Zobrazeno 1 - 10
of 515
pro vyhledávání: '"Gelation time"'
Autor:
ZDRAVKO MANEV, NADEZHDA PETKOVA
Publikováno v:
Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, Vol 25, Iss 2, Pp 109-120 (2024)
The aim was to investigate the influence of different calcium salts and gelation times on the structural-mechanical parameters of a pear composite jellies. Calcium citrate and calcium lactate with a concentration of 0.6 % and 1.2 % were used as sourc
Externí odkaz:
https://doaj.org/article/834e28b487f5476d8d9a6c217552617e
Publikováno v:
Petroleum, Vol 9, Iss 4, Pp 621-628 (2023)
To remediate the problem of severe or total losses, and meet the requirements of borehole plugging and pumping at different well depths, a novel crosslinked polymer gel (named HPG/Zr gel) with controlled gelation time and high gel strength was develo
Externí odkaz:
https://doaj.org/article/4fc22c357cf24b88b2fc1e54feb340ec
Autor:
Pengyan CHEN, Chunshan ZHOU
Publikováno v:
Meikuang Anquan, Vol 54, Iss 11, Pp 84-91 (2023)
In view of the problems of low cross-linking strength, poor mechanical performance and easy damage of the structure of single network gel fire preventing and extinguishing materials, two interactions are introduced to construct a dual physical cross-
Externí odkaz:
https://doaj.org/article/75f498b082ae484e9d5589e27e57aaf0
Autor:
Shaikh Mohammad Shehbaz, Achinta Bera
Publikováno v:
Petroleum Research, Vol 8, Iss 2, Pp 234-243 (2023)
Excess water production is one of the crucial complications in the oil industry, leading to a rapid decline in oil production. To overcome this problem, different polymer gels are used to block the water's path to reduce water production. In the pres
Externí odkaz:
https://doaj.org/article/9d57f9242fc14980ad13605df398a3ea
Publikováno v:
Gels, Vol 10, Iss 5, p 325 (2024)
The application results of profile control and water plugging technology are highly related to the gelation time and strength of phenolic resin hydrogel. In this work, a hydrogel solution was prepared by fully mixing the prepared polymer solution wit
Externí odkaz:
https://doaj.org/article/820dc800134946a582042b464dd96019
Publikováno v:
Arabian Journal of Chemistry, Vol 16, Iss 12, Pp 105324- (2023)
Various polymers are the most widely used product to provide rheology for water-based fracturing fluid, however, they have weaknesses in terms of temperature resistance and salt resistance. The change from organic-based to inorganic thickeners may be
Externí odkaz:
https://doaj.org/article/7bcc5c058e1842d186d8c62e8e97d1c4
Autor:
Rama Krishna Alla
Publikováno v:
Euromediterranean Biomedical Journal, Vol 17, Iss 37, Pp 170-174 (2022)
In dentistry, irreversible hydrocolloid impression materials are frequently utilised for making both preliminary and final impressions. Dental professionals are more likely to become contaminated by these materials. According to studies, using 1.0% w
Externí odkaz:
https://doaj.org/article/b0528f6a5e264d408ad1b0395eb17b6f
Autor:
Zeinab Fathalla, Wesam W. Mustafa, Hamdy Abdelkader, Hossam Moharram, Ahmed Mohamed Sabry, Raid G. Alany
Publikováno v:
Drug Delivery, Vol 29, Iss 1, Pp 374-385 (2022)
Purpose Thermosensitive in situ gels have been around for decades but only a few have been translated into ophthalmic pharmaceuticals. The aim of this study was to combine the thermo-gelling polymer poloxamer 407 and mucoadhesive polymers chitosan (C
Externí odkaz:
https://doaj.org/article/469ec0d9196a4136b5290c95f517ff81
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Akademický článek
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