126results about How to "Play a role in modifying" patented technology

The present invention relates to one kind of catalyst for liquid phase alkylation of ethylene to prepare ethylbenzene and aims at raising the stability and regeneration performance of catalyst. The present invention adops beta-zeolite molecular sieve with SiO2/Al2O3 molar ratio of 10-50 as catalyst, and the catalyst is processed first with high temperature steam and then with organic acid before use, and this raises the stability and regeneration performance of catalyst. The present invention may be used in the industrial production of liquid phase alkylation to prepare ethylbenzene.

The invention relates to a preparing method of a sodium-ion battery cathode material, and particularly relates to a preparing method of a manganese-based sodium cathode material. The preparing method includes mixing a sodium-containing compound and a manganese-containing compound according to a ratio that the molar ratio of Na to Mn is larger than 1; sintering at 600-1000 DEG C for 6-20 h; cooling to the room temperature to obtain a sintered product; smashing the sintered product; performing washing/solid liquid separation repeatedly for a plurality of times; and drying to obtain a final product. According to the method, the excess sodium-containing compound is adopted to increase the solid phase reaction speed between the sodium-containing compound and the manganese-containing compound and to increase the conversion rate. Modification of an alkaline intermediate is utilized to enhance the electrochemical activity of the product. Excess sodium-containing by-products after the reaction is finished can be removed in the washing/solid liquid separation step.

The invention relates to ultraviolet-cured silicone rubber for DIW (direct ink writing) 3D (three-dimensional) printing and a preparation method thereof. The ultraviolet-cured silicone rubber is prepared from the following raw materials in percentage by weight: 50-80% of polysiloxane containing unsaturated groups, 1-10% of a sulfydryl-containing cross-linking agent, 0.1-10% of a photoinitiator, 1-10% of rheological modifier, 6-40% of a filler and 5-20% of reinforcing resin. According to the ultraviolet-cured silicone rubber and the preparation method thereof, the polysiloxane containing the unsaturated groups, the sulfydryl-containing cross-linking agent and the rheological modifier are subjected to quick reaction and curing under ultraviolet irradiation, proper rheological property enables DIW (direct ink writing) 3D (three-dimensional) printing to be carried out more efficiently, a printed product has the characteristics of high elasticity and high strength, especially shows outstanding advantages in the aspect of the strength, meanwhile, has appropriate hardness, and has no unpleasant smell after being cured, the toxicity is low, the pollution is small, and the size precision controllability of a printing material is realized.

The invention relates to a device and a method for oxidizing and removing elemental mercury by using wet flue gas desulfurization wastewater. The device comprises a boiler, wherein the boiler is connected with a SCR (Selective Catalytic Reduction) denitration device through a coal economizer; the SCR denitration device is connected with a limestone-gypsum wet desulphurization tower through an air pre-heater and a dust remover; a chimney is arranged on the limestone-gypsum wet desulphurization tower; atomizing nozzles are distributed in a flue between the coal economizer and the SCR denitration device; the atomizing nozzles are connected with a desulfurization wastewater tank through a slurry pump; an air compressor is connected with the atomizing nozzles and used for supplying compressed air for the atomizing nozzles in the atomizing process. By virtue of the device and the method, the problem that combustion low-chloride coal elemental mercury is difficultly discharged is solved, and the problem of treatment of the desulfurization wastewater is solved.

The invention discloses a manufacturing method of ultra-purity industrial pure iron and belongs to the technical field of metal smelting. The manufacturing method comprises steps as follows: (1) EBT smelting; (2) LF smelting; (3) vacuum degasing by a VD furnace; (4) casting. According to the manufacturing method, a slag system CaO+CaF2+CaC2 and a lanthanum-cerium alloy are adopted in the LF smelting step for deoxidization and desulfurization, and the content of various impurity elements is controlled within the range required by the technology. The manufactured ultra-purity industrial pure iron is purer, the sulfur content is controlled to be lower than 0.0008wt%, the residual element content is lower than 0.08wt%, and superior secondary hardened steel, high-class blade steel and stainless steel can be produced.

