56results about How to "The manufacturing method steps are simple" patented technology

The invention discloses a preparation method of a hydrocracking catalyst. The method comprises: first selecting a solution containing a hydrogenation active metal and an organic reagent to dip mixed powder of a molecular sieve and alumina, conducting drying, then subjecting the obtained material and a peptizing agent or a binder together to rolling, molding, drying and roasting, thus obtaining the catalyst. Only through one time high temperature roasting can the catalyst product be obtained. The preparation method is simple, and the preparation cost is obviously reduced. In addition, the hydrogenation activity center and the cracking activity center of the catalyst coordinate, so that the catalyst has very high catalytic activity. Also with a large specific surface area and pore volume, the hydrocracking catalyst is more suitable for a catalytic process of treating high dry point inferior vacuum distillate oil by hydrocracking for high production of naphtha.

The invention discloses photocuring flexible resin for 3D (three dimensional) printing and a preparation method thereof. The photocuring flexible resin for the 3D printing is characterized by being prepared from the following raw material components in parts by weight: 20 to 80 parts of a monomer raw material, 30 to 70 parts of a resin raw material, 0.3 to 3 parts of an initiator, 0.02 to 0.08 part of a defoaming agent, 0.03 to 1 part of a leveling agent and 0.05 to 5 parts of a pigment. The photocuring flexible resin is obtained by mixing of the raw material components, low-speed stirring, high-speed stirring and screening. A resin product has high elongation at break and is proper in strength and hardness; the hardness is 45 to 55 A, and the elongation at break is 100 to 160 percent; the resin product has the advantages of bending resistance, high forming rate and high precision and can meet the requirements for production and manufacturing of products such as shoe materials, seal models, spacers and gaskets; meanwhile, the preparation method has simple and efficient steps and is extremely high in promotion space and market value.

The invention relates to a (001) surface exposure Fe (ferrum) doping TiO2 (titanium dioxide) multi-stage catalyst and a preparation method of the Fe doping TiO2 multi-stage catalyst and belongs to the technical field of multi-stage structure nanometer material catalysis. The catalyst consists of the following ingredients in percentage by mass: 35.5 percent to 45.5 percent of titanium, 55.5 percent to 65.5 percent of oxygen and 0.1 percent to 1 percent of Fe. A one-step in-situ solvent terminal method is adopted in the catalyst synthesis process, amorphous Fe doping TiO2 nanometer sheet layer multi-stage microspheres are adopted as precursors, a Fe-doping anatase type TiO2 multi-stage microsphere catalyst with the exposed (001) surface is obtained through the roasting, and the catalyst is applicable to visible light degradation organic matter catalysis reaction. The catalyst and the preparation method have the advantages that the catalyst has higher visible light degradation organic matter catalysis activity, the catalyst is maintained at the higher specific surface area of the nanometer materials, and the advantages of easy separation and high recovery and reutilization rate of the micrometer dimension materials are realized.

The invention belongs to the field of production for non-stick tableware, and specifically relates to a ceramic coating and an application thereof in non-stick tableware, and non-stick tableware and a preparation method thereof. The ceramic coating disclosed by the invention is mainly composed of the following ingredients in parts by weight: 4-6 parts of methyltrimethoxysilane, 35-40 parts of silica sol, 17-22 parts of isopropanol, 13-18 parts of distilled water and 18-22 parts of toner. The non-stick tableware disclosed by the invention is formed by spraying the ceramic coating disclosed by the invention on the surface of a glass base material. The ceramic coating and the non-stick tableware disclosed by the invention have the following beneficial effects that: the provided ceramic coating is suitable for the surface of the glass base material and achieving a high-temperature anti-stick effect; the provided non-stick tableware has a high-temperature anti-stick performance, a ceramic coating layer on the surface of the non-stick tableware is stable in property and not liable to fall off, and the non-stick tableware is capable of obtaining different appearance colour expressions in case of being observed from different perspectives, thus enriching the spiritual culture aesthetic demands of people.

