Hydrothermally synthesized ZnO-RGO-PPy for water-borne epoxy nanocomposite coating with anticorrosive reinforcement

Zhu, Qingsong; Zhao, Yao; Miao, Baoji; Abo‐Dief, Hala M.; Qu, Muchao; Pashameah, Rami Adel; Xu, Ben Bin; Huang, Mina; Algadi, Hassan; Liu, Xianhu; Guo, Zhanhu

doi:10.1016/j.porgcoat.2022.107153

Cited by 40 publications

(18 citation statements)

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“…Epoxy resins are widely used as thermosetting adhesive materials and conductive substrates in the aerospace industry, printed circuit boards, and lead-free soldering applications [49][50][51][52] due to their excellent properties, such as low curing shrinkage, desirable adhesion, heat resistance, and excellent mechanical properties. [53][54][55] Yim et al 56 have invented epoxy resin-based ACAs for attaching flip-chips to glass substrates, exhibiting desirable electrical conductivity and mechanical properties. Zhihong et al 57 have investigated the electrical conductivity of Ag/Cu-coated particles filled into epoxy resin and determined the optimum filler concentration to be 12 vol%.…”

Section: Introductionmentioning

confidence: 99%

Shell structure control of monodisperse polystyrene‐silver composite microspheres and synthesis of epoxy resin‐based anisotropic conductive adhesives

Liu

et al. 2023

Polymers for Advanced Techs

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Monodisperse polystyrene-silver (PS-Ag) composite microspheres were used to enhance the electrical conductivity of epoxy resin-based anisotropic conductive adhesives (ACAs). Specially designed PS-Ag composite microspheres were used as conductive elements to construct anisotropic conductive arrays. In addition, the surface microstructure and morphology of PS-Ag composite microspheres were controlled by adjusting the silver precursor concentration and implemented electroless plating method. The size and conductivity of the final composite microspheres used for ACAs were 2.572 μm and 81,967 S cm À1 , respectively. In addition, diglycidyl ether of bisphenol-A (DGEBA) epoxy resin and polyamide resin were used as the matrix resin and curing agent, respectively, to predict the optimum curing process parameters based on curing kinetics. Based on this premise, carboxyl-terminated butadiene-acrylonitrile (CTBN) and PS-Ag composite microspheres were used as the toughening agent and conductive filler, respectively, and a facile strategy was developed to prepare ACAs (viz., PS-Ag/Ep-ACAs). As the PS-Ag composite microspheres exhibited a submicron structure, PS-Ag/Ep-ACAs creatively exhibited satisfactory anisotropic electrical and mechanical properties. Therefore, the research strategy and fabrication methods proposed demonstrate immense potential for the fabrication of large-scale ACAs in practical applications.

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Section: Introductionmentioning

confidence: 99%

Shell structure control of monodisperse polystyrene‐silver composite microspheres and synthesis of epoxy resin‐based anisotropic conductive adhesives

Liu

et al. 2023

Polymers for Advanced Techs

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“…The epoxy is widely used for preparation of epoxy‐based composites that finds application in microelectronic packaging, 26 anticorrosion, 27 and steel pipe structures 28 and other fields. The effect of TiO 2 loading content while fabricating TiO 2 ‐epoxy nanocomposites on different properties of the nanocomposite was reported at 0.1–0.3% w/w (on mild steel), 5 5–15% w/w (on perti dish/metal mold), 21 and 5–20% w/w 29 .…”

Section: Introductionmentioning

confidence: 99%

TiO₂‐epoxy nanocomposites coated steel: Surface morphology, spectroscopic, and photocatalytic characteristics

Ghodki

Patel

Choudhary

et al. 2023

Surface & Interface Analysis

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Funding information IIT DelhiNanocomposite coatings on metal surfaces provide unique material characteristics that play a strategic role in improving overall product/process quality. Thus, nanocomposite finds applications in different sectors such as petroleum, automobile, electrical and electronics, chemical, medical, metallurgy, food packaging, and air purification. This study focused on the fabrication of TiO 2 -epoxy nanocomposites for coating on steel sheet and analyzing their properties. The nanocomposites were prepared at 2%, 4%, and 8% (w/w) TiO 2 particle loading content. Different coated sheets were analyzed for surface morphology, spectroscopic, and photocatalytic characteristics. Field emission scanning electron microscope (FESEM) images showed uniform particle distribution of TiO 2 in the epoxy matrix at a lower concentration. Besides, TiO 2 nanoparticle cluster sizes ranged from 79.6 to 172 nm, 79.5 to 237 nm, and 122 to 164 nm for the samples of 2%, 4%, and 8% TiO 2 content, respectively. The Ti weight percent significantly increased from 1.69% to 7.34% with the rise in the level of TiO 2 filler in the TiO 2 -epoxy matrix, whereas O content varies from 22.07% to 26.02%. A characteristic absorption peak of TiO 2 at nearly 700 cm À1 in all the Fourier-transform infrared (FTIR) spectra of samples was detected. Degradation of methylene blue (MB) in the photocatalytic (UV-C + TiO 2 ) process was significantly higher than photolysis (UV-C) in a photoreactor. The degradation rate of MB increased with treatment time and TiO 2 loading content in the samples. Besides, after 1 h of treatment, maximal degradation of MB was 1.58% for photolysis whereas 1.96%, 2.63%, and 3.51% for the coated sheet of 2%, 4%, and 8% TiO 2 , respectively.Overall, the superior quality of steel sheets was obtained when coated with TiO 2epoxy nanocomposites.FESEM, Fourier transform infrared (FTIR) spectroscopy, methylene blue, nanocomposite coatings, photocatalysis, TiO 2 nanoparticles | INTRODUCTIONNanotechnology and nanoscience have emerged as a savior for current generation scientific problems and have been reported with many systems. [1][2][3] Nanocomposites are heterogeneous materials and formulated by creating a large interface between a polymer matrix and nano-sized building blocks. 4 Besides, the characteristics of nanocomposites are primarily determined by their structure, composition, interfacial interaction, and properties of the components. Nanocomposites are generally prepared by in situ polymerization, solvent-assisted methods, and melt compounding techniques. Homogeneous distribution of nanosized fillers/particles in the polymer matrix