The invention discloses a zeolite-loaded silver antibacterial agent and a preparation method thereof, relating to an antibacterial agent, in particular to a zeolite-loaded silver antibacterial agent and a preparation method thereof. The zeolite-loaded silver antibacterial agent and the preparation method are characterized in that the bacteriostasis rate of the zeolite-loaded silver antibacterial agent is high, the zeolite-loaded silver antibacterial agent is used for producing high polymer material products, and the zeolite-loaded silver antibacterial agent still has the antibacterial performance even if the heat treatment temperature is 1100DEG C. The zeolite-loaded silver antibacterial agent comprises zeolite and silver, wherein zeolite accounts for 95%, and silver nitrate accounts for 5%. After the natural zeolite is subjected to sodium treatment, the natural zeolite and the silver nitrate carry out liquid phase ion exchange; after the zeolite and the silver nitrate fully react, the mixture is washed with distilled water until washing liquor contains no silver ions; and then, the obtained product is dried and sintered and is grinded into powder to obtain the zeolite-loaded silver antibacterial agent.

The invention discloses a high-density lithium manganate anode material and a preparation method thereof. The lithium manganate anode material comprises a dopant M1 and a dopant M2, wherein the dopant M1 is selected from at least one of TiO2, Sb2O5, Cr2O3, Al2O3, Co3O4 and rare earth oxide, and the molar ratio of Li:Mn:M1 in the lithium manganate anode material is (0.95-1.15):(1.85-2):(0.005-0.15); the dopant M2 is selected from at least two of V2O5, Nb2O5, CuO and ZnO, and the dopant M2 accounts for 0.05-3 wt% of the lithium manganate anode material in weight percent. In the invention, the solid-phase synthesis process which is simple and easy to control and has wide process range and low production cost is adopted; and the lithium manganate material has obviously increased volume specific capacity, excellent high-temperature performance and high safety and reliability.

The invention discloses a 90DEG C cracking-resistant moisture-resistant and flame-retardant polyethylene cable material and a preparation scheme thereof. The cable material is composed of the following components by weight: 60-90 parts of polyethylene, 10-20 parts of a vinyl copolymer, 10-20 parts of a compatilizer, 50-100 parts of a hydroxide flame retardant, 5-20 parts of sepiolite, 5-20 parts of a synergistic flame retardant, 1-3 parts of aminosilane, 1-3 parts of an antioxidant, 0.5-1.5 parts of an ultraviolet light absorber and 2-5 parts of a lubricant. The 90-DEG C cracking-resistant moisture-resistant and flame-retardant polyethylene cable material disclosed by the invention has the characteristics of resistance to a low temperature of -50DEG C, outstanding cracking resistance, insulativity and moisture resistance (volume resistivity of 70DEG C*168h after immersion), good flame retardance, low smoke, no toxicity and the like, also has the advantages of fast extrusion processingspeed, difficult generation of air holes, etc., and can be widely applied to an outer sheath layer of a 1kV-220kV cable.

The invention discloses an organic fertilizer and a preparation method thereof. The organic fertilizer comprises the following raw materials by weight: 12 to 16 parts of blue algae, 6 to 8 parts of diatomite, 20 to 22 parts of dunaliella, 15 to 17 parts of spinaciaoleracea, 12 to 14 parts of eucheuma, 6 to 8 parts of rice washing water, 14 to 16 parts of wormcast, 8 to 10 parts of apple snail, 25 to 27 parts of poultry dung, 12 to 16 parts of cottonseed meal, 7 to 9 parts of zoysia japonica, 12 to 16 parts of sudan grass, 13 to 15 parts of raphanussativus L., 18 to 20 parts of swill, 4 to 6 parts of an EM stock solution, and 18 to 20 parts of rauhkalk. The organic fertilizer is sufficient in fertility and high in efficiency.

The invention provides a hollow light-transmitting integral stone decoration vertical column. The hollow light-transmitting integral stone decoration vertical column comprises a vertical column and aplurality of stone unit plates which are hung on the side face of the vertical column, wherein a plurality of groups of keels which are distributed at intervals in the longitudinal direction are fixedto the side face of the vertical column; the keels extend out of a hanging plate along the side face vertical to the vertical column; the stone unit plates comprise stone plates, steel frames and light-transmitting plates; the stone plates comprise arc-shaped chamfered parts with the thicknesses of the two ends being larger, and planar light-transmitting parts which are positioned between two arc-shaped chamfered parts and are thinner; splicing faces positioned on the side faces of the arc-shaped chamfered parts are slopes; the light-transmitting plates are stuck to the inner side faces of the planar light-transmitting parts; the steel frames are fixedly stuck to the inner side faces of the arc-shaped chamfered parts; the steel frames are fixed to the hanging plate of the vertical column;the splicing faces of the stone unit plates on each side face of the vertical column are spliced to form a complete vertical column decoration face; the steel frames are stuck to a bottom plate; thebottom plate is provided with an LED (Light Emitting Diode) lamp strip. The hollow light-transmitting integral stone decoration vertical column has the characteristics of good decorative face integrity and high attractiveness.

