Mechanically strong hierarchical nanosystem for fire protection and electromagnetic interference shielding

被引:57
|
作者
Liu, Miao [1 ]
Chen, Kexin [1 ]
Shi, Yongqian [1 ]
Wu, Shijie [1 ]
Feng, Yuezhan [2 ]
Fu, Libi [3 ]
Gao, Jiefeng [4 ]
Tang, Longcheng [5 ]
Yang, Fuqiang [1 ]
机构
[1] Fuzhou Univ, Coll Environm & Safety Engn, 2 Xueyuan Rd, Fuzhou 350116, Peoples R China
[2] Zhengzhou Univ, Natl Engn Res Ctr Adv Polymer Proc Technol, Key Lab Mat Proc & Mold, Minist Educ, Zhengzhou 450002, Peoples R China
[3] Fuzhou Univ, Coll Civil Engn, 2 Xueyuan Rd, Fuzhou 350116, Peoples R China
[4] Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Peoples R China
[5] Hangzhou Normal Univ, Coll Mat, Key Lab Organosilicon Chem & Mat Technol, Minist Educ, Hangzhou 311121, Peoples R China
基金
中国国家自然科学基金;
关键词
Mechanical toughness; Fire safety; Electromagnetic interference shielding; PZM@CP; TPU-based nanocomposite; BORON-NITRIDE; THERMAL-STABILITY; FLAME-RETARDANT; GRAPHENE; NANOSHEETS; NANOCOMPOSITES; CONSTRUCTION; ENHANCEMENT; PERFORMANCE; FABRICATION;
D O I
10.1016/j.compositesb.2023.110795
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Interest in advanced multifunctional composite materials has generated extensive discussions on materials endowed with high fire-resistance, mechanical strength, and excellent electromagnetic interference (EMI) shielding. We designed a feasible and low-cost method for preparing mechanically robust thermoplastic polyurethane/triazine-rich polyphosphazene functionalized titanium carbide@copper phytate/carbon fiber fabric (TPU/PZM@CP/CF) nanocomposites with enhanced fire retardancy and EMI shielding performances. The as-prepared TPU/PZM@CP-2.0/CF demonstrated excellent mechanical toughness, with a tensile strength of 57.8 MPa. Additionally, this nanocomposite exhibited superior EMI shielding performances, with an EMI shielding effectiveness of 29.7 dB and a normal shielding effectiveness of 24.8 dB/mm, surpassing that of most other TPUbased nanocomposites. Furthermore, the thermal stability and fire resistance of the TPU/PZM@CP nanocomposites were significantly improved. For instance, the peak of heat release rate and the peak of smoke production rate of the TPU/PZM@CP-2.0 respectively decreased by 41.5% and 21.5%, compared to those of neat TPU. In this work, the simple preparation method and outstanding comprehensive performances of the mechanically strong multifunctional TPU/PZM@CP/CF have tremendous potential for applications in defense, smart electronic device and aerospace.
引用
收藏
页数:13
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