Encapsulation of nano Disperse Red 60 via modified miniemulsion polymerization. I. Preparation and characterization

El-sayed, Galila M.; Kamel, M.; Morsy, N. S.; Taher, Fatma A.

doi:10.1002/app.35102

Cited by 50 publications

(18 citation statements)

References 42 publications

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“…The nanofluids zeta potential has a direct relationship with suspension stability as well as the adhesion and wetting phenomena [70]. Nanoparticles with lower zeta potentials are electrically more unstable and thus flocculate and precipitate more rapidly [71]. Stability of nanofluid is an essential parameter that can limit the nanofluid application, and it depends on both the van der Waals attraction [70] and electrostatic repulsion forces among nanoparticles [31].…”

Section: Zeta Potential Of Nanofluidsmentioning

confidence: 99%

Effect of temperature and SiO2 nanoparticle size on wettability alteration of oil-wet calcite

Al-Anssari

Wang

Barifcani

et al. 2017

Fuel

136

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Nanofluid treatment of oil reservoirs is being developed to enhance oil recovery and increase residual trapping capacities of CO2 at the reservoir scale. Recent studies have demonstrated good potential for silica nanoparticles for enhanced oil recovery (EOR) at ambient conditions. Nanofluid composition and exposure time have shown significant effects on the efficiency of EOR. However, there is a serious lack of information regarding the influence of temperature on nanofluid performance; thus the effects of temperature, exposure time and particle size on wettability alteration of oil-wet calcite surface were comprehensively investigated; moreover, the stability of the nanofluids was examined. We found that nanofluid treatment is more efficient at elevated temperatures, while nanoparticle size had no influence. Mechanistically most nanoparticles were irreversibly adsorbed by the calcite surface. We conclude that such nano-formulations are potentially useful EOR agents and may improve the efficiency of CO2-storage even at higher reservoir temperatures.

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Section: Zeta Potential Of Nanofluidsmentioning

confidence: 99%

Effect of temperature and SiO2 nanoparticle size on wettability alteration of oil-wet calcite

Al-Anssari

Wang

Barifcani

et al. 2017

Fuel

136

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“…Disperse dyes are part of the derivatives of nitro-phenyl amine and azoanthraquinone dyes and don’t contain sulfated groups. Disperse dyes are soluble in yarn but insoluble in water (El-sayed et al 2012). Reactive dyes are anionic, soluble in water and very stable.…”

Section: Introductionmentioning

confidence: 99%

Removing Disperse red 60 and Reactive blue 19 dyes removal by using Alcea rosea root mucilage as a natural coagulant

2019

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In terms of health, dyes have carcinogenic, mutagenic and toxic properties and can have adverse effects on health and the environment. Therefore, sewage containing to dyes must be purified before being discharged into the environment. The current study aimed to investigate the effectiveness of Alcea rosea root extract in Disperse red 60 and Reactive blue 19 dyes removal from synthetic sewage. In this study, the effect of different indices including pH (5–11), Alcea rosea concentration (50–300 mg/L) and initial dye concentration (10–80 mg/L) was investigated. During the tests, the coagulant was stirred with rapid mixing at a speed of 250 rpm for 2 min. In the following, the speed (30–60 rpm) and the time (10–25 min) were used for slow mixing and after mixing the effect of settling time (10–60 min) and temperature (20–70) on removal efficiency of Disperse and Reactive dyes was investigated. The results showed that the maximum of removal efficiency of Disperse and Reactive dyes in optimum conditions including (pH = 11, coagulant concentration = 200 and 250 mg/L, dye concentration 40 and 20 mg/L, speed 60 rpm, during 15 min with settling time 60 min and temperature 60 °C obtained 86% and 68%, respectively. According to the result, the Alcea rosea coagulant has the best ability in removing dyes from aqueous solutions and sewage, especially Disperse dyes. Disperse dye is much eliminated in the coagulation process due to its lower solubility, higher suspending materials and less required solved chemical oxygen demand to the total chemical oxygen demand (SCOD/TCOD).

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“…Color polymer nanospheres combine dyes acting as an essential ingredient and suitable polymeric matrix, exhibiting good performance integrating the excellent chromatic properties and good processability [7]. To date, several methods on the preparation of color polymer nanospheres have been reported, such as solvent evaporation method and mini-emulsion polymerization [8]. Although these methods are effective for incorporating disperse dyes into polymer particles, it is difficult to obtain pure products in most cases owing to the polymeric stabilizer or surfactant added in rapid solvent evaporation method, and mini-emulsion polymerization method is time-consuming and complex, requiring control over numerous parameters such as monomer composition, reaction conditions, and emulsifier type [9,10].…”

Section: Introductionmentioning

confidence: 99%

Inkjet Printable and Self-Curable Disperse Dyes/P(St-BA-MAA) Nanosphere Inks for Both Hydrophilic and Hydrophobic Fabrics

et al. 2018

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Low-water-soluble disperse dyes possess a broad color gamut and good durability, but they need chemical or physical modification before being used in inks and can only be applied to several kinds of hydrophobic fabrics. In this work, disperse dyes/P(St-BA-MAA) nanospheres (known as DPN) absorbed by sodium nitrilotriacetate (known as NTA@DPN) were prepared and applied into ink formulations, which exhibited high dye fixation, long-term stability and self-curable ability without addition of any binder. Transmission electron microscopy (TEM) images showed the nanospheres have homogeneous core-shell spherical shape and the average diameter increased by 20.6 nm after coloration. X-ray diffraction (XRD), Fourier transform infrared spectrum (FTIR), and differential scanning calorimetry (DSC) measurements illustrated the interaction between dyes and nanospheres and indicated that the colored nanospheres contained both dye molecules and crystalline dyes. The Zeta potential and particle size measurements demonstrated that the dispersion stability was improved when sodium nitrilotriacetate (NTA) was absorbed onto DPN. The rheological behavior of the NTA@DPN inks was Newtonian and desired droplet formation was achieved at the viscosity of 4.23 mPa·s. Both hydrophilic cotton and hydrophobic polyester fabrics were cationic modified before used, which had an excellent image quality and desired rubbing fastness after inkjet printing. Scanning electron microscope (SEM) images showed NTA@DPN formed stable deposits on the surface of modified fibers and could self-cure to form continuous film coating on the fiber surface after being baked at 150 °C without addition of any binder.

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Encapsulation of nano Disperse Red 60 via modified miniemulsion polymerization. I. Preparation and characterization

Cited by 50 publications

References 42 publications

Effect of temperature and SiO2 nanoparticle size on wettability alteration of oil-wet calcite

Effect of temperature and SiO2 nanoparticle size on wettability alteration of oil-wet calcite

Removing Disperse red 60 and Reactive blue 19 dyes removal by using Alcea rosea root mucilage as a natural coagulant

Inkjet Printable and Self-Curable Disperse Dyes/P(St-BA-MAA) Nanosphere Inks for Both Hydrophilic and Hydrophobic Fabrics

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