The invention discloses an environment-friendly mold release agent. The environment-friendly mold release agent is prepared by mixing methylsilicone oil, polyvinyl alcohol, span 60, addition agents, water and other components. The environment-friendly mold release agent has the characteristics that operation is safe, pollution is avoided, human health is not damaged, and using is convenient. The environment-friendly mold release agent has the characteristics of being good in stability, free of layering, low in cost and capable of meeting environmental protection requirement which are the same as those of a common mold release agent and also has the functions of sterilization, corrosion prevention and rust prevention. The mold release agent has strong selection adhesive power, can preferentially adhere to a mold without being transmitted to a forming piece and meanwhile has a modification effect on the surface of resin, the resin fluidity is facilitated, and the surface quality of the forming piece is improved.

The invention discloses a PPC/PLA/PBAT blend modified biodegradable resin prepared with a chain extender. The PPC/PLA/PBAT blend modified biodegradable resin is prepared from the following raw materials by weight: 25-30 parts of PPC; 40-50 parts of PLA; 25-30 parts of PBAT; and 0.3-0.8 part of a chain extender KL-E. The invention also discloses a preparation method of the resin. The chain extenderis added during blending to play a modification role during chain extension, thus improving the material compatibility. The method adopts a two-step process, firstly PPC and PBAT are subjected to blending granulation in a twin-screw extrusion granulator, then the obtained blend is mixed with PLA particles, the chain extender KL-E is dissolved into an ethyl acetate solution, by means of spraying,the chain extender KL-E can be evenly distributed in the mixed particles of PLA and PPC/PBAT and increase the compatibility of the three, the small chain molecules and free molecules in the three canbe extended into macromolecular materials, thus eliminating the disadvantage of easy hydrolysis of aliphatic resin structurally, at the same time enhancing the melt strength of the three, and guaranteeing the processing stability.

The invention relates to a preparation method of polymethoxymethylal, mainly solving the problem that in the prior art, the catalyst has corrosivity. The method comprises the following step: by taking methanol or dimethyl ether and formaldehyde or trioxymethylene as raw materials, contacting the reaction raw materials with a catalyst to generate the polymethoxymethylal under the conditions that the molar ratio of the methanol or the dimethyl ether to the formaldehyde or the trioxymethylene is 1: (0.1-10), the reaction temperature is 50 to 200 DEGC and the reaction pressure of 0.1-10 MPa, wherein a molecular sieve ZSM-5 with the size of less than or equal to 5 microns is adopted as the active component of the used catalyst. through using the technical scheme, the problem is solved well. The method provided by the invention can be applied to industrial production of the poly methoxy methylal.

The invention discloses a UV paint wood floor coating technology capable of imitating the reinforced plate style. The technology comprises the steps that grinding treatment is conducted on a plain panel of a floor, and dust is removed; the floor is coated with white waterborne primer paint in a roller coating mode with the coating amount of 15-20 g/m<2> and treated with a roughening brush and passes through an infrared drying channel; the floor is coated with a waterborne UV coloring agent in a roller coating mode for coloring with the coating amount of 10-20 g/m<2> and treated with the roughening brush, passes through the infrared drying channel and ultraviolet lamps and is placed to be air-dried; the floor is coated with waterborne glaze in a roller coating mode with the coating amount of 10-20 g/m<2> and manually brushed off and passes through the infrared drying channel; the UV paint coating technology is completed through a UV paint coating system. Accordingly, a wood floor produced through the technology is high in color decorous feeling and good in stereoscopic sensation; compared with an existing UV waterborne coloring technology for the wood floor, the technology is suitable for the coating style of wood floors exported to Europe, advantages on treatment of some low-level wood floor materials are achieved, and the usage rate of the wood floors can be increased.

The invention relates to an ultraviolet shielding film, and belongs to the technical field of polymer materials. According to the present invention, a resin base material is prepared from gallic acid,epoxidized soybean oil, epoxy ethyl chloride and other raw materials, wherein the gallic acid contains three hydroxyl groups and one carboxyl group, and is similar to bisphenol A so as to provide good thermal property and good mechanical property in the system; and castor silk fiber is sequentially treated with a dopamine liquid, chitosan, graphene oxide and the like, and the graphene oxide and the chitosan are subjected to layer-by-layer alternating deposition through the electrostatic adsorption between the graphene oxide and the chitosan so as to improve the surface activity and the ultraviolet protection property, such that the contained functional groups such as catechol, amino, imino and the like can be introduced into the surface, and the catechol group can reacts with the molecules containing amino and thiol to carry out secondary functionalization on the surface of the material so as to further improve the internal coupling degree and hierarchically improve the internal stability and the ultraviolet resistance.

