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215results about How to "Fast dispersion" patented technology

Gelling compositions and methods

A method for the administration of a composition that augments the acidity of gastric fluid such that intra-gastric gelation of the polysaccharide:acid soluble multivalent cation formulation is initiated independent of endogenous acid secretion. The composition includes:(a) at least one of a polysaccharide, modified polysaccharide, or polysaccharide salt, each capable of ionotropic gelation, (b) at least one source of multivalent cations capable of solubilization at an acidic pH, and (c) at least one acid component capable of providing a controlled release of protons sufficient to solubilize the multivalent cations. The composition is capable of hydrating in aqueous media and subsequently forming a gel in a stomach when ingested, which gel resists peristaltic forces and remains in the stomach for an extended time. Also disclosed are edible compositions including this composition, as well as methods of inducing a satiety effect and providing controlled release of various components employing the composition of the invention.
Owner:FMC BIOPOLYMER AS

Continuous flow, electrohydrodynamic micromixing apparatus and methods

The present invention relates to methods and apparatus that employ electrohydrodynamic flows in miscible, partially miscible and immiscible multiphase systems to induce mixing for dissolution and / or reaction processes. The apparatus and methods of the present invention allow micromixing of two or more components and can advantageously be used to conduct liquid-phase reactions uniformly and at high rates
Owner:LOCKHEED MARTIN ENERGY SYST INC

Methods and devices for dissolving hyperpolarised solid material for nmr analyses

The present invention relates to devices and method for dissolving solid polarised material while retaining a high level of polarisation. In an embodiment of the present invention a material is polarised in a strong magnetic field in a cryostat 2 and then brought into solution while still inside the cryostat 2.
Owner:OXFORD INSTR MOLECULAR BIOTOOLS

Inverse emulsion polymer thickener for fracturing fluid and preparation method thereof

ActiveCN103146372AAvoid harmMeet the fracturing constructionDrilling compositionPolymer sciencePersulfate
The invention relates to an inverse emulsion polymer thickener for a fracturing fluid and a preparation method thereof. The thickener is polymerized by water, 2-acrylamidyl-2-methyl sodium proparesulfonic acid liquid with mass fraction of 50%, alkyl acrylamide, acrylamide, a cationic monomer, N, N-methylene bisacrylamide, a tween-80 emulsifier, ethylene diamine tetraacetic acid disodium salt, 30% sodium hydroxide, white oil, acrylic ester, a span-80 emulsifier, sulfite, a peroxysulphate initiator, a water-soluble azo initiator and OP-15. According to the invention, raw materials are industrial products, and purification is not needed before reaction; polymerization is initiated by initiators by adding a complexing agent, and the preparation process is simple; the thickener provided by the invention is fast in dispersing, easy to prepare, free from pollution and harm, small in use level and good in stability, in particular resists high temperature of 220 DEG C, and is suitable for fracturing a high-temperature stratum; and the thickener is higher in shear resistance, can meet the fracturing construction of high flow, has high sand carrying performance, and is free from residue and is not harmful to the reservoir.
Owner:CHINA PETROLEUM & CHEM CORP +1

High-dispersibility isolated soybean protein and preparation method thereof

The invention discloses a high-dispersibility isolated soybean protein obtained by an enzymatic modification method and a preparation method thereof. The method comprises the following steps: taking low temperature bean pulp as a raw material, preparing isolated protein curd by alkali extraction, degasification and acid precipitation, and then enzymolyzing the isolated protein curd with neutral proteinase, alpha-moderate temperature amylase and alpha-high temperature amylase, and heating to inactivate enzyme, sterilizing, flash vaporizing, homogenizing, and spray drying after the reaction to obtain the soybean protein with low bitterness, high dispersibility, poor gelatination capacity and good suspension stability. The isolated soybean protein can be applied as a protein additive to milk powder, milk beverage, yoghurt, soy milk, ice cream, nutrition food, athletic food and health products.
Owner:黑龙江省哈高科营养食品有限公司

Inverse emulsion polymer drag reducer, and preparation method and application thereof

