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Toward Multi-Functional Road Surface Design with the Nanocomposite Coating of Carbon Nanotube Modified Polyurethane: Lab-Scale Experimentsopen access
- Authors
- Yum, Sang-Guk; Yin, Huiming; Jang, Sung-Hwan
- Issue Date
- Oct-2020
- Publisher
- MDPI
- Keywords
- multi-functional road coating; carbon nanotubes; electrical conductivity; hydrophobicity; freezing temperature sensing; Joule heating
- Citation
- Nanomaterials, v.10, no.10, pp 1 - 7
- Pages
- 7
- Indexed
- SCIE
SCOPUS
- Journal Title
- Nanomaterials
- Volume
- 10
- Number
- 10
- Start Page
- 1
- End Page
- 7
- ISSN
- 2079-4991
2079-4991
- Abstract
- A novel multi-functional road surface system is designed to improve safety, the efficiency of traffic flow, and environmental sustainability for future transportation systems. The surface coating, preforming temperature detection with heating element and hydrophobic features, were fabricated with a nanocomposite consisting of carbon nanotube (CNT) modified polyurethane (PU). The CNT/PU coating showed higher electrical conductivity as well as enhanced hydrophobic properties as the CNT concentration increased. The multifunctional properties of CNT/PU coatings were investigated for use in freezing temperature sensing and heating. The CNT/PU coatings showed high temperature sensitivity in the freezing temperature range with a negative temperature coefficient of resistance. In addition, the CNT/PU coatings had excellent heating performance due to the Joule heating effect. Therefore, the proposed CNT/PU coatings are promising for use as multifunctional road coating materials for detection of freezing temperature and deicing by self-heating.
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Related Researcher
- Jang, Sung Hwan
- ERICA 공학대학 (DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING)