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Showing 1 to 20 of 34 for “"nonionic surfactant"”.
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Solubilization-emulsification processes in nonionic surfactant-water-liquid triglyceride systems
… and cotton fabrics relatively ineffective with surfactants commonly used in washing products. It is likely that a process for effective triglyceride removal would involve a solubilization-emulsification mechanism. Intermediate phases such as microemulsions or liquid crystals form at the surface …
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Microemulsion and macroemulsion behaviour of systems containing oil, water and nonionic surfactant
… to water-in-oil (W/O) systems stabilised by pure nonionic surfactants of the poly-oxyethylene alkyl ether (CnEm) type. Initially however, a brief account is presented of the behaviour of W/O microemulsions stabilised by commercial nonionic surfactants of the type used in foods.A detailed study of …
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Effect of nonionic surfactant (X-100) on the rheological properties of aqueous polyacrylamide solutions
… cases, polyacrylamide comes into contact with surfactants which lead to a change in its rheological properties. In this study, an experimental work was carried out to investigate the effect of the nonionic urfactant (X-100) on the rheological properties of polyacrylamide, using cone-and-plate …
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Experimental investigation of the complex liquid liquid equilibrium in the system pure/technical grade nonionic surfactant + water + oil
Aufgrund verschiedenster Anwendungsmöglichkeiten sind tensidhaltige Systeme immer mehr Gegenstand universitärer aber auch industrieller Forschung. Das Phasenverhalten von Systemen des Typs nichtionisches Tensid + Wasser + Alkan ist in der Literatur sehr gut beschrieben. Ein wichtiges Merkmal dieser …
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Characterization of Surfactant Effects on the Visible Spectroscopy of Lanthanide Metal Ion-Triphenylmethane Dye Complexes (Microscopy, Polyvinylidene Fluoride, Electron, Polymethylmethacrylate, Blends)
… concentrations were considered, adding the nonionic surfactant Triton X-100 to the Gd('+3)-CAS complex had little effect.
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Effect of surfactants on the sorption and transport of Cu(II) in a sandy soil : batch, column experiments and modeling
Recently, surfactants have shown some potential for remediation of heavy metal contaminated soil, although research in this area has been limited. Batch and column studies were conducted to investigate the sorption processes and transport behavior of Cu(II) in a sandy soil in the presence of …
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Transport properties of micellar solutions and microemulsions.
Binary nonionic surfactant-water systems were studied prior to the more complex nonionic surfactant-water-oil systems. Phase diagrams were determined for the tetraoxyethylene dodecylether (C[12]E[4])-water and the Brij 30-water systems; the available hexaoxyethylene dodecylether (C[12]E[6])-water …
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Field, greenhouse, and laboratory evaluation of the efficacy and selectivity of the herbicide thifensulfuron for weed control in soybeans (Glycine max)
… of those of the similar herbicide chlorimuron. Nonionic surfactant or crop oil concentrate increased soybean sensitivity to thifensulfuron, but an adjuvant was required to obtain consistent seedling common lambsquarters (Chenopodium album L. #CHEAL) control. Chlorimuron and thifensulfuron …
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Clear, Aqueous Topical Nanomicelle Formulation For Diabetic Macula Edema
… (T1) were encapsulated with a combination of nonionic surfactant hydrogenated castor oil (HCO) and octoxynol-40 (Oc-40). A design of experiment (DOE) with JMP software was performed to optimize the formulation to delineate the effects of drug-polymer interactions. In this study, the amount of …
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Electrostatic and affinity enhancements of protein partitioning in two-phase aqueous micellar systems
… dehydrogenase (G6PD) in two-phase aqueous mixed (nonionic/cationic) micellar systems was investigated experimentally and theoretically. The successful enhancement, up to 22-fold, of the partitioning of the negatively-charged G6PD was attained by adding the positively- charged surfactant …
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Admicellar Polymerization to Compatibilize Calcium Carbonate With Oil-Based Drilling Mud
… organic styrene monomer within an admicelle of nonionic surfactant Triton X-100 adsorbed on the CC surface. BET N2 particle size analysis, Soxhlet extraction of the coated polymer, Fourier transform infrared-attenuated total reflectance (FTIR-ATR) spectra analysis, and thermogravimetric analysis …
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The application of algal growth potential techniques to surfactant and zinc toxicity studies
… techniques for testing the toxic effects of surfactants and zinc to an algal test organism. The algal growth potential techniques used included both static and continuous-flow algal bioassay procedures. The algal test organism selected was <i>Selenastrum capricornutum</i> Printz. The …
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Production of stable bcs class ii drug suspensions by melt emulsification and subsequent incorporation into polymer strip films
… of molten drug particles. The use of both nonionic surfactant Pluronic F68 and high-intensity ultrasound during cooling produces fenofibrate and ibuprofen suspensions with enhanced short-term physical stability. The optimized fenofibrate suspension is blended with hydroxypropyl …
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The damaging potential of pesticide formulations on human skin
… excipient responsible was the divalent anionic surfactant Phenylsulphonate CA. Another divalent anionic surfactant Empicol ML26/F also caused stratum corneum barrier function impairment. Protection against anionic damage was achieved using polyoxyethylated nonionic surfactants of the Synperonic …
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A fundamental investigation of surface-induced skin irritation
Surfactants frequently come in contact with the skin in the form of personal care products, where they are used to improve the wetting and oil solubilizing qualities of the products. Surfactants are also known to induce skin irritation by damaging the barrier properties of the stratum corneum, the …
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Investigation of Waterborne Epoxies for E-Glass Composites
… (EMI-24) in the presence of the nonionic surfactant Triton X-100. Interest in this epoxy system is due partially to the potential application as a waterborne replacement for solvent cast epoxies in E-glass laminated printed circuit boards. This research has revealed that the …
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The effect of spray adjuvants on the phytotoxicity of herbicides
… and flax (Linum usitatissimum L.) to selected nonionic surfactants (Triton XA, Wex and Renex 36) when applied with herbicides. In the greenhouse there were no significant differences in dry matter yield between plants treated with a herbicide plus additional nonionic surfactant in a tank-mix, …
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Solubilisation and emulsification of silicone oils in aqueous surfactant systems
… of polydimethylsiloxane (PDMS) oils into aqueous surfactant solutions have been investigated with a series of nonionic surfactants and an anionic surfactant (AOT).For nonionic surfactants at oil-water interfaces, the effect of temperature, surfactant structure, electrolyte concentration and PDMS …
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Effects of formulation conditions on micellar interactions and solution rheology in multi-component micellar systems
Surfactants are crucial to the personal care industry due to their unique surface activity, cleansing, and self assembly properties. Typically, multi-component systems are used in order to maximize mildness, hard water tolerance, and foaming. System morphology and viscosity are controlled through …
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Kelvin Probe Force Microscopy on Graphene Thin Films for Solar Cell and Biosensing Applications
… work, we have proposed ribonucleic acid (RNA), a nonionic surfactant, for exfoliation of graphite in single and few layered graphene flakes in water solution and the subsequent preparation of transparent and conducting graphene-RNA thin films. A number of pre- and post-deposition treatments were …
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