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Liquid paraffin
About: Liquid paraffin is a research topic. Over the lifetime, 6185 publications have been published within this topic receiving 52956 citations.
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15 Aug 2004-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this article, the anti-wear properties of Ag nanoparticles as additives in liquid paraffin were investigated by a four-ball testing machine, which showed that coated nanoparticles with an average diameter of about 15 nm, are able to prevent water adsorption, and oxidation and are capable of being dispersed in organic solvents.
Abstract: Ag nanoparticles coated with di-n-octodecyldithiophosphate were chemically synthesized The structure of the prepared Ag nanoparticles was investigated by means of X-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, thermogravimetry analysis and differential thermal analysis The anti-wear properties of Ag nanoparticles as additives in liquid paraffin were investigated by a four-ball testing machine The coated Ag nanoparticles with an average diameter of about 15 nm, are able to prevent water adsorption, and oxidation and are capable of being dispersed in organic solvents Wear tests show that coated Ag nanoparticles as additives in liquid paraffin exhibit excellent anti-wear ability and can improve the load-carrying capacity of base oil effectively
46 citations
TL;DR: In this paper, the influence of the liquid environment on the reaction mechanism in slurry reactors has not been fully investigated, but it has been shown that liquid paraffin can influence surface relaxation, Mulliken charges, and adsorptive behavior of γ-Al 2 O 3 and AlOOH.
Abstract: The influence of the liquid environment on the reaction mechanism in slurry reactors has not been fully investigated. In this work, dimethyl ether (DME) synthesis from methanol dehydration over γ-Al 2 O 3 (1 1 0) and AlOOH (1 0 0) in liquid paraffin and in the gas phase is studied using density functional theory combined with the conductor-like solvent model. The liquid paraffin can influence surface relaxation, Mulliken charges, and adsorptive behavior of γ-Al 2 O 3 and AlOOH. For DME synthesis, liquid paraffin does not influence the reaction path over the γ-Al 2 O 3 surface, but influences its activation energy. Liquid paraffin influences the activation energy and also alters the reaction path of DME synthesis over AlOOH
46 citations
TL;DR: In this paper, a premix membrane emulsification method was used for the preparation of uniform-sized agarose beads with diameters less than 10 μm and agaroses content as high as 14 wt%.
46 citations
TL;DR: In this article, hierarchical titania (TiO 2 ) microspheres were synthesized through a facile solvothermal method and X-ray diffraction (XRD) and scanning electron microscope (SEM) measurements were used to characterize the structure of the as-prepared samples.
45 citations
TL;DR: The most important dermatologic problem of prolidase deficiency is chronic recurrent leg ulcers that are recalcitrant in healing and 5% glycine-5% proline ointment on leg ulcer with excellent results is used.
Abstract: To the Editor.— The most important dermatologic problem of prolidase deficiency1is chronic recurrent leg ulcers that are recalcitrant in healing. We used 5% glycine-5% proline ointment on leg ulcers with excellent results. Report of a Case.— The patient, now a 22-year-old woman, is the same patient as described previously.1She had never been free of recalcitrant leg ulcers despite various conventional therapies including topical application of antibiotics (gentamicin sulfate, colistin sulfate, polymyxin B sulfate, etc), leg bath in 0.01% potassium permanganate solution, oral administration of zinc sulfate (180 mg daily), and/or ascorbic acid (3 g daily). Oral L-proline (1 g daily) was also tried for two months with no apparent benefit. We decided to use topical proline and then a combination of topical proline and glycine on her leg ulcers. L-proline and/or L-glycine ground with a mortar and pestle was mixed in liquid paraffin (30 g) and
45 citations