294 results about "Liquid paraffin" patented technology

The invention relates to a polyethylene and silica gel mixed material, a preparation method thereof and application of the polyethylene and silica gel mixed material in a composite optical cable silicon core tube. The composite material comprises the following components in parts by weight: high-density polyethylene, an ethylene-siloxane copolymer elastomer, a maleic anhydride grafted polyolefin elastomer, hydroxylated nano silicon dioxide, liquid paraffin, a crystallization nucleating agent, an ultraviolet light absorber, an auxiliary stabilizer, a processing aid and color master batch. The liquid paraffin is formed by blending dual-molecular-weight paraffin with different carbon chain lengths, and part of the liquid paraffin is grafted and modified by polybutylene so as to enhance the anchoring capacity of the lubricating phase; in addition, nano cellulose crystals grafted by a PEG-PCL (Polyethylene Glycol-Polycaprolactone) block copolymer are introduced, so that the dimensional stability and the interface structure integrity of the material are synergistically enhanced. The composite material has excellent low friction, thermal oxidation stability, creep resistance and ultraviolet aging resistance, and is suitable for preparation of a high-performance composite optical cable silicon core tube.

The invention provides efficient gelatin hemostatic microspheres as well as a preparation method and application thereof, the preparation method comprises the following steps: mixing a gelatin solution with a tannic acid solution, and uniformly stirring to obtain a tannic acid modified gelatin aqueous solution; uniformly mixing span-80 with liquid paraffin to obtain an oil phase; adding the tannic acid modified gelatin aqueous solution into an oil phase, and uniformly stirring to obtain a mixed solution; the mixed solution is subjected to a cross-linking reaction under the ice bath condition, after the cross-linking reaction is completed, a reaction solution and acetone are mixed, liquid paraffin is removed after standing, and the tannic acid modified hemostatic microspheres are obtained after drying; mixing the tannic acid modified hemostatic microspheres with an adsorbent, and dehydrating to obtain the gelatin hemostatic microspheres. The prepared gelatin hemostatic microspheres can be attached to the surface of tissue and have the effects of high water absorption and rapid hemostasis.

The invention belongs to the technical field of non-woven fabrics, and particularly relates to a tire-fat-like non-woven fabric and a preparation method and application thereof. The raw material of the tire-fat-like non-woven fabric is tire-fat-like ES fibers; the ES fibers containing the tire-like grease are obtained by padding ES fibers in a tire-like grease microemulsion and drying the ES fibers; the raw materials of the tire fat-like microemulsion comprise a tire fat-like composition, a surfactant, a cosurfactant and deionized water, the fetal fat-like composition is prepared from the following raw materials: ceramide NP, phytosphingosine, cholesterol, liquid paraffin, squalane and plant essential oil, the plant essential oil comprises olive fruit oil, shea butter, a clove extract and a radix aucklandiae extract. The tire-fat-like non-woven fabric provided by the invention has the advantages of low loss rate of active ingredients, excellent antibacterial property and storage stability.

The invention discloses fluticasone propionate emulsifiable paste and a preparation method thereof. The preparation method of the fluticasone propionate emulsifiable paste comprises the following steps: S1, mixing liquid paraffin, isopropyl myristate and other auxiliaries, and heating to obtain an oil phase; s2, purified water, propylene glycol, disodium hydrogen phosphate dodecahydrate and other auxiliaries are mixed to obtain a water phase; and S3, adding the oil phase into the water phase, adding fluticasone propionate and the like after complete emulsification, uniformly stirring, and standing to obtain the cream. Compared with the prior art, the fluticasone propionate emulsifiable paste prepared by the invention is not easy to layer at high and low temperatures, and the obtained emulsifiable paste has better stability and is very beneficial to transportation, storage and the like of the product.

The invention relates to the technical field of preparation of food additives, in particular to a betacyanin microcapsule as well as a preparation method and application thereof. The preparation method comprises the following steps: jointly dissolving sodium alginate and soybean protein isolate in water to obtain an SA-SPI compound; the SA-SPI compound, CaCO3 and betacyanin are mixed, and a water phase is formed; mixing liquid paraffin, glacial acetic acid and Tween 80 to obtain an acetic acid-containing oil phase; mixing the water phase with the acetic acid-containing oil phase to form a water-in-oil emulsion, and standing to form calcium alginate gel beads; the calcium alginate gel beads are subjected to pre-freezing-freeze-drying treatment, and the betacyanin microcapsules are obtained. The prepared betacyanin microcapsule has the characteristics of controllable particle size, high stability and easiness in industrialization, and the application range of betacyanin is widened. In addition, the preparation method disclosed by the invention is safe and simple to operate, has the advantages of low cost and high benefit, and can be directly applied to large-scale production.

