81results about How to "The preparation process is easy to obtain" patented technology

The invention provides a Sirolimus slow controlled release preparation and a preparation method thereof. By adopting the solubilizing methods including a solid dispersion technology or cyclodextrin inclusion technology or adding one or a plurality of surface active agents after micronizing drugs and the like, the solubility is dramatically improved and further the bioavailability is improved, therefore, a matrix type slow controlled release preparation is made by adding one or a plurality of framework materials and other accessories, or a diaphragm-controlled or osmotic pump type slow controlled release preparation is made by adopting slow controlled release materials for coating. The Sirolimus slow controlled release preparation has better solubility and dissolution rate, high bioavailability as well as slow controlled release effect, thus being capable of maintaining steady blood concentration, bringing down the concentration of peak, reducing the occurrence of adverse reaction and improving the safety of clinical medicines, in addition, the raw materials can be acquired easily, the preparation process is simple and feasible with high yield rate and low cost, and the large-scale industrial production can be realized and the economic benefit is marked.

The invention discloses a foaming agent for foam concrete. The foaming agent is prepared by uniformly mixing and stirring the following raw materials at room temperature, by weight : 5-10 parts of sodium dodecyl benzene sulfonate, 2-4 parts of sodium alcohol ether sulphate, 1-2 parts of sodium lauroyl sarcosinate, 1-2 parts of cocamidopropyl betaine, 0.2-0.6 part of polyethylene glycol (120) methyl glucoside dioleate, 0.3-0.5 part of triethanolamine, 0.5-1 part of polyacrylamide, 1-2 parts of hydroxyethyl cellulose, and 60-70 parts of water. The invention has advantages of easily available raw materials, low cost and simple preparation process; and the produced foaming agent has advantages of good stability, no deterioration, easiness for long-term preservation, prolonged shelf-life, good foaming power, good peaceability with various foam concrete substrates, no defoaming and unrestricted range of usage.

The invention discloses a magnetic carbon-based iron oxide compound material and a preparation method of the magnetic carbon-based iron oxide compound material. Particularly, the invention discloses a prepraation method of the magnetic carbon-based iron oxide compound material. The preparation method comprises the following steps of: (a) providing a mixture comprising a carbon-based precursor, elemental iron and a solvent; and (b) carrying out heating reaction on the mixture in the step (a), thus obtaining the carbon-based iron oxide compound material. The method has the advantages that materials are common and are easily available, and the process is simple, safe and effective and the like. The obtained compound material has stable magnetism, and is wide in application.

The invention discloses C230-strength-grade ultrahigh-performance fiber reinforced concrete containing coarse aggregates and a preparation method of the C230-strength-grade ultrahigh-performance fiber reinforced concrete. The concrete comprises the following components in parts by mass: 560 parts of cement, 64 parts of water, 900 parts of detritus, 780 parts of fine aggregates, 75 parts of fly ash, 63 parts of rice hull ash, 145 parts of silica fume, 16 parts of water reducing agent, 11 parts of excitant, 1.7 parts of cellulosic fiber, 78 parts of steel fiber, 50 parts of hydroxyl modified carbon nanotube dispersion liquid, 52 parts of graphene oxide dispersion liquid and 2.9 parts of defoaming agent. The prepared concrete has relatively high toughness and durability and relatively high bonding strength with profile steel and has the compressive strength of 235.48MPa, the breaking strength of 48.23MPa and the split tensile strength of 22.95MPa, the bonding strength of the C230-strength-grade ultrahigh-performance fiber reinforced concrete and the profile steel reaches 9.24MPa, and the impermeability grade of chloride ions reaches the VI grade. When being used in a profile steel and concrete combined structure, the C230-strength-grade ultrahigh-performance fiber reinforced concrete containing coarse aggregates is capable of effectively exerting the cooperative working performance between the profile steel and the concrete and making up the defects that the bonding performance of the profile steel and the concrete is poor and the respective mechanical performances of the profile steel and the concrete cannot be sufficiently exerted.

The invention discloses traditional Chinese laxative medicine, which consists of raw materials in part by weight: 5-50 parts of hemp seeds, 5-50 parts of cassia, 1-20 part(s) of radix polygonati officinalis, 1-20 part(s) of liquorice and 1-20 part(s) of jasmine. Decoction, pills, dropping pills, granules, tablets, hard capsules, soft capsules, decoction cream, syrup, orally-taken liquid medicine, compound wine and beverage prepared according to the technical scheme all have laxative effects but less intestinal irritation, no dependence can be caused, and the medicine can be used for the treatment of constipation resulting from a variety of causes. The invention also discloses a traditional Chinese medical product with a laxative effect.

