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55results about "Pigment flushing" patented technology

Water-based aluminum silver slurry and preparation method thereof, as well as application of water-based aluminum silver slurry in ink

The invention provides water-based aluminum silver slurry and a preparation method thereof, as well as application of the water-based aluminum silver slurry in ink. The preparation method comprises the following steps: (a) mixing oil-based aluminum silver slurry with an alcohol solvent, and carrying out ultrasonic dispersion and solid-liquid separation in sequence to obtain a solid mixture; (b) mixing the solid mixture, the alcohol solvent, a pH value adjuster, a silane coupling agent and tetraethoxysilane, and carrying out reaction, then aging and solid-liquid separation to obtain aluminum-coated silver slurry; (c) drying the aluminum-coated silver slurry to obtain aluminum silver powder; (d) mixing the aluminum silver powder with a solvent, and carrying out solid-liquid separation to obtain the water-based aluminum silver slurry. According to the water-based aluminum silver slurry and the preparation method thereof, the oil-based aluminum silver slurry is washed with the alcohol solvent to wash off fatty acid in the oil-based aluminum silver slurry, so that the oil-based aluminum silver slurry can be better dispersed in the alcohol solvent, and wrapping of aluminum silver slurry is better realized; due to the combination of a drying and solvent mixing treatment method, the obtained water-based aluminum silver slurry is relatively low in volatile organic compound and can meet higher requirements; the application field of the water-based aluminum silver slurry is expanded, and the stability of the water-based aluminum silver slurry is high.
Owner:长沙族兴新材料股份有限公司

Antioxidant metal-like plastic master batch and preparation method thereof

The invention relates to the field of plastic master batches, and discloses an antioxidant metal-like plastic master batch and a preparation method thereof. The preparation method comprises the following steps: (1) performing ultrasonic cleaning on a metallic pigment powder by using a cleaning agent solution to obtain the cleaned metallic pigment powder; (2) adding titanium fluozirconate, gamma-aminopropyltriethoxysilane, a buffer agent, a coalescing agent and an antirust agent into water to obtain a coating solution; (3) spraying the coating solution on the surface of the cleaned metallic pigment powder, standing, washing with water, filtering and drying to obtain an antioxidant metallic pigment; and (4) mixing, extruding and granulating a carrier resin, a dispersing agent, a coupling agent and the antioxidant metallic pigment to obtain the antioxidant metal-like plastic master batch. According to the invention, the surface of the metal pigment powder is cleaned and then coated with acomposite ceramic membrane, so that the prepared metal-like plastic master batch has excellent oxidation resistance and corrosion resistance, and can keep good metallic luster and texture of metal-like plastic in long-term storage and use.
Owner:CHENDU NEW KELI CHEM SCI CO LTD

Preparation method of high-dispersity ultramarine pigment, pigment obtained through preparation method and application of pigment

The invention discloses a preparation method and application of a high-dispersity ultramarine pigment, and the preparation method comprises the following steps: dissolving an ultramarine raw material in a solvent to form pigment color paste, and then adding the pigment color paste into a ball milling tank containing mixed zirconia beads; adding diethylene glycol dichloro-formate, an acid-binding agent and a catalyst into a ball-milling tank, sealing the tank, and putting the ball-milling tank into a ball mill for ball-milling reaction to obtain an acylating chlorination ultramarine dispersion liquid; after the reaction is finished, opening the ball-milling tank, adding excessive diethylamine into the ball-milling tank, sealing the tank, and continuing the ball-milling reaction; and finally, removing the solvent from the mixed solution, washing with ethanol and deionized water, and finally drying and grinding to obtain the modified ultramarine pigment. The modified ultramarine prepared by taking diethylene glycol dichloro-formate as a bridging agent and diethylamine as a modifier has better dispersity and dispersion stability in CR39 resin, and colorless and transparent lenses can be obtained after curing.
Owner:NANJING UNIV OF TECH +1

High-thermal-conductivity boron nitride powder filler and preparation method thereof

The invention discloses a high-thermal-conductivity boron nitride powder filler and a preparation method thereof. The high-thermal-conductivity boron nitride powder filler is prepared from sodium hydroxide, boron nitride, an epoxy silane coupling agent, absolute ethyl alcohol and deionized water. The mass percentage of each component is as follows: 15 to 25 parts of sodium hydroxide, 40 to 60 parts of boron nitride, 20 to 30 parts of epoxy silane coupling agent, 10 to 20 parts of absolute ethyl alcohol and 5 to 10 parts of deionized water. The preparation method is safe and reliable, the microsphere boron nitride easily forms a heat conduction network, the particle size of the boron nitride is optimized, the heat conduction effect of the filler is improved, the wet modification process conditions of the epoxy silane coupling agent on the boron nitride powder are optimized, so that the boron nitride powder has good compatibility with organic matters, and the viscosity, the oiliness, the water content and the like meet the technical index requirements; and the process is simple and rigorous, can replace other expensive high-thermal-conductivity boron nitride powder filler production processes, has the advantages of significant effect, cheap raw materials and low cost, greatly saves the production cost, and is beneficial to processing and production.
Owner:东莞东超新材料科技有限公司

