526results about How to "Simple and fast manufacturing method" patented technology

The invention provides storage mildew-proof and moth-proof packaging hemp cloth and a preparation method thereof. The hemp cloth comprises green harmless storage protective agent and is prepared by taking common packaging hemp cloth as a material and adding 0.01-10wt% of storage protective agent. The preparation method comprises the following steps of: dissolving the storage protective agent in a solvent to prepare a solution, then impregnating the hemp cloth in the protective agent solution, removing the solution after the hemp cloth sufficiently absorbs the solution, and drying; or dissolving the storage protective agent in the solvent, then uniformly spraying the protective agent solution on the hemp cloth and drying the hemp cloth after the hemp cloth sufficiently absorbs the protective agent solution to prepare the storage mildew-proof and moth-proof packaging hemp cloth. The storage hemp cloth is used for packaging tobaccos or crops, can realize the whole process dynamic and real-time protection of the tobaccos, the crops and the like in purchase, transport and storage processes, protect products from mildew and moths, effectively prevent the mildew and the moths from spreading between bags and prevent the tobaccos, the crops and the like which are soaked by rain water from mildewing. Besides, the invention has an important function for reducing environment pollution and hidden safety danger which are caused by common technologies.

The invention discloses a polyvinyl chloride composition and a transparent pipe thereof. The polyvinyl chloride composition consists of the following components in part by weight: 100 parts of PVC resin, 1.0 to 5.0 parts of heat stabilizer, 0.2 to 2 parts of lubricating additive, 1 to 3 parts of processing modification aid, 2 to 5 parts of impact modifier, 0.01 to 0.08 part of decolorizing agent, 0.2 to 0.6 part of age resister and 0 to 10 parts of plasticizer. The polyvinyl chloride composition is subjected to high-speed hot mixing and low-speed cold mixing, and then is extruded to prepare the polyvinyl chloride transparent pipe; and the pipe is homogenous and transparent, has smooth inner wall, is not easy to scale, can be sleeved outside a pipeline for delivering important or dangerous chemicals, has monitoring and protecting functions, has good ageing resistance, and can be used for outdoor occasions. The preparation method for the polyvinyl chloride transparent pipe is simple, convenient and quick, does not require special tools and professional staff, and is favorable for large-scale industrial production.

The invention relates to a nanofiber membrane and particularly relates to a novel composite nanofiber membrane as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) dissolving any one of polyvinyl alcohol, polylactic acid and regenerated silk fibroin in an organic solvent to prepare a spinning solution with the mass fraction of 5-20 percent; (2) adding polyphenol substances to the spinning solution, and uniformly stirring to obtain a mixed spinning solution which accounts for 1-7 percent of the total mass of the polyphenol substances and the organic solvent, wherein the polyphenol substances are one or more of vegetable tannin, apple polyphenol and grape polyphenol; (3) carrying out ultrasonic treatment on the mixed spinning solution for 1-600 minutes; and (4) carrying out electrostatic spinning on the mixed spinning solution and collecting to obtain the required composite nanofiber membrane. After subjected to electrostatic spinning, the composite nanofiber membrane is smooth in surface, continuous and uniform, has the diameter of between 100nm and 800nm and can be applied to the fields of medical dressing, makeup facial masks, tea bags, controlled release of targeted drugs, food preservation and sewage purification.

The invention relates to a fructus cannabis beverage, which is mainly made from fructus cannabis and condensed milk, to which an appropriate amount of white sugar, emulsifier and stabilizer are added. A method for preparing the fructus cannabis beverage adopts a disc-type vegetable stuffing machine to grind the fructus cannabis, which can prevent fructus cannabis shells from being ground excessively and becoming nigrescent in color, so as to ensure that fructus cannabis slurry is pure white and closer to the primary color of milk slurry. The fructus cannabis beverage is simple in formula, convenient in making process, low in production cost and suitable for industrial production.

The invention discloses a preparation method for vaterite-phase calcium carbonate microspheres with a uniform size, comprising the following step of: using a double-hydrophilic hyperbranched polymer molecule as a template, and performing precipitation reaction between water-soluble calcium salt and carbonate to prepare. The calcium carbonate microspheres prepared by the method are organic-inorganic hybrid materials containing 7-10 wt% of hyperbranched polymer. The particle size of the microspheres can be adjusted in a range between 2 to 4.5 microns by controlling reaction conditions. The product prepared by the method disclosed by the invention is highly uniform in size, green and environment-friendly in synthesis process, and with a certain application prospect.

