6 results about "ZINC OLEATE" patented technology

The invention discloses a calcium-zinc stabilizer for PVC and a preparation method and application thereof, and relates to the technical field of calcium-zinc stabilizers. The calcium-zinc stabilizer for PVC comprises calcium-zinc composite soap, modified attapulgite, a beta-diketone stabilizer, graphene oxide, an antioxidant, a lubricant and a chelating agent, the calcium-zinc composite soap is formed by compounding calcium stearate, zinc stearate, epoxy soybean calcium oleate and epoxy soybean zinc oleate; the modified attapulgite is prepared by the following steps: dispersing pretreated attapulgite in an ethanol solution of a silane coupling agent, stirring, washing and drying; dispersing in a metal salt solution of titanium and zinc, stirring, centrifugally washing and calcining; by adding the modified attapulgite, the strength of the PVC is improved, titanium / zinc ions distributed in porous gaps in the attapulgite can play a role in capturing free radicals in the PVC and are not easy to separate out to influence the performance of the PVC, and the thermal stability of the PVC is remarkably improved when the titanium / zinc ions are matched with the calcium-zinc composite soap for use.

The invention relates to the technical field of semiconductor materials, and discloses a preparation method of band-gap-adjustable high-quality ZnInGa / CuInS / ZnS / ZnS colloidal quantum well nanocrystals, which comprises the following steps: synthesizing ZIGS quantum dots, mixing a zinc precursor, an indium precursor, a gallium precursor, a sulfur precursor, organic acid, organic amine and 1-octadecene, degassing, and heating to synthesize ZIGS nanocrystals; mixing the ZIGS nanocrystal, organic amine and 1-octadecene, degassing, heating, and injecting a copper, indium and sulfur precursor solution to obtain a ZIGS / CIS nanocrystal; mixing the ZIGS / CIS nanocrystal, organic amine and 1-octadecene, degassing, heating, adding a zinc oleate aqueous solution and the sulfur precursor solution a, reacting, and purifying to obtain the ZIGS / CIS / ZnS colloidal quantum well nanocrystal. And repeating the preparation steps of the ZIGS / CIS / ZnS colloidal quantum well nanocrystal to obtain the ZnInGaS / CuInS / ZnS / ZnS colloidal quantum well nanocrystal. According to the cadmium-free ZnInGa / CuInS / ZnS / ZnS colloidal quantum well nanocrystal prepared by the method, the optimal quantum yield is greater than 99%, and the luminescence peak position is tunable in the range of 533-742 nm.

The application relates to a preparation method of a multi-interface coupling indium phosphide quantum dot and an electroluminescent diode, and belongs to the field of semiconductor light emission, display and nanotechnology. In the application, tri (dimethylamino) phosphine is reacted with an indium halide oleylamine solvent at 160 DEG C to 200 DEG C to generate an indium phosphide nanocrystal core, then the temperature is increased to 300 DEG C to 350 DEG C, zinc oleate, tri-n-octylphosphine-selenium and tri-n-octylphosphine-sulfur are gradually injected, and a polar solvent and a crosslinking agent are injected; 3-5 quantum dots are high-temperature fused through interfaces to realize interface coupling, and a multi-interface coupling core-shell indium phosphide / zinc selenide / zinc sulfide quantum dot is obtained. The quantum dot has a unique coupling structure, can effectively inhibit photo-generated exciton Auger recombination, improve the charge transport performance of a quantum dot film, has higher stability and a higher fluorescence quantum yield, and can be used for preparing a high-efficiency electroluminescent diode with high tube efficiency and good working stability.

The invention provides a colloidal atomic layer deposition method for a wurtzite Zn-based nanosheet non-polar surface, and belongs to the technical field of chemical engineering. The zinc oleate ligand exchanges the original oleylamine ligand, the zinc oleate is deposited on a non-polar surface to form a Zn < 2 + >-rich polar surface, and then anion deposition is performed, so that epitaxial growth of a homogeneous or heterogeneous material in the thickness direction of the oil-soluble Zn-based nanosheet is realized, and the thickness of the Zn-based nanosheet is increased or a core-shell structure is constructed. The optical property of the Zn-based nanosheet is regulated and controlled by increasing the thickness and constructing the core-shell structure. According to the method, the problem that epitaxial growth in the thickness direction is difficult to realize on the non-polar surface of the nanosheet in the traditional colloid atomic layer deposition is solved.

The invention relates to the technical field of laser gain material synthesis, in particular to a low-threshold quantum dot laser gain film and a preparation method thereof. Comprising the following steps: in an inert gas atmosphere, preparing a zinc oleate precursor solution, a cadmium oleate precursor solution, a tri-n-octylphosphine-selenium precursor solution and a tri-n-octylphosphine-sulfur precursor solution; preparing a mixed solution on site, including a mixed solution A, a mixed solution B and a mixed solution C; preparing the core-shell quantum dots by adopting a step-by-step thermal injection method, namely preparing a core, a continuous gradient layer and a protective layer; purifying the core-shell quantum dots by using a purifying agent, and performing post-treatment to form a dispersion liquid; and spin-coating the dispersion liquid to a substrate by adopting a one-step spin-coating method, and annealing to form the low-threshold quantum dot laser gain film. The quantum dot core-shell material has the advantages that the prepared quantum dot core-shell material has a gradient energy level gradient structure, the quantum dots can obtain a smooth constraint potential barrier from the core to the shell through the gradient structure, non-radiative recombination of the quantum dots is improved, and the laser performance of the material is improved, namely the ASE threshold value of the quantum dots is reduced.

This invention belongs to the technical field of polymer flame-retardant composite materials and steel wire rope core conveyor belt cover adhesive, and relates to a flame-retardant cover adhesive for steel wire rope core conveyor belts and its preparation method. The cover adhesive uses ethylene-vinyl acetate copolymer (EVA) as the main polymer matrix, combined with zinc oleate-modified magnesium hydroxide, phosphorus-nitrogen grafted flame retardant, asymmetric triazine low-smoke synergist, and a partially silanized hyperbranched polyester polyol and cobalt neodecanoate interface promoting system. It possesses flame-retardant, low-smoke, steel wire rope interface adhesion, and moisture and heat retention properties.