109results about How to "Facilitate penetration" patented technology

The invention relates to the technical field of lithium-ion cathode material, in particular to silicon cathode material coated with graphene and a preparation method of the silicon cathode material coated with the grapheme. The preparation method comprises the following steps: A, preparing oxidized graphene suspension liquid; B, preparing nanometer silicon particle suspension liquid; and C, preparing silicon cathode material coated with grapheme. The preparation method adopts the electrostatic self-assembly synthetic technology and is wide in source of raw material, low in price, simple in synthetic method, easy for control of process conditions, strong in operability and good in repeatability. The silicon cathode material coated with grapheme is high in specific capacity and good in cycle performance and rate capability, wherein the specific discharge capacity for the first time under the electric current density of 0.01-1.2V, 200mA / g can reach 2746mAh / g, and the specific discharge capacity after 100 times of cycles can maintain 803.8mAh / g.

The invention discloses a method for preparing a ceramic tile antifouling agent. The method for preparing the ceramic tile antifouling agent comprises the following steps of: mixing methyl hydrogen-containing silicone oil, fluoro silicone oil, amino silicone oil and a solvent at the temperature of 10-60 DEG C under a stirring action; adding an adjusting agent to adjust pH value of a system to be between 3 and 8; and continuously stirring for 10-60 minutes to obtain the ceramic tile antifouling agent. After being uniformly coated on the surface of a ceramic tile, the ceramic tile antifouling agent can infiltrate into the surface of the ceramic tile and form a stable chemical bonding action so as to form an organosilicon enhanced protection layer with hydrophobic and oleophobic properties, so that long-acting, high-luminosity and wash-resistant antifouling performance is realized. The ceramic tile antifouling agent prepared by the invention has the advantages of superior performance, wide application range and convenience for production, and is an ideal antifouling nursing agent for modern ceramic tiles.

The invention discloses a new dosage form of nanometer compound pesticide and a preparation method thereof, which is prepared by adopting modified nanometer TiO2, chitosan and technical product of pesticides as the raw materials, wherein, the modified nanometer TiO2 has improved mechanical property which is modified through sodium laurate. By utilizing the property of film build of chitosan, the chitosan and the technical product of pesticides react fully, a layer of film is formed on the surface of a spraying object, the film can reduce loss of liquid medicine, ensure more pesticide to be attached on crops, facilitate penetration of systemic pesticide and increase the safety for the operators of spraying and environment; the added modified nanometer TiO2 helps the film have certain intension and tenacity, thus achieving slow release and long effect of pesticide; meanwhile, by utilizing the antibacterial property of chitosan and nanometer TiO2, the effects of antibacterial property and getting rid of pests of pesticide are increased. The nanometer compound pesticide is a new dosage form of pesticide with the characters of long effect, safety, innocuity, economy and convenience.

The invention relates to a method for preparing modified loess with high adsorption performance. The method comprises the following steps of: (1) after stirring loess, distilled water and acrylic acid uniformly under room temperature, dropwise adding a NaOH solution with neutralization being 40-90% for neutralization to obtain a neutralization solution; (2) then adding hydroxyethyl methacrylate to the neutralization solution and stirring the materials uniformly to obtain mixed liquor; and (3) adding a crosslinking agent glycidyl methacrylate to the mixed liquor, heating the materials to 40-90 DEG C after introducing inert gases, finally adding an initiator ammonium persulfate, stirring the materials for 20-120 minutes when raising the temperature to 50-95 DEG C, thus generating a composite, and washing and drying the composite to a constant weight, thus obtaining the loess-based polymer composite adsorbent. The method has the following advantages that the natural loess is used as the raw material and is modified by acrylic acid and hydroxyethyl methacrylate to obtain the loess-based polymer composite adsorbent; and the loess-based polymer composite adsorbent is applied to treatment of wastewater containing heavy metal ions and dyes and has the characteristics of strong absorbability and large adsorption capacity.

