Covalent synthesis of 3-chloropropyltrimethoxysilane onto para-aramid nanofibers for TPU composites: Flame retardancy, toxicity reduction, and mechanical property

Liu, Wei; Chen, Wenjiao; Dong, Huixin; Piao, Junxiu; Ren, Jinyong; Wang, Yaofei; Wang, Yaxuan; Feng, Tingting; Jiao, Chuanmei; Chen, Xilei

doi:10.1016/j.mtcomm.2022.103355

Cited by 5 publications

(2 citation statements)

References 26 publications

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“…[5][6][7] The strength of TPU fiber can indeed be improved via a small amount of filler introduced, yet it is still hard to achieve the conductive property. [8][9][10] On the contrary, adding enormous amounts of conductive Pengxin He and Haihong Pu contributed equally to this study.…”

Section: Introductionmentioning

confidence: 99%

“…To realize the enhancement and conductivity, a series of inorganic nanomaterials, such as carbon nanotubes (CNT), graphene, or metal nanoparticles, have been used as the functional components filled into the TPU fiber 5–7 . The strength of TPU fiber can indeed be improved via a small amount of filler introduced, yet it is still hard to achieve the conductive property 8–10 . On the contrary, adding enormous amounts of conductive particles to achieve electrical conductivity will seriously affect the mechanical properties of TPU fiber 11 …”

Section: Introductionmentioning

confidence: 99%

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CNTs‐coated TPU/ANF composite fiber with flexible conductive performance for joule heating, photothermal, and strain sensing

et al. 2023

J of Applied Polymer Sci

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Flexible and highly conductive fiber has attracted considerable attention with its massive potential in functional fabric, stretchable circuits, and wearable electronic devices. Herein, we prepared a novel secondary structure composite fiber based on aramid nanofibers (ANF)-reinforced thermoplastic polyurethane (TPU) fiber accompanied by carbon nanotube (CNT)-coated on its surface. The composite fibers' dispersibility, micromorphology, and application were systematically investigated. The TPU/ANF-0.5 wt% sample showed a robust reinforcing effect, as Young's modulus and tensile strength reached 17.2 and 20.2 MPa, respectively. Meanwhile, the conductive coating layer in the outer frame was formed via a TPU solution with 10 wt% CNT content, which gives the fiber excellent flexible electrical conductivity. Such a unique structural design enables the fiber to be closely attached to human skin and monitor human movement. In addition, this TPU/ANF@CNT composite fiber can also be used for light and electric heating. The photothermal equilibrium temperature can reach 120 C in 50 s, and the electrothermal equilibrium temperature increases to 62 C under 30 V. In summary, this secondary structure composite fiber with excellent electrical and mechanical properties might have great practical application potential in wearable electronic devices.

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