33results about How to "Uniform and stable combination" patented technology

An environment-friendly porous bead-satellite nanoparticles composite which has excellent recovery and repeated usage performance and can be used as a catalyst, an antiviral agent, or an antimicrobial,a fabrication method thereof, a recovery method, catalyst, antibiosis or antiviral compounds are provided. The porous bead-satellite nanoparticles composite includes a porous bead, a molecule having a first end coupled to the surface of the porous bead and including a functional group at a second end, and satellite nanoparticles coupled to the functional group, wherein the porous bead may have a core-shell structure including a cluster core of nanoparticles and a porous bead shell covering the cluster core.

The invention relates to a colored stainless steel based on ion implantation and a preparation method thereof. The technical scheme is as follows: placing a stainless steel to be colored in a vacuum chamber of an ion implantation apparatus, vacuumizing to 0.1-1*10<-5>Pa, and implanting ions on the surface of the stainless steel to obtain the colored stainless steel, wherein the accelerating voltage for ion implantation is 10-100kV, and the ion implantation amount is 1*10<17>-1*10<19> ions / cm<2>; or placing a stainless steel to be colored in a vacuum chamber of an ion implantation apparatus, vacuumizing to 0.1-1*10<-5>Pa, and implanting ions on the surface of the stainless steel, wherein the accelerating voltage for ion implantation is 10-100kV, and the ion implantation amount is 5*10<15>-5*10<19> ions / cm<2>; and taking out, carrying out heat treatment, and cooling to room temperature in the furnace to obtain the colored stainless steel. The invention has the advantages of simple process and clean environment, and the obtained colored stainless steel has the characteristics of multiple color varieties, high reproducibility, uniform color, beautiful appearance, high durability and no separation. Compared with the stainless steel prior to preparation, the surface hardness and the corrosion resistance are obviously improved.

A method for ultraviolet curing an adhesive layer in a thermal transfer film is disclosed. The method includes the following steps: sticking the adhesive layer on a surface of printing stock through heating and pressurizing; peeling a carrier layer in the thermal transfer film to transfer an image layer in the thermal transfer film onto the surface of printing stock; and further curing the adhesive layer by subjecting to an ultraviolet radiation. The adhesive layer comprises prepolymer, reactive diluents, resin, curing agent and additives. The curing agent comprises cationic photoinitiator and free-radical photoinitiator. This method has the advantage of good curing effect, improved adhesive performance, lower curing shrinkage rate and excellent image surface smoothness.

The invention discloses a ferric oxide-supported copper nano-particle and its preparation method and its application in the preparation of root-blocking materials; The reduced copper nanoparticles, wherein, in each nanoparticle, the weight ratio of ferric iron tetroxide to reduced copper is 1:0.3-1.2. In this method, ferric ferric oxide nanoparticle balls are first dispersed in chloroform, then copper chloride solution, sodium citrate and hydrolyzed gelatin are added in sequence, stirred at a temperature of 40-50°C for 2-4h, washed, and the product is separated by magnetic absorption That is, copper nanoparticles supported by ferric oxide are obtained. In the present invention, the root-blocking effect of the root-blocking agent prepared by using ferric iron tetroxide-loaded copper nanoparticles as an additive depends on the interference of copper ions on substances in plants, and the destruction of root cell membranes when copper ions come into contact with root cells, thereby inhibiting taproot. Growth, promote the growth of lateral roots, and achieve the effect of root resistance and anti-puncture.

The invention discloses an asynchronous cold rolling forming process of an aluminum alloy stainless steel clad plate, which comprises the following process steps: adopting an asynchronous rolling method to roll and clad the stainless steel plate and the aluminum alloy plate; after the asynchronous rolling, diffusion annealing the clad plate; In the S1 step, the opposite surface of the composite plate surface of the stainless steel plate is heated online, and the opposite surface of the composite plate surface of the aluminum alloy plate is cooled online, and the heating temperature is 350 ° C to 850 ° C; The temperature of the clad plate surface of the stainless steel plate of the clad plate is lower than 650°C, and the temperature of the clad plate surface of the aluminum alloy plate rolled out of the clad plate is lower than 300°C; the rolling reduction rate is 20% to 90%; the roll of the asynchronous cold rolling The speed ratio is 1.05-1.50; the thickness ratio of the aluminum alloy plate and the stainless steel plate is 1.5-4.0; in the S2 step, the annealing temperature is 250°C-500°C, and the annealing time is 15-120min. The invention creatively proposes a one-side online heating process for rolling a composite plate to improve the bond strength of the interface of the composite plate and realize rolling and compounding in a semi-molten state of the interface.

An edible oil containing proportionally fatty acids, especially the linolenic acid, is prepared through biologic enzyme catalyzed esterifying reaction between soybean oil and N3 (or N6)-series poly-unsaturated-fatty acid including proportionally saturated fatty acid, mono-unsaturated-fatty acid, poly-unsaturated-fatty acid and linolenic acid.

An edible oil containing proportionally fatty acid composed of saturated fatty acid, mono-unsaturated-fatty acid and poly-unsaturated-fatty acid is prepared through enzyme-catalytic synthesis reaction between the plant oil rich in N6-series poly-unsaturated-fatty acid and the plant oil rich in N3-series one.

The invention discloses a waterborne acrylate adhesive powder with a core-shell structure and a preparation method thereof. The preparation method comprises the following steps of firstly, adding an emulsifier into water; then, adding a soft monomer, a hard monomer and a functional monomer, uniformly mixing, and magnetically stirring, so as to form a pre-emulsifier; heating to 75 to 80 DEG C, adding a buffer solution into a reactor, dripping 20 to 50% of pre-emulsifier by mass and 1 / 2 to 3 / 4 of initiator by mass under the N2 (nitrogen) atmosphere, and stirring to react, so as to prepare a primary emulsifier; after warming, dripping the left initiator and pre-emulsifier, adding a chain transfer agent, warming for 1 to 2h after the dripping is finished, cooling, and discharging the material;adding a coupling agent, nanometer calcium carbonate or SiO2 (silicon dioxide) and a polyvinyl alcohol water solution, dispersing, treating by ultrasonic waves at room temperature, spraying, and drying. The waterborne acrylate adhesive powder has the advantages that the environment-friendly and non-toxic effects are realized; the adhering property is guaranteed, and the good water-resistant property is realized; the waterborne acrylate adhesive powder can be used under the complicated and precise conditions; the production cost is low, the operation is simple, and the required time is short.