The invention discloses a high-strength titanium-aluminum alloy material and a preparation method thereof. The high-strength titanium-aluminum alloy material is made of the following raw materials in parts by weight: 60-70 parts of titanium powder, 20-30 parts of aluminum powder, and 20 parts of zirconium silicide ‑30 parts, 4‑9 parts of flumagnesite powder, 10‑20 parts of silicon nitride, 4‑9 parts of mica powder, 2‑4 parts of trisodium phosphate, 6‑8 parts of germanium dioxide, 6‑8 parts of nano boron fiber , 4-8 parts of yttrium oxide, 12-16 parts of synthetic wax. The high-strength titanium-aluminum alloy material prepared by the method of the present invention has higher strength, hardness, wear resistance and corrosion resistance than similar products on the market, and prolongs the service life of the alloy parts; and the raw materials are easy to obtain, the processing cost is low, and the preparation process Simple, easy to control parameters, safe and environmentally friendly production process, suitable for large-scale industrial production.

The invention discloses a preparation of different active positions of an artemisia sacrorum extract. The preparation method comprises the following steps: drying overground parts of fresh artemisia sacrorum plants at a maturation stage in shade, crushing, carrying out alcohol extracting, carrying out vacuum concentrating and drying to obtain the artemisia sacrorum extract; dissolving the artemisia sacrorum extract in distilled water, sequentially extracting by using petroleum ether, ethyl acetate and normal butanol to obtain four different active parts of petroleum ether, ethyl acetate, normal butanol and aqueous phase. An acaricide prepared by using the artemisia sacrorum as a plant source has very obvious contact toxicity on agricultural mites, has a growth-promoting effect on crops, improves the productivity and stress resistance of the crops in a mite killing process and promote the increase of yield and income in agricultural production. As a safe, non-toxic and environment-friendly plant source pesticide, the artemisia sacrorum extract is environmentally friendly, is safe to natural enemies of pests and people and livestock, and has great significance of establishing novel green ecological agriculture.

The invention relates to a sustained-release tacrolimus eye-drops preparation. The sustained-release tacrolimus eye-drops preparation is characterized by being prepared from tacrolimus playing a pharmacological role, radix astragali and/or pseudo-ginseng serving as a mucosal adhesive polymer medicine release system, and pharmaceutically acceptable pharmaceutical adjuvants for local eyes, wherein by weight, 100 parts of sustained-release tacrolimus eye-drops preparation contains 0.01-1.0 part of tacrolimus, the weight ratio of the tacrolimus to the radix astragali and/or pseudo-ginseng is 1 to (0.5-5.0), and the weight ratio of the radix astragali to the pseudo-ginseng is 1 to 3. The sustained-release tacrolimus eye-drops preparation prepared by a preparation method has the advantages of good intraocular penetration, high intraocular bioavailability, little toxic or side effect and capabilities of treating and preventing ophthalmic immune-related diseases such as autoimmune uveal retinitis.

The invention discloses a compounded ophthalmic preparation which comprises a solid component A and a component B, wherein the component B is used as a buffer isotonic solution; the component A comprises a chondroitin sulfate cross-linking modified carboxylated beta-cyclodextrin carrier as well as components, namely sodium hyaluronate, trehalose, glycine betaine and alanyl glutamine matrix which are carried by the carrier; and the component B as the buffer isotonic solution comprises povidone, taurine, glycerinum and/or a sodium chloride isotonic agent, an antibacterial agent, a pH value adjusting agent and injection water. The preparation disclosed by the invention is used for alleviating asthenopia and relieving xerophthalmia symptoms, has very high stability and can be preserved for a long time without a preservative.

The invention belongs to the technical field of cosmetic preparation, and particularly relates to an acne removal composition and a preparation method thereof. The composition includes 5-15 parts of moisturizing agent, 0.3-1 part of solubilizing agent, 0.5-2 parts of preservative, 0.01- 0.1 part of chelating agent, 0.5-1 part of anti-allergic agent, 0.2-0.5 part of aqueous thickener, 0.01-0.1 partpH regulator, 3-5 parts of iris florentina root extract, 5-8 parts of aloe batbadensis extract, 0.1-0.5 part of alternate leaf cajeputtree leaf oil, 1-2 parts of phellodendron bark extract, 0.5-1 part of royal jelly extract and 60-80 parts of deionized water. The components of the acne removal composition are synergistic, and the acne removal composition has effects of continuous oil control andacne removal. The acne removal composition can inhibit the growth of facial acne, inhibit the formation of acne, improve acne marks and rough skin, gradually deeply weaken acne marks and promote the renewal of the stratum corneum of the skin. The acne removal composition has effects of integrating anti-inflammation, sterilization, antiallergy, oil secretion balance and soothing repair of acne marks.