The invention provides a composite flexible surface enhanced Raman substrate based on silver nanoparticles and a preparation method of the substrate. According to the method, first, a chemical reduction method is utilized to prepare a silver colloid containing a large quantity of silver nanoparticles (AgNPs); second, the silver colloid is mixed with polydimethylsiloxane (PDMS) diluted with methylbenzene to form a suspension, the suspension is dropwise added onto the surface of a hard baseboard, and a PDMS thin film containing a large quantity of silver nanoparticles is formed through heat curing and is peeled off; and last, an impregnation method is used to transfer a layer of silver nanoparticles on the prepared thin film, and the composite flexible surface enhanced Raman substrate basedon silver nanoparticles is prepared. An experiment indicates that by use of the surface enhanced Raman scattering substrate prepared through the method, high-sensitivity SERS detection can be realized, and Raman signals are uniform; and meanwhile, the substrate has good mechanical stability and flexibility, and SERS signals are not attenuated but even substantially enhanced under large-range tensile strain. The method is convenient and fast to use and low in cost, and large-area repetitive preparation can be realized.

The invention belongs to the technical field of compositions of asphalt materials, and particularly relates to an epoxy modified emulsified asphalt sand-fog-containing sealing layer material. The sand-fog-containing sealing layer material comprises the following main components: emulsified asphalt, epoxy resin and a water-soluble curing agent. The material is good in compatibility, a prepared sand-fog-containing sealing layer is uniform, and does not have accumulated oil or oil spots; the strength of the material is high; the anti-penetrability performance is good; the skid resistance is good;and the wear resistance is also good. The sand-fog-containing sealing layer prepared from the material has good inlaying effect on the original pavement. The preparation method is simple and speedy,convenient to operate and suitable for industrialized large-scale production.

The invention discloses an intelligent hydrogel as well as a preparation method and an application thereof and a hydrogel. The intelligent hydrogel is P(NIPAM-co-CS) / Fe3O4 and comprises iron oxide, N-isopropyl acrylamide and chitosan. The preparation method comprises the following steps: dissolving FeCl2.4H2O and FeCl3.6H2O in a mixed solvent of ethanol and water and reacting to prepare hydrophilic Fe3O4 nanoparticles under the protection of nitrogen and by adopting ammonia water as a precipitating agent; ultrasonically dispersing the prepared Fe3O4 nanoparticles in a chitosan liquid, adding a temperature-sensitive monomer N-isopropyl acrylamide and in the presence of a crosslinking agent and an initiator and by adopting tetramethylethylenediamine as an accelerator, carrying out polymerization reaction to prepare the intelligent hydrogel P(NIPAM-co-CS) / Fe3O4 by virtue of a micro-emulsion polymerization method. The intelligent hydrogel can be applied in the preparation of a water body heavy metal ion adsorption-desorption agent for removing heavy metal ions in water body.

The invention discloses a preparing method of micro-capsule through doping porous calcium carbonate mode, which comprises the following steps: reacting inorganic salt with calcium and inorganic salt with carbonate to prepare porous calcium carbonate colloid particle doped by negative charge electrolyte, adsorbing polyelectrolyte with positive charge on the colloid particle surface, decomposing diluted acid or complexing ethylenediamine tetra acetic acid to remove calcium carbonate particle, forming hollow micro-capsule through ionic bond action of positive and negative charge polyelectrolyte.

The invention relates to a preparation method for an expansion type melamine hypophosphite fire retardant. The preparation method comprises the following steps: adopting a water phase synthesis method, adding melamine and hypophosphorous acid with the molar ratio of 1:0.5 to 3 into water, stirring the mixture for reaction for 2 hours at 0 to 100 DEG C at a stirring speed of 300r / min, then carrying out the suction filtration and washing of the reaction product, and drying the reaction product for 3 hours at 150 DEG C to obtain the melamine hypophosphite fire retardant. The preparation method has simplicity, quickness, high efficiency, no halogen, environmental friendliness, low cost and high economic benefits. In addition, the prepared fire retardant has high phosphorus content, is a solid at room temperature, and has high thermal stability and high compatibility with high polymers. The fire retardant not only can be used for a polyolefin halogen-free fire retardation system, but also can be used for the halogen-free fire retardation of engineering plastics such as polyester, polyamide, and the like.