The invention relates to phase change concrete and a preparation method thereof. The concrete comprises the following components by kg / m < 3 >: 450-650 of Yunnan concrete stone; 200 to 400 parts of phase change aggregate; 450 to 550 parts of cement; 40-60 parts of silica fume; 600 to 800 parts of common sand; 5-7 parts of a high-efficiency water reducing agent; and 120 to 140 parts of water. The method comprises the following steps: 1, drying cloud concrete stone needing to pre-adsorb a phase change material in a drying oven until the weight is constant; 2, drying the paraffin phase change material into a liquid state, putting the cloud concrete stone into the liquid paraffin, and carrying out vacuum adsorption; 3, performing third-time modification on the cloud concrete stone after paraffin adsorption by using ultra-high-performance cement mortar twice and foam mortar once respectively; 4, performing saturated surface dry water absorption treatment on the unadsorbed phase-change material cloud concrete stone; and 5, pouring the Yunnan concrete stone, the phase-change aggregate, the cement, the silica fume and the common sand into a concrete mixer, and uniformly mixing to obtain the phase-change concrete.

The invention discloses a gas diffusion layer with a gradient pore structure and a preparation method of the gas diffusion layer. The preparation method comprises the following steps: 1, immersing a titanium diamond net into liquid paraffin; 2, absolute ethyl alcohol, tributyl phosphate, polyvinyl butyral and two kinds of spherical titanium powder with different granularities are evenly mixed to prepare second slurry containing coarse-grained spherical titanium powder and first slurry containing fine-grained spherical titanium powder, and the second slurry and the first slurry are sequentially sprayed to the surface of the titanium rhombus net filled with paraffin; and 3, degreasing and sintering the sprayed titanium diamond net for one-step forming to obtain the gas diffusion layer with the gradient pore structure. According to the method, the slurry containing the spherical titanium powder with the coarse granularity and the spherical titanium powder with the fine granularity is sequentially sprayed on the titanium diamond net and sintered, the gas diffusion layer with the gradient hole structure is obtained, it is guaranteed that the gas diffusion layer has the high catalyst utilization rate, high mechanical strength and good gas-liquid transmission, and the structure can be adjusted according to the actual working condition so as to regulate and control the performance of the gas diffusion layer; the method is suitable for the field of PEM electrolytic hydrogen production.

The invention relates to a cold compress bandage and a preparation method thereof. Belongs to the technical field of external medical dressings. A cold compress bandage comprises an elastic bandage adsorbed with a cool feeling liquid and a container or package providing the cool feeling liquid, the cool feeling liquid is a mixed emulsion composed of an O / W type emulsion and a W / O / W type emulsion, and an external water phase comprises, by mass, 2-3 parts of a hydrophilic emulsifier, 2-5 parts of a solubilizer, 0.2-0.5 part of a thickener and 50-75 parts of water; the oil phase comprises the following components in parts by mass: 10-25 parts of liquid paraffin, 3.0-7.0 parts of a cool feeling agent, 2.0-5.0 parts of an oily antibacterial agent and 0.5-2.0 parts of an oleophylic emulsifier; the inner water phase comprises the following components in parts by mass: 5-8 parts of a humectant and 10-20 parts of a water-based antibacterial agent. According to the cold compress bandage disclosed by the invention, the cool feeling liquid is prepared into oil-in-water and oil-in-water-in-water mixed emulsion, so that the cool feeling release time is effectively prolonged.

The invention relates to a string maintenance nanoemulsion and a preparation method thereof, and belongs to the technical field of string maintenance. The nanoemulsion comprises polysorbate 80 and sorbitan stearate 60 as main emulsifiers, glyceryl monostearate, cetyl alcohol and stearyl alcohol as auxiliary emulsifiers, liquid paraffin and xanthan gum for adjusting the consistency, chitosan-loaded sodium hyaluronate nanoparticles as a long-acting humectant, and glycerol and propylene glycol as humectants and also can be used as anti-freezing agents. Ethylparaben is used as a preservative; and essence and the balance of water can be selectively added. Uniformly mixing and stirring the water-soluble components; uniformly mixing and stirring oil soluble components; and adding the oil phase into the water phase, stirring to form primary emulsion, emulsifying, homogenizing, cooling, and adding essence to obtain the product. According to the invention, the chitosan-loaded sodium hyaluronate nanoparticles are introduced to realize long-acting moisturizing and moistening of strings, and have the advantages of fine and soft texture and the like.