The invention provides an inverse emulsion polymer drag reducer, and a preparation method and an application thereof. The method comprises the following steps: adding an aqueous-phase material into an oil-phase material, and carrying out emulsifying so as to obtain a monomer emulsion, wherein the aqueous-phase material comprises 130 to 165 parts by mass of water, 6 to 36 parts by mass of acrylic acid, 24 to 77 parts by mass of 2-acrylamido-2-methyl propane sulfonic acid, 32 to 82 parts by mass of an organic amide monomer and 0.5 to 0.9 part by mass of a hydrophilic emulsifier, and the oil-phase material comprises 104 to 120 parts by mass of base oil with a specific viscosity and 4 to 8 parts by mass of a lipophilic emulsifier; and mixing the monomer emulsion with an initiator at 20 DEG C to 30 DEG C, then carrying out standing, and carrying out a polymerization reaction under the condition of 50 DEG C to 55 DEG C for 1 h to 2 h so as to obtain the inverse emulsion polymer drag reducer. The inverse emulsion polymer drag reducer prepared by using the method provided by the invention has high drag reducing rate and low cost under the condition of small addition amount.
Owner:中石化石油工程技术服务有限公司 +1

Solid type pigment composition and preparation method thereof

The present invention relates to a solid type pigment composition and a preparation method thereof. The solid type pigment composition is characterized by comprising the following components in parts by weight: 55 parts to 90 parts of a water-soluble aluminum pigment; 5 parts to 40 parts of a dispersant and 1 part to 10 parts of a splitting agent; wherein the splitting agent is selected from at least one of carboxymethyl cellulose, starch glycolate, a crosslinking carboxymethyl salt, polyvinylpyrrolidine, cross-linked polyvinylpyrrolidone and alginic acid salt. The solid type pigment composition is more environmentally friendly and instantly-dissolving.
Owner:深圳市绚图新材科技有限公司

Zhongshengmycin wettable powder and preparation method thereof

The invention discloses mesophilous bacterial chlorin water dispersion granule agent in disinfectant, and belongs to the disinfectant technology in the plant protection field. The invention comprises the components that the raw material medicine mesophilous bacterial chlorin occupies 100 to 600 shares, auxiliary agent occupies 180 to 360 shares, carrier packing material occupies 250 to 600 shares, and binding agent occupies 10 to 150 shares. The ingredients are mixed proportionally, after being evenly mixed, the mixture is crushed to obtain the target powder, the target powder and the binding agent are evenly mixed, and the mesophilous bacterial chlorin water dispersion granule can be obtained through granulation, drying and screening. The invention overcomes the disadvantage of the wettable powder of the mesophilous bacterial chlorin, both the us-cost of the farmer and the environment pollution are reduced. The invention has the advantages that the content is high, the disintegration is quick, the dispersivity is good, the invention is advantageous for storage and transportation and the stability is good, the activeness is high, the efficiency is good, and the invention is secure.
Owner:SHAANXI MEIBANG PHARMA GRP CO LTD

Flame-retardant glass fiber-reinforced HIPS/PPO material with high CTI value and high GWIT value

The invention discloses a flame-retardant glass fiber-reinforced HIPS / PPO material with a high CTI value and a high GWIT value. The alloy material comprises the following components by weight: 23 to 41% of HIPS, 22 to 41% of PPO, 6 to 15% of a compound fire retardant, 3 to 10% of antimonony oxide, 20 to 30% of a glass fiber, 2 to 9% of a toughening agent, 0.1 to 1% of an anti-oxidant and 0.1 to 1% of an oxide. A preparation method for the material comprises the following steps: weighing the components in proportion, adding the weighed components into a high-speed mixer for mixing for 2 to 5 min, then carrying out discharging and finally carrying out extrusion granulation in a twin-screw extruder, wherein processing temperature is 220 to 240 DEG C and screw revolution is 30 to 40 Hz. The material provided by the invention has the advantages of a high CTI value, a high GWIT value, environment-friendliness and balanced comprehensive properties and can be used for low-voltage electronic capacitor shells, load break switches, carbon brush supports and molded case circuit breakers.
Owner:SHANGHAI SUNNY

