Wetting Ability of a Phytopreparation and Their Associates With Polyelectrolytes

Yessimova, O.; Kumargaliyeva, Saltanat; Kerimkulova, Moldir; Mussabekov, K.; Toktarbay, Zh.

doi:10.31788/rjc.2020.1315566

Cited by 5 publications

(5 citation statements)

References 15 publications

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“…The phenomenon is due to unbalanced molecular forces at the water/solids interface, which causes surface tension. Low surface energy resists wetting [45,46]. The high contact angle of hydrophobized sand (151°) and glass (165°) confirmed the formation of superhydrophobic coatings (Figure 7).…”

Section: Contact Angle (Oca) Studymentioning

confidence: 81%

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Superhydrophobic SiO2/Trimethylchlorosilane Coating for Self-Cleaning Application of Construction Materials

et al. 2022

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This study has demonstrated, for the first time, the potential application of coatings to protect bricks or architectures against detrimental atmospheric effects via a self-cleaning approach. In this research, a facile fabrication method was developed to produce amorphous SiO2 particles and their hierarchical structures via applying trimethylchlorosilane (TMCS). They were fully characterized by various surface analytic tools, including a goniometer, SEM, AFM, zeta sizer, and a spectroscopic technique (FTIR), and then applied as super hydrophobic coatings on glass and sand. The characterization results revealed that the SiO2 particles are amorphous, quasi-spherical particles with an average diameter of 250–300 nm, and the hierarchical structures in the film were assembled from building blocks of SiO2 and TMCS. The wettability of the films can be controlled by changing the pH of the SiO2/TCMS dispersion. A super hydrophobic surface with a water contact angle of 165° ± 1° was achieved at the isoelectric point of the films. The obtained translucent super hydrophobic SiO2/TMCS coatings show good self-cleaning performances for glass and sand as construction materials. This study indicated that the superhydrophobic coatings may have potential applications in the protection of buildings and construction architectures in the future.

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Section: Contact Angle (Oca) Studymentioning

confidence: 81%

“…The phenomenon is due to unbalanced molecular forces at the water/solids interface, which causes surface tension. Low surface energy resists wetting [45,46].…”

Section: Contact Angle (Oca) Studymentioning

confidence: 99%

Superhydrophobic SiO2/Trimethylchlorosilane Coating for Self-Cleaning Application of Construction Materials

et al. 2022

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“…According to [ 71 , 72 , 73 , 74 ], the surfaces of most microbial cells and bacteria have a total negative charge. At the same time, many polycations and polyampholytes with antimicrobial properties are known [ 48 , 75 , 76 , 77 , 78 , 79 , 80 ]. Therefore, considering this, we can propose the following mechanism for suppressing the growth of SRB in the presence of a polycation-DADMAC–DMAPMA copolymer.…”

Section: Resultsmentioning

confidence: 99%

A Novel Cationic Polymer Surfactant for Regulation of the Rheological and Biocidal Properties of the Water-Based Drilling Muds

et al. 2023

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The copolymer of N,N-diallyl-N,N-dimethylammonium chloride and N-[3-(Dimethylamino)propyl]methacrylamide (DADMAC–DMAPMA) was synthesized by radical polymerization reaction in an aqueous solution in the presence of the initiator ammonium persulfate (NH4)2S2O8. The molar compositions of the synthesized copolymers were determined using FTIR and 1H NMR-spectroscopy, elemental analysis, and conductometric titration. It was found that in the radical copolymerization reaction, the DMAPMA monomer was more active than the DADMAC monomer; for this reason, the resulting copolymers were always enriched in the DMAPMA monomers. The study of the influence of the DADMAC–DMAPMA copolymer on structure-formation in the bentonite suspension showed that this copolymer significantly increased the static shear stress (SSS) of the system. In this case, the structure-forming properties of the copolymer depended on the pH of the medium. The lower the pH level, the better the structure-formation was in the suspension in the presence of the copolymer. The study of antibacterial activity showed that the DADMAC–DMAPMA copolymer had a biocidal effect against sulfate-reducing bacteria (CRB) at a concentration of not less than 0.05 wt.% and can be used to inhibit the growth of this bacteria.

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“…Weng et al modified natural polysaccharides with DMAA and obtained highly porous hydrogels with high mechanical strength. Even though the obtained hydrogel contained more than 90% water, it still withstood high compressive strength [ 57 , 58 , 59 ]. Furthermore, in Figure 5 , hydrogels with and without the addition of DMAA were demonstrated.…”

Section: Nn-dimethylacrylamide Hydrogels For Enhancing Mechanical Properties Of the Materialsmentioning

confidence: 99%

A Short Review on the N,N-Dimethylacrylamide-Based Hydrogels

Akhmetzhan

Myrzakhmetova

Amangeldi

et al. 2021

Gels

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Scientists have been encouraged to find different methods for removing harmful heavy metal ions and dyes from bodies of water. The adsorption technique offers promising outcomes for heavy metal ion removal and is simple to run on a large scale, making it appropriate for practical applications. Many adsorbent hydrogels have been developed and reported, comprising N,N-dimethylacrylamide (DMAA)-based hydrogels, which have attracted a lot of interest due to their reusability, simplicity of synthesis, and processing. DMAA hydrogels are also a suitable choice for self-healing materials and materials with good mechanical properties. This review work discusses the recent studies of DMAA-based hydrogels such as hydrogels for dye removal and the removal of hazardous heavy metal ions from water. Furthermore, there are also references about their conduct for self-healing materials and for enhancing mechanical properties.

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Wetting Ability of a Phytopreparation and Their Associates With Polyelectrolytes

Abstract: 2 Specialized gymnasium for gifted children teaching in three languages named after Al-Farabi,

Cited by 5 publications

References 15 publications

Superhydrophobic SiO2/Trimethylchlorosilane Coating for Self-Cleaning Application of Construction Materials

Superhydrophobic SiO2/Trimethylchlorosilane Coating for Self-Cleaning Application of Construction Materials

A Novel Cationic Polymer Surfactant for Regulation of the Rheological and Biocidal Properties of the Water-Based Drilling Muds

A Short Review on the N,N-Dimethylacrylamide-Based Hydrogels

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