The invention belongs to the technical field of food or medicine, and particularly relates to a preparation method of nattokinase sustained-release microspheres, which comprises the following steps: mixing an emulsifier span-80 with liquid paraffin to obtain an oil phase; adding chitosan into an acetic acid solution to prepare a chitosan water solution as a water phase; dropwise adding the water phase into the oil phase to prepare W / O type emulsion, dropwise adding a cross-linking agent A into the emulsion to obtain chitosan microspheres, and taking a chitosan microsphere nattokinase solution and a cross-linking agent B to obtain nattokinase-chitosan core microspheres; mixing the nattokinase-chitosan core microsphere with a cortisol aptamer solution, and incubating to enable the aptamer to be combined on the surface of the nattokinase-chitosan core microsphere; and adding a casein-PEG copolymer solution and a cross-linking agent C into the microspheres to obtain the cortisol response type intelligent switch microspheres. The nattokinase release amount can be dynamically adjusted day and night, the circadian thrombus risk rhythm is matched, the anti-thrombus effect is remarkably improved, side effects are reduced, and the nattokinase can be widely applied to the fields of functional food and drugs.

The invention provides solid-waste-based phase-change energy-storage lightweight aggregate applied to marine concrete and a preparation method of the solid-waste-based phase-change energy-storage lightweight aggregate, and belongs to the technical field of building materials. According to the invention, solid wastes such as coal gangue and fly ash are adopted as raw materials to prepare the ceramsite, and the ratio and firing conditions of the raw materials such as coal gangue and fly ash are adjusted to improve the mechanical properties such as mechanical strength and adhesive property of the ceramsite, so that the ceramsite is more suitable for marine concrete; and then liquid paraffin is injected into the ceramsite in a vacuum impregnation manner, so that the frost heaving resistance, temperature stress resistance and impact resistance of the marine concrete can be remarkably improved. Through three core innovations of solid waste resource utilization, lightweight high-strength aggregate preparation and phase change energy storage function integration, the problems of single material performance, high process consumption, low efficiency, insufficient function integration and the like in the prior art are systematically solved.

The invention discloses a hot-melt loxoprofen sodium patch and a preparation method thereof, the hot-melt loxoprofen sodium patch comprises a backing layer, an adhesion layer and a protective layer, the adhesion layer comprises the following components in percentage by weight: 5-6% of loxoprofen sodium or its hydrate, 19-26% of styrene-isoprene-styrene block copolymer, 5-15% of polyisobutene, 5-15% of hydrogenated rosin glyceride and 40-50% of liquid paraffin; by optimizing the model and dosage of the styrene-isoprene-styrene block copolymer and the polyisobutene, the adhesive force and cohesive force of the loxoprofen sodium patch are improved at the same time through the combined action, and the long-term stability can be kept.

The invention relates to the technical field of diamond saw blades, and provides a diamond saw blade and a preparation method thereof. The diamond saw blade comprises a disc base body and a tool bit fixed to the periphery of the disc base body, and the tool bit is prepared from, by weight, 30-45 parts of iron powder, 15-25 parts of copper powder, 8-12 parts of nickel powder, 8-15 parts of cobalt powder, 3-5 parts of tin powder, 2-5 parts of molybdenum powder, 1-3 parts of silicon-boron alloy powder, 0.5-2 parts of tungsten carbide powder, 20-25 parts of diamond particles and 0.05-0.1 part of liquid paraffin. According to the diamond saw blade provided by the invention, the scientificity and the accuracy of proportion matching of all the components in the raw material formula of the tool bit are improved, the stability of the sintering process is improved, and the condition that the hardness and the toughness of the tool bit are difficult to achieve the optimal balance is improved.

