J. Mater. Sci. Technol. ›› 2023, Vol. 132: 59-68.DOI: 10.1016/j.jmst.2022.05.036

• Research Article • Previous Articles     Next Articles

Superhydrophobic self-extinguishing cotton fabrics for electromagnetic interference shielding and human motion detection

Lei Liua, Zhewen Mab, Menghe Zhua, Lina Liub,*(), Jinfeng Daib, Yongqian Shic, Jiefeng Gaod, Toan Dinhe,f, Thanh Nguyene,f, Long-Cheng Tangg, Pingan Songe,h,**()   

  1. aCollege of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266061, China
    bSchool of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou 311300, China
    cCollege of Environment and Safety Engineering, Fuzhou University, Fuzhou 350116, China
    dSchool of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
    eCentre for Future Materials, University of Southern Queensland, Springfield 4300, Australia
    fSchool of Engineering, University of Southern Queensland, Springfield 4300, Australia
    gCollege of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of MoE, Hangzhou Normal University, Hangzhou 311121, China
    hSchool of Agriculture and Environmental Science, University of Southern Queensland, Springfield 4300, Australia
  • Received:2022-04-29 Revised:2022-05-28 Accepted:2022-05-30 Published:2023-01-01 Online:2022-06-17
  • Contact: Lina Liu,Pingan Song
  • About author:** Centre for Future Materials, University of Southern Queensland, Springfield 4300, Australia. E-mail addresses: pingan.song@usq.edu.au,pingansong@gmail.com (P. Song).
    * E-mail addresses: liulina198310@126.com (L. Liu),

Abstract:

Multifunctional intelligent fire-safe cotton fabric promises next-generation fire-fighting uniform and sensor applications. However, cotton fabrics' hygroscopicity and intrinsic flammability significantly impede their potential applications in industries. Herein, we report a superhydrophobic fireproof cotton fabric (PEI-APP-PEI-MXene) generated via sequential layer-by-layer deposition of polyethyleneimine (PEI), ammonium polyphosphate (APP), and titanium carbide (MXene), followed by hydrophobic treatment with silicone elastomer. Compared to untreated cotton, the treated cotton fabric with 10 polymolecular layers exhibits ∼43% and ∼42% reductions in the peak heat release rate and total heat release, respectively, a desired UL-94 V-0 rating, and a high limiting oxygen index (LOI) value of 39.5 vol.%. In addition to that, the treated fabrics displayed improved electromagnetic interference (EMI) shielding and motion-sensing abilities. The presented work provides a facile and effective surface modification approach to generate multifunctional cotton fabrics with promising practical applications.

Key words: Cotton fabric, Super-hydrophobicity, Flame retardancy, Electromagnetic interference shielding, Motion sensor, MXene