Glass bead-bead collisions abrade adsorbed soft-shell polymeric nanoparticles leaving footprints

Dong, Xiaofei; Gustafsson, Emil; Price, Marie; Dai, Zhujiang; Xu, Manqiu; Pelton, Robert

doi:10.1016/j.colsurfa.2017.08.030

Cited by 3 publications

(3 citation statements)

References 20 publications

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“…In another work related to mineral flotation, we have shown that adsorbed polystyrene particles on glass surfaces display four dramatic effects: Pinning of the three-phase contact line was observed when water was withdrawn from a sessile drop on glass with a sparse polystyrene nanoparticle coating . Pinning was also observed with some of the nanoparticle inks listed in Table ; the inks displaying pinning correspond to the poorest printing inks. Adsorbed polystyrene particles promote the attachment of air bubbles to glass surfaces . It is relatively difficult for an air bubble suspended in water to adhere to a smooth glass surface.…”

Section: Resultsmentioning

confidence: 99%

“…Adsorbed polystyrene particles promote the attachment of air bubbles to glass surfaces . It is relatively difficult for an air bubble suspended in water to adhere to a smooth glass surface.…”

Section: Resultsmentioning

confidence: 99%

“…Adsorbed polystyrene particles promote the attachment of air bubbles to glass surfaces. 21 It is relatively difficult for an air bubble suspended in water to adhere to a smooth glass surface. In contrast, adsorbed nanoparticles are hydrophobic asperities on more hydrophilic glass surfaces, promoting the formation of glass/water/air three phase contact lines and, thus, bubble adhesion.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Deposited Nanoparticles Can Promote Air Clogging of Piezoelectric Inkjet Printhead Nozzles

Dahhan

Filipe

et al. 2019

Langmuir

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Piezoelectric inkjet printing is susceptible to printhead clogging when printing with inks that contain dispersed particles. This paper investigates the mechanisms by which 28–530 nm nanoparticle dispersions induce printhead clogging without forming large aggregates or thick deposited layers on printhead surfaces. Printing experiments were combined with nanoparticle deposition studies and with experiments where inks were pumped through printheads at a constant flow rate with a syringe pump. Submonolayer coverages of hydrophobic cationic polystyrene nanoparticles adhering to printhead surfaces promote rapid clogging by trapped air that enters from the nozzle opening. We propose that the deposited particles distort the shape of the ink/air meniscus, possibly causing air entrainment, and promote air bubble adhesion to the interior printhead surfaces. The printer’s purge-blot cleaning procedure removes air clogs, but the clogs quickly reform when printing is resumed because the adsorbed nanoparticles are not removed by the cleaning procedure. Nondepositing anionic hydrophobic nanoparticles cause much less clogging, possibly because of filtration of trace large aggregates. Colloidal stability is a necessary but not sufficient criterion for ink dispersions; the ink particles must not adsorb onto the printhead surfaces. Thus, alternate surface chemistries for the printhead and ink particle surfaces may be required to print hydrophobic ink materials.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Deposited Nanoparticles Can Promote Air Clogging of Piezoelectric Inkjet Printhead Nozzles

Dahhan

Filipe

et al. 2019

Langmuir

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Polymer-based collectors in flotation: A review

Bednarek,

Zawala,

Kowalczuk

2025

Advances in Colloid and Interface Science

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Behavior characteristics of Janus particles impacting bubbles

Zhao¹,

Xianbing²,

Yang³

et al. 2022

Acta Phys. Sin.

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In order to better apply amphiphilic Janus particles in phase change heat transfer, the hydrophilic-superhydrophobic Janus particle were prepared with copper balls, with a particle size of 1.0 mm and a bubble diameter of 3.0 mm. The regularity of Janus particle with small bubble colliding bubble at different heights was studied. The falling heights were 0 mm, 10.0 mm, 20.0 mm, 30.0 mm and 40.0 mm. The results showed that there were obvious differences in the behavior characteristics of Janus particles with different wettability surfaces when they hit the bubble. When the superhydrophobic side contacted the bubble, it would slide to the bottom of the bubble without rotation along the bubble surface; When the hydrophilic side contacted the bubble, it would first slide along the bubble surface for a certain distance, and then rotated, caused strong disturbance to the bubble; When the interface of hydrophilic and superhydrophobic contacted the bubble, the particle would start to rotate at the moment of contact. When Janus particle collided with bubble at a certain height, the hydrophilic surface generally contacted with bubble first. With the increase of height, the degree of deformation of Janus particles pulling bubbles increased. Based on the force analysis, it was found that the main reason for the rotation of Janus particles was the different points and directions of capillary force acting on different wettable surfaces, and the rotation torque was generated accordingly.

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Glass bead-bead collisions abrade adsorbed soft-shell polymeric nanoparticles leaving footprints

Cited by 3 publications

References 20 publications

Deposited Nanoparticles Can Promote Air Clogging of Piezoelectric Inkjet Printhead Nozzles

Deposited Nanoparticles Can Promote Air Clogging of Piezoelectric Inkjet Printhead Nozzles

Polymer-based collectors in flotation: A review

Behavior characteristics of Janus particles impacting bubbles

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