The invention belongs to the technical field of lithium supplementing materials of lithium ion batteries, and particularly relates to a preparation method of lithium ferrite. By adopting a solvent method, an iron source, a lithium source and organic acid are mixed in a water-containing solvent to obtain ferric hydroxide colloid with smaller particle size. Meanwhile, the organic acid reacts with alithium source to generate a lithium salt, and the lithium salt and the ferric hydroxide colloid can be attached to the surface of the ferric hydroxide colloid after being heated to form a precursor solution with higher activity. And after the obtained precursor solution is dried, lithium ferrite with relatively high purity can be obtained only by once sintering, so the problems of repeated sintering, insufficient sintering reaction, long sintering time and high impurity content of a conventional solid-phase method are solved.

The invention discloses a fully-synthetic glass cutting fluid. The fully-synthetic glass cutting fluid comprises the following components in percentage by weight: 0.1-5% of triethanolamine, 0.1-5% oftriethanolamine borate, 1-20% of hyperbranched quaternary ammonium salt, 1-10% of a penetrating agent, and 0.01-3% of a defoaming agent, with the balance being deionized water. The fully-synthetic glass cutting fluid is endowed with certain lubricating property by triethanolamine borate, and due to good lubricating property and low addition amount of triethanolamine borate, the glass cutting fluidis favorable for environmental protection; and due to high lubricating property, cutting precision is improved, surface precision is good, the lubricating property is improved, the service life of adiamond wire can be prolonged, and cost is saved.

The invention provides an anti-tear and anti-puncture greenhouse film. The greenhouse film is prepared from, by weight, 18 parts of LLDPE, 20-30 parts of LDPE, 65 parts of BOPET, 10-20 parts of PE antioxidant, 0.8 part of ultraviolet light absorber UV-531, 0.2 part of titanium oxide or carbon black, 3 parts of dripping agent, 4 parts of surfactant, 5 parts of flexibilizer, 30-40 parts of metallocene polyethylene and 1 part of polyphthalamide. By means of composition formula optimization, the anti-tear and anti-puncture greenhouse film which is good in anti-tear, anti-puncture and anti-atomization effects, excellent in physical and mechanical properties and long in service life is obtained by means of copolymerization of a base material BOPET taken as the principal material and cooperation with LLDPE, LDPE and metallocene polyethylene. A preparation method of the anti-tear and anti-puncture greenhouse film comprises the steps of material feeding, uniform stirring, drying, extrusion-blown molding conducted through an extruder, longitudinal stretching, transverse stretching and finished product coiling. The preparation method of the anti-tear and anti-puncture greenhouse film is simple and reasonable in step, and the prepared finished product is resistant to tear, puncture and atomization and long in service life.

The invention discloses a preparation method of a rare earth cerium doped thermistor material. According to the process, rare earth cerium is provided by reaction of cerium nitrate and sodium oxalate,and B value and resistivity of the original thermistor material are changed to a larger extent. The conduction principle of traditional NTC (negative temperature coefficient) thermosensitive ceramicsis the jumping conductance caused by jumping of electrons between different valence-variable ions of the same metal in the position B of a spinel structure, while Mn and Co both have various valenceions, cation distribution of Mn and Co is relatively complex, and various ions such as Mn<4+>, Mn<3+>, Co<3+> and CO<2+> may be present in the position B. Detection shows that after doping of rare earth cerium, the grain size becomes small and the grain boundary increases. In the NTC thermosensitive ceramic material, the grain is a semiconductor, and the grain boundary is a high resistance layer and is the main unit for withstanding voltage. Besides, the thermistor material obtained after doping of rare earth cerium has high stability and good aging resistance, and has greater application prospects in precision instruments such as dialyzers, DNA sequencers, blood analyzers and the like.

The invention discloses a SLA elastic photosensitive resin for 3D printing. The SLA elastic photosensitive resin for 3D printing is prepared from the following raw materials in parts by weight: 30-80parts of a monomer raw material, 10-70 parts of a resin raw material, 5-30 parts of toughening rubber, 2-20 parts of toughening microspheres, 0.5-5 parts of an initiator, 0.01-0.1 part of a defoamer,0.03-1 part of a flatting agent and 0.02-5 part of a pigment. The SLA elastic photosensitive resin is prepared by mixing the raw material components and stirring, defoaming and screening the mixture.The resin product is excellent in resilience and flexure resistance and has a silica gel-like texture. The elongation at break is 200-250%, the hardness is 35-45A, the resin is free of shrinkage distortion, high in printing success rate and high in surface precision, can be used for rollover manufacturing by replacing silica gel and can meet the production and manufacturing demands of products such as shoe materials and spacers and washers.

