Preparation and properties of polyvinylpyrrolidone-cuprous oxide microcapsule antifouling coating

Mao, Tianye; Lu, Gang; Xu, Chen; Yu, Haibin; Yu, Jialu

doi:10.1016/j.porgcoat.2019.105317

Cited by 24 publications

(20 citation statements)

References 22 publications

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“…Microcapsules are particles with a nonuniform core–shell structure in which the internal material is tightly wrapped by shell materials to achieve a controlled slow release. In previous reports, a PVP–Cu 2 O microcapsule was combined with a PU/EP-modified resin to prepare antifouling coating samples . The chitosan-capped cupric oxide nanoleaves were also used as an antifouling agent in antifouling coatings to achieve a slow release. , To achieve a constrained release of copper ions without deteriorating the antifouling efficiency, another efficient and convenient method was used to incorporate copper into polymeric matrices.…”

Section: Introductionmentioning

confidence: 99%

Copper Tannic Acid-Coordinated Metal–Organic Nanosheets for Synergistic Antimicrobial and Antifouling Coatings

Wei

et al. 2021

ACS Appl. Mater. Interfaces

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The copper tannic acid (CuTA) nanosheets with an excellent antibacterial activity were successfully prepared, which showed fine antibacterial and antifouling performance after hybridization with acrylic resin. The morphology and structure characterization of CuTA nanosheets were studied by transmission electron microscopy, scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis, etc. The plate counting method, zone of inhibition test, and minimum inhibitory concentration (MIC) method were used to detect the antibacterial activity of the prepared samples against Gram-positive Bacillus subtilis (B. subtilis) and Gram-negative Escherichia coli (E. coli). The results showed that the killing rates of 2 and 0.5 mg/mL of CuTA powder were close to 100% after 24 h. The MIC values of E. coli and B. subtilis were 0.25 and 0.5 mg/mL, respectively. The results of morphology and element distribution of bacteria, after treating with CuTA powder, revealed that Cu 2+ and TA destroyed their cell walls and inhibited the proliferation and growth of the bacteria. Furthermore, the hybrid coating of CuTA nanosheets and acrylic resin showed brilliant antimicrobial performance for E. coli and B. subtilis and antialgae properties under a lower CuTA load (≤5%). The CuTA nanosheets with a low copper content (30.9 wt %) and low pollution have promising applications in marine antifouling coatings.

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Section: Introductionmentioning

confidence: 99%

Copper Tannic Acid-Coordinated Metal–Organic Nanosheets for Synergistic Antimicrobial and Antifouling Coatings

Wei

et al. 2021

ACS Appl. Mater. Interfaces

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“…Anti-fouling properties are desirable in numerous applications ranging from biosensors to biomedical implants and devices and from food packaging to industrial and marine equipment. Zhao et al [91] prepared a new type of composite film with high anti-fouling performance composed of polyvinylidene fluoride, graphene oxide and copper oxide through the phase transformation process (Figure 8e). The composite membranes exhibit excellent anti-fouling properties, including higher flux recovery, greater resistance to accumulated contaminants, lower filtration resistance, and especially lower irreversible resistance, which have been significantly improved in practical engineering.…”

Section: Anti-fouling Propertymentioning

confidence: 99%

“…(d) Anti‐corrosion performance of SHS with micro‐/nano‐structured Cu 2 O [73]. (e) Anti‐fouling performance of a surface composed of polyvinylidene fluoride, graphene oxide and copper oxide [91]…”

Section: Applications Of Shss Based On Copper‐oxide Topographymentioning

confidence: 99%

Bionic superhydrophobic surfaces based on topography of copper oxides

Chen

Zhan

Bai

et al. 2022

Biosurface and Biotribology

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Superhydrophobic surfaces (SHSs) exist in many biological organisms endowed by spectacular surface topographies, which provide important insights to drive a paradigm shift in design of engineering surfaces. Based on this, extensive progresses have been developed on bionic superhydrophobic strategies. Among them, SHSs based on topography of copper oxides exhibit considerable application prospects because of the steerability and diversity of topography, as well as additional performances, such as antibiosis, anticorrosion and catalysis. We first present a brief overview of the discovery of natural SHSs as well as fundamental understanding of surface wetting performance. Then, the structural effects in superhydrophobic systems based on the topographies of biological organisms and copper oxides are described. Finally, we highlight the perspectives on the novel design strategies of copper oxide-based SHSs that adapt to various practical applications.

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“…The low utilization rate of pesticides leads to large loss of pesticide active ingredients, as well as soil and water pollution. In recent years, slow and controlled release technology has been widely used in medicine [2], paint [3], cosmetics [4], environmental engineering [5] and other industries and fields. In the field of pesticide dosage form processing, slow and controlled release technology is also an ideal choice to improve the effective utilization rate of pesticides and reduce environmental pollution, and has become an important direction of the development of new pesticide dosage forms [6,7].…”

Section: Introductionmentioning

confidence: 99%

Study on Sustained-Release Pesticides Blended with Fosthiazate-Stearic Acid/Expanded Perlite

Huang¹,

Wu²,

Zhou³

et al. 2023

Journal of Renewable Materials

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The low utilization rate of pesticides makes the migration of pesticides in water and soil, which brings great harm to the ecosystem. The development of pesticide carriers with good drug loading capacity and release control ability is an effective method to realize effective utilization of pesticides and reduce pesticide losses. In this work, fosthiazate-stearic acid/expanded perlite sustained-release particles were successfully prepared by vacuum impregnation using expanded perlite (EP) as carrier, fosthiazate (FOS) as model pesticide and stearic acid (SA) as hydrophobic matrix. The structure and morphology of the samples were studied by BET, FT-IR, TGA, XRD, DSC and SEM. The effects of different mass ratios of FOS to SA on loading capacity and release rate at 24 h were investigated. The sustained release behavior of FOS-SA/EP at different temperatures and pH values was investigated by static dialysis bag method. The results showed that FOS and SA were adsorbed in EP pores by physical interaction. With the mass ratios of FOS to SA decreasing from 7:3 to 3:7, the 24 h release rate of FOS-SA/EP decreased from 18.77% to 8.05%, and the drug loading decreased from 461.32 to 130.99 mg/g. FOS-SA/EP showed obvious temperature response at 25°C, 30°C and 35°C, the cumulative release rate (CRR) of 200 h were 33.38%, 41.50% and 51.17%, respectively. When pH = 5, the CRR of FOS was higher than that of pH = 7, and the CRR of FOS for 200 h were 49.01% and 30.12%, respectively. At different temperatures and pH = 5, the release mechanism of FOS-SA/EP belongs to the Fickian diffusion mechanism; When pH = 7, the diffusion mechanism is dominant, and the dissolution mechanism is complementary.

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Preparation and properties of polyvinylpyrrolidone-cuprous oxide microcapsule antifouling coating

Cited by 24 publications

References 22 publications

Copper Tannic Acid-Coordinated Metal–Organic Nanosheets for Synergistic Antimicrobial and Antifouling Coatings

Copper Tannic Acid-Coordinated Metal–Organic Nanosheets for Synergistic Antimicrobial and Antifouling Coatings

Bionic superhydrophobic surfaces based on topography of copper oxides

Study on Sustained-Release Pesticides Blended with Fosthiazate-Stearic Acid/Expanded Perlite

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