The invention provides a method for preparing a titanium dioxide nanosheet coated graphene anode material of a lithium ion battery. The method comprises the following steps: a, preparing graphene oxide suspension: preparing graphite oxide by adopting a hummer method, and ultrasonically peeling graphite oxide in isopropanol to form graphene oxide suspension; and b, preparing the titanium dioxide nanosheet coated graphene material: adding a certain amount of diethylenetriamine into the graphene oxide suspension, uniformly stirring, adding butyl titanate, uniformly stirring, putting in a closed reaction kettle to perform solvothermal reaction, washing a solvothermal reaction product by using ethanol, drying, and processing at high temperature under the protective atmosphere so as to obtain the titanium dioxide nanosheet coated graphene anode material. By means of the preparation method disclosed by the invention, aggregation and overlapping in the reducing process of graphene can be effectively prevented; therefore, the electronic conductivity of the titanium dioxide nanosheet coated graphene anode material of the lithium ion battery is increased; and a research thought is provided for seeking the novel anode material of the lithium ion battery.

The invention discloses a valve-controlled type lead-acid storage battery. Lead plaster in a positive plate of the valve-controlled type lead-acid storage battery comprises the following active substances in percentage by weight: 68%-81% of lead powder, 3%-12% of red lead, 0.05%-0.15% of short fiber, 7%-11% of deionized water, 5%-10% of sulphuric acid with the density of 1.4g / mL and 0.2%-1% of additive; and the lead plaster in a negative plate of the valve-controlled type lead-acid storage battery comprises the following active substances in percentage by weight: 68%-82% of lead powder, 0.1%-0.3% of short fiber, 6%-15% of deionized water, 5%-15% of sulphuric acid with the density of 1.4g / mL, 0.1%-0.5% of acetylene black, 0.1%-1% of humic acid, 0.1%-1% of lignin and 0.5%-0.8% of barium sulfate. The valve-controlled type lead-acid storage battery produced according to the formulas of a positive electrode and a negative electrode has the advantages that the low-temperature discharge performance is substantially improved, and the discharge capacity at -40 DEG C reaches above 50% of the normal capacity.

The invention discloses an urban road rainwater regulation and storage system. The system comprises a water permeable pavement (1), and a grass planting furrow (2) and a water permeable side pavement (3), wherein the grass planting furrow (2) and the water permeable side pavement (3), and the water permeable pavement (1) are sequentially arranged in parallel; the water permeable pavement (1) comprises a foundation layer (11) and a water permeable asphalt surface layer (12), which are laid in sequence from bottom to top; the water permeable side pavement (3) comprises water permeable bricks (31) laid on the surface of the water permeable side pavement (3). According to the rainwater regulation and storage system disclosed by the invention, the water permeable pavement, the water permeable side pavement and the grass planting furrow between the water permeable pavement and the water permeable side pavement form the enhancing effects of purifying, filtering, regulating and storing ground surface rainwater, and the rainwater is effectively controlled and utilized, so that a sponge city is easily constructed; meanwhile, the rainwater regulation and storage system also has an afforestation landscape effect.

A tool for producing a thread such as an internal thread, can include at least one cutting region having at least one cutting edge and at least one thread-forming region. In general, the cutting region(s) and the thread-forming region(s) are coupled or connected to one another in such a way that they are rotatable or rotate together about a tool axis. In addition, at least one cutting region is at least partly formed on a front-face tool end and / or adjacent to a front-face tool end. Furthermore, a front-face recess that is configured for receiving chips is formed on the front-face tool end.

The invention discloses a preparation method of a lithium ion battery negative electrode material zinc manganate. The method is characterized in that the zinc manganate is prepared through a co-precipitation technology by using oxalic acid as a precipitating agent. The method concretely comprises the following steps: slowly dropwise adding an aqueous solution of a manganese salt and a zinc salt into an ethanol solution of oxalic acid, performing centrifuging, water washing, alcohol washing and vacuum drying to obtain a precursor, and carrying out high temperature calcination on the precursor to obtain the zinc manganate. The method has the advantages of simple process, low cost, large output, easiness in control, short cycle, and convenience in industrial production. The prepared zinc manganate has a meso-porous structure, has excellent specific capacity, cycle performances, rate performances and safety, and has an extremely wide application prospect as a lithium ion battery negative electrode material.