The invention discloses a SLA flexible photosensitive resin for 3D printing. The SLA flexible photosensitive resin for 3D printing is prepared from the following raw materials in parts by weight: 30-70 parts of a monomer raw material, 30-60 parts of a resin raw material, 10-30 parts of a flexibilizer, 1-3 parts of an initiator, 0.01-1 part of a defoamer and 0.02-5 part of a pigment. A preparationmethod of the SLA flexible photosensitive resin comprises the following steps: dissolving the imitator in the monomer raw material, adding the pigment and stirring the mixture to obtain a mixed liquid; adding the flexibilizer into the mixed liquid to obtain a premixed liquid; and adding the resin raw material and the defoamer into the premixed liquid to be stirred and mixed fully and screening themixture to obtain the SLA flexible photosensitive resin for 3D printing. The SLA flexible photosensitive resin for 3D printing has excellent tear resistance and high elongation at break. The hardnessis 45-90A, the elongation at break is 180-250%, and the SLA flexible photosensitive resin is high in forming precision and wide in performance adjustable range, and can be used for developing and manufacturing products such as spacers and washers, creative garage kits and shoe soles.

The invention relates to a preparation method for a TAF intermediate. The preparation method comprises the following steps: adding an organic solvent A into a reaction vessel, adding PMPA, triphenyl phosphite, DMAP and triethylamine under stirring, carrying out heating to 60 to 140 DEG C, carrying out a reaction for 10 to 16 hours, carrying out cooling to 0 to 50 DEG C, carrying out standing and layering, then collecting a lower-layer oil-like substance, adding an alkali liquor, carrying out extraction with ethyl acetate, collecting a lower-layer water phase, dropwise adding concentrated hydrochloric acid, and carrying out crystallization under stirring for 2 to 30 hours; and carrying out vacuum filtering and drying so as to obtain the TAF intermediate. The preparation method provided by the invention greatly reduces reaction time, saves time cost for industrial production, improves efficiency, and further reduces energy consumption.

The invention relates to sorbitol derivatives and a preparing method and application of a DBS polyolefin nucleating agent synthesized with the sorbitol derivatives.The sorbitol derivatives include 1-(2-butenyl) sorbitol, 1-butyl sorbitol, 1-(2-methyl allyl)sorbitol, 1-isobutyl sorbitol, 1-vinyl sorbitol, 1-ethyl sorbitol and the like.The nucleating agent prepared from the series of novel sorbitol derivatives is odorless, and thus the odor issue of an existing nucleating agent is effectively relieved.The nucleating agent effectively increases the crystallization speed of polyolefin resin and improves the degree of crystallinity of polyolefin resin, the transparence and the surface gloss of polyolefin are improved, and the physical and chemical properties such as the bending modulus, the tensile yield strength, the heat deflection temperature and the impact strength of polyolefin are improved; in addition, the preparing method is simple in step, and industrialized production is easy to achieve.

The invention discloses a polymer cement concrete additive. The formula of the polymer cement concrete additive comprises, by mass, 5-15 parts of silica fume, 4-10 parts of inorganic nano-particles, 12-18 parts of hydroxyethyl cellulose, 8-12 parts of FRP fibers, 3-8 parts of PP (polypropylene) fibers, 6-14 parts of a polycarboxylate superplasticizer, 1-5 parts of a composite preservative and 0.5-1.5 parts of a workability regulator. The invention also discloses a preparation method of the polymer cement concrete additive. The additive improves the durability, the strength, the toughness and the corrosion resistance of cement concrete, can effectively improve the workability of the cement concrete to make the fresh cement concrete have good flowability, can effectively reduce the pore surface tension of the cement concrete and reduce the number of harmful macropores in the cement concrete to make the concrete have high compactness, and also has the advantages of improvement of the durability of the concrete, simple and reasonable preparation method steps, and easiness in industrial production.