Method of modifying Xinjiang saline-alkaline soil

The invention discloses a method of modifying Xinjiang saline-alkaline soil, comprising the steps of S1, adding coal cinder in water 2-5 times as heavy as the coal cinder for soaking, screening to obtain large-particle coal cinder, medium-particle coal cinder and small-particle coal cinder, as well as the rest of fly ash; S2, deeply plowing the soil to 25-40 cm, and spreading the small-particle coal residue to the surface of the soil not plowed out; S3, mixing well the plowed soil with desulfurization gypsum, biochar and a water-holding agent to obtain modified soil; S4, mixing part by volume of the modified soil with the medium-particle coal cinder and the fly ash to obtain medium soil; S4, mixing the rest of the modified soil with the large-particle coal cinder and the fly ash to obtain top soil. The wastes, coal cinder and desulfurization gypsum, are reused to modify saline-alkaline soil, and the modifying cost is effectively lowered for the saline-alkaline soil; by the aid of the biochar and the water-holding agent, formation of soil aggregate structure is accelerated, microbial ambient of the oil is improved, and saline-alkaline soil can be improved faster.
Owner:朱拥军

Amorphous Venetoclax and pharmaceutic adjuvant solid dispersoid and preparation method thereof

The invention relates to an amorphous Venetoclax and pharmaceutic adjuvant solid dispersoid and a preparation method thereof. The amorphous Venetoclax and pharmaceutic adjuvant solid dispersoid is prepared from Venetoclax and pharmaceutic adjuvants according to the weight ratio of 1:(0.1 to 100), wherein the Venetoclax is in an amorphous state; and in the X-ray powder diffraction spectrum of the solid dispersoid, no Venetoclax crystal feature peaks exist after the background peaks of the pharmaceutic adjuvants are eliminated. The Venetoclax and pharmaceutic adjuvant solid dispersoid provided by the invention has the advantages that the stability and the dispersibility are good; the dissolution rate of the Venetoclax is increased; the improvement of the bioavailability on the medicine preparation and the adsorption of the body on the medicine can be facilitated; and under the acceleration test conditions, high physical stability and chemical stability can be maintained. The preparationmethod of the amorphous Venetoclax and pharmaceutic adjuvant solid dispersoid has the advantages that the operation is simple; the cost is low; the reproducibility is high; the realization is easy; and the method is suitable for industrial production.
Owner:CHANGZHOU AINUOXINRUI PHARMA LTD

Three-in-one multifunctional premixed liquid feed and preparation method thereof

The invention relates to a three-in-one multifunctional premixed liquid feed and a preparation method thereof. The feed is a stable liquid premixed feed which is prepared by organically matching three main functional components such as vitamins, amino acid and linoleic acid by utilizing an emulsifier and an auxiliary emulsifier. In the feed and the preparation method, fat- soluble vitamins and the linoleic acid can be dispersed effectively by mixing surfactants Tween 80, Tween 80 and the auxiliary emulsifier, and simultaneously alkaline amino acid solution also contributes to pre-dispersing vitamin B2; and uniform, stable and clarified three-in-one premixed liquid is obtained by mutual fusion.
Owner:GREAT BIOLOGY PHARMA TIANJIN

Method for preparing and using collecting agent for gold, silver and platinum family elements

The invention discloses a method for preparing collecting agent for gold, silver and platinum family elements. The collecting agent can be obtained by adding alkanol in a black powder solution of allylic alkyl sulfur ammonia ester and fully stirring at room temperature to be transparent. The invention also provides a use method of the collecting agent, comprising the following steps of: grinding ore to a proper fineness to ensure that the mass fraction of solids in ore pulp is 20-50 percent; then adding lime or sulfuric acid and adjusting the pH value of the ore pulp to be 8.0-11.0; and finally adding 4-30g / t foaming agent and 2-100g / t collecting agent and foaming the gold, silver and platinum family elements according to the conventional method. The collecting agent has the advantages of favorable selectivity, high collection performance and moderate foaming viscosity and greatly improves the grade and the recovery rate of gold, silver, platinum / palladium metals.
Owner:北京天任瑞创科技发展有限公司

Preparation method for near-infrared light switch fluorescent polymer nanoparticle, and application thereof