The invention discloses a preparation method and application of an endothelium corneum gigeriae galli and angelica sinensis ointment, and relates to the technical field of traditional Chinese medicine, the endothelium corneum gigeriae galli and angelica sinensis ointment comprises the following raw materials in parts by weight: a medicine solution: 1-3g of angelica sinensis extract and 30-35 parts of endothelium corneum gigeriae An oil phase: 1-5 g of white vaseline, 1-5 g of glycerin monostearate, 10-14 g of stearic acid, 5-8 g of liquid paraffin and 3-6 g of wool fat; a water phase: 0.2 to 0.5 g of triethanolamine, 0.5 to 1 g of glycerin, and 0.1 to 0.5 g of ethylparaben; according to the endothelium corneum gigeriae galli and angelica sinensis ointment, endothelium corneum gigeriae galli and angelica sinensis materials are adopted, endothelium corneum gigeriae galli has the effects of healing sore, promoting tissue regeneration, removing blood stasis and the like, angelica sinensis has the effects of replenishing qi, enriching blood and promoting blood circulation to remove blood stasis, and skin wound healing and capillary regeneration can be effectively promoted, local blood circulation is improved, and inflammatory response is inhibited; meanwhile, the ointment is soft in texture and can absorb percolate and inhibit microbial infection; the method is convenient, economical, practical, good in stability and suitable for application and popularization.

The invention relates to the technical field of high polymer material and automobile part manufacturing, and discloses a high-durability high-low temperature resistant automobile composite sealing strip, which is prepared from the following raw materials: ethylene propylene diene monomer, polyisoprene grafted maleic anhydride, pre-dispersed master batch, carbon black and a vulcanization system. The pre-dispersed master batch takes oxidized polyethlene wax as a carrier to wrap zinc oxide and D-mannitol. The phase change characteristic of the carrier is utilized, active components are isolated in the mixing and extruding stage, and scorching is prevented; the components are released in the high-temperature vulcanization stage to initiate anhydride ring opening, and a double cross-linked network with coexistence of covalent bonds and ionic bonds is constructed. According to the sealing strip, the macromolecular reactive plasticizer is used for replacing part of liquid paraffin, the atomization problem caused by micromolecule migration is solved, the high-temperature compression permanent deformation rate is remarkably reduced through a thermal reversible mechanism of an ion cluster, and excellent low-temperature rebound resilience and processing safety are both considered.

The invention relates to the technical field of papermaking, and particularly provides blue gray spunlace non-woven fabric base paper and a production process thereof. The raw paper comprises the following components in parts by weight: 90-120 parts of a fiber raw material, 1.5-2.6 parts of a coloring system, 6.5-13 parts of a color fixing system, 3.5-6 parts of a hydrophobic modification system and 0.5-2 parts of an auxiliary agent system. According to the invention, the mesoporous inorganic particles and bentonite in the coloring system are used for synergistically bearing the blue-grey composite dye, so that dye agglomeration is inhibited and nanoscale uniform dispersion is realized; acrylamide in the color fixing system is polymerized to form a physical network structure to construct a chemical color locking layer, so that the dye is doubly locked; in a hydrophobic modification system, liquid paraffin and stearic acid are self-assembled on the surface of the fiber to form a hydrophobic membrane, so that water dyeing is effectively prevented; all the functional components are stably distributed in the slurry and participate in curing and film forming, and the raw paper is endowed with excellent performance such as high color fastness and low decolorization rate through overall synergy.

The present application relates to the technical field of non-woven fabrics, and specifically discloses a deodorizing and antibacterial multifunctional non-woven fabric and a preparation method therefor. The deodorizing and antibacterial multifunctional non-woven fabric comprises the following components in parts by weight: 100-120 parts of a polymer, 2-4 parts of an antibacterial agent, and 4-6 parts of modified polyethylene, wherein the modified polyethylene is prepared by means of a reverse suspension method with a mixture of double-bond-containing polyvinyl alcohol, dopamine, sunflower stem piths, an initiator, glutaraldehyde and water as a water phase and a mixture of liquid paraffin and Span 80 as an oil phase. The deodorizing and antibacterial multifunctional non-woven fabric of the present application has the advantages of an antibacterial rate of up to 96% or more, a deodorization rate of up to 98.7% or more, and significant antibacterial and deodorizing effects.