The invention relates to an inorganic foam material for joint sealing of a wall thermal insulation system and a preparation method of the inorganic foam material, and belongs to the technical fields of an inorganic foam material and a preparation method thereof. The inorganic foam material for joint sealing of the wall thermal insulation system consists of the following components in parts by weight: 1 part of foam and 1-20 parts of polymer modified cement slurry, wherein the foam includes 1 part of a foaming agent and 10-100 parts of water; and the slurry includes 500-900 parts of cement, 100-500 parts of a filling material, 10-100 parts of high-molecular polymer, 1-30 parts of a fiber material, 1-30 parts of a water holding thickening agent, 10-100 parts of a water reducing agent, 1-10 parts of a water repellent and 400-1000 parts of water. The preparation method comprises the following steps of: 1) preparing the foam; 2) preparing polymer modified cement slurry; and 3) completely and uniformly mixing the foam and the slurry, and sealing the joint on the wall. The inorganic foam material, which contains a great amount of sealed bubbles, is low in conductivity coefficient; and the inorganic foam material is an inorganic incombustible material, which acts as a fire barrier after sealing the joint on the wall, so that the integral fireproof performance of the wall thermal insulation system is improved, and the application prospect is wide.

The invention provides a carbon aerogel and a preparation method thereof, and a pressure sensor, and belongs to the field of researches on nanometer materials. According to the invention, the carbon aerogel formed from amorphous carbon and graphene through a mud brick structure and having omnidirectional compressible super-elasticity, and the preparation method thereof are provided; and the preparation method comprises: dispersing a saccharide-based additive and graphene oxide into a solvent to form a graphene oxide and additive mixed dispersing solution, drying the mixed solution to obtain anadditive-containing graphene oxide aerogel, and carrying out high-temperature heat treatment on the additive-containing graphene oxide aerogel under the protection of an inert gas to obtain the carbon aerogel, wherein the obtained carbon aerogel has the omnidirectional compressible super-elasticity. The present invention further relates to a tactile and pressure sensor based on the aerogel.

A proces for directly preparing the Al-Ce interalloy by fused salt electrolyzing method features that the pure cerium oxide is directly added to the electrolyzer and the chemical reaction in fused salt electrolyzing procedure makes the Ce directly come in Al liquid to obtain the RE alloy containing Ce (10%).

The invention discloses a novel skin / core-layer composite fiber as well as a preparation method and application thereof. The novel skin / core-layer composite fiber comprises a carbon nanotube fiber and an electroconductive polymer coated on the carbon nanotube fiber. The preparation method comprises the following steps: firstly, preparing the carbon nanotube fiber by using an array spinning method, a floating catalytic spinning method, a solvent spinning method or the like, then acidizing the carbon nanotube fiber, and depositing the electroconductive polymer on the surface of the acidized carbon nanotube fiber to obtain the bicompoent composite fiber with electroconductive polymer as a skin layer and carbon nanotube fiber as a core layer. The composite fiber has the characteristics of good linear capacitance characteristic, light weight, high strength and the like, is simple, convenient and rapid in preparation method, and is formed through two steps, and the whole preparation process is performed at normal temperature and normal pressure and is low in energy consumption, high in efficiency and convenient to operate.

The invention discloses a method for a semi-interpenetrating network-structure similar-single ion solid-state polymer electrolyte by an in-situ polymerization method. The method comprises the steps ofdissolving a high polymer in an appropriate solvent to prepare a uniform mixed solution, adding a monomer, an initiator, a crosslinking agent and 2-acrylamide-2-methyl propane sulfonic acid lithium salt into a high polymer solution, removing air in the solution with ultrasound after uniform stirring, triggering polymerization in a vacuum drying box at 50-70 DEG C, rising a temperature to 80 DEG C, and obtaining a polymer electrolyte membrane after the solvent is volatilized. The prepared polymer electrolyte membrane is a semi-interpenetrating network-structure crosslinking polymer membrane, and the polymer membrane is high in mechanical strength; negative ions are fixed on a polymer chain segment, lithium ions are easier to migrate, and the ion conductivity of the polymer electrolyte canbe improved; and meanwhile, the method is simple in preparation process, complicated process flow is not needed, and the prepared polymer electrolyte membrane has excellent machining performance.