The invention provides a simulation ceramic tile and a preparation method thereof. The ceramic tile comprises a blank layer, a bottom glaze layer and a surface glaze layer, wherein the bottom glaze layer comprises penetrating ink; the maximum penetrating depth of the ink is the thickness of the bottom glaze layer; the penetrating width is fit with a grain boundary of a cross section, the blank layer comprises at least one pug layer and at least one powder layer, the most bottom layer of the ceramic tile is the pug layer, and at least one surface of the powder layer is in contact with the pug layer. Meanwhile, the preparation process of the ceramic tile is also provided, the penetrating depth and width of the ink pigment can be effectively controlled by optimizing and adjusting the ingredients, the process steps and the parameters, the grain fit degree between the bland body and the longitudinal section of the bottom glaze is high, the stereoscopic impression and simulation degree of the ceramic tile are greatly improved, meanwhile, due to the unique sintering process control, the bland body layer does not have a mutual penetration layer, thereby further improving the stereoscopic impression and simulation degree of the ceramic tile.

The invention provides a preparation method and the application of a silicon dioxide / biochar composite material. The preparation method comprises the following steps: mixing raw egg yolk with a water / ethanol mixed solution, uniformly stirring to form an egg yolk solution, dropwise adding ammonia water into the egg yolk solution, fully stirring, dropwise adding tetraethyl orthosilicate, and stirring to react at room temperature after dropwise adding is completed to obtain a silicon dioxide / egg yolk mixed solution; carrying out freeze drying on the silicon dioxide / egg yolk mixed solution to obtain silicon dioxide / biochar composite material precursor powder; putting the silicon dioxide / biochar composite material precursor powder into a tubular furnace, carrying out programmed heating to a calcination temperature in a protective atmosphere, calcining, and naturally cooling to room temperature after the calcination is finished; soaking the calcined material in a NaOH solution and a KOH solution respectively, centrifuging, washing and drying to obtain the silicon dioxide / biochar negative electrode material. The preparation method is simple, easy to operate and beneficial to large-scale preparation.

The invention relates to a pavement crack pouring machine synchronous preheating apparatus, and belongs to a matching technology specially used for improving the use performances of a pavement crack pouring machine. The apparatus is characterized in that a preheating crack cleaning channel (9) and a crack pouring material channel (10) are simultaneously respectively designed in a device in tandem, and the device is formed by a friction plate (1), an elastomer (2) and a valve mounting rack (3), wherein the inner side of the friction plate (1) completely clings to the front end surface, the rear end surface and the bottom surface of the elastomer (2), the obtained combination body is arranged at the front end and the rear end of the lower end surface of the valve mounting rack (3), a generating set exhaust pipe (8) on the crack pouring machine is connected with the preheating crack cleaning channel (9) through a high temperature resistant flexible pipe (4), and high temperature and high pressure tail gas discharged by the above generating set is used to carry out synchronous preheating impurity removal and crack pouring of the inside of a pavement crack.

The invention relates to a re-lined and renewed reactor after repair and a manufacturing method thereof which are used in the chemical and pharmaceutical industries and belong to the field of pressure vessels. A damaged glass-lined reactor which originally does not conform to the Supervision Regulation on Safety Technology for Pressure Vessel is repaired to become the re-lined and renewed reactor which comprehensively realizes the Supervision Regulation on Safety Technology for Pressure Vessel and can be repaired and utilized multiple times. The manufacturing method is characterized in that a precisely controlled inner heated electric furnace is adopted to implement staged controlled firing and an integral firing process with jackets; and full-automatic glaze slurry spraying equipment, an equipment large flange reshaping device and an electrical heating and temperature controlling insulating cylinder are adopted for manufacturing. The reactor and the manufacturing method have the following advantages: the reactor initiates and lays a foundation for that the manufacturing technology standards of the glass-lined reactors in China all realize the Supervision Regulation on Safety Technology for Pressure Vessel; the integral quality of the reactor is comprehensively and obviously superior to the current national standard; the reactor steps and is developed to innovate and be ahead of the conditions that the international outer heated electric furnace iron billets have no alternative to secondary forming during manufacturing and the core technology of controlled enamelling has the defect of uneven heating; and the reactor sells well in the international markets with the obvious omnibearing technical, quality and economic advantages and has obvious economic benefits and global market competitiveness.

