39results about How to "The process preparation method is simple" patented technology

The invention discloses a filter material for cigarette filter and the preparation method. Based on the expanded cabo particles from <The Preparation Method of an Expanded Cabo Particles and Relevant Equipment> (Application No.: 200710065892.3), the expanded cabo particles are extracted, shaped and selected as so to become the required filter material. The filter material utilizes the waste in the cigarette production, which not only has significant economic benefits, but also is not necessary to be recycled, and will not cause the abrasion of equipment and affect the sensory quality of cigarette. The filter material is uniformly arranged on the filter tows so as to make a composite filter; as the composite is applicable to the cigarette, the smell of the cigarette will be more clear and soft, and the tar and nicotine content in the smoke gas can be reduced effectively. The invention has the advantages that: the operation is simple; the effect is remarkable, therefore the invention has a good applicable prospect.

The invention discloses the new function of the expanded tobacco stalk grain during preparing cigarettes, namely adding the expanded tobacco stalk grains into a filter core or shaped cigarette filter papers constituting the cigarette filter and then making the compound cigarette filter. The expanded tobacco stalk grain is made by using the wasted material during preparing the cigarettes, thus has low cost, but good toughness, which, therefore, is favorable for shaping the filter stick and producing cigarettes and will not abrading the equipment. The cigarette filter prepared has better filtering efficiency and adsorbing capacity, which, once applied in cigarettes, can effectively removing the injurious ingredients as tar and nicotine; the tobacco bois generated during burning will not impact the cigarette's sensing quality and also the recovery of the deposed cigarettes during preparing cigarettes.

The invention discloses a filter tip stick for a low-tar cigarette. A preparation method comprises the following steps of: (1) grinding expansive tobacco stem granules and sieving, and selecting expansive tobacco stem granules with particle sizes of between 20 and 80 meshes; (2) loading one or more than one humectant of oligomaltitol, D-pyranylgalacturonic acid, L-pyrrolidone carboxylic acid-Na, propylene glycol, glycerol, xylitol, sorbierite, Amimethylglycine, 1,3-butanediol, D-pyrane and honey on the expansive tobacco stem granules, and regulating the moisture content to be between 6 and 12 percent, wherein the humectant accounts for 0.5 to 2 percent of the weight of the expansive tobacco stem granules; (3) loading a top dressing flavor which is the same as a top dressing flavor used for preparing cut tobacco of a cigarette on the expansive tobacco stem granules; (4) spreading the expansive tobacco stem granules on nonwoven filter cloth or a paper filter element according to the adding amount of between 0.8 and 3,5mg/mm, and coiling to form a material stick; (5) coiling a white stick by using diacetate cellulose tows; and (6) alternately compounding the material stick and the white stick, wherein the white stick is close to a lip end, and the material stick is close to a cut tobacco end of the cigarette. The filter tip stick for the low-tar cigarette has the effects of reducing harm and tar and improving smoking quality of cigarettes.

The invention especially relates to a preparation method for a metallic element-doped iron oxide nanorod catalyst with photoelectrocatalytic performance, which belongs to the technical field of catalysis. The preparation method comprises the following steps: preparing iron oxyhydroxide with a nanorod structure by using a solution thermosynthesis method; and calcining a sample in a certain atmosphere so as to obtain a metallic element-doped iron oxide nanorod with a same structure. An iron oxide doped nanostructure prepared by using a hydrothermal method has uniform morphology, shows absorption characteristics in a visible light zone and catalyzes photoelectrocatalysis of water under radiation of UV visible light. The solution thermosynthesis method enables the doping degree, morphology and size of a prepared sample to be controllable. The method is simple and easily practicable; and the prepared metallic element-doped iron oxide nanorod catalyst has good application potential in fields like photoelectrocatalysis and electrochemical catalysis.

The invention discloses high-pressure molded UHMWPE/PA6 (ultrahigh molecular weight polyethylene/polyamide 6) alloy and a preparation method thereof. The preparation method comprises the following steps: mixing 30-70 parts by weight of ultrahigh molecular weight polyethylene, 70-30 parts by weight of polyamide 6 powder, 5-20 parts by weight of maleic anhydride-grafted ultrahigh molecular weight polyethylene, 0.5-5 parts by weight of maleic anhydride-grafted polyethylene wax and 0.1-1 part of an antioxidant, and performing mold forming to obtain the UHMWPE/PA6 alloy. According to the preparation method, maleic anhydride grafted ultrahigh molecular weight polyethylene is adopted as a compatilizer, and particle micronization treatment is carried out so that the particle sizes of ultrahigh molecular weight polyethylene, polyamide 6 and maleic anhydride-grafted ultrahigh molecular weight polyethylene are all 100-200 microns and at the same level, the compatibility and dispersity between ultrahigh molecular weight polyethylene and polyamide 6 are improved, and the prepared UHMWPE/PA6 alloy has excellent wear resistance and mechanical property.