The invention discloses a preparation method for a near-infrared light switch fluorescent polymer nanoparticle, and application thereof. A FRET (Fluorescence Resonance Energy Transfer) principle is used, MMA (Methyl MethAcrylate) is taken as a polymerizable monomer, polymerizable near infrared fluorescent dye (TEGTPPDI-Aly) is taken as an energy donor, a polymerizable photochromic compound (STPMA) is taken as an energy receptor, hexadecane (HD) is taken as a hydrophobic substance, CTAC (Cetyltrimethylammonium Chloride) is taken as surfactant, and a one-step simple miniemulsion polymerization method is adopted to prepare the near-infrared light switch fluorescent polymer nanoparticle. The near-infrared light switch fluorescent polymer nanoparticle prepared with the predation method has the advantages of near-infrared light switch ability, low cytotoxicity, good water dispersibility, low input cost, simple synthetic route and the like, is suitable for amplification synthesis and practical production and application, and has a huge application prospect in technical field including super-resolution imaging, life science and the like.
Owner:HUNAN UNIV OF SCI & TECH

Filtrate loss reducer for drilling fluid and preparation method thereof

The invention provides a filtrate loss reducer for a drilling fluid and a preparation method thereof. The filtrate loss reducer is an inverse emulsion polymer prepared from a water phase and an oil phase through emulsification. The water phase comprises, by weight, 45-56 parts of a sulfonic monomer, 25-38 parts of an amide group monomer, 5-10 parts of a rigid structure monomer and 100-120 parts of water. The water phase also comprises a cross-linking agent and an initiator, a mass ratio of the cross-linking agent to the sulfonic monomer, the amide group monomer and the rigid structure monomer is 0.008-0.015%, and a mass ratio of the initiator to the sulfonic monomer, the amide group monomer and the rigid structure monomer is 0.05-0.15%. The oil phase comprises 80-110 parts by weight of base oil and 4-10% by mass of an emulsifier. The preparation method has simple processes, a fast dissolution rate and excellent filtrate loss reduction performances.
Owner:TIANJIN BO XING ENG SCI & TECH LIMITED COMPANY OF CNPC +1

Composition for solid plasticized high-flame-retardant PVC sheath material and preparation method of composition

The invention relates to a composition for a solid plasticized high-flame-retardant PVC (polyvinyl chloride) sheath material and a preparation method of the composition, and belongs to the technical field of cable materials. According to the composition and the preparation method, an Am-168 solid plasticizer and sodium antimonide flame retardant are introduced into the high-flame-retardant PVC cable sheath material; the traditional fire retardant damages other properties of the material while achieving the flame-retardant purpose; however, sodium antimonide does not affect body properties of the material while achieving the flame-retardant modification purpose due to a structure and constituent characteristics of sodium antimonide; the compatibility and adhesive strength with plastic are improved greatly; the dispersity is good; a loading level can be raised; the impregnating property is good; the mixing time is short; uniform flowing is realized in a mold; and forming is good. Mechanical properties of the material are improved, and the composite high-flame-retardant cable sheath material prepared by the composition for the composite high-flame-retardant cable sheath material has good mechanical properties and flame resistance.
Owner:JIANGSU BAOYUAN GAOXIN ELECTRIC

Fiber composite hydraulic fracturing fluid for shale volume fracturing

The invention relates to a fiber composite hydraulic fracturing fluid for shale volume fracturing. The hydraulic fracturing fluid comprises the following components in percentage by weight: 0.1% of drag reducer, 1% of antiswelling agent, 1% of long-acting clay stabilizer, 0.06% of compound bactericide, 0.005% of scale inhibitor, 0.3% of surfactant and the balance of water. The fiber is nano SiO2 composite fiber with favorable thermodynamic and chemical stability, and the fiber concentration (fiber / proppant mass ratio) is 0.5-1%. The hydraulic fracturing fluid system has the advantages of complete formula, low friction resistance, favorable antiswelling and clay stabilization effects, favorable sterilizing and antibacterial effects, favorable antiscale performance, favorable discharge aiding effect and low surface / interfacial tension, and can effectively protect the shale reservoir. The added fiber obviously enhances the sand suspension property of the hydraulic fracturing fluid, effectively lowers the string friction resistance of the hydraulic fracturing fluid, can prevent the proppant from back flow, and is especially suitable for volume fracturing development of the shale reservoir.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Sealing strip cladding sizing material and preparation method thereof as well as car door sealing strip and preparation method thereof

