A pH responsive Pickering emulsion stabilized by fibrous palygorskite particles

Lü, Jianyun; Tian, Xiao-Xiao; Jin, Yiming; Chen, Jing; Walters, Keisha B.; Ding, Shangwu

doi:10.1016/j.clay.2014.10.019

Cited by 37 publications

(17 citation statements)

References 35 publications

(39 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pal [25] investigated the effect of Sauter mean diameter on emulsion rheology and reported high viscosities and storage moduli as well as more pronounced shear thinning behavior in fine emulsions with small droplet sizes. Lu et al [27] investigated similar systems, reporting an increase of the apparent viscosity in both particle/water dispersions and o/w emulsions at high solid particle concentrations (1 -3 wt %). Kpogbemabou et al [26] investigated oil-inwater (o/w) emulsions stabilized by different solid particles (halloysite, kaolin, or palygorskite) and generating drop sizes up to several mm by variation of the liquid dispersed phase fraction in o/w emulsions.…”

Section: Introductionmentioning

confidence: 99%

Influence of Nanoparticles and Drop Size Distributions on the Rheology of w/o Pickering Emulsions

Hohl

Röhl

Stehl

et al. 2016

Chemie Ingenieur Technik

View full text Add to dashboard Cite

The rheological behavior of particle/oil suspensions and w/o Pickering emulsions consisting of water, 1-dodecene and different fumed silica nanoparticles was investigated. The particles varied in hydrophobicity and specific surface area. The influence of particle concentration and water content on rheology was determined and the emulsion drop size distributions were examined. Emulsions with different drop sizes were created by either varying the particle concentration or the water content. It was found that the particles in the continuous oil phase and not the drop size distribution seem to be the major influencing factor on the Pickering emulsion rheology.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of Nanoparticles and Drop Size Distributions on the Rheology of w/o Pickering Emulsions

Hohl

Röhl

Stehl

et al. 2016

Chemie Ingenieur Technik

View full text Add to dashboard Cite

show abstract

“…In our previous work, we found that the PAL particles could be employed as a Pickering emulsifier to stabilize toluene/water ( O / W ) emulsion. Herein, polymeric monomers were chosen as a part of oil phase.…”

Section: Resultsmentioning

confidence: 99%

“…After homogenization, a PAL particle‐stabilized Pickering emulsion was obtained [Figure (b)]. The as‐formed Pickering emulsion showed a long‐time stability, which could be stored for at least 3 months with trace change . According to the results of conductivity value (75 μS cm −1 ) and drop test for as‐prepared emulsion, the type of emulsion was O / W .…”

Section: Resultsmentioning

confidence: 99%

“…Previously, our group has prepared stable oil‐in‐water ( O / W ) Pickering emulsion stabilized by PAL particles without any chemical modification. Palygorskite has been demonstrated as an effective emulsifier with long‐term stability, which can be stored at least 3 months . We have also furthered our investigation on offering a novel water‐in‐oil ( W / O ) Pickering emulsifier by grafting PDEAEMA polymer brushes from the surface of PAL particles via Cu(0) mediated radical polymerization.…”

Section: Introductionmentioning

confidence: 97%

“…Palygorskite (PAL) is a kind of clay composed of rod‐like crystals of 20–70 nm in diameter, and from several hundred nanometers to several micrometers in length . The investigation of using fibrous palygorskite particles as a Pickering emulsifier has just been started . There are merely several reports on preparation of Pickering emulsion using PAL or modified PAL as emulsifier, not to mention the polymerization via Pickering emulsions stabilized by fibrous PAL particulates.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fabrication of pH‐sensitive poly(2‐(diethylamino)ethyl methacrylate)/palygorskite composite microspheres via Pickering emulsion polymerization and their release behavior

Lü

Chen

et al. 2015

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

The poly(2-(diethylamino)ethyl methacrylate)/palygorskite (PDEAEMA/PAL) composite microspheres were prepared via Pickering emulsion polymerization using palygorskite (PAL) as an emulsifier. The morphology, chemical structure, and content of PDEAEMA/PAL composite microspheres were investigated by polarizing optical microscopy, scanning electron microscopy (SEM), Fourier-transform infrared (FT-IR) spectroscopy, and thermal gravimetric analysis (TGA). The pH-responsive behavior of composite microspheres was studied by measuring their size at different pH values. Furthermore, their release behavior was investigated using rhodamine B (RhB) as a model molecule. It was proven that the release properties of RhB from PDEAEMA/PAL composite microspheres could be controlled by adjusting the pH values. The study of release kinetics found that Higuchi model was fit for RhB release from PDEAEMA/PAL composite microspheres at pH 5.0, 7.4, and 10.0. V C 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42179.

show abstract

Fabrication of active corrosion protection waterborne polyurethane coatings using cerium modified palygorskite nanocontainers

Liu

et al. 2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

The development of eco‐efficient and environmental friendly active anti‐corrosion coatings for metallic substrates represents a fundamental milestone in many engineering applications. Herein, a new type of active corrosion protection coating was successfully synthesized simply based on waterborne polyurethane (WPU) and nanocontainer of Ce3+ modified palygorskite (Ce‐PAL). Particularly, the nanocontainer of Ce‐PAL was achieved via a facile and green process by cation exchange in water. Inductively coupled plasma atomic emission spectrometry (ICP) revealed that Ce3+ had successfully incorporated into PAL nanofibers with a loading amount of 10.334 g/kg. The salt immersion test, electrochemical potentiodynamic measurements and electrochemical impedance spectroscopy (EIS) demonstrated that the incorporation of Ce‐PAL only with 2 wt% into WPU led to a significant improvement of their corrosion protection properties. Finally, according to the results of scanning electron microscopy with energy dispersive X‐ray spectroscopy, the active anti‐corrosion mechanism of Ce‐PAL/WPU coating was proposed.

show abstract

A pH responsive Pickering emulsion stabilized by fibrous palygorskite particles

Cited by 37 publications

References 35 publications

Influence of Nanoparticles and Drop Size Distributions on the Rheology of w/o Pickering Emulsions

Influence of Nanoparticles and Drop Size Distributions on the Rheology of w/o Pickering Emulsions

Fabrication of pH‐sensitive poly(2‐(diethylamino)ethyl methacrylate)/palygorskite composite microspheres via Pickering emulsion polymerization and their release behavior

Fabrication of active corrosion protection waterborne polyurethane coatings using cerium modified palygorskite nanocontainers

Contact Info

Product

Resources

About