The invention discloses a resistive random access memory structure and a preparation method of the small-size resistive random access memory, belonging to the technical field of CMOS (Complementary Metal Oxide Semiconductors) ultra large scale integrated circuits (ULSI). The resistive random access memory comprises a substrate; a lower electrode is arranged on the substrate; a resistive layer is arranged on an upper electrode; and an isolation layer and the upper electrode are arranged on the resistive layer, wherein the isolation layer is provided with a side wall. In the invention, the resistive change area of the resistive random access memory are effectively controlled in a way that the area of the upper electrode of the resistive random access memory is reduced, so that the fluctuation of parameters of the resistive random access memory is improved.

The invention relates to the technical field of semiconductor photoelectronic devices, in particular to a semiconductor laser cavity surface passivation film structure and a preparation method thereof. The semiconductor laser cavity prepares a cubic boron nitride (c-BN) film layer to serve as a passivation film of a laser cavity face, effectively reduces catastrophe optical damage of the laser cavity face, and improves reliability and stability of a laser device. After ion prewashing is conducted on the front cavity face and the back cavity face of a semiconductor laser bar, a magnetron sputtering method is adopted to deposit a cubic boron nitride (c-BN) layer on the front cavity face and the back cavity face of the bar, and then an anti-reflection film and a high-reflection film are respectively plated on the front cavity face and the back cavity face. The structure and the method can be applied to various semiconductor lasers.

The invention relates to a preparation method of a nitrogen-sulfur double-doped graphene negative electrode material by low-temperature molten salt method. The preparation method comprises the following steps: uniformly dispersing graphene oxide in deionized water, dissolving potassium thiocyanate in deionized water, uniformly mixing an obtained dispersion liquid with an obtained salt solution, and drying to obtain a compound; introducing the compound into a tubular furnace filled with inert gas to fully react, washing a reaction product with a large amount of deionized water after the reaction is finished, and drying to obtain the nitrogen-sulfur double-doped graphene negative electrode material. Compared with the prior art, industrial products which are low in price and easy to obtain are adopted as raw materials, high-temperature calcination is avoided, and the method has the advantages of being simple in synthesis process, high in controllability, low in cost, and wide in raw material range, and batch preparation can be realized. The prepared nitrogen-sulfur double-doped graphene has the advantages of high capacity, good cycling stability and the like as a lithium ion battery negative electrode material.

The invention relates to a high-performance intumescent fireproof felt and a preparation method thereof, and relates to the field of chemical materials. The fireproof felt comprises the following rawmaterials in parts by weight: 15-50 parts of a waterborne benchmark film-forming resin or emulsion, 10-30 parts of deionized water, 30-60 parts of fireproof flame-retardant filler, 10-15 parts of titanium dioxide, and 5-10 parts of a film-forming auxiliary agent. The beneficial effects are as follows: the preparation method is simple, and the equipment requirement is low; the selected raw materials do not contain any toxic components such as halogen, asbestos and the like, and the coating expands and does not ignite in the event of fire or high temperature, does not release the halogen-containing toxic gas, and belongs to the new generation of fire retardant coatings; the fireproof felt does not contain any organic solvents, is close to zero VOC emission, and is green and environment-friendly; the fireproof felt has the advantages and characteristics that carbon is formed in fire, the expansion foaming speed is rapid, the carbon-forming strength is high, the stability and integrity offoams can be maintained, and the like, the fireproof level can be high to F120, and the fireproof time is up to 120 min; and the intumescent fireproof felt has good damping and sound insulation effects.

The invention discloses a high light-transmitting fiber glass surface paper, which comprises sulfuric acid paper, and the two sides of the sulfuric acid paper are coated with an undercoat layer, a secondary coat layer and a protective layer in sequence, and the undercoat layer is copolymerized by carbon dioxide 80 parts of polyols, 18 parts of diisocyanates, 22 parts of chain-extending cross-linking agents and 14 parts of hydrophilic chain-extending agents; 7 parts of sustained-release microcapsules, 16 parts of ethyl acetate, 0.3 parts of white mineral oil and 10 parts of dye; the protective layer is made of 27 parts of hydroxyethyl cellulose ether, 2 parts of sodium lauryl sulfate, polypropylene Made from 4 parts of amide and 6 parts of triethanolamine; this kind of high-transmittance fiber glass paper can significantly improve the light transmission and surface smoothness of the fiber, and the surface smoothness of the paper after double-sided treatment is greater than 210 seconds, and at the same time The preparation method of the process is simple and the application range is wide.

