TY  - JOUR
PY  - 2022//
TI  - Serendipity discovery of fire early warning function of chitosan film
JO  - Carbohydrate polymers
A1  - Wang, Yong
A1  - Chen, Gongqing
A1  - Yang, Fangzhou
A1  - Luo, Zihao
A1  - Yuan, Bihe
A1  - Chen, Xianfeng
A1  - Wang, Liancong
SP  - e118884
EP  - e118884
VL  - 277
IS  - 
N2  - Transparent chitosan (CS) film is prepared and its application in high temperature/fire warning is discussed. NaCl-doped chitosan (CS-NaCl) film shows excellent performance in real-time temperature monitoring and fire warning. The temperature warning of CS-NaCl film can be triggered under approximately 50 °C, and it has a good repeatable warning performance under high-temperature conditions. The CS composite film exhibits an ultra-sensitive (0.4 s) warning under fire attacking. A possible electrical conduction and fire-alarm mechanisms are proposed. The addition of NaCl increases the number of charge carriers, which improves the ionic conductivity of the composite film. This study provides a possibility for the application of CS in the field of fire warning.<p />  <p>Language: en</p>
LA  - en
SN  - 0144-8617
UR  - http://dx.doi.org/10.1016/j.carbpol.2021.118884
ID  - ref1
ER  -