70results about How to "Not easy to dilute" patented technology

The invention discloses high-entropy alloy powder for laser cladding and a preparation method of a cladding layer. The high-entropy alloy powder comprises Ti, Zr, V, Nb, Ta and Mo. In addition, high-entropy alloy powder which comprises Ti, Zr, V, Nb, Ta, Mo and W, high-entropy alloy powder which comprises Ti, Zr, V, Nb, Ta, Mo, W and Cr and the preparation method of the cladding layer of the high-entropy alloy powder for laser cladding are provided. The high-entropy alloy powder mainly comprises two characteristics, namely, the high-entropy effect and the cocktail effect, each kind of powder exerts respective advantages, and therefore the cladding layer with high hardness, high corrosion resistance, excellent tempering softening resisting performance and excellent structure performance is obtained. Metallurgical bonding is formed by an alloy layer and a matrix through laser cladding; the bonding strength of the cladding layer and the matrix is greatly improved, and the heating speed is high; metal of the cladding layer is not prone to being diluted by the matrix; little heat deformation is generated; and therefore the part rejection rate is low.

The invention belongs to novel materials in tunnel construction, in particular to shield synchronous grouting slurry capable of effectively controlling stratum displacement caused by shield construction and tunnel floating after escaping from the shield tail. The properties of the novel shield synchronous grouting slurry material relate to the control of stratum settlement caused by shield construction, the tunnel floating after escaping from the shield tail, and the long-term stability of the tunnel. The invention aims at overcoming the shortcoming in condensation time of conventional single-fluid activity and inertia material, mainly adopts yellow sand, lime putty and fly ash, and adds proper amount of additives to prepare the high-quality synchronous grouting material with high density, high early strength, small shrinkage deformation, good fluidity, good filling property, good stability, seismic resistance and no liquefaction. By the application of the synchronous grouting slurry in engineering test, the invention effectively controls the ground settlement and the tunnel floating after escaping from the shield tail, simultaneously excellent performance and construction effect of the synchronous grouting material obtain general consent from the building side and the construction side, and the synchronous grouting slurry has practicality and promotion value.

A cyclosporin eye gel for treating the rejection reaction of corneal transplantation, keratoconjunctival xerosis, catarrhal conjunctivitis, and chemical burn of eye is prepared from cyclosporin, boric acid, borax, trichloro-tert-butanol, etc. Its advantages are long stay time in eye and high curative effect.

The invention discloses a plugging agent and a preparation method thereof. The plugging agent comprises a composition of a water-soluble hydrophobic associated polymer or a water-soluble hydrophobic associated polymer. The preparation method of the plugging agent is a copolymerization cohydrolysis method or a copolymerization posthydrolysis method. The plugging agent easily enters a leakage layer and has good viscoelasticity, so that the plugging agent can pass a throat and expand to fill a leakage crack and a solution cave space, meanwhile, can automatically stop flowing in the leakage layer and is unlikely to mix with oil, gas and water, thus a gel 'slug' with high viscosity and gel strength, which is capable of separating fluid in formation from fluid in a shaft, is formed; and the slug has enough starting pressure difference greater than the difference between the pressure of a mud column and the pressure of the formation fluid so as to achieve the purpose of plugging. The plugging agent and the preparation method thereof can be used for effectively solving various serious leakage and have good application value and social value.

The invention discloses a cement-polyurethane composite grouting process capable of blocking water fast. The cement-polyurethane composite grouting process includes the steps of a, performing engineering exploration, to be more specific, designing a plurality of holes after the optimal reaction positions of polyurethane grout are determined according to the stratum cracks or the flowability of flowing water, wherein the holes should communicate water leakage points as much as possible or penetrate a plurality of stratum cracks to allow one hole to penetrate multiple stratums; b, drilling; c, grouting, to be more specific, simultaneously and alternately grouting the polyurethane grout and cement grout into all holes, using the instant foaming and curing feature, which uses water to stop water, of the polyurethane grouted first to stop and block water, using the cement grout grouted later to stop the backflow of the polyurethane so as to form a structure with grouted holes and front blocking and back protection, and repeatedly and alternately grouting for multiple times until water burst is blocked; d, continuing grouting for a certain period of time after the water burst is blocked to guarantee that blocking is completed. By the arrangement, the cement-polyurethane composite grouting process is simple in procedures, capable of blocking water fast, and capable of integrating blocking and reinforcing.

