A novel water-soluble sizing agent that enhances the interface and tribological characteristics of CF/PPEK composites

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112170 - 112170

Published: Jan. 1, 2025

Language: Английский

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Synergistic cooperation of a Magnolol-based waterborne cross-linkable PEEK sizing agent and click chemistry to construct exceptional solvent-resistance and interfacial properties of CF/PEEK composites

Progress in Organic Coatings, Journal Year: 2024, Volume and Issue: 192, P. 108479 - 108479

Published: May 6, 2024

Language: Английский

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Preparation of an environmentally friendly water-soluble sizing agent and its application in CF/PPESK composites

Polymer, Journal Year: 2024, Volume and Issue: unknown, P. 127666 - 127666

Published: Sept. 1, 2024

Language: Английский

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Damage mechanism of interlayer interface of continuous carbon fiber-reinforced polyphthalazine ether sulfone ketone resin matrix composites: Multi-scale study method at extreme temperature

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 153860 - 153860

Published: July 9, 2024

Language: Английский

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CaO‐catalyzed simplified synthesis of fully bio‐based self‐cross‐linkable MB‐polyether ether ketone toward waterborne carbon fiber sizing agent to enhance the interfacial properties and solvent‐resistance of carbon fiber/polyether ether ketone composites

Polymer Composites, Journal Year: 2024, Volume and Issue: 45(16), P. 14982 - 14992

Published: July 20, 2024

Abstract Sizing treatment stands out as an indispensable part of actual carbon fiber reinforced polyether ether ketone (CF/PEEK) production for its simple operation and distinct enhancement effects, the recently reported novel waterborne self‐cross‐linkable PEEK derivative sizing agents have achieved tremendous attentions bolstering interfacial bonding CF/PEEK. Nevertheless, key polymer‐precursors utilized in related researches to date are majority rely on petroleum‐based reagents prepared through cumbersome toxic catalytic systems, which become a bottleneck future developments. In this research, sustainable‐minded approach was performed utilizing fully biogenic‐sourced materials. Specifically, magnolol 2,5‐furandicarboxylic‐acid derived 2,5‐bis(4‐fluorobenzoyl)‐furan were elaborate MB‐PEEK. Notably, incorporation CaO catalyst, possessing excellent water absorption properties, allowed eliminating highly azeotropic solvent, thereby achieving green synthetic process. The fastidiously designed full‐bio‐based MB‐PEEK agent conspicuously boosted performances Noteworthy, inherent mechanism during processing stage CF‐(MB‐PEEK)/PEEK encompass self‐crosslinking allyl groups toward stable crosslinked structures with unparalleled resistance solvents unorthodox robustness interphase. Among them, interlaminar shear strength sized‐CF/PEEK improved by 65.71% 55.09%. even after enduring 3 days solvent aging, mechanical integrity preserved at approximately 93%. Our study presents straightforward sustainable outstanding properties that show effect performance solvent‐resistance Highlights A cross‐linkable CF/PEEK prepared. Magnolol 2,5‐furandicarboxylic acid employed substituted reagent. catalyst used replace poisonous systems. ILSS, IFSS, bending significantly increased 55.09%, 65.71%, 34.14%. Treated composites remained over 93% week corrosion.

Language: Английский

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Preparation of composites with integrated thermal insulation and mechanical properties using mixture design and multi-objective optimization methods

Polymer, Journal Year: 2024, Volume and Issue: unknown, P. 127604 - 127604

Published: Sept. 1, 2024

Language: Английский

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Rheological characterization and synergistic energy absorption under fluid–solid interaction of shear thickening gel/3D angle interlocking composites

Polymer Composites, Journal Year: 2024, Volume and Issue: 45(10), P. 9088 - 9102

Published: April 24, 2024

Abstract This study reveals the impact resistance of shear thickening gel (STG) impregnated four‐layer regular angle interlocking fabrics (AIF) composites. The effects STG parameters, including reaction time, temperature, and ratio, on rheological characterization mechanical properties STG/AIF flexible composites were investigated. results show that increase in parameters accelerated formation BO crosslink bonds within STG. energy storage modulus increased by three orders magnitude for a temperature 230°C, time 9 h, ratio 12.5%. had an obvious effect. coupling effect AIF increases inter‐yarn friction. deformation fabric synergistically absorbed energy, absorption rate reached 95.6%. material surface was not significantly damaged after low‐velocity impact. showed excellent properties. Highlights A new high‐energy composite prepared. Increased promoted its internal reaction. B O atomic interactions enhance improve resistance.

Language: Английский

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A High-Temperature Resistant and Chemically Compatible Water-Soluble Sizing Agent for Improving the Interfacial Properties of Cf/Ppek Composites

Published: Jan. 1, 2025

Language: Английский

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Direct Imaging of the Organic–Inorganic Interfacial Transformation

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

The organic-inorganic interfacial nanostructures between fillers and the matrix play a crucial role in performance of polymer composites. Here we propose an situ cryogenic transmission electron microscope technique (cryo-TEM) approach to directly observe transformation toluene diisocyanate (TDI)-based polyurethane composite during its synthesis process. Elliptical protrusions growing radially outward from filler surface, which serve as critical intermediate interface layer, are observed by cryo-TEM, indicating that layer is formed through curing reaction prepolymer molecules anchored on surface. Both decreasing sizes adding coupling agents can enhance interactions. addition 0.05 wt % agent increases thickness 83.93 129.31 nm improves fracture toughness 75.1%. These findings provide new insights for rationally designing high-performance

Language: Английский

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Using mixture design experiments combined with a multi‐objective optimization method to prepare high‐strength, low‐friction m‐polyphthalazine ether sulfone ketone water‐lubricated composites

Polymer Composites, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Abstract To address the utilization needs of composites under unconventional lubrication conditions, this paper conducted a mixture design experiment utilizing m‐polyphthalazine ether sulfone ketone (m‐PPESK) as resin matrix, along with short‐cut carbon fibers (SCF), polytetrafluoroethylene (PTFE), and graphite (Gr) modified fillers. The mathematical models between each response value (including compressive strength, tensile strength (TS), coefficient friction dry water conditions [ μ ]) filler contents were constructed. impact fillers their synergistic interactions on properties was systematically studied. Combined multi‐objective optimization method, optimal formula m‐PPESK composite determined 70 wt% resin, 9 SCF, 10 PTFE, 11 Gr. Compared to pure optimized demonstrated 25.4% increase in TS, alongside 56.4% 55.9% reduction , respectively. Scanning electron microscopy energy dispersive spectroscopy analyses indicated that multicomponent could synergistically facilitate formation transfer film, thus improving tribological composites. Highlights High‐strength, low‐friction water‐lubricated prepared. increased by 25.4%. reduced 55.9%. regression equations obtained had good predictability. Gr effects properties.

Language: Английский

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