Study on modification of ZnNb2O6/PTFE microwave composites with LCP fiber

Dai, Jinhang; Liang, Fei; Zhang, Rong; Lü, Wenzhong; Fan, Guifen

doi:10.1016/j.ceramint.2021.10.016

Cited by 9 publications

(3 citation statements)

References 15 publications

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“…The maximum improvement in tensile strength was observed in the 5%LCP/CF/PA-PU composite, with an increase of 26.85%. The enhancement of the LCP in CF/PA-PU composites is mainly attributed to its 'in situ' composite enhancement effect, i.e., during the processing of composites, a microfiber structure is formed by the liquid crystal rod molecules in the blend matrix [24]. Furthermore, the hydrogen bonding between the aromatic copolyester LCP and the PA-PU copolymer promotes stability and compatibility within blends [29].…”

Section: Tensile Propertiesmentioning

confidence: 99%

“…In recent times, there has been a growing interest in the thermotropic liquid crystal polymer (LCP) as a self-reinforcing material, due to its ability to undergo in situ fibrillation under appropriate processing conditions [24]. Moreover, an aromatic copolyester LCP has been utilized in poly (vinylidene fluoride) (PVDF) composites to improve the tribological properties, taking advantage of the lubricating shear planes formed by the conjugated benzene rings of LCP [25].…”

Section: Introductionmentioning

confidence: 99%

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Tribological and Mechanical Applications of Liquid-Crystal-Polymer-Modified Carbon-Fiber-Reinforced Polyamide–Polyurethane Composites

Zhou

Wang

et al. 2023

Polymers

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An aromatic copolyester liquid crystal polymer (LCP) was introduced into carbon-fiber-reinforced polyamide–polyurethane (CF/PA-PU) composites through melt blending to improve the tribological properties of the composites. The effects of LCP on the mechanical, processing, and thermal properties of CF/PA-PU composites were compared to those of commonly-used graphite (Gr). The results showed that at 5 wt.% LCP content, the coefficient of friction (COF) was decreased by 16.06%, and the wear rate by 32.22% in the LCP/CF/PA-PU composite compared to the CF/PA-PU composite. Furthermore, using LCP instead of Gr showed significantly improved mechanical properties and reduced processing viscosity. The tensile strength of 5%LCP/CF/PA-PU composite could reach 99.08 MPa, while the equilibrium torque was reduced, being 26.85% higher and 18.37% lower than those of CF/PA-PU composite, respectively. The thermal stability of LCP/CF/PA-PU composites was also enhanced. The addition of 5 wt.% LCP to CF/PA-PU composite increased the initial decomposition temperature by 14.19% compared to CF/PA-PU. In sharp contrast, the addition of Gr increased equilibrium torque and actual processing temperature leading to processing difficulties and instability. This approach offers a novel strategy for tribological applications and tackles the problem of high viscosity in CF/PA-PU composites.

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Section: Tensile Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tribological and Mechanical Applications of Liquid-Crystal-Polymer-Modified Carbon-Fiber-Reinforced Polyamide–Polyurethane Composites

Zhou

Wang

et al. 2023

Polymers

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“…Numerous types of research have been reported on the surface modification of fillers via a variety of coupling agents [5,6] . For example, Li et al [7] introduced (Na 0.6 Li 0.4 ) 0.5 Nd 0.5 TiO 3 (NLNT) particles modified by C 14 H 19 F 13 O 3 Si (F8261) into PTFE and obtained the NLNT/PTFE composite.…”

Section: Introductionmentioning

confidence: 99%

Plasma fluorination modified CaTiO₃ for dielectric properties of PTFE-based composites

Zheng

Wang

2023

J. Phys.: Conf. Ser.

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The interface incompatibility between organic polymer and inorganic ceramic filler is a common phenomenon in polymer-based dielectric composites. In this paper, the Ar/CF4 plasma is used to modify the CaTiO3 particles, which improved the dispersion of CaTiO3 and its compatibility with polytetrafluoroethylene (PTFE). The findings demonstrate that growing argon (Ar) flow rate was beneficial to enhance discharge and increase fluorinated graft content. The modified CaTiO3/PTFE is uniformly distributed and has no serious agglomeration phenomenon, which effectively improves its dielectric characteristics. Modified CaTiO3/PTFE composite with 5 wt.% CaTiO3 has a dielectric constant of 2.32 whilst the dielectric loss reaches 2.8 × 10−3 at around 10 GHz.

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Polyethylene terephthalate composite and foam with superior mechanical properties from the synergistic simultaneous in situ fibrillation of liquid crystal polymer and polytetrafluoroethylene

Jiang,

Mi,

et al. 2024

J Mater Sci

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Study on modification of ZnNb2O6/PTFE microwave composites with LCP fiber

Cited by 9 publications

References 15 publications

Tribological and Mechanical Applications of Liquid-Crystal-Polymer-Modified Carbon-Fiber-Reinforced Polyamide–Polyurethane Composites

Tribological and Mechanical Applications of Liquid-Crystal-Polymer-Modified Carbon-Fiber-Reinforced Polyamide–Polyurethane Composites

Plasma fluorination modified CaTiO₃ for dielectric properties of PTFE-based composites

Polyethylene terephthalate composite and foam with superior mechanical properties from the synergistic simultaneous in situ fibrillation of liquid crystal polymer and polytetrafluoroethylene

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Study on modification of ZnNb2O6/PTFE microwave composites with LCP fiber

Cited by 9 publications

References 15 publications

Tribological and Mechanical Applications of Liquid-Crystal-Polymer-Modified Carbon-Fiber-Reinforced Polyamide–Polyurethane Composites

Tribological and Mechanical Applications of Liquid-Crystal-Polymer-Modified Carbon-Fiber-Reinforced Polyamide–Polyurethane Composites

Plasma fluorination modified CaTiO3 for dielectric properties of PTFE-based composites

Polyethylene terephthalate composite and foam with superior mechanical properties from the synergistic simultaneous in situ fibrillation of liquid crystal polymer and polytetrafluoroethylene

Contact Info

Product

Resources

About

Plasma fluorination modified CaTiO₃ for dielectric properties of PTFE-based composites