The synthesis, characterization and decontamination of surface radioactive contamination of ethyl cellulose/polyacrylate strippable detergent at low temperature

Pan, Xunhai; Lin, Xiaoyan; Xu, Xinrui; Li, Jian; Xi, Hailing

doi:10.1016/j.colsurfa.2022.128463

Cited by 7 publications

(2 citation statements)

References 39 publications

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“…Hence, given that the SEBS molecular chain goes from stretching to shrinking states, followed by tight aggregation together during solvent volatilization, the unevenly distributed stress eventually gets released by cracking, especially after inducing the high-surface-energy CNT@PANI absorber. The long-chain acrylate with high surface energy was used as a blending modification component to enhance the miscibility and molecular chain entanglement of SEBS under H-bonds’ action (as depicted in Figure b), thus improving the surface energy of SEBS and endowing the whole mixture with good cohesion and firm adhesion. , Furthermore, this critical H-bonds interaction was investigated by a Fourier transform infrared (FTIR) spectrometer (Figure c) . The stretching vibration band of the CO peak of the long-chain acrylate obviously shifted from 1730 to 1725 cm –1 and showed a marked increase in amplitude on increasing the amount (from 0 to 8 wt %) of the long-chain acrylate in SEBS, which clearly reveals the H-bond formation between acrylate and SEBS .…”

Section: Resultsmentioning

confidence: 99%

Peelable Microwave Absorption Coating with Reusable and Anticorrosion Merits

Li,

Shi,

Zhang

et al. 2024

ACS Appl. Mater. Interfaces

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The peelable microwave absorption (MA) coating with reversible adhesion for stable presence on substrates and easy release without any residuals is highly desired in temporary electromagnetic protection, which can quickly enter and disengage the electromagnetic protection state according to the real-time changeable harsh surroundings. On the contrary, with the incorporation of abundant absorbent to achieve excellent MA ability, the tunable adhesion and sufficient cohesion are extremely challenging to fulfill the above requirement. The reported peelable coatings still have problems in controlling adhesion/cohesion strength and coating release, facing substantial residuals after peeling even using complex chemical modification or abundant additives. Herein, a peelable MA coating based on the block characteristics of polar and nonpolar segments of poly(styrene-(ethylene-co-butylene)-styrene) (SEBS) is successfully developed. The polyaniline-decorated carbon nanotube as a microwave absorber plays a positive influence on the adhesion/cohesion of the coating due to bonding interaction. The competitive effective absorption bandwidth (EAB) of 8.8 GHz and controllable yet reversible adhesion release on various substrates and complex surfaces have been achieved. The reusability endows peelable MA coating with 93% retention of EAB even after ten coating-peeling cycles. The coating with excellent chemical and adhesion stability can effectively protect substrates from salt/acid/alkali corrosion, showing over 98% retention of EAB even after 8 h of accelerated corrosion. Our peelable MA coating via a general yet reliable approach provides a prospect for temporary electromagnetic protection.

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Section: Resultsmentioning

confidence: 99%

Peelable Microwave Absorption Coating with Reusable and Anticorrosion Merits

Li,

Shi,

Zhang

et al. 2024

ACS Appl. Mater. Interfaces

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“…Examples of polymers utilized for the formulation of strippable coatings include polyvinyl alcohol [24,29], polyethylene [24], polystyrene, poly (vinyl acetate) [9], polyacrylic acid [24], polyacrylates [30], polyaniline [31] polyurethanes [32], cellulose derivatives [33], N-halamine polymers [34] and other polysaccharides [35].…”

Section: Introductionmentioning

confidence: 99%

Peelable Alginate Films Reinforced by Carbon Nanofibers Decorated with Antimicrobial Nanoparticles for Immediate Biological Decontamination of Surfaces

Toader,

Diacon,

Rusen

et al. 2023

Nanomaterials

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This study presents the synthesis and characterization of alginate-based nanocomposite peelable films, reinforced by carbon nanofibers (CNFs) decorated with nanoparticles that possess remarkable antimicrobial properties. These materials are suitable for immediate decontamination applications, being designed as fluid formulations that can be applied on contaminated surfaces, and subsequently, they can rapidly form a peelable film via divalent ion crosslinking and can be easily peeled and disposed of. Silver, copper, and zinc oxide nanoparticles (NPs) were synthesized using superficial oxidized carbon nanofibers (CNF-ox) as support. To obtain the decontaminating formulations, sodium alginate (ALG) was further incorporated into the colloidal solutions containing the antimicrobial nanoparticles. The properties of the initial CNF-ox-NP-ALG solutions and the resulting peelable nanocomposite hydrogels (obtained by crosslinking with zinc acetate) were assessed by rheological measurements, and mechanical investigations, respectively. The evaluation of Minimal Inhibitory Concentration (MIC) and Minimal Bactericidal Concentration (MBC) for the synthesized nanoparticles (silver, copper, and zinc oxide) was performed. The best values for MIC and MBC were obtained for CNF-ox decorated with AgNPs for both types of bacterial strains: Gram-negative (MIC and MBC values (mg/L): E. coli—3 and 108; P. aeruginosa—3 and 54) and Gram-positive (MIC and MBC values (mg/L): S. aureus—13 and 27). The film-forming decontaminating formulations were also subjected to a microbiology assay consisting of the time-kill test, MIC and MBC estimations, and evaluation of the efficacity of peelable coatings in removing the biological agents from the contaminated surfaces. The best decontamination efficiencies against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa varied between 97.40% and 99.95% when employing silver-decorated CNF-ox in the decontaminating formulations. These results reveal an enhanced antimicrobial activity brought about by the synergistic effect of silver and CNF-ox, coupled with an efficient incorporation of the contaminants inside the peelable films.

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Study on the mechanism of removing surface uranium pollution by polyvinyl alcohol foam gel/MOF-808 composite

Zhao,

Chen,

et al. 2024

J Radioanal Nucl Chem

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The synthesis, characterization and decontamination of surface radioactive contamination of ethyl cellulose/polyacrylate strippable detergent at low temperature

Cited by 7 publications

References 39 publications

Peelable Microwave Absorption Coating with Reusable and Anticorrosion Merits

Peelable Microwave Absorption Coating with Reusable and Anticorrosion Merits

Peelable Alginate Films Reinforced by Carbon Nanofibers Decorated with Antimicrobial Nanoparticles for Immediate Biological Decontamination of Surfaces

Study on the mechanism of removing surface uranium pollution by polyvinyl alcohol foam gel/MOF-808 composite

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