Rheological and Thermal Behavior of Xanthan Gum Nanofluids Based on Hexagonal Boron Nitride Under High‐Pressure and High‐Temperature Conditions

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 8, 2025

ABSTRACT Xanthan gum (XG) is a biopolymer widely used in different industries, such as food, cosmetics, oil, among others, which requires modifications its properties. The present study aims to the thermal and rheological properties of XG nanofluids based on oxidized hexagonal boron nitride (hBN‐oxi) under high temperature pressure conditions. hBN‐oxi was obtained through liquid exfoliation then dispersed at concentrations. conductivity investigated temperatures, addition 6.0 wt% polymeric system increased up 12% 70°C. behavior steady‐state oscillatory flow measurements evaluate effect concentration temperatures pressures. At higher concentrations, these nanostructures induced yield stress fluid reaching value 12.8 Pa.s. Under shear rates, viscosity nanofluid decreased by only 16% 80°C, indicating effective mitigation viscosity. influence also suppressed with modified nanoparticles. This highlights that well‐designed formulations can significantly improve performance extreme

Language: Английский

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Predicting wax formation in High-Pressure conditions for condensate samples using Machine learning

Fuel, Journal Year: 2025, Volume and Issue: 394, P. 135183 - 135183

Published: March 25, 2025

Language: Английский

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Reinforced‐Concrete Inspired Porous Polymeric Membranes: Improved Mechanical Robust and Compaction Resistance via Incorporating Cellulose Nanofibers

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

ABSTRACT Membrane compaction is an ever‐present problem that can dramatically cause a flux drop during the practical application of porous polymeric membranes. Inspired by reinforced concrete structure, we incorporated one‐dimensional cellulose nanofibers (CNFs) into polyvinylidene fluoride (PVDF) matrix to form reinforced‐concrete‐like structure through interfacial hydrogen bonding in process NIPS. The resulting PVDF@CNF membrane demonstrates remarkable increase tensile strength 178.2% and hardness 123.4% as compared with pure PVDF membrane. Furthermore, anti‐compaction factor was improved 41%. enhanced resistance, along thinner skin layer hydrophilicity, brought about 2.6‐fold stable water also demonstrated excellent separation capabilities, achieving high rejection rates for BSA (93.5%) whey protein (96.2%), while exhibiting superior antifouling properties recovery ratio ( FRR ) from 61.0% 87.2%.

Language: Английский

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Utilizing “Reverse Compatibility” to Construct Interface Interlocking Structures to Improve the Mechanical Properties and Degradability of PBAT/HDPE and Application in Sewage Treatment

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

ABSTRACT Inspired by the mortise and tenon structure in ancient Chinese architecture, polymer composites with interfacial interlocking structures were developed utilizing “reverse compatibility” between polymers inorganic fillers, porous materials obtained for wastewater purification after degradation of composites. In detail, PBATT or HDPEF prepared poly (butylene adipate‐co‐terephthalate) (PBAT) high‐density polyethylene (HDPE) blended montmorillonite (MTT) Mica flour (MF) possessing opposite compatibility. Afterward, mass ratios 1/9 2/8 re‐blended to obtain PBATT/HDPEF a “zipper” “mortise tenon” interface structure. Firstly, compared PBAT/HDPE‐2/8 composites, PBATT/HDPEF‐2/8 exhibited excellent mechanical properties, including tensile strength enhanced 25% tear improved 14.1%. Moreover, formed fillers advanced hydrophilicity, water permeability, properties Remarkably, smaller contact angle (WAC) (65.9°), more considerable WAC difference within same period (6.1°), significant weight loss (4.5%) displayed than other samples. More interestingly, preparation cycle was shortened at conducive adsorption heavy metal ions.

Language: Английский

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Enhancing combustibility of coal tar via 2,5-dimethylfuran-mediated ring expansion: Mechanistic insights from diels-alder/friedel-crafts reactions

Fuel, Journal Year: 2025, Volume and Issue: 398, P. 135491 - 135491

Published: May 1, 2025

Language: Английский

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