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“…With the development of the traditional Chinese medicine industry and material technology [16][17][18][19][20][21][22],…”

Section: Introductionmentioning

confidence: 99%

Chemical composition, pharmacodynamic activity of processed Aconitum brachypodum Diels., and molecular docking analysis of its active target

Yanfei

et al. 2023

Adv Compos Hybrid Mater

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Aconitum Brachypodum Diels (AB) is a plant of Aconitum L. The dried roots of AB have analgesic and anti-in ammatory activity. However, the processing is required to reduce toxicity before use because of its high toxicity. Studies on the toxicity, pharmacodynamics, and chemical composition of processed Aconitum Brachypodum Diels. (PAB) are still lacking at present. In this study, the composition changes of AB and PAB were determined by UPLC-QE-Orbitrap-MS. The intensity of diester alkaloids was greatly reduced, while the monoester alkaloids were signi cantly increased. An acute toxicity experiment was used to evaluate the toxicity differences between AB and PAB, while the acetic acid-induced writhing pain experiment and croton oil-induced ear edema experiment were applied to evaluate the analgesic and antiin ammatory properties. The acute toxicity test of AB showed that the median lethal dose (LD50) was 1.37 g / kg, while the maximum tolerance of PAB was 30.0 g/kg. It was apparent that the toxicity of PAB was signi cantly reduced. The alkaloid component of PAB could signi cantly inhibit the mice's ear edema and signi cantly reduce the number of mice writhing. Based on the above ndings, 10 compounds, including songoramine (1), neoline (2), bullatine C (3), dihydroatisine (4), bullatine A (5), maltol (6), 15-Oacetylsongorine (7), 15-O-acetylsongoramine (8), songorine (9), and aldohypaconitine (10) were separated and identi ed from the alkaloid component of PAB. Compounds 4, 6, 8, and 10 were rstly separate from Aconitum. Finally, molecular docking to anti-in ammatory analgesic target protein was carried out. The results showed that the 10 compounds and target proteins had good binding capabilities, wherein 15-O-acetylsongoramine could interact with the key protein Akt1 of Pi3k-Akt pathway and adjust the downstream NF-κB critical pathway to play an anti-in ammatory analgesic effect.

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Hydrothermally synthesized ZnO-RGO-PPy for water-borne epoxy nanocomposite coating with anticorrosive reinforcement

Cited by 40 publications

References 87 publications

Shell structure control of monodisperse polystyrene‐silver composite microspheres and synthesis of epoxy resin‐based anisotropic conductive adhesives

Shell structure control of monodisperse polystyrene‐silver composite microspheres and synthesis of epoxy resin‐based anisotropic conductive adhesives

TiO₂‐epoxy nanocomposites coated steel: Surface morphology, spectroscopic, and photocatalytic characteristics

Chemical composition, pharmacodynamic activity of processed Aconitum brachypodum Diels., and molecular docking analysis of its active target

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Hydrothermally synthesized ZnO-RGO-PPy for water-borne epoxy nanocomposite coating with anticorrosive reinforcement

Cited by 40 publications

References 87 publications

Shell structure control of monodisperse polystyrene‐silver composite microspheres and synthesis of epoxy resin‐based anisotropic conductive adhesives

Shell structure control of monodisperse polystyrene‐silver composite microspheres and synthesis of epoxy resin‐based anisotropic conductive adhesives

TiO2‐epoxy nanocomposites coated steel: Surface morphology, spectroscopic, and photocatalytic characteristics

Chemical composition, pharmacodynamic activity of processed Aconitum brachypodum Diels., and molecular docking analysis of its active target

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TiO₂‐epoxy nanocomposites coated steel: Surface morphology, spectroscopic, and photocatalytic characteristics