The invention provides a sealing strip cladding sizing material and a preparation method thereof as well as a car door sealing strip and a preparation method thereof. The sealing strip cladding sizingmaterial of the invention is prepared from the following components: EPDM (Ethylene-Propylene-Diene Monomer) 3092M, EPDM 4045M, EPDM PX-049, zinc oxide, stearic acid, PEG-4000, a dispersing agent, tackifying resin, paraffin oil R-2291, carbon black N550, sulfur S-80, a moisture absorbent GR, an accelerant M-75, an accelerant DM-75, an accelerant TRA-70, an accelerant TMTD-75, an accelerant BZ-75,an accelerant ETU-80, and a microsphere foaming agent EWE-60GE. The sealing strip cladding sizing material of the invention can implement the light-weight design of a sealing strip product, also hasrelatively good physical properties such as processability and surface quality, and can improve the quality of a sealing strip utilizing the sealing strip cladding sizing material.
Owner:NUOBO RUBBER PRODION

Lithium iron phosphate cathode slurry of lithium ion battery, preparation method of lithium iron phosphate cathode slurry and cathode pole piece

The invention discloses lithium iron phosphate cathode slurry of a lithium ion battery, a preparation method of the lithium iron phosphate cathode slurry and a cathode pole piece, and belongs to the field of lithium ion batteries. The positive electrode slurry comprises 93-97 parts of a lithium iron phosphate positive electrode active substance, 2-5 parts of a binder and 1-3 parts of a conductiveagent, wherein the specific surface area of the lithium iron phosphate positive electrode active substance is 6-12 m<2> / g, and the binder contains an acrylate multipolymer with a substitution degree of 0.73-3.0. The preparation method comprises the following steps: fully mixing a conductive agent and a binder with the same mass to form a conductive glue solution with the pH value of 8-11, then adding the lithium iron phosphate positive electrode active substance and the binder, performing full stirring and dispersing in the conductive glue solution, and finally defoaming and adjusting the viscosity to obtain the lithium iron phosphate positive electrode slurry of the lithium ion battery. Components in the positive electrode slurry are uniformly dispersed, sedimentation is avoided, and theuse standard of an electrode is met.
Owner:蜂巢能源科技(马鞍山)有限公司

Production method of antibacterial coating, antibacterial coating and ventilated antibacterial film containing antibacterial coating

The invention provides a production method of an antibacterial coating, the antibacterial coating and a ventilated antibacterial film containing the antibacterial coating. The production method comprises the following steps: S1: weighing materials in a raw material formula in parts by weight; S2: adding cyclomethyl methacrylate, butyl acrylate, nano TiO, methacrylic acid hydroxylpropyl sulfonic acid, acrylic resin, polyoxyethylene ether, an emulsifying agent, de-ionized water, a pH regulator and a film-forming addition agent into a mixer and pre-stirring, wherein the stirring speed is 3000rpm / min to 6000rpm / min and the stirring time is 0.1h to 0.2h; S3: fusing and extruding the mixed raw materials obtained by the step S2 through an extruder, tabletting and crushing through a tabletting machine, micro-crushing by a crusher and screening in a rotary manner in sequence to finally obtain antibacterial coating powder. The production method of the antibacterial coating, provided by the invention, is finished through three steps; the production process method is simple and the production method is simple; the production time is short and the production efficiency is greatly improved.
Owner:江苏科德宝建筑节能科技有限公司