The invention refers to the compound applied technique of two components of adjunct medical material-sodium hyaluronate and glycerin, in ophthalmic preparation. Its main technique: the compound base material is added to the ophthalmic preparation to make into stable water-soluble transparent eye drops; sodium hyaluronate is 0.05%-0.5% (g / ml) and glycerin 0.1%-2.5% (g / ml), and the mixed proportion: the former : the latter=1:1-1:4, and the optimal project: the former 0.05%-0.25%, the latter 0.1%-0.5%, and the mixed proportion: 1:2-1:4, and they can be added in multiple eye drops.

The invention discloses hydrophobic gel composite cement, and relates to the technical field of cement slurry plugging in petroleum drilling. The composite cement comprises the following components in percentage by weight: 0.15 to 0.25 percent of hydrophobic gel, 10 to 30 percent of hydrophobic curing agent, 8 to 15 percent of coagulant, and the balance of cement. The invention provides a preparation method for the composite cement at the same time. By introducing the hydrophobic gel into a cement system, the water repellency of the cement slurry system is improved, the strength of a plugginglayer is improved, the mixing alternation of stratum water and cement slurry can be effectively inhibited, the tendency of gradual enhancement along with the time after the composite cement is injected into a leakage layer is ensured, the pressure bearing capacity of the leakage layer is improved, the loss problem of a loss return leakage well is solved, and the one-time plugging success rate is improved and exceeds 50 percent.

The Yimaikang dispersion tablet consists of fleabane extractum and medicine carrier. Its recipe includes fleabane extractum, lactose, microcrystalline cellulose, low-substituted hydroxypropyl cellulose, cross-linked polyvidon, steviosin, alcohol, fine silica gel powder and magnesium stearate. The dispersion tablet can disintegrate completely in 3 min to reach homogeneous dispersive state and its effective component andrographolide has dissolving rate reaching 60 % in 10 min. It is used in treating ischemic cerebral vascular diseases, cerebral hemorrhage sequela, vein obstruction, etc. and has fast acting, good taste and convenient taking.

The invention provides a water plugging agent for carbonatite and a preparation method and a using method thereof. The water plugging agent consists of the following raw materials in part by weight: 5 to 14 parts of cement, 4 to 8 parts of quartz, 0.1 to 0.5 part of cement flocculating agent, 4 to 11 parts of density lightening admixture, 1 to 2 parts of grid structure agent and 72 to 74 parts of water. The water plugging agent has high bonding strength and low density, and is suitable for high-temperature and high-mineralization carbonatite oil wells so as to solve the problem that the water plugging agent in the prior art is not suitable for the high-temperature and high-mineralization environment, has poor bonding strength and high density, and cannot effectively control water or improve the oil recovery ratio.

The invention provides a tacrolimus ophthalmic in-situ gel preparation and a preparation method thereof, which micronizes medicaments or adopts the solid dispersion technology, the cyclodextrin inclusion technology or the like to obviously improve the solubility and then to prepare into an ophthalmic preparation which is in the liquid state in vitro and is in the gel state when being dropped into eyes. The invention is applicable to the treatment for preventing and curing ophthalmic corneal transplantation rejection, keratoconjunctivitis (KC), ocular allergic disorders and the like. The invention prepares tacrolimus into the ophthalmic in-situ gel for the first time. The ophthalmic gel is in the liquid state in vitro, the dosage can be easily and accurately controlled, the operation is convenient, and the ophthalmic gel can be uniformly spread when being dropped into eyes to form the gel. The ophthalmic gel can stay in eyes for long, can not be easily diluted by tears, can maintain the concentration of the effective medicaments, enhances the treatment effect, and has the advantages of less stimulation and good biocompatibility, thereby being an effective new ophthalmic medicine, being applicable to the clinic treatment and having extensive development prospect.