Tooth whitening system comprising: - a toothbrush (1) with a body (2) surmounted with a head (3) with bristles (301) for brushing the tooth surface, at least one reservoir (201) containing a compound comprising at least one whitening agent, means, inside or outside said body, for conveying said compound from said reservoir (201) to the head (3) and for dispensing the compound at said bristles (301), means for increasing the pressure of the compound inside the reservoir (201) such to dispense said compound at said bristles (301) through said conveying and dispensing means.

The invention discloses an impregnation device for a fabric setting machine and belongs to the technical field of aftertreatment machinery of kitting textile fabrics. The fabric setting machine comprises a lead mechanism for leading fabric; the impregnation device comprises an impregnation groove and a mangle mechanism which is arranged above the impregnation groove; and the impregnation mechanism is characterized by also comprising a pre-impregnation mechanism which is arranged between the lead mechanism and the impregnation groove. The impregnation device has the advantages that: the pre-impregnation mechanism is arranged between the lead mechanism and the impregnation groove, so that fabric which is led by the lead mechanism can be impregnated before entering the impregnation groove, and a functional aid can permeate into the fibers of the fabric, so that the fabric can continuously exerts the functions during later use, and the functions are not lost by washing for limited times.

The invention discloses a CoO / rGO composite and a preparation method and application thereof, the CoO / rGO composite is formed by randomly distributing CoO nanorods in the shape of sugar coated haws ona stick on the surface of graphene, the CoO nanorods are composed of CoO nanoparticles, and a gap is arranged between adjacent CoO nanoparticles. The CoO / rGO composite is a double-effect catalyst fora lithium air battery. The CoO / rGO composite has good catalytic activity for both ORR and OER, and has very high battery capacity. The CoO / rGO composite has simple process, environmental friendliness, low cost and high efficiency and other characteristics.

The invention discloses making equipment of a dried Gong pear slice. The equipment includes a box body, the box body is equipped with an atomization chamber, a permeation chamber and a drying chamberfrom the head to the tail in order. The atomization chamber is communicated with the permeation chamber, the permeation chamber and the drying chamber are separated by a liftable baffle plate, and theatomization chamber is provided with a feed inlet and pipelines for introducing atomization liquid. The drying chamber is connected to a vacuum pump, and is equipped with an openable and closeable discharge port, and the inner wall of the drying chamber is provided with a cooling pipeline and a far-infrared electric heater. The three chambers in the box body are all equipped with conveying mesh belts. The outer side wall of the box body is equipped with a control plate and two motors driving the conveying mesh belts to move. The control plate is in electric connection with the two motors, anda switch in electrical connection with the far-infrared electric heater is disposed outside the box body. The equipment provided by the invention can perform physical and chemical color protection onthe Gong pear slice during preparation of the dried Gong pear slice, and the dried Gong pear slice has good color.

The invention relates to the technical field of lithium-ion cathode material, in particular to silicon cathode material coated with graphene and a preparation method of the silicon cathode material coated with the grapheme. The preparation method comprises the following steps: A, preparing oxidized graphene suspension liquid; B, preparing nanometer silicon particle suspension liquid; and C, preparing silicon cathode material coated with grapheme. The preparation method adopts the electrostatic self-assembly synthetic technology and is wide in source of raw material, low in price, simple in synthetic method, easy for control of process conditions, strong in operability and good in repeatability. The silicon cathode material coated with grapheme is high in specific capacity and good in cycle performance and rate capability, wherein the specific discharge capacity for the first time under the electric current density of 0.01-1.2V, 200mA / g can reach 2746mAh / g, and the specific discharge capacity after 100 times of cycles can maintain 803.8mAh / g.

