lee, Jae-Suk Cho, Jae Whan Endo, Morinobu Muramatsu, Hiroyuki Kim, Yoong Ahm Jung, Yong Chae 2024-01-19T19:02:13Z 2024-01-19T19:02:13Z 2021-09-04 2019-10-15 1359-8368 https://pubs.kist.re.kr/handle/201004/119448 In this study, boron-doped single-walled carbon nanotubes (SWCNTs) were synthesized by high-temperature heat treatment (1300 degrees 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 degrees 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. English ELSEVIER SCI LTD MECHANICAL-PROPERTIES COMPOSITE NANOFIBERS FUNCTIONALIZATION NANOPARTICLES COPOLYMERS DISPERSION Rapidly self-heating shape memory polyurethane nanocomposite with boron-doped single-walled carbon nanotubes using near-infrared laser Article 10.1016/j.compositesb.2019.107065 1 COMPOSITES PART B-ENGINEERING, v.175 COMPOSITES PART B-ENGINEERING 175 scie scopus 000488418800005 2-s2.0-85068169692 Engineering, Multidisciplinary Materials Science, Composites Engineering Materials Science Article MECHANICAL-PROPERTIES COMPOSITE NANOFIBERS FUNCTIONALIZATION NANOPARTICLES COPOLYMERS DISPERSION Carbon nanotube Boron-doping Polyurethane Thermoelectrics Photothermal