The invention mainly provides a high-performance inert slurry for grouting of the back of a shield tunnel segment, belonging to the technical field of shield tunnel construction. The high-performance inert slurry comprises the following components in proportion by weight: 90kg / m<3> of slaked lime, 410kg / m<3> of fly ash, 780kg / m<3> of river sand, 465kg / m<3> of water, 105kg / m<3> of sodium bentonite and 3kg / m<3> of FD-3 high-concentration and high-efficiency water reducing agent, wherein the mass ratio of the fly ash to the slaked lime is 4.56:1, and grade II fly ash is adopted; the mass ratio of the total consumption of the slaked lime and the fly ash to the river sand is 1.56; and the addition of the sodium bentonite accounts for 22.8% of the water consumption. The invention overcomes the defects of long time of coagulation, low strength of induration and large volume shrinkage of the current inert slurry, realizes good matching of filling property, flowing property and bonding strength, has the advantages of convenient construction, easy control of quality of the slurry, simple mixing of the slurry and lower unit price of the slurry, can obviously reduce the engineering cost, and has excellent economic benefit and social benefit.

The invention relates to the technical field of pesticide penetrant, in particular to composite type pesticide penetrant. The pesticide penetrant is prepared from, by weight, 2-30 parts of anionic surfactant, 1-20 parts of nonionic surfactant and 50-97 parts of water, and further comprises 0.1-5 parts of corrosion remover. Anionic surfactant is sodium diethylhexyl sulfosuccinate, and nonionic surfactant is fatty alcohol-polyoxyethylene ether. The ratio of fatty alcohol-polyoxyethylene ether to sodium diethylhexyl sulfosuccinate is (1-6): (1-6). Anionic surfactant and nonionic surfactant are mixed according to a scientific ratio. The production cost can be reduced on the premise of improving the pesticide effect, the technology is simple, and production operation is convenient. The pesticide penetrant is thick liquid which is very soluble in water, and has the effects of emulsification, permeation, humidification, adhering and the like.

The invention discloses a direct methanol fuel cell membrane electrode structure which comprises a positive electrode gas diffusion layer, a positive electrode micro-pore layer, a positive electrode catalytic layer, a proton membrane, a negative electrode catalytic layer, a negative electrode micro-pore layer, and a negative electrode gas diffusion layer, wherein the proton membrane is arranged in the middle of the direct methanol fuel cell membrane electrode structure. The direct methanol fuel cell membrane electrode structure is characterized in that the positive electrode gas diffusion layer and the negative electrode gas diffusion layer are made of carbon paper, carbon cloth or other porous conductive plates subjected to hydrophobic treatment; the PTFE contents of the positive electrode gas diffusion layer and the negative electrode gas diffusion layer are 1-50wt%; a positive electrode micro-pore layer is coated on the positive electrode gas diffusion layer; a negative electrode micro-pore layer is coated on the negative electrode gas diffusion layer; and the PTFE contents of the positive electrode micro-pore layer and the negative electrode micro-pore layer are generally identical, that is, are 2-50wt%, and the apertures of micro-pores are generally identical. The metal carrying capacity of a catalyst in the positive electrode catalytic layer is about 1-8mg / cm<2>, the metal carrying capacity of the negative electrode catalytic layer is within 0.1-6mg / cm<2>. The invention further discloses a method for preparing the direct methanol fuel cell membrane electrode structure.

The invention discloses an andrographolide dispersed tablet and preparation method, wherein the tablet is prepared from andrographolide and pharmaceutical carrier, the prescription for each 1000 dispersed tablets includes, andrographolide 50-100g, lactose 50-200g, crystalline cellulose 50-250g, low substituted methylcellulose propylene glycol ether 20-150g, crosslinked povidone 20-150g, stevioside 2-20g, right amount of 95% ethanol, silica gel powder 2-20g, magnesium stearate 2-10, the invention has the advantages of good taste, convenient in use, quick action, and can be used for treating diseases including respiratory tract infection and bacteria dysentery.

