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@article{ART002958856},
author={Xu Qi and Liu Yang and Chen Yu and Zhang Zhaoyang and Wei Yan Yan},
title={Preparation and properties of Joule thermal effect self-healing polyurethane},
journal={Carbon Letters},
issn={1976-4251},
year={2022},
volume={32},
number={1},
pages={217-228},
doi={10.1007/s42823-021-00269-8}

TY - JOUR
AU - Xu Qi
AU - Liu Yang
AU - Chen Yu
AU - Zhang Zhaoyang
AU - Wei Yan Yan
TI - Preparation and properties of Joule thermal effect self-healing polyurethane
JO - Carbon Letters
PY - 2022
VL - 32
IS - 1
PB - Korean Carbon Society
SP - 217
EP - 228
SN - 1976-4251
AB - Carbon nanotubes (CNTs) were added into the self-healing polyurethane materials as conductive filler, the mass fraction of carbon nanotubes was adjusted, and 1% polyaniline was doped. The conductive self-healing polyurethane composites with different carbon nanotubes content (PU)-1/3/5/8/10 were prepared, and analyzed and tested. The result shows that the permeability threshold value of the composite material is 8wt%, and the comprehensive performance of the composite material PU-8 is the best; the resistance of PU-8 is 1278Ω, PU-8P has a resistance of 1400Ω; using an infrared camera, it can be seen that the material can reach 143.3 °C under the DC current of 0.1A, reaching the temperature condition when the material is repaired; the swelling test shows that the PU-8P equilibrium swelling rate is 177%, the gel content is 52.67%, and there is no dissolution in dimethyl sulfoxide. Solvent stability is better than PU-8;DSC test shows that the glass transition temperature of the soft segment of PU-8P is 43 °C, and the glass transition temperature of the hard segment is − 55 °C, which is not much different from that of PU-8; TG test shows that the epitaxial starting temperature of PU-8P is 365 °C; the observation photo is magnified by a stereo microscope at ten times and the PU-8P sample is cut of in the middle at room temperature, applying a constant voltage of 30 V, the cracks disappeared. The material cracks realized self-healing with electricity, and the repair efficiency reached 20.5%.
KW - Self-repairing polyurethane;Acylhydrazone bond;Carbon nanotube;Electric heating
DO - 10.1007/s42823-021-00269-8
ER -

Xu Qi, Liu Yang, Chen Yu, Zhang Zhaoyang and Wei Yan Yan. (2022). Preparation and properties of Joule thermal effect self-healing polyurethane. Carbon Letters, 32(1), 217-228.

Xu Qi, Liu Yang, Chen Yu, Zhang Zhaoyang and Wei Yan Yan. 2022, "Preparation and properties of Joule thermal effect self-healing polyurethane", Carbon Letters, vol.32, no.1 pp.217-228. Available from: doi:10.1007/s42823-021-00269-8

Xu Qi, Liu Yang, Chen Yu, Zhang Zhaoyang, Wei Yan Yan "Preparation and properties of Joule thermal effect self-healing polyurethane" Carbon Letters 32.1 pp.217-228 (2022) : 217.

Xu Qi, Liu Yang, Chen Yu, Zhang Zhaoyang, Wei Yan Yan. Preparation and properties of Joule thermal effect self-healing polyurethane. 2022; 32(1), 217-228. Available from: doi:10.1007/s42823-021-00269-8

Xu Qi, Liu Yang, Chen Yu, Zhang Zhaoyang and Wei Yan Yan. "Preparation and properties of Joule thermal effect self-healing polyurethane" Carbon Letters 32, no.1 (2022) : 217-228.doi: 10.1007/s42823-021-00269-8

Xu Qi; Liu Yang; Chen Yu; Zhang Zhaoyang; Wei Yan Yan. Preparation and properties of Joule thermal effect self-healing polyurethane. Carbon Letters, 32(1), 217-228. doi: 10.1007/s42823-021-00269-8

Xu Qi; Liu Yang; Chen Yu; Zhang Zhaoyang; Wei Yan Yan. Preparation and properties of Joule thermal effect self-healing polyurethane. Carbon Letters. 2022; 32(1) 217-228. doi: 10.1007/s42823-021-00269-8

Xu Qi, Liu Yang, Chen Yu, Zhang Zhaoyang, Wei Yan Yan. Preparation and properties of Joule thermal effect self-healing polyurethane. 2022; 32(1), 217-228. Available from: doi:10.1007/s42823-021-00269-8

Xu Qi, Liu Yang, Chen Yu, Zhang Zhaoyang and Wei Yan Yan. "Preparation and properties of Joule thermal effect self-healing polyurethane" Carbon Letters 32, no.1 (2022) : 217-228.doi: 10.1007/s42823-021-00269-8