The invention discloses an algaecide, a preparation method thereof and an algae removing method. The algaecide is prepared from the following raw materials of red earth and a flocculating agent which are (1.2 to 10) to 1 in mass ratio. In the algaecide disclosed by the invention, the flocculating agent has a modification function on the red earth, so that the problem of worse and instable sedimentation caused by single use of the flocculating agent is avoided, and the algae removing efficiency is increased.

The invention discloses a polishing solution for chemico-mechanical polishing of silicon carbide. The polishing solution comprises an abrasive, an oxidizing agent, a biological buffer solution, a pH regulator and an aqueous medium, wherein the abrasive is one or a mixture of silica sol (SiO2) and alumina sol (Al2O3), the weight percentage concentration of the abrasive is 1%-40%, the weight percentage concentration of the biological buffer solution is 0.05%-5%, and the weight percentage concentration of the oxidizing agent is 0.2%-10%; the pH value of the polishing solution is 7-11. The technical scheme of the invention aims to provide the polishing solution capable of effectively achieving excellent removal rate and roughness in an alkaline solution.

The invention relates to the technical field of lubricating sealing materials, and especially relates to a polytetrafluoroethylene composite material, and a preparation method and application thereof. The polytetrafluoroethylene composite material provided by the invention comprises, by mass, 60-70 parts of polytetrafluoroethylene resin; 20-30 parts of tin bronze powder; 5-10 parts of polyimide; 1-5 parts of glass fiber; 1-5 parts of graphite; 0.5-2 parts of an inorganic nano filler; and 0.05 to 0.2 part of a coupling agent. The particle sizes of the polytetrafluoroethylene resin, the tin bronze powder, the polyimide, the glass fibers and the graphite are micron-sized. The polytetrafluoroethylene composite material has relatively high strength and toughness at the same time.

The invention provides a polypropylene composite cable material and a preparation method thereof. The polypropylene composite cable material is prepared by, by weight, 100 parts of polypropylene resin, 0.5-1 part of nucleating agent, 0.4-0.9 part of antioxidant, 1-2 parts of lubricating agent, 3-4 parts of impact modifier, 10-15 parts of flame retardant, 5-10 parts of compatibilizer, 0.6-1.1 part of anti-ultraviolet agent and 14-19 parts of modified pottery clay. The polypropylene composite cable material is high in mechanical performance.

The invention discloses a castable for an insulating tube bus. The castable comprises the following raw materials in percentage by mass: 11-15% of epoxy resin, 2-5% of a curing agent, 1-3% of a toughening agent, 0.5-1% of an accelerant, 0.5-1% of a diluent, 55-65 wt.% of aggregate silica powder, 8-13% of filler alumina and 9-12 % of filler wollastonite. The castable for the insulating tube bus is high in acid resistance and alkali resistance after being cured, is hardly corroded by environmental acid and alkali, is high in compactness, is less than 0.05% in water absorption, is greater than 30MPa in breaking strength, is greater than 1T ohm in normal-temperature insulation resistance, and greatly improves the safety coefficient of an inorganic casting bus duct in use. Therefore, the insulating tube bus prepared from the castable has the characteristics of high insulativity, corrosion resistance, stable performance and the like.

The invention provides high-performance modified asphalt based on graphene and a manufacturing method. The high-performance modified asphalt consists of 70# matrix asphalt, graphene and stearamide; and the mass matching relationship of the 70# matrix asphalt, graphene and stearamide is as follows: the mass of the graphene is 20% that of the 70# matrix asphalt, and the mass of the stearamide is 1%that of the graphene. The high-performance modified asphalt has the beneficial effects that the high-performance modified asphalt based on graphene which is applicable to industrial production and themanufacturing method are provided.

The invention discloses a belt buckle. An integrated fixing ring is arranged at the inner side of the back end of a buckle plate, and the inner side of the front end of the buckle plate is provided with a buckle nail. The buckle plate, the fixing ring and the buckle nail are all made of gold. Being made of gold, the belt buckle is more precious than the traditional belt buckle, has unique color and luster as well as texture, and achieves the effect of embellishment on a wearer, moreover, can be a symbol of identity and status of the wearer. In addition, the belt buckle has simple structural design as well as fashionable and generous appearance, and can meet the requirements of high end users.