The invention discloses a preparation method of a coconut velvet substrate vegetable culture substrate, belonging to the field of culture substrates. The preparation method comprises the following steps: smashing cocoanut shells, and then adding disodium ethylene diamine tetraacetate; separating to obtain filter residues, and then adding hydrogen peroxide and magnesium sulfate; separating again, and then taking supernatant liquid; adjusting the pH value, and then heating for concentrating; adding an ethanol solution, and standing to obtain semi-fibrosis coconut velvet substrate precipitates; and soaking the semi-fibrosis coconut velvet substrate and dehydrated egg white into the prepared nutrient solution, and then baking to obtain the coconut velvet substrate vegetable culture substrate. The coconut velvet substrate prepared by the method disclosed by the invention has better water absorptivity, air permeability and drainage property and has very strong water retaining capacity and fertilizer holding capacity, thereby being favorable for retention of water and permeation of nutrient solutions; the coconut velvet substrate is prepared from waste materials processed by coconut fruit shells, so that the cost is low; and the coconut velvet substrate is a fibrous matter and has a relatively good structure.

The invention discloses deep roadway prestress full-anchor supporting construction equipment and a construction method thereof. The deep roadway prestress full-anchor supporting construction equipmentcomprises an anchor bolt for being inserted into a roadway anchor hole, an injection machine for providing primary grout and secondary grout for the anchor bolt, and a pressure maintaining pipeline for being connected with the anchor bolt and the injection machine. The anchor hole is provided with an inner end and an outer end opposite to the inner end, the anchor bolt is coaxially inserted intothe anchor hole, and the anchor bolt is provided with a first end and a second end opposite to the first end. After the anchor bolt is coaxially inserted into the anchor hole, the first end is locatedat the inner end, and the second end is located at the outer end. An injection clearance exists between the periphery of the anchor bolt and the anchor bolt, and the injection clearance at the innerend of the anchor holt is used for allowing the first grout to be injected into, so that the first end of the anchor bolt is anchored; and the injection clearance at the other positions of the anchorhole is used for allowing the secondary grout to be injected into, so that the anchor bolt is anchored in the whole length direction. And a layered grouting manner is adopted, so that the more than 90% of the clearance in the anchor holt is filled with the grout, the compactness is high, and whole-length anchoring of the anchor bolt is achieved.

The invention relates to the field of papermaking, in particular to non-heat-seal type tea leaf filter paper. The filter paper is prepared by mixing paper mulberry bark pulp, bleached softwood pulp and viscose acetal fibers for papermaking, green natural polymer assistants are selected as chemical assistants added into the pulp, and the filter paper has the characteristics of complete natural circulation and biological decomposition. The invention also discloses a preparation method of the tea leaf filter paper. The preparation method comprises the following steps: (1) pulping; (2) preparing pulp; (3) forming on a net; (4) squeezing; (5) drying; and (6) slitting the roll paper. The tea leaf filter paper prepared by the preparation method has good dry and wet strength, uniformity and softness and high air permeability, is beneficial to permeation of tea fragrance, is light in weight, can save packaging cost for users, and has higher market competitiveness.

The invention discloses a process for preparing microcrystalline cellulose by cotton noils. The cotton noils are used for preparing the microcrystalline cellulose, and pretreatment mainly adopts low-dosage scouring-oxygen bleaching-soaping-washing processes. The dosage of additives used for cotton treatment is greatly reduced, a hydrolysis process of 6%-8% hydrochloric acid or sulfuric acid within the range of 60-80 DEG C is used for preparing the microcrystalline cellulose, and the high-purity microcrystalline cellulose is obtained while the industrial waste cotton noils are sufficiently used.

