Spray-assisted layer-by-layer assembly of decorated PEI/PAA films: morphological, growth and mechanical behavior

Ortega, Eduardo; Zavala, Genaro; Gracia-Pinilla, M.A.; Casas, Emilio; Guzman, V.; Menchaca, Jorge Luis

doi:10.1007/s11998-016-9896-z

Cited by 7 publications

(6 citation statements)

References 39 publications

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“…Each of these factors influence the deposition and thickness of the coating, which in turn affects the amphiphobicity of the coated substrate. [56,18,115,55] One of the key parameters in spray coating that impacts the surface morphology of the deposited layer is the nozzle to substrate distance. Vak et al identified three deposition regimes of wet, intermediate, and dry.…”

Section: Principles Of Spray Coatingmentioning

confidence: 99%

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Fabrication of Superamphiphobic Surfaces via Spray Coating; a Review

Jarad

Imran

Imani

et al. 2022

Adv Materials Technologies

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structure to implement anti-wetting, self-cleaning, [5][6][7][8][9][10] anti-freezing, anti-fogging, [11] anti-microbial, [12][13][14] anti-thrombogenic, [15][16][17] corrosion resistant, [18][19][20][21][22][23] and droplet manipulating [9,[24][25][26][27][28][29] materials. Such functional materials are used as breathable wearables for protection from chemicals and oil spills, [30] aviation to prevent large amounts of adherent ice, [29] oil pipelines to resist corrosion, cultural relics restoration, [31] separation membranes and janus membranes for advanced oilwater separation, [39,40] healthcare devices and medical implants to prevent infection, [41] and self-cleaning of glass materials such as solar cells and mobile devices. [42]

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Section: Principles Of Spray Coatingmentioning

confidence: 99%

“…Each of these factors influence the deposition and thickness of the coating, which in turn affects the amphiphobicity of the coated substrate. [ 56,18,115,55 ]…”

Section: Principles Of Spray Coatingmentioning

confidence: 99%

Fabrication of Superamphiphobic Surfaces via Spray Coating; a Review

Jarad

Imran

Imani

et al. 2022

Adv Materials Technologies

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“…The PEMs' coating is a soft material and has elasticity. Menchaca found that the elasticity of PEI/PAA PEM rounds between 8 and 9 GPa (Ortega et al, 2017). The (PAA/bPEI)*35 film has a Young's modulus and hardness of 9.8 ± 1.7 GPa and 0.41 ± 0.1 GPa, respectively (Xiang, Zhang, Yuan, Li, & Sun, 2018).…”

Section: Surface Wettabilitymentioning

confidence: 99%

Multilayers of poly(ethyleneimine)/poly(acrylic acid) coatings on Ti6Al4V acting as lubricated polymer‐bearing interface

Deng

Sun

et al. 2020

J Biomed Mater Res

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To achieve an efficient lubricated interface on titanium alloy (Ti6Al4V) alloy, polyelectrolyte multilayer (PEM) polymer coatings, based on poly(ethyleneimine)/poly(acrylic acid) (PEI/PAA), were fabricated on the surface of Ti6Al4V alloy substrates using the layer-bylayer (LbL) assembly technique. Their composition and morphology were confirmed by Fourier-transform infrared/attenuated total reflectance (FTIR/ATR) spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscopy. The tribological properties were investigated by a ball-on-disk rotating tribometer using deionized water, saline, and calf serum. The results exhibit that (PEI/PAA)*n coatings have the internal cross-linked network and porous structure on the surface. The surface of PEI/PAA coatings-modified Ti6Al4V shows the sufficient wettability. The polymer-bearing interface of (PEI/PAA)*10 exhibits a low friction coefficient, 0.059, for 2 hr, and represents an 88% decline compared with bare Ti6Al4V. Moreover, the wear track on the polymer-bearing interface is superlow.There is no obvious wear volume, which indicates effective wear resistance. The hydrated layer, the cross-linked network structure, and the porous structure of PEM coatings are the main factors for efficient tribological properties. The multilayer PEI/PAA coating shows the potential uses of developing the lubricated-bearing interface on Ti6Al4V alloy.

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“…Therefore, high‐speed planar coating techniques such as spraying, 11 brushing, 12 and spinning (spin‐assisted, SA) 13 LbL assembly have been developed. Unlike dipping LbL, these approaches create thinner coatings for the same number of adsorbed polymer bilayers, leading to different mechanical properties and capacity for loading of functional species within these multilayer coatings 14,15 . Thus, Decher and colleagues reported a dramatic 400‐fold deposition time decrease from 20 min to 3 s by utilizing spraying instead of dipping for polyelectrolyte multilayers of poly(sodium 4‐styrene sulfonate)/poly(allylamine hydrochloride) (PSS/PAH) 20 , and a 30‐fold reduction of the sprayed film roughness unlike the dipped LbL films 16 .…”

Section: Introductionmentioning

confidence: 99%

“…Unlike dipping LbL, these approaches create thinner coatings for the same number of adsorbed polymer bilayers, leading to different mechanical properties and capacity for loading of functional species within these multilayer coatings. 14,15 Thus, Decher and colleagues reported a dramatic 400-fold deposition time decrease from 20 min to 3 s by utilizing spraying instead of dipping for polyelectrolyte multilayers of poly(sodium 4-styrene sulfonate)/poly(allylamine hydrochloride) (PSS/PAH) 20 , and a 30-fold reduction of the sprayed film roughness unlike the dipped LbL films. 16 Therefore, assembly of thicker coatings with larger loading capacities using high-speed LbL methods can advance materials for sensing applications, tissue engineering, and medical testing devices.…”

mentioning

confidence: 99%

Hydrogen‐bonded polymer multilayer coatings via dynamic layer‐by‐layer assembly

Dolmat

Kozlovskaya

Inman

et al. 2022

Journal of Polymer Science

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We developed the dynamic assembly of the hydrogen‐bonded multilayers of (poly(N‐vinylpyrrolidone/poly(methacrylic acid)) (PVPON/PMAA)) and compared their properties to the static multilayers. We found that dynamic multilayers, wherein a planar substrate is shaken during polymer adsorption, leads to a 15‐time faster deposition of the planar coatings. The thicknesses and roughness of the dynamic coatings were found to be ⁓30% larger than those of static (no shaking) multilayer films as measured by spectroscopic ellipsometry and atomic force microscopy. We examined the film growth, mechanical properties, wettability, hydration, and pH stability of the planar static and dynamic multilayers and demonstrated that these properties were insignificantly affected by the assembly mode. Both static and dynamic coatings produced microporous films when exposed to pH = 5.9, close to the film critical dissolution pH = 6. We discovered that during the release of the multilayer films into a solution to produce free‐standing films either as planar membranes or multilayer capsule shells, the molecular chain rearrangements result in the decreased roughness for both static and dynamic multilayers and lead to a decreased thickness of the dynamic multilayers. Our findings can help develop a rapid synthesis of thicker nanostructured polymer coatings for sensing and controlled delivery applications.

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Spray-assisted layer-by-layer assembly of decorated PEI/PAA films: morphological, growth and mechanical behavior

Cited by 7 publications

References 39 publications

Fabrication of Superamphiphobic Surfaces via Spray Coating; a Review

Fabrication of Superamphiphobic Surfaces via Spray Coating; a Review

Multilayers of poly(ethyleneimine)/poly(acrylic acid) coatings on Ti6Al4V acting as lubricated polymer‐bearing interface

Hydrogen‐bonded polymer multilayer coatings via dynamic layer‐by‐layer assembly

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