Method for improving instant capacity of soymilk powder

The invention discloses a method for improving instant capacity of soymilk powder, belonging to the technical field of food or cosmetics. Common soybeans or peeled soybeans are taken as a raw material, and on the basis of a wet method pulping technology, the instant capacity of the soymilk powder can be improved by using the technologies of regulating ionic strength, surface modification of prion, powder preparation by spray drying, and dry mixing of inorganic salts. The invention has the obvious advantages that hydrophilic structure substances and charge distribution on the surface of soymilk prion are modified by adding salts to be matched with emulsifier under the liquid state and dry powder conditions during the soymilk heat treatment process, thus retaining the good hydrophilic structure of the soymilk protein and improving the dispersibility and solubility of the soymilk powder effectively, wherein the dispersing speed is obviously improved by about 30%, and the wetting time is shortened by about 20min; and the invention improves the instant capacity of the soymilk powder to a certain extent and solves the problem that soymilk powder is difficult to dissolve in uniform emulsion in the current soybean processing industry.
Owner:CHINA AGRI UNIV

High-efficient low-wearing coating dispersing machine

The invention discloses a high-efficient low-wearing coating dispersing machine, which comprises a bracket, a dispersing bucket, a top plate and a stirring mechanism fixed on the top plate; the stirring mechanism comprises a first motor and a stirring shaft, and a lifting mechanism is further fixed on the top plate; the lifting mechanism comprises a hydraulic cylinder fixed on the top plate and acontroller for controlling the hydraulic cylinder to move; the hydraulic cylinder and the controller are fixed on the bracket; the tail end of the stirring shaft is provided with a pressure sensor, and the pressure sensor is electrically linked with the controller; the bottom part of the dispersing bucket is provided with a rotating mechanism. Through rotating the dispersing bucket and matching with the stirring mechanism, the dispersing efficiency is improved; meanwhile, a ball bead drives the dispersing bucket to rotate, thus the loss of the dispersing bucket is also reduced.
Owner:百世杉集团有限公司

Composition of amorphous vortioxetine or amorphous vortioxetine salt and pharmaceutical adjuvants, and preparation method thereof

The invention relates to a composition of vortioxetine or pharmaceutically acceptable vortioxetine salt and pharmaceutical adjuvants, and a preparation method thereof. The composition includes vortioxetine or pharmaceutically acceptable vortioxetine salt and two or more pharmaceutical adjuvants, and a weight ratio of the vortioxetine or pharmaceutically acceptable vortioxetine salt to all the pharmaceutical adjuvants is 1:(0.1-100), wherein the vortioxetine or pharmaceutically acceptable vortioxetine salt in the composition has an amorphous form, and no characteristic peak of the vortioxetine or pharmaceutically acceptable vortioxetine salt exists in an X-ray powder diffraction spectrum of the composition, subtracting the background peaks of the pharmaceutical adjuvants. The composition of vortioxetine or pharmaceutically acceptable vortioxetine salt and pharmaceutical adjuvants has good stability and dispersibility, increases the dissolvability of the vortioxetine or pharmaceutically acceptable vortioxetine salt, is in favor of improving the bioavailability of a medicinal preparation and the medicine absorption of bodies, and keeps good physical stability and chemical stability under accelerated test conditions. The preparation method of the amorphous composition has the advantages of simplicity in operation, low cost, good reappearance, easiness in realization, and suitableness for industrial production.
Owner:CHANGZHOU FANGNAN MEDICINE TECH CO LTD

Defoaming agent composition as well as preparation method and application thereof

The invention relates to the technical field of fine chemical engineering, and particularly provides a defoaming agent composition which is prepared from raw materials including linear silicon paste,3D reticular structure silicon paste, polyether modified silicone oil, a surfactant, polyether, water and auxiliaries. According to the defoaming agent composition disclosed by the invention, polysiloxane and a polyether system are compounded, so that the excellent performance of the polysiloxane is reserved, the excellent performance of the polyether is introduced, and therefore, the acid and alkali resistance, shearing resistance, high temperature resistance and the like of the defoaming agent are improved, and the dispersion speed of the defoaming agent in an aqueous solution is increased.
Owner:ZHEJIANG XINAN CHEM INDAL GROUP

