Results 11 to 20 of about 2,743 (170)

Synthesis and biodegradation testing of some synthetic oils based on ester [PDF]

open access: yesScientific Reports
Synthetic ester oils are widely used in many applications due to their ideal cleaning properties, lubricating performance and assured polarity. The majority of esters oils are more biodegradable. than any other base stock.
Reham I. El Shazly   +3 more
doaj   +2 more sources

Effect of the heating rate on crystallization and densification of TiO2 films prepared from alkoxide solutions containing various organic additives

open access: yesJournal of Asian Ceramic Societies, 2023
The effect of the heating rate on crystallization and densification of sol–gel-derived TiO2 films has been investigated. The TiO2 gel films were prepared from Ti(OC3H7i)4 solutions containing alcohols (2-butanol and 2-methoxyethanol), glycols (propylene ...
Hiroaki Uchiyama   +2 more
doaj   +1 more source

EFFECT OF SOME ADDITIVES ON THE ANTIMICROBIAL ACTIVITY OF KANAMYCIN AND GENTAMICIN IN OINTMENTS [PDF]

open access: yesBulletin of Pharmaceutical Sciences. Assiut University, 1983
Kanamycin and gentamicin ointments were prepared using four different ointment bases, namely oleaginous, absorption, emulsion and water-soluble bases.
A. Nouh   +3 more
doaj   +1 more source

Organics and inorganics in flow back and produced water from shale gas operations: treatment and identification of glycols using gas chromatography–mass spectrometry

open access: yesJournal of Water Reuse and Desalination, 2023
This study investigated the efficiency of different water treatment processes in reducing propylene glycol (PG), ethylene glycol (EG), ethylene glycol monobutyl ether (EGME), and other water quality parameters in flow back/produced water from a shale gas
Seongyun Kim   +7 more
doaj   +1 more source

Suitability of different supported Ru, Pt and Ni catalysts for the hydrogenolysis of sorbitol

open access: yesResults in Engineering, 2022
In this article, the results of sorbitol hydrogenolysis (15% aq. solution), done in an autoclave reactor, over Ru, Pt and Ni loaded on SBA15, carbon coated SBA15 (SBA15C), activated carbon (AcC), Na–Y, Fly Ash (FA) and hydroxyapatite (HAP) catalysts by ...
Thirunavukkarasu Kandasamy   +3 more
doaj   +1 more source

The effects of glycols on molecular mobility, structure, and permeability in stratum corneum [PDF]

open access: yes, 2022
The skin provides an attractive alternative to the conventional drug administration routes. Still, it comes with challenges as the upper layer of the skin, the stratum corneum (SC), provides an efficient barrier against permeation of most compounds.
Kis Nikolett   +7 more
core   +2 more sources

Ultrasonic and volumetric behaviour of glycols with sodium ethylparaben in aqueous medium from T = 293.15 to 308.15 K at atmospheric pressure

open access: yesResults in Chemistry, 2020
Volumetric and acoustic analysis is set in motion to inspect the sodium ethylparaben interaction with ethylene glycol, and propylene glycol as a function of temperature. The estimation of apparent molar volume and apparent molar isentropic compression of
Ashima, K.C. Juglan, Harsh Kumar
doaj   +1 more source

Zeta Potential of Nanosilica in 50% Aqueous Ethylene Glycol and in 50% Aqueous Propylene Glycol

open access: yesMolecules, 2023
A sufficient amount of ionic surfactants may induce a zeta potential of silica particles dispersed in water–glycol mixtures of about 100 mV in absolute value.
Marek Kosmulski, Marta Kalbarczyk
doaj   +1 more source

Relationship between Friction Coefficient, Contact Angle and Infrared Absorbance of Polypropylene Glycol on Metal Surface

open access: yesTribology Online, 2013
The kinematic viscosities in the undiluted solutions of propylene glycol and the polypropylene glycols were proportional to their molecular weights, but the friction coefficients and compressibilities in polypropylene glycols hardly depended on their ...
Kazuaki Hachiya, Takao Tanaka
doaj   +1 more source

Alternating polyesteramides based on 1,4-butylene terephthalamide: 4. alternating polyesteramides based on glycols (4NT glycol) [PDF]

open access: yes, 1998
Polyetheresteramides (PEEAs) have been synthesised in the melt from 1,4-butylene terephthalamide and ethylene or propylene glycols. The ethylene glycols were ethylenediol, diethylene glycol, triethylene glycol and tetraethylene glycol.
Gaymans, R.J., Serrano, P.J.M.
core   +1 more source

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