Nonwoven carbonized viscose mat for outstanding electromagnetic shielding, fast electrical heating and fire alarm
Source abstract
Abstract
Disposable face towel derived amorphous carbon prepared by annealing for broad and exacting applications in electromagnetic shielding, electrical heating, etc. This mat with 3D conductive network formed by nonwoven viscose fiber structure gives an outstanding electromagnetic shielding performance of 30 dB and 8161 dB/(g/cm 2 ) at a thickness of 0.168 mm in the frequency range of 0.3–3.0 GHz. In addition, the as prepared mat presents excellent temperature & strain sensing with exceptional sensitivity (BS = 5.5%), and favorable flexibility (1000 bending cycles without fracture). Moreover, the mat provides well Joule heating performance, and the heating temperature can reach over 60°C in 32 seconds under 0.25 A current. More interestingly, the mat shows excellent fire alarm with a fast response (84 ms) and high operating temperature (>500°C). This method provides a simple and low-cost new method for radiation protection, temperature detection, fire alarm and other fields.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Advanced Sensor and Energy Harvesting Materials · Fiber-reinforced polymer composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Textiles (International Silk Institute), Key Laboratory of Advanced Textile Material S and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, Zhejiang Province, China
Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, PR China
Zhejiang Xinhai Textile Co. LTD, Jinhua, Zhejiang Province, China
Funding
Postdoctoral Foundation of Zhejiang Sci-tech University Tongxiang Research Institute · National Natural Science Foundation of China · China Postdoctoral Science Foundation · Public Welfare Project of Zhejiang Province
References (52)
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