The invention relates to an aluminum anode oxidation dual-test-piece experiment device which comprises a DC (direct-current) stabilized power supply and a glass container, wherein the glass container are symmetrically provided with two combined lead electrodes; the middle part of the glass container is provided with two anode oxidation test pieces; two negative electrode leads out of a DC stabilized power supply negative electrode terminal are respectively connected to the middle parts of the upper surfaces of the two combined lead electrodes; and two positive electrode leads out of a DC stabilized power supply positive electrode terminal are respectively connected with upper ends of the two anode oxidation test pieces. The experiment device has the most obvious characteristic that dual test pieces can be tested simultaneously, so that the speed and efficiency for preparing test pieces are greatly improved, the research process is accelerated greatly, and limited experiment resources can be saved.

The invention discloses a preparation method of a special rice fertilizer with comprehensive nutrients, comprising the following steps: stirring sodium nitrate, ammonium sulfate, a potassium magnesiumphosphate fertilizer, vermiculite powder, fly ash, Chinese medical stone powder, borax and coconut shell carbon powder, sending the materials into a melting tank and heating and stirring, heating andcontinuously stirring, and filtering to obtain a melt; mixing furfural residue, corn germ meal, fermented oil residue, pigeon dung, propolis, magnesium citrate and ferrous sulfate, adding water, grinding, heating, adding an ammonium chloride compound and the melt and uniformly mixing to obtain pulp, sending the pulp into a rotary pulp shooting machine (a pulp shooting port of the rotary pulp shooting machine is positioned above a drying tower), letting the pulp be sprayed into fertilizer drops above the drying tower from the pulp shooting port of the rotary pulp shooting machine, and settlingand drying in the drying tower so as to obtain the special granular rice fertilizer. The preparation technology is simple. The fertilizer has more comprehensive and balanced nutrients and can be usedto efficiently provide rice with nutrients for a long time. Labor cost is low, labor force can be saved, and environmental pollution is reduced.

The invention discloses flame-retarding liquid and a preparation method of the flame-retarding liquid. The flame-retarding liquid is prepared from the following components in parts by weight: 100 parts of water-soluble polyesteramide, 30 to 100 parts of starch, 1 to 5 parts of phosphomolybdic acid, 1 to 3 parts of nickel aminosulfonate, 40 to 60 parts of melamine, 80 to 180 parts of phytic acid, 20 to 35 parts of ethylene urea, 400 to 700 parts of water and 80 to 185 parts of sodium methyl silicate through mixing and reacting. The preparation method can be implemented according to the following steps: mixing the melamine, the phytic acid, the ethylene urea and the water and reacting; then adding the water-soluble polyesteramide, the starch, the phosphomolybdic acid and the nickel aminosulfonate and heating to carry out the second time of reaction; then adding the sodium methyl silicate, and cooling and carrying out the third time of reaction; finally, ageing and standing at room temperature, and filtering to remove dreg. The flame-retarding liquid disclosed by the invention is water-based flame-retarding liquid and does not contain halogen and aldehydes substances; the flame-retarding liquid is used as a flame-retarding coating and has good flame-retarding and weather-resisting performances.

The invention provides an adhesive for a self-adhered wet paving waterproofing roll and a preparation method of the adhesive. The adhesive is prepared from the following raw materials in parts by weight: 100 parts of high-strength cement, 70-100 parts of quartz sand, 10-30 parts of an active master batch, 12-28 parts of activated acrylic rubber powder, 5-14 parts of hydroxy propyl cellulose, 2-6 parts of a water reducing agent and 2-6 parts of an early strength agent. The adhesive for the self-adhered wet paving waterproofing roll provided by the invention overcomes the defects that the traditional lean concrete grout is infirm in bonding and easy to crack and peel and the waterproofing effect of the waterproofing roll is influenced.

The invention discloses a preparation method of fertilizer special for rice and capable of reducing the labor cost. The method includes the following steps of stirring ammonium chloride, chitosan, water and paraffin, adding formaldehyde in a stirring state, continuing stirring, adding absolute ethyl alcohol, adjusting the pH value of a system and carrying out filtering and washing to obtain a first material; stirring the first material, ammonium nitrate, ammonium bicarbonate, triple superphosphate, montmorillonoid, calcined kaolin, expanded perlite, borax and coal gangue, conveying the mixtureto a fusion tank for heating and stirring, raising the temperature, continuing stirring and conducting filtering to obtain a second material; mixing manioc dregs, shrimp head meal, distillers' grains, mushroom dregs, royal jelly, zinc humate and 6-urea iron trinitrate, adding water, conducting grinding, raising the temperature, adding the second material for even blending to obtain slurry, and conveying the slurry into a rotary slurry spraying machine, wherein a slurry spraying port of the rotary slurry spraying machine is positioned above a drying tower, the slurry is sprayed into fertilizerliquid drops above the drying tower from the slurry spraying port of the rotary slurry spraying machine, and the slurry subsides and is dried in the drying tower to obtain the granular fertilizer special for the rice.

