摘要:
The invention relates to a method for producing metal nanoparticles, wherein metal ions are reduced by means of at least one reducing agent in the presence of at least one polymer stabilizer and are converted into metal nanoparticles. The invention further relates to metal nanoparticles obtained in this way and to the use thereof.
摘要:
The invention relates to a method for producing metal nanoparticles, wherein metal ions are reduced by means of at least one reducing agent in the presence of at least one polymer stabilizer and are converted into metal nanoparticles. The invention further relates to metal nanoparticles obtained in this way and to the use thereof.
摘要:
The invention concerns the use of cerium dioxide, especially in the form of discrete cerium dioxide particles with particle sizes in the range from 0.005 to 150 μm, as inorganic radical trap to stabilize organic polymers, especially in the form of polymer-based formulations, varnishes, paints, coating compounds, or the like, against their photochemically, thermally, physically and/or chemically induced degradation by free radicals, especially against the effect of UV, advantageously in an optional combination with at least one UV-absorber and/or at least one additional radical trap. The radical-induced degradation of the organic polymers is effectively prevented by the use of cerium dioxide without the cerium dioxide itself becoming degraded. If a combination of cerium dioxide with an additional UV-absorber or radical trap is used, its effectiveness is extended through the presence of the cerium dioxide.
摘要:
The invention relates to a method of dispersing carbon nanotubes (CNTs) in a continuous phase, especially in at least one dispersion medium, the carbon nanotubes, especially without prior pretreatment, being dispersed in a continuous phase, especially in at least one dispersion medium, in the presence of at least one dispersant (dispersing agent), with introduction of an energy input sufficient for dispersing, and also to the dispersions that are obtainable in this way, and to their use. With the method of the invention it is possible for the carbon nanotubes (CNTs) to be dispersed in high concentrations and with high storage stability.
摘要:
The invention relates to inorganic-organic composite particles, in particular composite nanoparticles, wherein the composite particles comprise at least one organically based material containing or being made of at least one wax and an inorganically based material, and to a method for the production thereof and to the use thereof.
摘要:
The invention relates to a method of dispersing carbon nanotubes (CNTs) in a continuous phase, especially in at least one dispersion medium, the carbon nanotubes, especially without prior pretreatment, being dispersed in a continuous phase, especially in at least one dispersion medium, in the presence of at least one dispersant (dispersing agent), with introduction of an energy input sufficient for dispersing, and also to the dispersions that are obtainable in this way, and to their use. With the method of the invention it is possible for the carbon nanotubes (CNTs) to be dispersed in high concentrations and with high storage stability.
摘要:
The invention relates to inorganic-organic composite particles having a core/shell structure, wherein the composite particles comprise an organically based core having at least one wax, and an inorganically based shell surrounding said core, and to a method for the production thereof and to the use thereof
摘要:
The invention concerns the use of cerium dioxide, especially in the form of discrete cerium dioxide particles with particle sizes in the range from 0.005 to 150 μm, as inorganic radical trap to stabilize organic polymers, especially in the form of polymer-based formulations, varnishes, paints, coating compounds, or the like, against their photochemically, thermally, physically and/or chemically induced degradation by free radicals, especially against the effect of UV, advantageously in an optional combination with at least one UV-absorber and/or at least one additional radical trap. The radical-induced degradation of the organic polymers is effectively prevented by the use of cerium dioxide without the cerium dioxide itself becoming degraded. If a combination of cerium dioxide with an additional UV-absorber or radical trap is used, its effectiveness is extended through the presence of the cerium dioxide.
摘要:
The present invention relates to a process for the production of titanium-containing oxide particles having an average primary particle size of 25 nm or less, which comprises the reaction of a hydrolysable halide-containing titanium compound with water in a reaction mixture comprising a polyol, and the particles obtainable thereby. The claimed method is suitable for an industrial upscale and allows the formation of concentrated stable and transparent dispersions in water without the aid of dispersing agents such as surfactants.
摘要:
Reactive system comprising at least one component (I) composed of particles in very finely divided form present in a liquid phase of at least one further component (II) with which component (I) is capable of reacting following activation through energy supply, wherein component (I) is not soluble in component (II), process for preparation and use.