Colorful poly(dopamine) coated aluminum pigments, their corrosion resistance and color performance

Cao, Ming; Zhang, Yuanyuan; Xu, Meisong; Dong, Qin; Chen, Tianyi; Xia, Ru; Qian, Jiasheng

doi:10.1016/j.dyepig.2022.110090

Cited by 8 publications

(3 citation statements)

References 33 publications

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“…To calculate the grafting efficiency, the TGA curves of silica, PDA, and silica‐PDA‐0.18 are thereafter investigated, as shown in Figure 2b. Compared with silica, a weight loss (18.0%) in the temperature range of 25–600°C can be observed for silica‐PDA, which is attributed to the thermal decomposition of the PDA 31 …”

Section: Resultsmentioning

confidence: 99%

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Antioxidating and reinforcing effect of polydopamine functionalized silica on natural rubber latex films

Xiong

Zhang

et al. 2023

J of Applied Polymer Sci

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Since the outbreak of COVID‐19, the demand for natural latex products with increased mechanical properties and aging resistance has surged. Based on the excellent adhesion and antioxidant properties of polydopamine (PDA), we employed a one‐pot method to modify the surface of silica substrates using PDA containing a polyphenol structure, to prepare a reinforced silica‐PDA composite latex material with antioxidant properties. As expected, the silica‐PDA composite achieved both uniform dispersion and good interfacial interactions with natural rubber latex (NRL). In addition, compared with common NRL/silica films, the mechanical properties of the NRL/silica‐PDA film were significantly improved; specifically, silica‐PDA can highly‐enhanced the mechanical property of NRL film from 24.94 to 32.18 MPa of tensile strength. Further, the antioxidant activity of the silica‐PDA film exceeded that of commercially available antioxidant D. Considering the notable performance boost of silica‐PDA composites on NRL films, we believe that the treatment of silica with natural polyphenols offers a convenient and facile new route for the preparation of environmentally friendly multifunctional silica additives.

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Section: Resultsmentioning

confidence: 99%

“…Compared with silica, a weight loss (18.0%) in the temperature range of 25-600 C can be observed for silica-PDA, which is attributed to the thermal decomposition of the PDA. 31…”

Section: Characterizationmentioning

confidence: 99%

Antioxidating and reinforcing effect of polydopamine functionalized silica on natural rubber latex films

Xiong

Zhang

et al. 2023

J of Applied Polymer Sci

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“…Different from the above conventional strategies, oxidative polymerization of dopamine can form protective polydopamine (PDA) coatings on Al NPs under mild conditions. − Dopamine has abundant catechol and amine groups and thus can form eminent adhesion on metal surfaces via electrostatic interaction and/or hydrogen bonding. − Although inherently more stable than conventional coatings, PDA coatings are still vulnerable in harsh conditions like alkaline solutions and hot liquids due to non-covalent interactions in the PDA coating . So, PDA coatings are still insufficient to protect Al NPs from oxidation decomposition under such conditions .…”

Section: Introductionmentioning

confidence: 99%

Ultrastable Aluminum Nanoparticles with Enhanced Combustion Performance Enabled by a Polydopamine/Polyethyleneimine Nanocoating

Xiong

Wu³

et al. 2023

Langmuir

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In national defense, aluminum nanoparticles (Al NPs) have better combustion performance than Al microparticles but are easily oxidized during processing, especially in oxidative liquids. Although some protective coatings have been reported, it is still challenging to obtain Al NPs stable in oxidative liquids (e.g., hot liquids) without scarifying combustion performance. Here, we report ultrastable Al NPs with enhanced combustion performance enabled by the crosslinked polydopamine/polyethyleneimine (PDA/PEI) nanocoating merely ∼15 nm in thickness and ∼0.24 wt % in mass. The Al@PDA/PEI NPs are fabricated by one-step rapid graft copolymerization of dopamine and PEI on Al NPs at room temperature. The formation mechanism of the nanocoating is discussed including reactions between dopamine and PEI and interactions of the nanocoating with Al NPs. The Al@PDA/PEI NPs show excellent stability in hot water, and the mechanism is interpreted by molecular dynamics simulation. The PDA/PEI nanocoating can also enhance the combustion heat and burning rate of Al NPs.

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Dairy wastewater treatment by peroxi-electrocoagulation method in hybrid electrocoagulation reactor and development of pigment from waste sludge

Bhuvanendran,

Bhuvaneshwari,

Prasannakumari

et al. 2024

J Mater Cycles Waste Manag

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Colorful poly(dopamine) coated aluminum pigments, their corrosion resistance and color performance

Cited by 8 publications

References 33 publications

Antioxidating and reinforcing effect of polydopamine functionalized silica on natural rubber latex films

Antioxidating and reinforcing effect of polydopamine functionalized silica on natural rubber latex films

Ultrastable Aluminum Nanoparticles with Enhanced Combustion Performance Enabled by a Polydopamine/Polyethyleneimine Nanocoating

Dairy wastewater treatment by peroxi-electrocoagulation method in hybrid electrocoagulation reactor and development of pigment from waste sludge

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