Disclosed in the present invention are a sustained-fragrance-release ceramic material and a preparation method therefor. The present invention relates to the technical field of fragrance products. The preparation method comprises: S1, uniformly mixing flaky aluminum oxide and calcined kaolin powder; S2, heating and stirring the powder while adding molten liquid paraffin in a hot state and an additive, and stirring the mixture to obtain a ceramic slurry; S3, subjecting the prepared ceramic slurry to vacuum evacuation, stirring, and hot-press molding to obtain a ceramic green body; S4, embedding the ceramic green body in sintered aluminum oxide powder, then placing same in a kiln for primary firing, taking out an embedded and fired ceramic block after cooling, and then performing surface treatment; and S5, impregnating the treated ceramic block with fragrance, and after the impregnation with the fragrance is complete, performing encapsulation after the surface of the ceramic block is dried. By optimizing the microporous structure of porous ceramic blocks and using hot-press molding, the present invention resolves the contradiction between light weight and high strength in conventional porous ceramics while exhibiting a relatively high porosity.

The present application relates to string maintenance nanoemulsion and its preparation method, belong to string maintenance technical field. The nanoemulsion includes: polysorbate 80, stearic acid sorbitan 60 as main emulsifier, glycerin monostearate, cetyl alcohol, stearyl alcohol as auxiliary emulsifier, liquid paraffin, xanthan gum adjusts consistency, chitosan carries sodium hyaluronate nanoparticle as long-acting moisturizing agent, glycerol, propylene glycol is humectant and can be used as antifreezing agent; hydroxyphenyl ethyl as preservative; can also selectively add essence, the balance is water. The water-soluble ingredients are mixed and stirred uniformly; the oil-soluble ingredients are mixed and stirred uniformly; the oil phase is added to the water phase, and the primary emulsion is stirred and emulsified, and the essence is added after cooling, and the present application is obtained. The present application realizes long-acting moisturizing and nourishing of the string by introducing chitosan carrying sodium hyaluronate nanoparticles, and has the advantages of fine texture, softness and the like.

This invention belongs to the field of pharmaceutical chemistry, and specifically relates to a compound antifungal cream containing the traditional Chinese medicine ingredient tryptamine ketone and its application. The invention comprises the following components, with the following percentage content: stearic acid 10%~16%, glyceryl monostearate 3%~7%, liquid paraffin 5%~9%, tryptamine 0.1%~0.01%, terbinafine hydrochloride 0.00625%~0.000625%, glycerin 4%, triethanolamine 2%~6%, ethylparaben 0.5%, and the balance being purified water or distilled water. This invention is highly effective, low in toxicity, and exhibits low drug resistance.

The chip assembly comprises the chip and the adhesive film, the adhesive film is located on the top face of the chip, four sets of damping pieces are distributed on the bottom face of the adhesive film in a rectangular mode, magnetic attraction grooves are formed in the surfaces of the damping pieces, the bottom face of the adhesive film is fixedly connected with four sets of magnetic attraction blocks, and the magnetic attraction blocks are arranged on the bottom face of the adhesive film. Through the arrangement of the structure of the damping sheet, the magnetic suction groove and the magnetic suction block, the problem that the whole chip assembly needs to be replaced when the glue film is damaged and the performance is reduced due to the fact that a traditional preset glue film and a chip cannot be detached is solved, magnetic suction type connection is convenient to independently detach and replace when the glue film goes wrong, the cost and resource waste are reduced, and the service life of the chip assembly is prolonged. Through the arrangement of the glue film structure composed of the silica gel sheet, the heat conduction plate, the heat absorption plate and the heat dissipation plate, the silica gel sheet enhances the attachment and heat conduction with the chip, the multiple layers of graphite sheets of the heat conduction plate can rapidly conduct heat, the liquid paraffin in the heat absorption plate can buffer heat, and the heat dissipation plate and the heat dissipation fins on the heat dissipation plate effectively improve the heat dissipation efficiency. Therefore, the heat dissipation performance is integrally improved.

The invention relates to the technical field of traditional Chinese medicine external preparations, in particular to an industrialized preparation method of an emplastrum composition capable of improving safety. The preparation method comprises the following steps: partially dissolving rubber by using gasoline A, then adding rosin, and stirring for dissolving; adding activated zinc oxide, mixing, adding lanolin, vaseline, musk wind-dispelling and pain-relieving liquid extract, belladonna liquid extract, rutin extract, menthol, borneol, camphor, methyl salicylate and a gasoline B part, and performing pH regulation to obtain musk wind-dispelling and pain-relieving paste mucilage; the activated zinc oxide is obtained by the following steps: mixing zinc oxide and liquid paraffin, and standing for 2-4 hours in an environment of 120-140 DEG C, so as to obtain the activated zinc oxide. According to the technical scheme, on the basis of keeping the treatment effect of the original medicinal components, the technical problem that the musk wind-dispelling and pain-relieving ointment contains viscous matrix components such as rosin and rubber, so that the skin is easily stimulated, and adverse reactions such as skin erythema are generated is solved, and the musk wind-dispelling and pain-relieving ointment has good market prospects and social benefits.

