摘要:
Dispersion of particles of at least one oxide of at least one luminescent rare earth, disaggregated and stabilized in a hydrophobic liquid medium containing at least one surfactant, in which the said surfactant is a non-ionic surfactant having an HLB (hydrophilic-to-lipophilic balance) lower than 12.Method for preparing the dispersion.Varnish comprising the said disaggregated, stabilized and dispersed particles, and its method of preparation.Method for making substrates with the said varnish and substrate thereby marked.Method for identifying objects provided with a marking using the said varnish.
摘要:
A composition including: a dispersion of particles of at least one oxide of at least one luminescent rare earth, disaggregated and stabilized in a hydrophobic liquid medium to which at least one surfactant is added, in which said surfactant is a non-ionic surfactant having an HLB (hydrophilic-to-lipophilic balance) lower than 12.
摘要:
In the invention, use is made of at least one metal organosilicate polymer, in the form of particles, having one of the following formulae I and II: R4Si4Al2O8(OH)x, Formula I: R8Si8M6O16(OH)y, Formula II: for the protection from oxidation and/or electromagnetic radiation of a compound sensitive to oxidation and/or to electromagnetic radiation. The invention finds application in particular in the field of the protection from oxidation and photoaging of various materials.
摘要:
In the invention, use is made of at least one metal organosilicate polymer, in the form of particles, having one of the following formulae I and II: R4Si4Al2O8(OH)x, Formula I: R8Si8M6O16(OH)y, Formula II: for the protection from oxidation and/or electromagnetic radiation of a compound sensitive to oxidation and/or to electromagnetic radiation. The invention finds application in particular in the field of the protection from oxidation and photoaging of various materials.
摘要:
What is provided includes a nanoparticle of porous silica, incorporating at least one molecule of interest, the silica network inside said nanoparticle being functionalized by at least one group capable of setting up an ionic and/or hydrogen non-covalent bond with the molecule of interest, whereby the molecule(s) of interest is(are) linked to the silica network solely by non-covalent bonds. In addition, a method for preparing said silica particle and uses thereof is provided.
摘要:
The invention relates to a liquid metal emulsion. The emulsion according to the invention includes a liquid metal selected from among gallium, indium, and the alloys thereof, and a solvent that is an alkanethiol. The invention is useful in particular in the field of manufacturing thin films.
摘要:
The present invention relates to a silica particle comprising at least one complex of at least one lanthanide and of at least one ligand of formula (A) in which Z1, Z2 and Z3, which may be identical or different, each represent a group bearing an atom bearing a lone pair and/or a negative charge; R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11 and R12, which may be identical or different, each represent a hydrogen, an optionally substituted alkyl radical, an optionally substituted aryl radical, a halogen, a group —OR13 or a group —SR13, with R13 representing H, an optionally substituted alkyl group or an optionally substituted aryl group.
摘要:
The invention relates to the use of a metal organosilicate polymer as a dispersion-forming agent. The metal organosilicate polymer used in the invention has one of the following formulae I and II: R4Si4Al2O8(OH)x Formula I: R8Si8M6O16(OH)y Formula II: The invention finds application in the field of dispersions of hydrophobic compounds in water and of organophobic compounds in an organic solvent, in particular.
摘要:
The invention relates to the use of a metal organosilicate polymer as a dispersion-forming agent. The metal organosilicate polymer used in the invention has one of the following formulae I and II: R4Si4Al2O8(OH)x Formula I R8Si8M6O16(OH)y Formula II The invention finds application in the field of dispersions of hydrophobic compounds in water and of organophobic compounds in an organic solvent, in particular.
摘要:
The invention relates to a microfluidic device for making a liquid/liquid or gas biphasic system using a first liquid or a gas and a second liquid, non-miscible with each other, the device having a first hydrophobic surface for the second liquid, the first liquid forming a layer (6) on said first hydrophobic surface. The device comprises means for introducing a drop (7) of the second liquid into the layer of first liquid or gas and in contact with said first hydrophobic surface, and means for displacing the drop on said first hydrophobic surface along a determined path, the device having on the path of the drop, at least one wetting defect causing, upon passing of the drop over this defect, failure of the triple line of contact of the drop on the first hydrophobic surface and inclusion of first liquid (8) or gas into the drop.The invention also relates to the associated method.