The invention discloses a preparation method of micro-fluidic dual-aqueous-phase monodisperse calcium alginate microspheres. The preparation method comprises the following steps: taking a polyethyleneglycol water solution as an outer aqueous phase, and glucan and a sodium alginate water solution as an inner aqueous phase; generating dual-aqueous-phase sodium alginate liquid drops at a conical sharp point through a coaxial capillary tube device; wherein the outer aqueous phase is continuous sample feeding; the inner aqueous phase is periodicity and intermittence sample feeding; introducing thedual-aqueous-phase sodium alginate liquid drops into a calcium chloride water solution to generate the needed monodisperse calcium alginate microspheres. According to the preparation method disclosedby the invention, sodium alginate or dual aqueous phases do not need to be subjected to a complicated pre-treatment process and a production manner is simple and rapid and has good biocompatibility;the formed microspheres are stable and the size of the microspheres is controllable; a device has the advantages of simple structure, flexibility and convenience for production, accuracy in operationand control and easiness for batch production.

The invention provides a flexible stretchable biosensor. The flexible stretchable biosensor has the advantages that the structure is simple, multiple working electrodes and multiple signal transmission channels are designed on a flexible film substrate, and it can be ensured that after one electrode goes wrong, other electrodes can work normally, thereby improving the safety of the biosensor, improving the accuracy of signal measurement and reducing the measurement error. The invention further provides a preparation method of the flexible stretchable biosensor, which has the advantages that the tensile property of the biosensor can be enhanced, and the conformability between the flexible stretchable biosensor and a measured object can be improved.

The invention discloses a high-temperature wear resistant nonstick coating layer material and a preparation method thereof. The high-temperature wear resistant nonstick coating layer material comprises 80-99wt% of Teflon and 1-20wt% of metal oxide. A nonstick coating layer is produced from the high-temperature wear resistant nonstick coating layer material through a present nonstick coating layer coating technology, and a result of the wear resistance test of the nonstick coating layer shows that the bearable friction frequency can reach 90000 (test standard: CMA2005 Kitchenware Association Standard, and the qualified friction frequency is 30000).

The invention discloses a method for preparing polyamidoxime / graphene nanobelt composite aerogel and separating and enriching uranium, which is characterized by comprising the following steps of: firstly, axially cutting a multiwalled carbon nanotube by using a potassium permanganate oxidation method to prepare a graphene oxide nanobelt; then adding into a mixed solution of acrylonitrile and ammonium persulfate which are fully mixed, and primarily preparing polyacrylonitrile / graphene nanobelt composite hydrogel by adopting a solvothermal polymerization method; and then converting cyano groupsinto amidoxime groups by virtue of a reaction between the cyano groups and hydroxylamine under an alkaline condition so as to obtain polyamidoxime / graphene nanoribbon composite hydrogel, and finally,carrying out low-temperature freeze drying so as to obtain the polyamidoxime / graphene nanoribbon composite aerogel. The prepared polyamidoxime / graphene nanobelt composite aerogel is high in grafting rate, uniform in density distribution, stable in structural performance and rich in special functional groups of uranium, the uranium can be effectively and selectively removed from different uranium-containing water bodies, the adsorbed aerogel can be rapidly separated and recycled from a solid-liquid system, and no pollution is caused to the environment.

The invention provides a preparation method of three-dimensional porous nitrogen-doped graphene. The three-dimensional porous nitrogen-doped graphene is obtained by simultaneously using amino acid small molecules are a carbon source and a nitrogen source and sequentially performing roasting, grinding, pickling, washing with deionized water, washing with absolute ethyl alcohol and drying through a transition metal catalyst, the nitrogen source and a pore-forming activating agent are not needed to be added during the preparation process, the in-site porous nitrogen-doped graphene can be formed by an one-step method, and the three-dimensional porous nitrogen-doped graphene in different morphologies can be obtained according to different types of the transition metal catalyst. The method is simple and convenient, is low in cost and can be widely applied to the fields of a fuel cell, a lithium ion battery, a supercapacitor and the like, and mass production is facilitated.