The invention discloses anti-warping glutinous rice glue and a preparation method thereof, and belongs to the technical field of building materials. Glutinous rice base glue is prepared by taking glutinous rice as a raw material for gelatinization, alpha-amylase is added to cut off starch molecular main chains, and then a part of alcohol hydroxyl groups on the starch molecular chains are oxidizedby substances such as hydrogen peroxide and the like, so that solubility of the glutinous rice glue is enhanced. According to the invention, palm oil and the like are taken as raw materials, vermiculite and diatomaceous earth are added at the same time, moisture of the glutinous rice glue is kept through water absorption, and bonding performance is improved. An amphiphilic moisturizing active agent is prepared by carrying out a reaction on coconut oil acyl chloride with phospholipid, and glacial acetic acid and the like are added for a reaction to form a stable glutinous rice glue system, so that warping possibility of wallpaper is reduced. The glutinous rice based glue is used for improving permeability of the glutinous rice glue, a grease additive is added for preventing dry shrinkage and cracking, and the amphiphilic moisturizing active agent is added to reduce warping of the wallpaper, so that usability of the glutinous rice rubber is improved. According to the invention, the problem that the wallpaper is warped due to the fact that a hardening phenomenon occurs easily after existing glutinous rice glue is used for construction is solved.

The invention discloses a carbon cloth loaded flower-shaped Sb2O4@polyhedral Sb2O5 composite self-supporting electrode material and a preparation method thereof. The preparation method comprises the following specific steps of: 1) putting single-layer graphene oxide into deionized water or a mixed solution of deionized water and absolute ethyl alcohol, and carrying out ultrasonic oscillation to obtain a solution A; 2) adding antimony trichloride into the solution A obtained in the step 1), adjusting the pH value, continuously stirring to form a reaction precursor, and impregnating the carbon cloth subjected to anodic oxidation activation in the reaction precursor; and (3) transferring the carbon cloth obtained in the step (2) and the reaction precursor into a reactor, carrying out hydrothermal reaction at 150-180 DEG C, cooling the product to room temperature after the reaction is finished, taking out the carbon cloth, cleaning and drying the carbon cloth to obtain the carbon cloth loaded flower-shaped Sb2O4 and polyhedral Sb2O5 composite self-supporting electrode material. The preparation method is simple, short in preparation period and high in repeatability, and the prepared product has the advantages of being good in electrochemical performance, low in cost, environmentally friendly, controllable in structural design and the like.

The invention provides a high-simulation antibacterial ceramic tile and a preparation method thereof. The method comprises the following steps: (1) preparation of a blank body: performing ball-millingon a green body mud material and powder material separately to a desired particle size, performing spray drying, performing laying and compression moulding in a mold according to the texture requirements; (2) performing one-time firing treatment at 850-1000 DEG C on the blank body obtained in the step (1); (3) coating ground glaze on the fired blank body obtained in the step (2), wherein components of the ground glaze comprise 8-14% of an organic binder; (4) performing firing treatment on the blank body obtained after coating of the ground glaze; (5) performing inkjet treatment on the blank body obtained in the step (4); (6) coating surface glaze on the blank body obtained in the step (5); (7) performing sintering on the obtained blank body at 1200 DEG C or above; (8) performing picklingon the sintered ceramic tile; and (9) polishing the tile obtained after pickling. The prepared ceramic tile has high fidelity, a high three-dimensional effect and an antibacterial function.

The invention provides a frame type double-row-pile cement-soil wall foundation pit enclosure structure which is arranged in a soil body around a foundation pit. The frame type double-row-pile cement-soil wall foundation pit enclosure structure comprises a group of frame type double-row-pile units and a cement-soil mixed pile waterproof curtain. The cement-soil mixed pile waterproof curtain is arranged along the edge of the foundation pit, and an interval exists between the edge of the foundation pit and the cement-soil mixed pile waterproof curtain. The cement-soil mixed pile waterproof curtain is composed of a group of cement-soil mixed piles, wherein every two adjacent cement-soil piles are meshed. The group of frame type double-row-pile units are arranged at intervals along the edge ofthe foundation pit in parallel. Each frame type double-row-pile unit comprises a front single-arm steel pipe pile, a back single-arm steel pipe pile and horizontal connection plates, wherein the front single-arm steel pipe pile is inserted into the soil body around the foundation pit and located on the side close to the foundation pit, and the back single-arm steel pipe pile is inserted into thecement-soil mixed pile waterproof curtain. The frame type double-row-pile cement-soil wall foundation pit enclosure structure solves the technical problems that construction of a traditional concreteenclosure structure is not environmentally friendly, and materials are wasted and solves the technical problems that a profile steel or steel sheet pile enclosure structure is low in flexural rigidity, and support deformation cannot be effectively controlled.