The invention discloses a polyurethane grouting leak-stopping material, relating to grouting leak-stopping waterproof materials for building engineering. The polyurethane grouting leak-stopping material comprises the following ingredients: 35-50 weight portions of high-molecular binary or trihydric alcohol, 15-45 weight portions of isocyanate, 2-5 weight portions of dibutyl phthalate, 10-20 weight portions of acetone, and 3-6 weight portions of other auxiliary agents. The polyurethane grouting leak-stopping material is a waterproof consolidating material which has strong waterproof leak stopping capability and high consolidating intensity, has the advantages of good hydrophobic performance, high chemical stability, large penetration radius and solidification volume ratio, high intensity, good toughness, and adjustable viscosity and solidification time, is suitable for grouting various cracks, and has no corrosion to steel bars, good cohesiveness with various base materials, and strong impermeability.

The invention discloses a traditional Chinese medicinal gelling agent, wherein the main medicaments include pearl liquid or pearl powder hydrolysate and borneo camphor, the adjuvant includes right amount of gel base material, isotonic conditioning agent, pH modifier and water for injection. The invention also discloses the process for preparing the gel and the control method.

The invention discloses an irreversible vagina antibiosis gel preparation and a preparation method thereof. The vagina antibiosis gel preparation will not decrease the gel solidifying strength following the change of season or temperature. In 100ml gel preparation, the raw materials comprise 0.5 to 39.5 g chitosan, 1.5 to 23.5 g dried scallop flavor powder, 0.5 to 4.5 g wormwood flavor powder, 0.5 to 3.5 g cool gel, 0.5 to 2.5 g gelatin, and balance of purified water. The preparation method thereof comprises the steps of: mixing the raw materials in proportion, adding in purified water till reaching the required quantity, regulating ph value ranged between 5.0 and 7.0 by using acid-base regulating agent, preparing irreversible gel, and then standing by for a whole night. The vagina antibiosis gel preparation of the invention has the functions of cleaning and nursing the vagina and cervix uteri of adult women and preventing the pathological changes. After the antibiosis gel is put into the vagina, the gel will uniformly distribute on the vagina mucosa and the cervix uteri so as to kill pathopoiesia microorganisms for a long time and restrain the growing of cancer cell, lubricate the vagina and perform anti-infection and repairing functions.

The invention provides a traditional Chinese medicinal gelling agent, which comprises bear gall powder and natural ice as the main medicaments, as well as right amount of medicinal adjuvant including gel base material, isotonic conditioning agent, pH regulator and distilled water. The invention also discloses the process for preparing the gel and the control method.

The invention relates to a high-flowing micro-expansion anti-dilution grouting agent used for cement concrete pavement slab suspending, which consists of 0-85% of fine sand, 14-85% of fly ash, 0.5-1.5% of water reducing agent, 0-1% of early strength agent, 0-25% of expansion agent and 0-5% of air-entraining agent. In the cement concrete pavement slab suspending, cement and water also need to be added in the high-flowing micro-expansion anti-dilution grouting agent, and evenly stirred for use, so that the grouting agent does not have bleeding lamination or shrinking, can compensate the shrinking of slurry or has certain expansion property, and serum is even, not easy to be diluted by moisture below a slab, and good in quality, and has the function of preventing water immersion, so as to enable 24-hour strength of a grouting material to reach above 3.5 MPa which is matched with the compressive strength of a base layer to be grouted, ensure a concrete face to obtain uniform support of a bottom plate again, and prolong the service life of the concrete face.