The invention provides a preparation method for a surface-enhanced Raman substrate and a surface-enhanced Raman substrate structure, belonging to the field of preparation of micro-nano structures. The preparation method comprises the following steps: selecting a silicon substrate and etching the silicon substrate to produce a silicon pyramid array; putting the silicon pyramid array into a microwave plasma chemical vapor deposition system for growth of a graphene nanoflake; and coating the surface of the graphene nanoflake with a layer of metal particles so as to obtain the surface-enhanced Raman substrate. The surface-enhanced Raman substrate structure is prepared by using the preparation method. The preparation method in the invention can prepare the uniform surface-enhanced Raman substrate with a large area and ensure the metal particles to be pure and free of contaminations. Meanwhile, the preparation method is simple and convenient, and is low in cost. The surface-enhanced Raman substrate prepared in the invention has strong Raman enhancement characteristics and high sensitivity.

The invention discloses a preparation method for three-dimensional self-assembly graphene which is strong in absorbing oil organic solvents. According to the preparation method, the graphite is taken as raw material, oxidized graphene taken as an initiator is dialyzed in deionized water so as to obtain an oxidized graphene water solution, under acidic condition, hydrothermal process is carried out on the oxidized graphene water solution so as to obtain a three-dimensional self-assembly graphene hydrogel, and finally, the hydrogel is washed with the deionized water and then dried through freezing so as to obtain the high adsorptivity three-dimensional self-assembly graphene.

The invention discloses a lithium-based nano concrete hardener and a construction method thereof. The lithium-based nano concrete hardener is prepared from the following components in percentage by weight: 5 to 40 percent of lithium silicate, 10 to 50 percent of silica sol, 1 to 5 percent of promoting agents, 1 to 5 percent of penetrating agents and the balance of water. During use, a concrete base surface is cleaned and subjected to coarse grinding, and then is sprayed with the lithium-based nano concrete hardener; after concrete is completely hardened, the base surface can be cleaned and polished. The lithium-based nano concrete hardener has the characteristics of being capable of relieving the ASR degradation effect and preventing cracking of a concrete structure, being high in durability, environment-friendly and being suitable for industrial production, and the characteristics that the preparation method is simple and convenient, and the product cost is low.

The invention discloses a super-hydrophobic / super-oleophylic stainless steel mesh for oil-water separation and a preparation method thereof. The preparation method comprises the following steps: ultrasonically cleaning a stainless steel mesh with deionized water, then performing drying, soaking the clean stainless steel mesh in a dilute strong acid solution for corrosion, taking out the corroded stainless steel mesh, ultrasonically cleaning the corroded stainless steel mesh, and drying the cleaned stainless steel mesh; soaking the stainless steel mesh after corrosion in a salt solution of an inactive metal, performing reacting, taking out the reacted stainless steel mesh, ultrasonically cleaning the reacted stainless steel mesh, and performing drying; finally, soaking the dried stainless steel mesh in a long-chain alkyl organic acid solution for reaction and then taking out the reacted stainless steel mesh, performing ultrasonic cleaning and drying, so as to finally obtain the super-hydrophobic / super-oleophylic stainless steel mesh. The oil-water separation filter mesh prepared by the method has the advantages of being high in oleophylic speed, good in hydrophobic effect, not easyto fall off and reusable for many times, the separation of oil-containing wastewater can be realized quickly and efficiently, and the stainless steel mesh has good separation effect on kerosene, gasoline, liquid paraffin, toluene and the like and also has good separation effect on strong-acidity, strong-alkaline and high-salinity oil-containing wastewater, and has a wide application prospect in the fields of petrochemical environment protection and the like.