The invention relates to a plant repairing essence lotion. The plant repairing essence lotion is prepared from the following raw material components in percentage by weight: 60-85% of water, 6-10% ofavocado tree national fat, 1.5-5% of 1, 3-propylene glycol, 1.5-5% of glycerin, 1-5% of olive fruit oil, 1-4% of sunflower seed oil, 1-3% of grape seed oil, 0.6-2% of glycine betaine; 0.6-1% of cetostearyl alcohol, 0.6-1% of raspberry ketone, 0.4-1% of tocopheryl acetate, 0.3-1% of hydrogenated lecithin, 0.28-1% of wild soybean sterol, 0.1-0.46% of xanthan gum, 0.1-0.46% of tremella polysaccharide, 0.01-0.05% of sodium hyaluronate and 0.01-0.03% of dipotassium glycyrrhizinate. The preparation method of the plant repairing essence lotion comprises the following steps: mixing the raw material components in proportion, emulsifying the mixed material, carrying out aging, carrying out detection and carrying out filling. The product has high biological activity and natural raw material components rich in various nutritional ingredients, and can recover the skin elasticity, make the skin color uniform and achieve moistening and anti-wrinkle effects. The preparation method is simple and easy to implement, low in cost and suitable for batch production.

The invention discloses a preparation method for loading a metal oxide on the surface of cracked carbon black. The method comprises the following steps: dissolving organic impurities such as coke oiland residual rubber hydrocarbon attached to the surfaces and internal spaces of carbon black particles by using an organic solvent; conducting repeated vacuum-pressure relief and curing treatment to help the organic solvent to permeate into the cracked carbon black particles so as to allow the organic impurities in the carbon black particles to be fully dissolved out, rich pore structures to be formed on the surfaces of the carbon black particles and in the carbon black particles and active sites of the carbon black particles to be released; carrying out ultrasonic dispersion treatment on thecarbon black particles so as to load metal ions in an aqueous solution into pores in the surfaces of the carbon black particles; and carrying out standing and calcining to uniformly deposit metal oxides in the pores in the surfaces of the carbon black particles, thereby obtaining the modified cracked carbon black hybrid particles and enhancing the application performance of the cracked carbon black.

The invention relates to a preservation method of a fresh silkworm chrysalis. The preservation method particularly comprises the following steps of (1), cleaning the fresh silkworm chrysalis; (2), refrigerating the fresh silkworm chrysalis. Through an experiment, according to the preservation of the fresh silkworm chrysalis by using the method provided by the invention, the preservation time of the fresh silkworm chrysalis can be effectively prolonged; the survival rate of the fresh silkworm chrysalis can be still up to 82 percent or above after five days.

The invention discloses a preparation method of Tibetan tea having delicate fragrance of lotus leaves. The preparation method comprises the following steps of mixing tea leaves with lotus leaves, performing fixation, performing drying, performing fermentation, and finally picking out lotus leaves so as to obtain the Tibetan tea having the delicate fragrance of the lotus leaves. The preparation method disclosed by the invention has the beneficial effects that the lotus leaves are cut up, the cut-up lotus leaves and the tea leaves are subjected to fixation and fermentation, the delicate fragrance of the lotus leaves is merged into the tea leaves, the Tibetan tea having the delicate fragrance of the lotus leaves is formed, and finally the lotus leaves are picked out, so that lotus leaf soup obtained by brewing the lotus leaves during brewing is prevented from influencing the mouth feel of the Tibetan tea.