Mechanical Property and Thermal Stability of Epoxy Composites Containing Poly(ether sulfone)

이시은,; 박미선,; 정의경,; 이만영,; 이민경,; 이영석,

doi:10.7317/pk.2015.39.3.426

Cited by 2 publications

(2 citation statements)

References 24 publications

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“…Figure 4 shows thermograms of both pristine PES and Ag/Pd modified PES membranes. Pristine PES membranes are reported to decompose at around 500 • C [46]. The presence of Ag and Pd nanoparticles did not alter the structural integrity of the polymer, as there were no remarkable shifts in the decomposition temperature.…”

Section: Tgamentioning

confidence: 97%

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In Situ Generation of Fouling Resistant Ag/Pd Modified PES Membranes for Treatment of Pharmaceutical Wastewater

et al. 2022

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In this study, Ag and Pd bimetallic nanoparticles were generated in situ in polyethersulfone (PES) dope solutions, and membranes were fabricated through a phase inversion method. The membranes were characterized for various physical and chemical properties using techniques such as FTIR, SEM, AFM, TEM, EDS, and contact angle measurements. The membranes were then evaluated for their efficiency in rejecting EOCs and resistance to protein fouling. TEM micrographs showed uniform distribution of Ag/Pd nanoparticles within the PES matrix, while SEM images showed uniform, fingerlike structures that were not affected by the presence of embedded nanoparticles. The presence of Ag/Pd nanoparticles resulted in rougher membranes. There was an increase in membrane hydrophilicity with increasing nanoparticles loading, which resulted in improved pure water permeability (37–135 Lm2h−1bar−1). The membranes exhibited poor salt rejection (<15%), making them less susceptible to flux decline due to concentration polarization. With a mean pore radius of 2.39–4.70 nm, the membranes effectively removed carbamazepine, caffeine, sulfamethoxazole, ibuprofen, and naproxen (up to 40%), with size exclusion being the major removal mechanism. Modifying the membranes with Ag/Pd nanoparticles improved their antifouling properties, making them a promising innovation for the treatment of pharmaceutical wastewater.

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Section: Tgamentioning

confidence: 97%

“…Figure 4 shows thermograms of both pristine PES and Ag/Pd modified PES membranes. Pristine PES membranes are reported to decompose at around 500 °C [46].…”

Section: Tgamentioning

confidence: 99%

In Situ Generation of Fouling Resistant Ag/Pd Modified PES Membranes for Treatment of Pharmaceutical Wastewater

et al. 2022

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Interface reaction‐induced separated phase structure in compatible epoxy thermosetting blending for unexpected mechanical properties and multi‐thermosensitive devices

et al. 2021

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Unlike the traditional reaction-induced phase separation mechanism in incompatible polymer blending and the rigorous thermodynamic differenceinduced phase separation in compatible polymer blending, a new strategy for inducing separated phase in compatible thermosetting blending systems before cure was developed. Phase-separated structure in the blending of thermosetting epoxy/glutaric anhydride (GA)/zinc (II) acetylacetonate (ZAA) system (EP1) and epoxy/polyether amine (D230)/butylglycidyl ether (BGE) system (EP2) was constructed by in situ interface reaction between EP1 and EP2. High concentration ZAA gave rise to high viscosity of EP1 that brought large EP2 droplets in EP1/EP2 systems. The phase-separated structure was easily controlled by the formation of the polymer wall interface between EP1 and EP2.The synergistic effects of the barrier of wall interface and low diffusion behavior of high viscosity of EP1 could lead to the high conversion of epoxy groups in EP1/EP2, low levels of GA/D230 consumptions, and significant phase structure in EP1/EP2, which endowed the resulting EP1/EP2 with excellent mechanical property and good thermal property. The flexural strength, the impact strength and tensile strength of EP1/EP2 with large separated-phase reached 119 MPa, 28 kJ/m 2 , and 73 MPa, respectively, which were 34%, 12%, and 16% higher than that of high performance EP1 system. The resulting EP1/EP2 systems also showed good triple-shape memory effect owing to the phase-separated structure. It was significant for EP1/EP2 system to be used as multithermosensitive devices for fire early warning and monitoring detector, and high-security anticounterfeiting application.

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Mechanical Property and Thermal Stability of Epoxy Composites Containing Poly(ether sulfone)

Cited by 2 publications

References 24 publications

In Situ Generation of Fouling Resistant Ag/Pd Modified PES Membranes for Treatment of Pharmaceutical Wastewater

In Situ Generation of Fouling Resistant Ag/Pd Modified PES Membranes for Treatment of Pharmaceutical Wastewater

Interface reaction‐induced separated phase structure in compatible epoxy thermosetting blending for unexpected mechanical properties and multi‐thermosensitive devices

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