The invention discloses a high-dispersity cobalt-based Fischer-Tropsch synthesis catalyst as well as a preparation method and an application thereof. The catalyst comprises an oxide carrier, wherein an active component cobalt and a noble metal addition agent are loaded on the surface of the oxide carrier; the active component cobalt accounts for 3%-40% of the total weight of the catalyst, the noble metal addition agent accounts for 0.01%-1% of the total weight of the catalyst and the oxide carrier accounts for 59%-96.99% of the total weight of the catalyst; and the specific surface area of the catalyst is 20m<2> / g-300m<2> / g. According to the high-dispersity cobalt-based Fischer-Tropsch synthesis catalyst, a high-pH-value complexing metal salt carrier is selected to provide a metal element loading environment; hydrazine hydrate and a heavy metal salt are respectively used as a reducing agent and an induction agent of a reduction reaction; the active component cobalt is obtained by reduction at low temperature, and a water-phase reaction environment and ultrasonic vibration are additionally adopted so that the dispersity and the reduction degree of active grains are improved; the reduction of the mechanical intensity of the carrier and the loss of the active component are effectively avoided; the service life is prolonged; and the catalyst can be directly used for a Fischer-Tropsch synthesis reaction without high-temperature roasting and activation reduction.

The invention relates to a bacteriostatic isolation coating film-forming liquid for a medical inspection platform and a preparation method thereof. The film-forming liquid containing solid micro-particles comprises a silica sol component loaded with nano silver-titanium dioxide, a nano silver-doped organic-modified mesoporous silica antibacterial composite microsphere component, a composite organic resin component, polyhexamethylene biguanide hydrochloride or phosphate, and an other auxiliary agent component. The bacteriostatic isolation coating film-forming liquid can be used for the surfacefilm-forming isolation use of the hospital inspection platform such as various working or operating tables, appliance storage-taking brackets or working cabinets, and has excellent disinfection bacteriostatic function and hydrophobic and easy-cleaning function.

The invention relates to a low-phosphorus efficient scale and corrosion inhibitor for circulating water treatment, and a preparation method thereof, and belongs to the technical field of circulating cooling water treatment. The low-phosphorus efficient scale and corrosion inhibitor for circulating water treatment is prepared by compounding a scale and a corrosion inhibitor A and a scale and a corrosion inhibitor B according to the weight ratio of 1:1 to 1:5, wherein the scale and corrosion inhibitor A is prepared by mixing polyepoxysuccinic acid, sodium gluconate, an imidazoline type corrosioninhibitor and water; and the scale and corrosion inhibitor B is prepared by mixing hydrolytic polymaleic anhydride, an acrylic acid / 2-acrylamide-2-methallyl sulfonate copolymer, 2-phosphonic acid butane-1,2,4-tricarboxylic acid, zinc salt and water. The low-phosphorus efficient scale and corrosion inhibitor for circulating water treatment has low phosphorus content and high calcium and alkali tolerance, can resist corrosion of high-concentration Cl<-> and SO4<2->, and has good corrosion and scale inhibition effects; meanwhile, the invention provides a simple, convenient and rapid preparationmethod.

The invention discloses a manufacturing method of soft-polished glazed tiles. The manufacturing method comprises the following steps: (1) preparing adobe; (2) applying ground glaze; (3) applying glossy glaze; (4) performing low-gloss ink spray printing through an inkjet printer; (5) firing glaze at the high temperature to obtain the soft-polished glazed tiles. The manufacturing method is simple and convenient, requires low labor intensity and has low technical requirement; low-gloss ink and the glossy glaze are fused, and accordingly, the soft-polished glazed tiles with a low gloss effect can be manufactured.

The invention provides a method for preparing a humidity-sensitive switch flexible sensing material. The method for preparing the humidity-sensitive switch flexible sensing material is characterized by specifically comprising the following steps: preparing at least one polymer solution, pouring the polymer solution into at least one composite tank, performing water bath heating on the composite tank, unwinding a carbon nano tube fiber or carbon nano tube membrane from a winding roller, leading through a leading needle, and feeding into the composite tank for combination; after the combination, performing grouting treatment through the guide needle, guiding, feeding into a heating area for drying so as to cure the polymer on the surface and inside the carbon nano tube fiber or carbon nano tube membrane, thereby obtaining the humidity-sensitive switch flexible sensing material. The humidity-sensitive switch flexible sensing material can be wound on a wire shaft connected with a motor. The humidity-sensitive switch flexible sensing material has the advantages of being low in cost, good in flexibility, good in conductivity, fiber-like, capable of being embedded into a monitored environment to be in contact with the monitored environment in all directions, and the like.