The invention provides a piggery environment deodorant. The piggery environment deodorant is characterized by being prepared from the following raw materials in parts by weight: 15-20 parts of herba menthae extract, 2 parts of cryptolepine, 3 parts of maleic acid, 0.5-0.8 part of herba pogostemonis, 5 parts of sodium bicarbonate, 1-2 parts of essence, 2-2.5 parts of a fatty acid decomposer, 12-15 parts of lemon extract, 0.8-1.2 parts of polyethylene glycol, 1 part of potassium salt, 3 parts of a surfactant, 16-22 parts of a ferrous sulfate solution, 6-7 parts of gel and 60-80 parts of deionized water. According to the piggery environment deodorant provided by the invention, the raw material components are reasonably matched, sulfuretted hydrogen, dimethylamine, trimethylamine and the like in excrements, sweat and body fluid in a piggery can be effectively removed, toxic and harmful substances can be effectively decomposed, and the deodorization and sterilization effect is good. The deodorant is sprayed into the piggery, is not easily affected by the environment to generate dilution, can keep the deodorization and sterilization effect for a long time; at the same, the deodorant is safe, environmentally friendly, and does not generate harm on pigs in the piggery.

The invention discloses single slurry and a tunnel stabilizing method using the same. The single slurry comprises cement, sodium silicate, water and a modifier, wherein the weight ratio of the water to the cement to the sodium silicate to the modifier is (60-80):100:(5-20):(0.5-5), the cement is 42.5R ordinary Porland cement, and the baume degree of the sodium silicate is 35-52. A preparation method of the single slurry includes: evenly mixing and stirring the water and the cement to prepare cement slurry; adding the modifier, and evenly stirring; adding the sodium silicate, and evenly stirring. The tunnel stabilizing method includes: preparing the single slurry; arranging first grouting holes, and grouting; if tunnel settlement or lifting is not controlled effectively, entering the next step; arranging second grouting holes, and grouting; if tunnel settlement or lifting is not controlled effectively, entering the next step; performing secondary supplementary grouting. By the single slurry and the tunnel stabilizing method, the technical problems that fine sand layer cement slurry is hard in grouting and water-rich cement slurry is prone to loss are solved.

A diflucan eye drops for treating fungal injection of eye is prepared from diflucan and propanediol through mixing, grinding, adding the water for injection, dissolving benzalkonium chloride in water for injection, mixing and stirring.

The invention discloses a citrus plant cell sap concentration regulation and control girdling-free cultivation method. The method comprises the following steps of cultivating spring shoots as fruitingbranches and fruiting mother branches of the next year every year, applying water flush fertilizer to roots from January to February every year, applying root system repair fertilizer in a summer shoot period and within 10-20 days after blossom fall every year, and spraying Yuhuanling No.2 foliar fertilizer in a spring shoot period, so that flower promoting, flower strengthening and spring shootvegetative growth requirement reducing are achieved; in the summer shoot period, spraying Yuhuanling No.2 foliar fertilizer to supplement tree nutrition and reduce the summer shoot nutritional growthrequirement; spraying Yuhuanling No.2 foliar fertilizer in autumn shoot and winter shoot periods to promote flower bud differentiation in the next year and reduce the nutritional growth requirements of autumn shoots and winter shoots; trimming useless shoots of the grown spring shoots, grown summer shoots, the grown autumn shoots and the grown winter shoots. Through combination of the water flushfertilizer applied to the roots, the root system repair fertilizer and the foliar fertilizer sprayed to the leaf surfaces, the concentration of cell sap of plants is increased, flowering and fruit setting are facilitated, girdling is avoided, consumption of manpower and material resources is reduced, and losses caused by girdling are reduced.

The invention discloses a construction device and method for a shield tunnel.The construction device comprises a connecting ring plate, a steel sleeve, concrete pipe sheets arranged in the steel sleeve and a shield system.The connecting ring plate is pre-buried on a pit support structure.The shield system comprises a shield shell.The shield shell is arranged between the steel sleeve and the concrete pipe sheet.The end face of the steel sleeve and the connecting ring plate are fixedly connected.The space between the steel sleeve and the shield shell and the space between the shield shell and the concrete pipe sheets are both filled with clay shock for preventing water and oil loss.A plurality of grouting holes for injecting the clay shock are formed in the steel sleeve.According to the construction device and method, underground water and soil loss can be effectively sealed, the situation that soil disturbance is caused by water and soil loss, and consequently a shield originating accident is caused is avoided, and construction is convenient, safe and reliable.