The invention relates to the technical field of adhesives, in particular to a fruity pressure-sensitive adhesive composition and a preparation method thereof. The fruity pressure-sensitive adhesive composition is prepared from, by weight, 8-15 parts of a styrene-isoprene-tyrene block copolymer, 3-10 parts of a styrene-butadiene-tyrene block copolymer, 18-26 parts of aliphatic hydrocarbon synthetic resin, 14-22 parts of olive oil, 0.1-1 part of an anti-aging agent CPPD, 0.2-1 part of an an anti-aging agent AW, 5-10 parts of nano-calcium carbonate, 0.2-2 parts of a titanate coupling agent and 0.5-4 parts of a plant extract. The fruity pressure-sensitive adhesive composition is safe and environmentally friendly in use, free of toxicity and irritation and wide in application prospect, and the preparation method is simple, easy to operate and low in labor intensity.

The invention relates to a novel guaiacol bromine composition and a preparation method thereof. According to the invention, edetic acid (edetate) is found to be able to well control growth of a bromhexine hydrochloride impurity E and impurity B, so the stability of bromhexine hydrochloride is remarkably improved. Compared with a conventional product with a similar kind, the novel guaiacol brominecomposition prepared by using the preparation method provided by the invention has the advantage that the high-temperature, accelerated and long-term stability results are obviously improved. The preparation method provided by the invention can be used for industrial large-scale production and has good prospect.

The invention provides a traditional Chinese medicine preparation with effects of eliminating swelling and reliving pain and activating blood and removing stasis. The traditional Chinese medicine preparation comprises the following traditional Chinese medicine preparation formulae: 12g of notopterygium roots, 12g of radix angelicae tuhuo, 10g of carthamus tinctorius, 15g of akebiaquinata, 10g of lycopodium clavatum, 15g of rhizoma corydalis, 10g of radix angelicae, 6g of asarum, 10g of rhizoma sparganii and 10g of curcuma zedoary. A making method comprises the following steps: preparing materials; cleaning, and crushing; making medicine bags; soaking with cold water; carrying out primary decoction; carrying out secondary decoction; mixing decoctions; smashing medicine dregs; mixing, and boiling; molding the traditional Chinese medicine preparation. The traditional Chinese medicine preparation with effects of eliminating swelling and reliving pain and activating blood and removing stasis, which is provided by the invention, has the effects of eliminating swelling and reliving pain and activating blood and removing stasis for swelling pain and hydrarthrosis caused by orthopedic diseases such as acute gouty arthritis, acute sprain, scapulohumeral periarthritis degenerative arthritis, tenosynovitis and synovitis.

The invention discloses a preparation method of high-purity humulus lupulus total flavones, wherein the preparation method includes following steps: (A) performing ethanol reflux to a raw material, humulus lupulus, to obtain an extract; (2) treating the extract through a polyamide column and passing the extract through a macroporous resin column, and performing elution to obtain a solution; (3) decoloring the solution through activated charcoal and spray-drying the solution to finally obtain the humulus lupulus total flavones being high in content and good in appearances. The preparation method is simple in steps, is less in usage of organic solvents during the process, is low in cost and is safe in operation and free of environment pollution. The final product is good in appearances and is high in yield and content. The preparation method is suitable for industrial production, fully utilizes two different ways of the humulus lupulus for brewing beer and making drugs, and provides new approaches of maximum utilization of the humulus lupulus.

The invention discloses a porous thin-wall titanium dioxide / strontium sulfate heterojunction hollow nanocube. According to the porous thin-wall titanium dioxide / strontium sulfate heterojunction hollownanocube, two nanoparticles of SrSO4 and TiO2 or pure TiO2 nanoparticles are laid into a heterojunction with a side length of 300-550 nm and a wall thickness of 40-55 nm and in a hollow nanocube structure, and the wall of the heterojunction is provided with mesopores with a pore size of 6-20 nm. The preparation method of the porous thin-wall titanium dioxide / strontium sulfate heterojunction hollow nanocube comprises, a, preparing cubic strontium titanate, specifically, compounding strontium carbonate and titanium dioxide at a weight ratio of 1:1 with water and alkaline materials through a compound alkali and hydrothermal method to obtain the cubic strontium titanate; b, performing heating reaction on sulfuric acid and the cubic strontium titanate; c, performing washing and drying treatment to obtain the heterojunction in the hollow nanocube structure. According to the porous thin-wall titanium dioxide / strontium sulfate heterojunction hollow nanocube and the preparation method thereof,the prepared porous thin-wall titanium dioxide / strontium sulfate heterojunction hollow nanocube is high in photoelectric performance and can effectively increase the photoelectric conversion efficiency, the photo-induced electron hole separating efficiency and the water photolysis hydrogen production performance.

