scholarly journals Quick-traffic slurry surfacing mix with orthophosphoric acid

2021 ◽  
Vol 27 (3) ◽  
pp. 191-195
Author(s):  
Iurii Sidun ◽  
Oleksiy Vollis ◽  
Volodymyr Hidei ◽  
Volodymyr Bidos
Keyword(s):  
Methylene Blue ◽  
Particle Size ◽  
Orthophosphoric Acid ◽  
Component Composition ◽  
Cohesion Strength ◽  
Methylene Blue Adsorption ◽  
Bitumen Emulsion ◽  
Time Criterion ◽  
Variable Content ◽  
Made In

Abstract Bitumen emulsions for slurry surfacing mix technology using oxidized bitumen and hydrochloric and orthophosphoric acids on laboratory DenimoTech bitumen-emulsion plant are made in the work. Methylene blue adsorption index of granite aggregate for use in slurry surfacing mix was investigated. Comparatively mix time and cohesion strength build-up of selected compositions slurry surfacing mix with hydrochloric and orthophosphoric acids depending on the variable content of bitumen emulsion. The advantage of using orthophosphoric acid in slurry surfacing mix according to the cohesion strength build-up criterion has been proved. The importance of correct distribution of bitumen drops in the emulsion was confirmed using a sedimentograph Mastersizer 2000. Two emulsions of the same component composition were compared, which differed in particle size. It has been established that it is not possible to design a slurry surfacing mix using the mix time criterion with the help of coarse bitumen emulsion.

scholarly journals Preparation of the monodispersed carboxyl-functionalized polymer microspheres with disproportionated rosin moiety and adsorption of methylene blue

2018 ◽  
Vol 36 (5-6) ◽  
pp. 1260-1273 ◽  
Author(s):  
Cai-Li Yu ◽  
Feng Bian ◽  
Shu-Fen Zhang ◽  
Xu Xu ◽  
Peng Ren ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Particle Size ◽  
Raw Materials ◽  
Average Particle Size ◽  
Particle Size Analysis ◽  
Size Analysis ◽  
Average Particle ◽  
Polymer Microspheres ◽  
Carboxyl Content ◽  
Methylene Blue Adsorption

Carboxyl-functionalized polymer microspheres with a rosin moiety were prepared through dispersion polymerization using styrene, disproportionated rosin ester, and methylacrylic acid as raw materials. The effects of dispersion medium (ethanol/water) ratio, monomer mass proportion and initiator concentration on the polymer microspheres were studied. Scanning electron microscopy, laser particle size analysis, thermogravimetric analysis and Fourier transform infrared spectroscopy were used to characterize the microspheres, and their carboxyl contents were determined by the conductance titration method. The adsorption of methylene blue of the microspheres was also investigated. The results showed that rosin-based carboxyl-functionalized polymer microspheres were successfully synthesized. The microspheres exhibited smooth, spherical shapes with good monodispersity and high thermal stability. The carboxyl content of the microspheres prepared under optimum conditions was 0.089 mmol·g−1, with the average particle size approximately 950 nm. With increasing carboxyl contents of the polymer microspheres, their methylene blue adsorption capacities increased. The maximum methylene blue adsorption capacity of the microspheres was 59.55 mg·g−1 in the highest carboxyl content.

scholarly journals Magnetic Carbon Nanofibers from Horse Manure via Hydrothermal Carbonization for Methylene Blue Adsorption

2019 ◽  
Vol 540 ◽  
pp. 012006
Author(s):  
Napat Kaewtrakulchai ◽  
Ampol Putta ◽  
Warit Pasee ◽  
Kajornsak Fuangnawakij ◽  
Gasidit Panomsuwan ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Carbon Nanofibers ◽  
Hydrothermal Carbonization ◽  
Methylene Blue Adsorption ◽  
Horse Manure ◽  
Magnetic Carbon

Methylene blue adsorption on graphene oxide/calcium alginate composites

2013 ◽  
Vol 95 (1) ◽  
pp. 501-507 ◽  
Author(s):  
Yanhui Li ◽  
Qiuju Du ◽  
Tonghao Liu ◽  
Jiankun Sun ◽  
Yonghao Wang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Calcium Alginate ◽  
Methylene Blue Adsorption

Electroviscous forces on a charged particle suspended in a flowing liquid

1997 ◽  
Vol 338 ◽  
pp. 1-34 ◽  
Author(s):  
R. G. COX
Keyword(s):  
Particle Size ◽  
Physical Mechanism ◽  
Aqueous Electrolyte ◽  
Complete Agreement ◽  
Dominant Contribution ◽  
General Shape ◽  
Flowing Liquid ◽  
Polar Fluid ◽  
Double Layer Thickness ◽  
Made In

The force on a charged solid particle (of general shape) suspended in a flowing polar fluid (e.g. an aqueous electrolyte solution) in the presence of a solid bounding wall (of general shape) is obtained for the situation in which the electrical double-layer thickness is very much smaller than the particle size (and the distance between particle and wall). The very general results so obtained are applied to the sedimentation of a charged spherical particle in an unbounded polar fluid (with no walls present) for which the drag force is found to be in complete agreement with Ohshima et al. (1984). However, there is disagreement between the present results and those obtained in a number of published papers owing to incorrect assumptions being made in the latter as to what physical mechanism gives rise to the dominant contribution to the electroviscous force on the particle.

Modification of graphene aerogel with titania nanotubes for efficient methylene blue adsorption kinetics

2021 ◽  
Vol 97 (2) ◽  
pp. 271-280
Author(s):  
Hongli Liu ◽  
Bo Gao ◽  
Wenjin Yuan ◽  
Hongyan Li ◽  
Jing Li ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Adsorption Kinetics ◽  
Titania Nanotubes ◽  
Graphene Aerogel ◽  
Methylene Blue Adsorption
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