Facile fabrication of an F-POSS polymer-based liquid-repellent Cu mesh with excellent durability and self-cleaning performance

Luo, Guanzhou; Wang, Li; Li, Xinying; Yang, Kai; Luo, Yongle; Xu, Shanhui; Pi, Pihui

doi:10.1039/c9sm01748h

Cited by 8 publications

(4 citation statements)

References 34 publications

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“…[ 25 ] Furthermore, POSS can reduce the surface energy of the copolymer and enhance the hydrophobic properties. [ 26 ] The stable rigid structure formed by Si–O–Si contributes to the mechanical properties of the polymer. [ 18 ] Insulation paper contains POSS or POSS derivatives, the polarization rate is reduced, and the dielectric properties can be effectively improved.…”

Section: Introductionmentioning

confidence: 99%

Ladderlike Polyphenylsesquioxane‐Doped Cellulose Insulation Paper with Upgraded Mechanical Strength

Zeng

Wang

et al. 2023

Adv Eng Mater

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Ladderlike polyphenylsesquioxane (L‐PPSQ) with special planar ladder structure is significant to upgrade the mechanical strength of cellulose insulation paper. In this study, the effect of different content of L‐PPSQ on mechanical properties and dielectric properties of cellulose is first investigated by molecular simulation, and then insulation paper doped with L‐PPSQ is prepared for experimental verification. It is indicated in the simulation results that the elastic modulus, bulk modulus, and shear modulus of the cellulose are enhanced up to 36.82%, 27.96%, and 41.80%, respectively, when L‐PPSQ is added at 3 wt%, and the cellulose model with 3 wt% L‐PPSQ possesses the lowest dielectric constant. The reason is that L‐PPSQ can enhance the hydrogen bonding network of cellulose, weaken the degree of molecular chain motion, and strengthen the strength of molecular chains, which in turn manifests as the enhancement of mechanical strength. It is shown in the experimental results that the tensile strength and elongation at break of the composite insulation paper can be enhanced by 16.7% and 35.09% when the L‐PPSQ content is 3 wt%, which is consistent with the simulation results. The short‐term aging test shows that L‐PPSQ can also upgrade the mechanical strength of the insulation paper at high temperatures.

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Section: Introductionmentioning

confidence: 99%

Ladderlike Polyphenylsesquioxane‐Doped Cellulose Insulation Paper with Upgraded Mechanical Strength

Zeng

Wang

et al. 2023

Adv Eng Mater

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“…At present, many new hydrophobic studies have been applied to fabrics and metal substrates. For instance, preparation of fluorine‐containing polyssesquioxane (F‐POSS) and finishing on the fabric surface to obtain hydrophobic fabric with self‐repairing function [13]. The prepared microcapsule polydimethylsiloxane (PDMS) coating containing repair agent is coated on the metal substrate, which can have high temperature resistance and new hydrophobic properties [14].…”

Section: Introductionmentioning

confidence: 99%

A new type of lipophilic hydrophobic self‐repairing cellulose insulating paper developed with ST‐110/FAS/PTFE ternary system as coating substrate

Zeng,

Qin,

Wang

et al. 2023

High Voltage

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The moisture generated by the ageing of the oil‐paper insulating system can easily lead to the deterioration of the performance of the insulating paper. In order to alleviate the impact of moisture on the performance of the insulating paper, we developed a kind of lipophilic hydrophobic self‐repairing cellulose insulating paper (new insulating paper) based on the ternary system of polytetrafluoroethylene, fluorocarbon surfactant and fluorinated alkyl silane, and accelerated thermal ageing test for 45 days at 130°C was carried out. The experimental results show that the new insulating paper with excellent lipophilic property can realise hydrophobic self‐repairing through heat treatment after physical damage. The tensile strength and elongation at break of the new insulating paper increased by 5%–8% and 6.25%–27% respectively compared with the original cellulose insulating paper. At the end of ageing, the relative dielectric constant and dielectric loss factor of new insulating paper are 10.4% and 9.9% lower than that of the original cellulose insulating paper, while the breakdown voltage is 6.8% higher. The acid and moisture content produced during the ageing process of the insulating oil impregnated with new insulating paper are also less, indicating that the coating can delay the ageing of the insulating paper.

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“…Luo et al prepared an F-POSS polymer-based liquid-repellent Cu mesh that can sustain superhydrophobicity even after 500 cycles of sand abrasion or 1,000 times tape peeling test. 9 Zhang et al fabricated superamphiphobic surfaces by spraying fluorinated multi-walled carbon nanotubes dispersion and adhesives onto various substrates. It can sustain superhydrophobic and highly oleophobic properties after 40 cycles of sand abrasion.…”

Section: Introductionmentioning

confidence: 99%

“…The design of the micro‐/nano‐structure roughness following ex situ casting or deposition of low‐surface‐energy compound on the substrates or one step constituting the micro‐/nano‐structure roughness and the low‐surface‐energy layer are effective methods that are favored by engineering applications. Luo et al prepared an F‐POSS polymer‐based liquid‐repellent Cu mesh that can sustain superhydrophobicity even after 500 cycles of sand abrasion or 1,000 times tape peeling test 9 . Zhang et al fabricated superamphiphobic surfaces by spraying fluorinated multi‐walled carbon nanotubes dispersion and adhesives onto various substrates.…”

Section: Introductionmentioning

confidence: 99%

Heat‐resistant superamphiphobic robust surface by self‐assembled monolayer surface reaction

Liu

Kong

Mao

et al. 2021

Surface & Interface Analysis

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Superamphiphobic surfaces have been arousing great attention in recent years for improved durability in practical applications. In this study, composites of dual‐sized porous silicas of micro‐/nanoparticles and silicic acid binder were coated on the glassy substrate as the micro‐/nano‐structure, then 60 nm porous silica particles modified by 3‐aminopropyltriethoxysilane (APTS) were coated. With the aid of the efficient, rapid, and stoichiometric reaction of amino group and epoxy group, the monolayer low‐surface‐energy long perfluorinated chains self‐assembled in the surface. Field emission scanning electron microscope (FESEM) and atomic force microscopy (AFM) verified the concave–convex surface topological features. This surface realized super‐repellency to liquids (surface tension ranging from 72.0 to 27.2 mN/m). This surface sustains superamphiphobicity after 15 times of the tape tearing test. After soaking in base (pH = 14), acid (pH = 1), and n‐heptane for 20 days, this surface still holds superamphiphobicity. Its heat‐resistant ability is so outstanding that it keeps superamphiphobicity after drying for 3 h at 250°C.

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Facile fabrication of an F-POSS polymer-based liquid-repellent Cu mesh with excellent durability and self-cleaning performance

Abstract: A facile method that combines alkali-assisted oxidation and –SH chelation with a click chemistry reaction was employed to create an F-POSS polymer surface (fluorinated octavinyl polyhedral oligomeric silsesquioxane polymer)-based Cu mesh (F-POSS-OM).

Cited by 8 publications

References 34 publications

Ladderlike Polyphenylsesquioxane‐Doped Cellulose Insulation Paper with Upgraded Mechanical Strength

Ladderlike Polyphenylsesquioxane‐Doped Cellulose Insulation Paper with Upgraded Mechanical Strength

A new type of lipophilic hydrophobic self‐repairing cellulose insulating paper developed with ST‐110/FAS/PTFE ternary system as coating substrate

Heat‐resistant superamphiphobic robust surface by self‐assembled monolayer surface reaction

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