The invention belongs to the non-woven field and in particular provides a water-absorbent non-woven fabric which is mainly formed by cohering a water-absorbent layer and spun-bond non-woven fabrics at two sides of the water-absorbent layer together, wherein the water-absorbent layer consists of multiple layers of netlike polymer water-absorbent resin fiber layers. The invention also provides a method for preparing the water-absorbent non-woven fabric by adopting a method combining a textile technology with needling. The water-absorbent non-woven fabric provided by the invention is particularly suitable for the fields of filtration and clothing and is excellent in water absorbability and good in water retaining capacity. The invention also provides a medical non-woven fabric mainly comprising the water-absorbent non-woven fabric. The achieved beneficial effects are that the water-absorbent non-woven fabric provided by the invention is good in water absorbing property, good in tensile elasticity and good in ductility and cannot be broken easily. The preparation method of the water-absorbent non-woven fabric is simple in step and is suitable for popularization, and the obtained water-absorbent non-woven fabric is more stable in structure. The medical non-woven fabric provided by the invention is not adhesive to wounds and has TDP treatment functions at the same time, and the effect of TDP treatment is better and quicker.

The invention provides a preparation method of secondary metabolite mixture drug screening library for the drug screening based on protein crystal structure and the use of the drug screening library for screening drugs based on protein crystal structure. The preparation method is high in efficiency, rapid, accurate, reliable and practicable. By optimizing the raw medicines, the method avoids interference components and retains other components of the raw medicine. The inventive drug screening library helps to rapidly obtain a refined three-dimensional structure of a composite of target molecule and target protein.

The invention discloses a heating film with a graphene-based hot-pressed copper sheet structure and a preparation method thereof. The heating film includes a first insulating layer, a heating layer located on the first insulating layer, an electrode layer located on the heating layer, The protective layer positioned on the electrode layer, the second insulating layer positioned on the protective layer; the heat generating layer is a graphene layer, and the electrode layer is two electrode copper strips fixed on the heat generating layer by hot pressing, so Described graphene layer is made of following raw materials by weight, graphene 24-34, carbon black 6-8, polyol ester 2-5, bamboo charcoal powder 1-2, polydimethylsiloxane 1-3, turpentine 12‑18, Sodium Lauryl Sulfate 1‑3. The graphene heating film of the invention is resistant to aging and rubbing, and has a simple and easy manufacturing method.

The invention relates to ecological incense and a preparation method thereof. The incense is prepared from, by weight, 40-60 parts of Thuja sutchuenensis powder, 1-20 parts of dendrobium candidum powder, 1-20 parts of honey, 1-20 parts of special material escaping powder and 1-30 parts of machilus grijsii powder; the special material escaping powder is prepared by mixing powder obtained by cooking, drying and grinding stems of carbonized red oil sabina.c.cv.japonica with bamboo powder at the weight ratio of (8-9):(1-2). Accordingly, the defect that incense products in an existing market are monotonous in function is overcome, by means of cooperation of Thuja sutchuenensis, dendrobium candidum, machilus grijsii and honey, and by applying the special material escaping powder, the material escaping effect is improved; the incense has the effects of purifying air, regulating qi and blood, soothing the nerves and helping sleep.

