Results 31 to 40 of about 9,598,394 (297)

Synthesis and surface active properties of cationic surface active agents from crude rice bran oil

open access: yesGrasas y Aceites, 1999
Cationic surfactants of 2-hidroxy-3-(2- alkylamidopolyethyl amino) propane-1-triethylammonium hydroxides (ix-xui)a-d were prepared from fatty acids (i)a-d [palmitic, stearic, oleic, linoleic acid] and mixed fatty acids of crude rice bran oil ie [RBO ...
W. I. A. El-Dougdoug
doaj   +1 more source

The study of excipients’ influence on Clopidogrel releasing from the rectal suppositories

open access: yesAktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2018
Such cardiovascular pathologies as ischemic disease of heart and brain, occlusive diseases of peripheral arteries are the most frequent causes of morbidity, mortality and disability of population in the world.
Ye. А. Redkina   +3 more
doaj   +1 more source

Dynamic behavior of molten pool flow field for active laser welded-thick stainless steel plates

open access: yesMaterials Research Express, 2021
By combining numerical simulation and experimental investigation, this paper intensively investigated the influence rules of adding three active agents (SiO _2 , TiO _2 and NaF) on the dynamic behaviors of flow field in the laser welding 304 stainless ...
L-F Mei   +5 more
doaj   +1 more source

PREPARATION OF SOME SURFACE ACTIVE AGENTS AND DETERMINATION OF ITS PHYSICO CHEMICAL PROPERTIES [PDF]

open access: yesJournal of Plant Protection and Pathology, 2006
Two type of surface active agents anionic and nonionic were prepared from locally raw materials: Fatty acids (Iauric and palmitic) reacted with poly ethylene glycol (PEG) 400.
A. Khattab   +3 more
doaj   +1 more source

Intensifying the cement grinding process [PDF]

open access: yesE3S Web of Conferences, 2023
This article deals with the intensification of the grinding process in ball mills. Attention is drawn to the need to reduce the energy input for grinding.
Mukhamedbaeva Mas’uda   +2 more
doaj   +1 more source

Promoting the development of natural surface agents [PDF]

open access: yes, 2021
Surface active agents are used across many areas of industry, from cosmetics, to food, to nanomaterials. We spoke to Dr Stephen Euston, Dr Tony Gutierrez, Dr Sophie Roelants, Dr Muyiwa Akintoye, Dr Konstantinos Gardikis and Dr Jose Maria Abad about the ...
Abad, Jose Marie   +5 more
core   +2 more sources

Synthesis and evaluation of ?-hydroxy fatty acid-derived heterocyclic compounds with potential industrial interest

open access: yesGrasas y Aceites, 2006
T2-Hydroxyheptadecanoic acid chloride (2) reacted with anthranilic acid to produce 2-substituted-3,1-benzoxazin-4-one (3) which was used as starting material to synthesize some condensed and non-condensed heterocyclic compounds by reaction with nitrogen ...
A. M. F. Eissa, R. El-Sayed
doaj   +1 more source

Selected anionic and cationic surface active agents: case study on the Kłodnica sediments

open access: yesLimnological Review, 2017
Surface active agents (surfactants) are a group of chemical compounds, which are used as ingredients of detergents, cleaning products, cosmetics and functional products.
Olkowska Ewa   +3 more
doaj   +1 more source

Synthesis and evaluation of some surface active agents from long chain fatty amine

open access: yesGrasas y Aceites, 2007
This study continues our series of synthesis of surface active agents containing heterocyclic moiety. NHeptadecanoyl- 3-(4-oxo-4H-benzo[d][1,3]oxazin-2-yl)- acrylamide (4) was used as a new starting material to synthesize propenoxylated nonionic surface ...
A. M. F. Eissa
doaj   +1 more source

Active Agents Incorporated in Polymeric Substrates to Enhance Antibacterial and Antioxidant Properties in Food Packaging Applications

open access: yesMacromol, 2022
Active packaging has played a significant role in consumers’ health and green environment over the years. Synthetic polymers, such as poly(ethylene terephthalate) (PET), polyethylene (PE), polypropylene (PP), polystyrene, poly(vinyl chloride) (PVC ...
Johan Stanley   +5 more
doaj   +1 more source

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