To provide an antiadhesive material having good handleability and improved long-term antiadhesive properties.SOLUTION: The present invention relates to an adhesion-preventing material comprising a fiber sheet and an oil agent attached to the fiber sheet, wherein the oil agent comprises liquid paraffin and a surfactant. In the present invention, the adhesion-preventing material preferably has a peak derived from an oil agent in the vicinity of a wave number of 2860cm-1 in analysis by Fourier-transform ultraviolet spectroscopy-total reflection measurement method. In the present invention, the surfactant preferably has intermediate water in which an exothermic peak based on low-temperature crystallization of water is observed at 0 °C or lower in a temperature rising process in differential scanning calorimetry (DSC) in a wet state.SELECTED DRAWING: None

This invention provides a color developer for faded ink stains on Palmyra manuscripts, along with its preparation and application methods, relating to the field of cultural relic conservation and restoration technology. Specifically, it includes component A and component B; component A comprises hydrophobic fumed silica and n-butanol; component B comprises hydrophobically modified cellulose, liquid paraffin, and n-butanol; mixing components A and B yields the color developer for faded ink stains on Palmyra manuscripts. This invention uses low-cost, readily available, and environmentally friendly raw materials to prepare components A and B separately. Through a synergistic effect, the two components enhance the color and clarity of faded ink stains on the surface of the Palmyra manuscript, achieving a re-coloring effect. The prepared color developer is safe and reliable, exhibits significant color development, and also possesses excellent resistance to dry heat aging and ultraviolet aging. Furthermore, it does not alter the appearance of the Palmyra manuscript, has minimal interference with the manuscript itself, and will not damage the manuscript after use.

The invention belongs to the technical field of angiographic contrast agents, and particularly relates to an angiographic contrast agent for corpses and a preparation method of the angiographic contrast agent. The angiographic contrast agent for the corpse is prepared from the following components in parts by mass: 20 to 35 parts of iodine-containing polymer, 30 to 50 parts of iodo-benzene ring compound, 90 to 150 parts of glycerol triacetate, 30 to 40 parts of dimer acid and 600 to 800 parts of liquid paraffin, the iodine-containing polymer is obtained by copolymerizing (methyl) C4-6 alkyl acrylate, polyethylene glycol diacrylate and an iodine-containing monomer, and the iodine-containing monomer is selected from at least one of 3-iodine-ethyl acrylate, 3-iodine-methyl acrylate and (methyl) iodobenzyl acrylate. The blood vessel contrast agent disclosed by the invention can realize an excellent blood vessel contrast effect on a corpse, can also obtain a relatively ideal contrast effect for a corpse with relatively long death time, and provides powerful support for the corpse work.

The application discloses heparin sodium cream and a preparation method thereof, and belongs to the technical field of pharmaceutical preparation production. The heparin sodium cream comprises the following components: heparin sodium, propylene glycol, hydroxyphenyl ethyl ester, sodium dodecyl sulfate, glycerol monostearate and distearate, octadecanol, liquid paraffin, white vaseline and water. The preparation method comprises the following steps: preparing an oil phase and mixing an aqueous phase; taking part of the mixed aqueous phase and the oil phase to form a water-in-oil type primary emulsion; then adding the remaining mixed aqueous phase into the primary emulsion, inducing phase transition into an oil-in-water type cream under mild conditions, and obtaining the finished product after vacuum defoaming and gradient cooling. The application realizes high-efficiency emulsification under mild conditions below 80 DEG C and 3000 rpm through a controlled phase inversion emulsification process, so that the particle size (D99) of the emulsion droplets is less than 5 microns, and the problem that the active substance heparin sodium loses activity under severe conditions is solved completely, and the stability of the product is improved significantly.