Preparation method of high-weather-resistance and high-dispersion plastic color master batch titanium dioxide pigment

The invention relates to a preparation method of a high-weather-resistance and high-dispersion plastic color master batch titanium dioxide pigment, and the method comprises the following steps: producing a titanium dioxide primary product by a chlorination process, pulping in desalted water to prepare a slurry, regulating the pH value with an inorganic acid or alkali, dispersing, and grinding; heating the slurry, adding an alkaline aluminate compound, and simultaneously maintaining the pH value constant by using inorganic acid or an acidic aluminum compound to form an inorganic aluminum film coating layer on the surface of titanium dioxide particles; adjusting the pH value by adopting an inorganic alkali solution, and adding a polysiloxane liquid containing an active group to form an organic silicon film coating layer; filtering with deionized water, washing, and drying; adding a citrate ester organic treating agent in the steam-pulverizing process, and performing steam-pulverizing treatment to obtain a titanium dioxide finished product. The advantages are that: the titanium dioxide pigment prepared by the method has high weather resistance, high whiteness, high covering power andexcellent dispersion processability, has low dust flying in the production and use processes, is environment-friendly, and is suitable for the application fields of high-end color master batches suchas polyolefin, engineering plastics and the like
Owner:中信钛业股份有限公司

Insulating heat-conducting additive, insulating heat-conducting material, preparation method of insulating heat-conducting material and light emitting diode

The invention discloses an insulating heat-conducting additive, an insulating heat-conducting material, a preparation method of the insulating heat-conducting material and a light-emitting diode, relates to the technical field of light-emitting diodes, and aims to enable the insulating heat-conducting material to have good heat-conducting property. The insulating and heat-conducting additive comprises a zero-dimensional insulating and heat-conducting filler, a one-dimensional insulating and heat-conducting filler and a two-dimensional insulating and heat-conducting filler; the zero-dimensional insulating and heat-conducting filler is connected with a first group, the one-dimensional insulating and heat-conducting filler is connected with a second group, and the two-dimensional insulating and heat-conducting filler is connected with a third group. The first group and the third group can be subjected to cross-linking reaction with the second group, so that a three-dimensional insulating heat-conducting network is formed among the zero-dimensional insulating heat-conducting filler, the one-dimensional insulating heat-conducting filler and the two-dimensional insulating heat-conducting filler. The insulating heat-conducting additive provided by the invention is used for improving the heat-conducting property of the insulating heat-conducting filler.
Owner:BULL GRP CO LTD

Amino polymerization inhibition modified heat-conducting particle and preparation method thereof

The invention relates to the technical field of additive manufacturing, in particular to amino polymerization inhibition modified heat conduction particles and a preparation method thereof. At present, according to a CLIP technology, oxygen must be continuously introduced into the bottom of a resin tank, an uncured liquid layer can be constructed at the bottom of liquid photosensitive resin to achieve continuous photocuring 3D printing only by adopting an expensive breathable Teflon film, and application and popularization of the CLIP technology are seriously limited through the method. Based on the problems, the amino polymerization inhibition modified heat conduction particles are provided, after being added into the epoxy resin-based liquid photosensitive resin for CLIP printing, the amino polymerization inhibition modified heat conduction particles can settle in the epoxy resin-based liquid photosensitive resin, and finally a layer of blind area is formed at the bottom of the epoxy resin-based liquid photosensitive resin. the amino polymerization inhibition modified heat conduction particles in the blind area can neutralize protonic acid generated in the photopolymerization reaction of the epoxy resin-based liquid photosensitive resin, so that CLIP printing can be realized.
Owner:本时智能技术发展上海有限公司

Washing technology of titanium dioxide after inorganic surface treatment

The invention discloses a washing technology of titanium dioxide after an inorganic surface treatment, and belongs to the technical field of titanium dioxide treatment. The invention provides a washing technology of titanium dioxide after inorganic surface treatment. The washing technology comprises the following steps: curing titanium dioxide slurry after an inorganic surface treatment, transferring the cured titanium dioxide slurry into a Buchner funnel, adding washing water into the funnel at a constant speed, keeping the liquid level of the washing water in the funnel at 1 / 3-2 / 3 of the height of the funnel, stirring while adding; stopping stirring and adding water when the use amount of the washing water reaches half of the total use amount, continuously adding the washing water to 1 / 3-2 / 3 of the height of the funnel after the filter cake is formed; and when the washing water is completely added and a certain number of cracks appears on the surface of the filter cake, stopping washing. By controlling the temperature and dosage of the washing water and the stirring condition of adding the washing water, the washing technology after an inorganic surface treatment of titanium dioxide in a laboratory is more effective, a better washing effect is achieved, and the washing efficiency is improved.
Owner:CHONGQING TITANIUM IND OF PANGANG GROUP
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