The invention discloses a preparation method of Chinese chestnut peel extract containing ceramide. The preparation method comprises the following steps: S1, taking Chinese chestnut peel raw materialsand crushing; adding an extracting solvent and extracting; decompressing extracting filtrate to recycle the solvent; concentrating in vacuum to obtain concentrated extract; S2, adding an alkaline solution into the extract and carrying out hydrolysis to obtain hydrolysate; S3, carrying out macroporous resin column separation on the hydrolysate and washing a resin column with water until flowing-outliquid is colorless; eluting and collecting an eluting solution; decompressing and concentrating; drying to obtain Chinese chestnut peel crude extract; S4, dissolving the Chinese chestnut peel crudeextract with alcohol and eluting on the column; carrying out thin layer chromatography detection; collecting fractions by sections; combining the fractions and concentrating and drying to obtain the Chinese chestnut peel extract. According to the preparation method disclosed by the invention, ceramide substances are extracted from Chinese chestnut peels; the raw materials are easy to obtain and are green and environmentally friendly; a preparation technology is simple and easy to control; the quality of a product is stable and the production cost is low; the content of the ceramide in the obtained extract can reach 95 percent.

The invention discloses a long-acting slow-release fertilizer used in a planting early stage of Pseudostellaria heterophylla and a preparation method thereof. The long-acting slow-release fertilizer comprises a fertilizer component and is formed through the steps that the fertilizer component is adsorbed by porous starch, and uniformly mixed with a water-soluble solid powder-like carbon source anda carrier material and mutually dissolved, and then solidified and smashed into particles, wherein a using proportion of the fertilizer component : the porous starch : the water-soluble solid powder-like carbon source and the carrier material is 1:1:(1.2 to 1.5). The preparation method comprises three steps of uniformly mixing fertilizer component, adsorbing and coating. According to the long-acting slow-release fertilizer, based on biology and cultivation characters of the Pseudostellaria heterophylla, the fertilizer component is innovatively coated with a slow release system, thus effectively solving a fertilizer replenishing and long-acting problem that the Pseudostellaria heterophylla likes the fertilizer but not resistant to the fertilizer; meanwhile, a dosage of the fertilizer is reduced, an utilization ratio of the fertilizer is improved, the fertilizer is only needed to be applied once without topdressing, the applying is convenient, labor-saving and safe, the fertilizer efficiency after applying is stable and, and is powerful in later stage, and disease-resistant and lodging-resistant effects, yield increasing and plant soil pollution reduction are realized.

Aloe cream for removing speckle, whitening and beautifying skin is disclosed and includes following raw materials by weight: 2-10 parts of aloe extract, 3-10 parts of ginkgo, 1-7 part of honey, 2-9 parts of pearl powder, 1-5 parts of ginseng, 10-40 part of fresh milk, 0. 1-0.5 part of essence and 60-120 parts of deionized water. A preparation method comprises grinding semen Ginkgo, pearl powder and radix ginseng, sieving with a sieve having a size of 200 meshes, and stirring and uniformly mixing the powder for later use; uniformly mixing aloe extract, honey, fresh milk and deionized water forlater use; mixing the powder and the mixture; then adding essence, and fully stirring the mixture to obtain a finished product. The cream has the advantages that the cream can effectively remove facial spots and can also make skin tender and white. At that same time, the cream has the advantage of easy availability of raw materials, simple preparation process, convenient use, remarkable effect, non-toxicity, no side effect, mild performance and no irritation to skin.

The invention discloses a degradable composite material for plastic bottles and a preparation method thereof. The degradable composite material for the plastic bottles is prepared from the following raw materials in parts by weight: 55-75 parts of polylactic acid, 12-22 parts of ginkgo sawdust, 10-30 parts of gelatin, 6-12 parts of ramie fiber, 5-10 parts of chitosan, 5-15 parts of canna starch, 2-6 parts of glass fiber, 1-6 parts of calcium phosphite, 1-4 parts of magnesium hydroxide, 2-6 parts of nano-silica, and 2-5 parts of gluconic acid. The degradable composite material for the plastic bottles disclosed by the invention has good degradation performance, and can be relatively well used for preparing plastic bottles; moreover, white pollution can be avoided so as to be more environmentally friendly. In addition, the raw materials are easy to obtain, and the preparation processes are simple and easy to implement; and thus, promotion is facilitated.