New PDF release: Applied Surfactants: Principles and Applications

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By Tharwat F. Tadros

ISBN-10: 3527306293

ISBN-13: 9783527306299

Whereas at present to be had titles both specialize in the fundamentals or on very particular subtopics, this article meets the necessity for a complete survey of surfactants and their homes, with a robust emphasis on purposes and their correlation to the basics.

the writer covers their type, actual houses, section habit, adsorption, results - akin to wetting, spreading and adhesion - in addition to commercial functions in own care and cosmetics, prescribed drugs, agrochemicals and foodstuff items.

Professor Tadros is a well known specialist related to surfactants, with a lot event in colloid technological know-how. right here, he makes use of his commercial adventure to shut the distance among basics of surfactants and their relevance and functions in perform.

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Additional info for Applied Surfactants: Principles and Applications

Sample text

C. c. 1. c. of the mixture decreases. c. 1. Fig. 9. anionic/nonionic mixtures, whereas values in the region of À10 to À20 are typical of anionic/cationic mixtures. With increasingly negative b, the mixed micelles tend towards a mixing ratio of 50:50, reflecting the mutual electrostatic attraction between the surfactant molecules. c. s as well as on b. c. is very sensitive to small variations in b. c. and the micellar composition are insensitive to variations of b. For mixtures of nonionic and ionic surfactants, b decreases with increasing electrolyte concentration.

By roughly a factor of 4. 1 Properties of Solutions of Surface Active Agents Tab. 1. c. values of some surface active agents. c. c. is, to a first approximation, independent of temperature. c. of SDS varies (by ca. 10–20%) non-monotonically over a wide temperature range. The shallow minimum around 25  C can be compared with a similar minimum in the solubility of hydrocarbon in water [4]. c. 3 for C10 E5 . Fig. 3. c. of SDS and C10 E5 [4]. g. c. can be very striking. , by up to an order of magnitude.

Association between surfactant and homopolymer in different concentration domains [24]. tion, independent of polymer molecular weight down to low values. For very low molecular weight the interaction is weakened. (3) The plateau binding increases linearly with polymer concentration. g. PEO and PVP) while cationic surfactants show a weaker but still significant interaction. Nonionic and zwitterionic surfactants only rarely show a distinct interaction with homopolymers. 12 gives a schematic representation of the association between surfactants and polymers for a wide range of concentration of both components [24].

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Applied Surfactants: Principles and Applications by Tharwat F. Tadros


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