The invention relates to ophthalmic gel of artificial musk and a preparation method thereof, in particular to ophthalmic gel. The ophthalmic gel contains artificial musk, a gel substrate agent, a surface active agent and water in effective dose for treatment. The invention also relates to an ophthalmic preparation which contains the ophthalmic gel disclosed by the invention and pharmaceutical excipient which is mixed with the ophthalmic gel before use and a preparation method of the ophthalmic gel. Discovered by the invention, the ophthalmic gel which is prepared by fully pulverizing artificial musk powder and contains a gel substrate and the surface active agent not only has favorable effect on treating eye diseases but also has less irritation on eyes.

The invention belongs to the technical field of diamond micropowder quality detection and particularly relates to a dispersing agent used for preparing samples for diamond micropowder morphology detection. The dispersing agent is a mixture of polyethylene glycol and glycerinum in volume ratio of 10:1. The dispersing agent in actual use has the advantages that the sample prepared are uniform in dispersion without agglomeration and clear in observation under a microscope, immobilization is achieved, and micropowder morphology detection is facilitated.

The present invention is one kind of eye drop containing zedoary oil and its preparation process. The eye drop consists of zedoary oil, solubilizer, absorption promoter, biological adhesive, isoosmotic regulator, bacteriostat and solvent. It has antiviral effect, antibiotic effect, antiphlogistic effect and effect of promoting body's immune reaction, so that it may be used to treat various kinds of viral keratitis. The present invention has high curative effect, simple preparation process and excellent application foreground, and the preparation process is suitable for industrial production.

The invention relates to the technical field of vehicles, in particular to a gas supply and heat preserving system of a liquefied gas vehicle. The system comprises a gas storage tank provided with a filling valve and a gas outlet valve, the gas outlet valve is connected to an engine through a material supply pipe, the gas storage tank is installed in a heating box, a coil pipe which abuts againstthe gas storage tank is arranged in the heating box, the input-output end of the coil pipe is connected to a cooling water system of the engine, the material supply pipe penetrates a hollow sleeve, the gaps between the sleeve and the material supply pipe are sealed, and a water inlet-outlet end is arranged on the sleeve and connected to the cooling water system of the engine. According to the system, civil liquefied gas is adopted as fuel, so that energy is saved, and the environment is protected; moreover, the gas storage tank and the material supply pipe are heated by means of engine coolingwater so that full gasification can be guaranteed, residues in the gas storage tank are avoided, the gas supply capability of the system is improved, and fuel supply of the engine is guaranteed; moreover, exhaust gas emission is clean, by accessing a heating system, gas which enters the engine is heated to about 80 DEG C, and the size of the gas expands 1.2 times.

The invention discloses a deep treatment type soil remediation device and method, and belongs to the technical field of soil remediation. The deep treatment type soil remediation device comprises a device main rod, an anti-skid base is fixedly mounted at the bottom of the device main rod, the outer wall of the device main rod is in threaded connection with an adjusting sleeve, a linkage rotating ring is movably installed on the outer wall of the adjusting sleeve, linkage blocks are fixedly connected to the two sides of the adjusting sleeve, two linkage grooves matched with the linkage blocks are formed in the inner wall of the linkage rotating ring, four rotating shafts which are annularly and evenly distributed are fixedly connected to the top of the linkage rotating ring, and linkage rods are rotatably connected to the outer walls of the rotating shafts. A deep treatment mode can be adopted to spray a soil remediation agent into deep soil, the remediation agent can make full contactwith the soil, and is not prone to losing and being diluted, the effect of the remediation agent can be brought into full play, and secondary pollution cannot be caused; and the device is convenient to use, the method is convenient to implement, the treatment efficiency is high, and labor is saved.