The invention belongs to the diabetes traditional Chinese medicine physical therapy field, and concretely provides a traditional Chinese medicine composition conditioning diabetes. The traditional Chinese medicine composition comprises the following raw materials, by weight, 22-30 parts of radix astragali, 5-10 parts of gen-seng, 6-10 parts of schisandra chinensis, 6-10 parts of dark plums, 10-15 parts of polygonatum rhizome, 10-15 parts of mulberries, 10-15 parts of cassia seeds, 8-12 parts of radix puerariae and 8-12 parts of rhizoma anemarrhenae. The invention also comprises a preparation method for the above traditional Chinese medicine composition. The preparation method mainly comprises steps of extraction, concentration, liquid blending, filling, disinfection and the like. The beneficial effects are that the provided traditional Chinese medicine composition can condition diabetes effectively, thus patients can enter a honeymoon period rapidly, the honeymoon period can be prolonged effectively, and the recurrence rate is lowered. The provided preparation method is advantaged by concise steps and easy popularization, effective components of the raw materials can be extracted effectively furthest, and the traditional Chinese medicine composition with accurate effective component contents is obtained.

The invention relates to a nitrogen-doped carbon nanosheet / MXene composite nanomaterial as well as a preparation method and application thereof. In the composite nanomaterial, the carbon nanosheets and the MXene form an interpenetrating lamellar structure, and the nitrogen element is doped in the carbon nanosheets and the MXene. The problem that the electrochemical performance cannot be fully utilized due to stacking and accumulation of MXene nanosheets in the prior art is solved. The composite material disclosed by the invention can effectively overcome the defects of self stacking and accumulation of MXene, and the cycling stability of the battery is greatly improved; redox reaction and pseudocapacitance active sites with obvious MXene lamellar spacing are increased, and the specific capacity of the supercapacitor is improved, the preparation process of the composite material is simple, and industrial practice is facilitated.

The invention discloses a dry-cured tremella preparation method and belongs to the technical field of dried food preparation. The method specifically comprises the step 1 of harvesting, the step 2 of cleaning and slicing, the step 3 of drying and the step 4 of performing vacuum package. The method has the characteristics of being convenient to operate, high in efficiency and easy to popularize. The dry-cured tremella prepared through the method is delicious in taste, long in storage time, suitable for industrial production, good in taste, simple and convenient to eat and simple and practical in the steps of the preparation method.

The invention relates to a special cultivation film and a preparation method thereof. The special cultivation film is prepared from the following components in parts by weight: 20-40 parts of LLDPE, 30-40 parts of LDPE, 30-35 parts of metallocene polyethylene, 3.5 parts of glycerin monostearate, 1.2 parts of fatty acid amide, 0.3 part of an antifogging agent, 5 parts of a light stabilizer, 10 parts of a PE anti-ageing agent, 3 parts of hydrotalcite, 0.1 part of an antioxidant and 1 part of polyphthalic diamide. By carrying out modified treatment on base materials LLDPE and LDPE by virtue of an optimized constitution formula, the special cultivation film with a good antifogging effect and excellent physical and mechanical properties is obtained. The preparation method of the special cultivation film has the advantages that the steps are simple and reasonable, and the prepared finished product can meet the mechanical strength requirements of antifogging special cultivation films.

The invention discloses a preparation method of nanometer magnesium oxide composite material, and application thereof for removing lead ion in waste water. The preparation method comprises the following steps: mixing 10-40% of nanometer magnesium oxide, 10-30% of plant fiber, 10-30% of kaolin, 5-10% of gelatin, 5-10% of water-soluble resin, and 20-30% of water in proportion, drying, and the roasting for 30-240min at 200-600 DEG C, thereby obtaining the composite material. The obtained composite material is used for adsorbing Pb<2+> in the waste water, and the maximum adsorbing capacity can achieve 280mg / g. The nanometer magnesium oxide composite material disclosed by the invention has the advantages of being cheap and easy to obtain, high in adsorption efficiency, and small in environmentrisk.

The invention discloses a preparation method of high-purity hop total flavonoids, which comprises the steps of using hops as a raw material to obtain an extract by refluxing ethanol, treating it with a polyamide column, passing through a macroporous resin column, and eluting to obtain a solution, and decolorizing by activated carbon Spray-drying finally obtains total flavonoids of hops with high content and good appearance. The preparation method of the present invention has simple steps, and in the process, the use of organic solvents is less, the cost is low, the operation is safe and there is no environmental pollution, and the final product has good color, high product yield and content, is suitable for industrial production, and is fully applied The two different uses of hops for winemaking and medicinal use provide a path for the maximum utilization of hop raw materials.