The invention belongs to the technical field of pharmacy, and particularly relates to amorolfine hydrochloride cream and a preparation method thereof. The amorolfine hydrochloride emulsifiable paste is prepared from the following raw materials: amorolfine hydrochloride, octadecanol, white vaseline, modified liquid paraffin, polyoxyl (40) stearate, phenoxyethanol, edetate disodium, carbomer homopolymer type B, sodium hydroxide and water. The modified liquid paraffin is added into the amorolfine hydrochloride emulsifiable paste, so that on one hand, the modified liquid paraffin and the active ingredients of the amorolfine hydrochloride emulsifiable paste have a synergistic effect, the structure and the function of fungi are destroyed, and the death of fungal cells is accelerated; on the other hand, the amorolfine hydrochloride emulsifiable paste can inhibit respiration of corresponding enzymes through water locking, energy synthesis is blocked, and fungus growth is inhibited. After the amorolfine hydrochloride emulsifiable paste is prepared by combining the preparation method provided by the invention, the stability of the amorolfine hydrochloride is good, the uniform release of effective components of the amorolfine hydrochloride is promoted, and a scientific basis is provided for preventing and treating fungi.

The present invention discloses a microbial remediation method for soil in rare earth heap leaching mines. The method comprises the following steps: mixing a composite microbial agent, distilled water, sucrose, potassium dihydrogen phosphate, magnesium sulfate, and sodium chloride to obtain a mixed solution A; adding modified zeolite to the mixed solution A and stirring to obtain a mixed solution B; adding chitosan to an acetic acid aqueous solution, followed by adding polyvinyl alcohol and stirring to obtain a mixed solution C; mixing Span 80 and liquid paraffin uniformly and heating to 40-50°C; then adding the mixed solution C under stirring; and then sequentially adding the mixed solution B and glutaraldehyde to the mixture and continuing to stir to obtain slow-release microspheres; mixing calcium hydroxide, water, polyethylene glycol, and the slow-release microspheres to obtain a soil conditioner; rinsing the mine soil with water for 1-2 days, turning the soil when the weather is clear, then drying it for 1-2 days and leveling the land, and then spraying the soil conditioner onto the soil. The present invention is suitable for the improvement and remediation of soil in rare earth heap leaching mines and has the characteristics of high applicability and good improvement and remediation effect.

This invention belongs to the field of diesel additive technology, and particularly relates to a diesel cetane number improver and its preparation process, comprising the following steps: mixing isooctyl nitrate, n-hexadecane, n-eicosane, oleic acid, and 2,6-di-tert-butyl-p-cresol to obtain a premix; mixing anhydrous ethanol, glycerol, and an emulsifier, adding the premix, reacting, and drying to obtain microparticles; mixing ethyl acetate, isopropanol, n-butanol, and an emulsifier, adding hexadecyl alcohol and EVA-210 to dissolve, to obtain a film-forming solution; mixing ethyl acetate and isopropanol, adding the microparticles and the film-forming solution, removing ethyl acetate, isopropanol, and n-butanol, adding the solution to liquid paraffin and mixing to obtain the diesel cetane number improver. The diesel cetane number improver prepared by this invention can prevent isooctyl nitrate from directly contacting the external environment, slow down the generation rate of free radicals, effectively improve and stabilize the cetane number of diesel, and maintain the cetane number of diesel at a high level for a longer period of time.

The invention discloses a high-efficiency low-cost emulsion type organic silicon defoamer composition and a preparation method thereof, hydrogen-containing silicone oil and fatty alcohol polyether are subjected to hydrosilylation addition reaction to synthesize polyether modified silicone oil, the polyether modified silicone oil, self-made silicon paste and liquid paraffin are used as raw materials, and a composite emulsifier and other auxiliaries are added to prepare the high-efficiency low-cost emulsion type organic silicon defoamer composition. The polyether organic silicon defoaming agent is prepared by a mechanical emulsification method, and the composition comprises the following components: 1, high-viscosity organosilane-terminated polydimethylsiloxane with the viscosity of 7000-16000 mPa.S at the temperature of 25 DEG C, and the use amount of the high-viscosity organosilane-terminated polydimethylsiloxane accounts for 10-90% of the total amount of the composition; 2, hydrophilic inorganic filler: at least one hydrophilic inorganic metal oxide solid particle; the hydrophobic modification treatment agent is used for performing hydrophobic treatment on the surface of the hydrophilic inorganic filler; the catalyst is used for promoting siloxane equilibrium and silanol condensation reaction, and the use amount of the catalyst is 1-100% of the weight of the hydrophilic inorganic filler.