The invention relates to an MOF@POP-n composite catalyst, a preparation method and application thereof, and belongs to the technical field of chemical catalytic materials. The preparation method comprises the following steps of: dissolving cyclite in toluene to obtain a solution A, dissolving 1-vinylimidazole in toluene to obtain a solution B, mixing the solution A and the solution B uniformly, performing heating for 12-24h at 100-120DEG C in an N2 atmosphere, and conducting cooling, filtering, and washing to obtain a precursor; and adding the precursor, divinyl benzene and MOF into an N, N-dimethylformamide solution containing azodiisobutyronitrile, carrying out ultrasonic treatment for 15-45min, performing heating for 24-48h in a nitrogen atmosphere at 120-160DEG C, conducting cooling toroom temperature, and performing separation to obtain the target product. The MOF@POP-n composite catalyst catalyzes epoxypropane and carbon dioxide to generate cyclic carbonate, the highest yield can reach 98%, and the conversion rate can still reach 90% or above after the MOF@POP-n composite catalyst is repeatedly used six times.

The invention provides a FeFET based on an anti-ferroelectric gate medium and an oxide semiconductor channel and a preparation method of the FeFET, and belongs to the field of micro-nano electronics. The FeFET device comprises an insulating substrate, a patterned back gate electrode layer is arranged on the insulating substrate, an anti-ferroelectric gate dielectric material layer is arranged on the back gate electrode layer, an oxide semiconductor material layer is arranged on the anti-ferroelectric gate dielectric layer and serves as a channel, and a source contact electrode and a drain contact electrode are arranged on the left side and the right side of the upper portion of the channel respectively. The work function difference between the back gate electrode layer and the oxide semiconductor material layer is 1 eV to 2 eV, a built-in electric field is provided for the anti-ferroelectric gate dielectric material layer, and the anti-ferroelectric gate dielectric material forms two different storage states. The anti-ferroelectric gate dielectric is used for replacing a traditional ferroelectric gate dielectric, and the oxide semiconductor channel is used for replacing a traditional silicon-based channel, so that the durability of the memory device is improved.

The invention discloses a preparation method of an iron-based powder metallurgy friction wheel. The preparation method comprises the steps that a blank A1 and a blank A2 are made from iron powder softmagnetic material, the blank A1 and the blank A2 are sintered in a continuous sintering furnace under the protective atmosphere of ammonia decomposition and liquid nitrogen mixed gas, a blank A3 is made from FWCuSn6Zn6Pb3-Tin bronze powder, A1, A2 and A3 are connected together to form a composite part C, the composite part C is put into a hydrogen sintering furnace for sintering and is dischargedafter cooling, a semicircular inner hole of the sintered part C is subjected to fine shaping treatment, and a rubber ring is bonded into an annular groove of the part C to obtain a finished product.Due to different atmosphere protection and secondary sintering, the sintering of a tin bronze ring and soft magnetic matrix material of the friction wheel is closely combined, the phenomenon of copperring falling off in the use of the friction wheel of a machined inlaid copper ring is eliminated, and the characteristics that the preparation method is simple, the material is saved and the production efficiency is high are achieved.

The invention relates to a diamond-mounted gold watch case manufacturing process. The process electroforms a gold watch case, presses a groove in the surface of the gold watch case, and fixes a diamond in the corresponding groove by electroforming. According to the diamond-mounted gold watch case prepared by the process, the process is simple in preparation method and can make the diamond firmly embedded in the gold watch case.

The invention provides a method for preparing a multifunctional composite material from caragana korshinskii and graphite tailings, and belongs to the field of composite material preparation. According to the invention, rich caragana korshinskii biomass resources and graphite tailing resources in China are utilized, and a novel composite material with multiple functions of water retention, slow release of humic acid and trace elements, soil pollution remediation and soil salt and alkali improvement is developed through integration of chemical, material and mineralogy methods. The requirements of agricultural development and ecological restoration on environment-friendly ecological materials are met, and a new way is provided for perfecting a closed-loop ecological chain of resource utilization-new material development-ecological restoration-economic appreciation and achieving the goal of circular economy development.

The invention relates to milk cow forage and particularly relates to a lactiferous fodder for milk cows and a preparation method therefor. A formula of the lactiferous fodder comprises the following ingredients in parts by weight: 5-15 parts of soybean meal, 5-10 parts of vegetable meal, 4-10 parts of peanuts, 30-50 parts of corn, 8-15 parts of wheat bran, 6-10 parts of synbiotics, 3-5 parts of brown sugar, 20-30 parts of calcium hydrogen phosphate and 0.5-2 parts of common salt. The preparation method comprises the steps of raw material pretreatment, synbiotics preparing, raw material mixingand the like. The lactiferous fodder can be used for effectively promoting proliferation of beneficial florae in intestinal canals of the milk cows at a gestational period and preventing pathogenic bacteria in the intestinal canals from being immobilized, features of the milk cows are effectively improved, the feed conversion is improved, casual excretion is promoted, the immune reaction of organisms is stimulated and strengthened, and the quality of output milk is improved; and the lactiferous fodder is simple in preparation method and is applicable to the milk cows at a period of gestation,the milk cows grow and develop rapidly and healthily, and the cost of feedstuff is also reduced.

A capsule for supplementing calcium to human body, increasing bone density, nurishing blood, beautifying face and treating rheumatic diseases is prepared from the power of fur seal's meat and bone, and calcium carbonate.