Method for unloading aluminum oxide from prebaking aluminum electrolysis cell

The invention discloses a method for unloading aluminum oxide from a prebaking aluminum electrolysis cell. According to the method, the crust breaking and the unloading of the prebaking aluminum electrolysis cell are simultaneously carried out, aluminum oxide is intermittently remained at least twice in a discharging pipe after entering into an unloading pipe from a fixed container, the intermittent remaining efficiency is accordant with the crust breaking frequency, and the crust breaking is carried out before each time of remaining of aluminum oxide. Aluminum oxide is subjected to segmentation remaining in the unloading pipe and is preheated by virtue of the high temperature of the aluminum electrolysis cell, so that the situation that aluminum oxide newly added into the electrolysis cell is agglomerated with electrolyte into blocks is effectively avoided, the dissolution and dispersion of aluminum oxide are accelerated, precipitates are unlikely to form at the bottom of a furnace, and the efficient and steady working of the electrolysis cell is promoted.
Owner:CENT SOUTH UNIV +2

Collision atomization stream-extrusion combustion system of internal-combustion engine

The invention discloses a collision atomization stream-extrusion combustion system of an internal-combustion engine, which belongs to the field of formation and combustion of gas mixtures of engines. The system comprises a combustion chamber (4) which consists of a cylinder cover (1), a cylinder sleeve (2) and a piston (3) and an oil injection nozzle (5) serving as a multi-hole oil nozzle, wherein a bump (8) is arranged in the center of the piston (3) and is formed by a folding fan surface which uses a convex top (9) as a center and is continuously and radially distributed. A one-time oil bundle is diffused through a collision part along a collision surface and cannot be accumulated on a drop point, and mist spray has a high diffusion speed and a large distributed spatial range and is not close to the wall of the combustion chamber, so that the involved quantity of air is increased; secondary atomization is realized, so that the grain size of the mist spray is thinned, and the mist spray is more uniformly distributed under the action of extrusion flow; therefore, a relatively uniform gas mixture can be relatively quickly formed; and the quality of a combustible gas mixture of the engine is effectively improved, so that combustion is quick and complete.
Owner:JIANGSU UNIV

Spraying guidance system of internal combustion engine

A spray guide system of IC engine features that a spray guide step is made on the inner surface of omega-type combustion chamber. When the pistor is raising up in the primary spray phase, the oil beam is sprayed onto said guide step, which can reflect part of the oil beam and quickly disperse the rest along its guide arc, so realizing secondary atomizing.
Owner:DALIAN UNIV OF TECH

Solid dispersoid of selexipag and pharmaceutic adjuvant and preparation method of solid dispersoid

The invention discloses amorphous selexipag, which is characterized in that the characteristic peak of the selexipag does not exist in an X-ray powder diffraction spectrum. The invention discloses a preparation method of the amorphous selexipag, a solid dispersoid of the amorphous selexipag and a pharmaceutic adjuvant and a preparation method of the solid dispersoid. The solid dispersoid is prepared from the selexipag and the pharmaceutic adjuvant; the weight ratio of the selexipag to the pharmaceutic adjuvant is 1 to (0.1 to 100), wherein the selexipag is in an amorphous state; the X-ray powder diffraction spectrum of the solid dispersoid has no characteristic peak of a crystal of the selexipag after the background peak of the pharmaceutic adjuvant is deducted. The solid dispersoid of the selexipag and the pharmaceutic adjuvant, which is provided by the invention, is favorable in stability and dispersity, is used for increasing the dissolution rate of the selexipag, is used for more beneficially improving the bioavailability of a medicinal preparation and the absorption of an organism to a medicine, and in an accelerated test condition, can be used for maintaining favorable physical stability and chemical stability. The preparation method of the amorphous solid dispersoid, which is provided by the invention, is simple to operate, low in cost, good in repeatability and easy to realize, and is suitable for industrialized production.
Owner:CHANGZHOU FANGNAN MEDICINE TECH CO LTD

Flame-retardant glass fiber-reinforced HDPE/PA66 alloy material with high CTI value and high GWIT value

The invention discloses a flame-retardant glass fiber-reinforced HDPE / PA66 alloy material with a high CTI value and a high GWIT value. The alloy material comprises the following components: by weight, 23 to 41% of HDPE, 22 to 41% of PA66, 6 to 20% of a compound fire retardant, 3 to 15% of antimonony oxide, 20 to 30% of a glass fiber, 2 to 10% of a compatilizer, 0.1 to 1% of an anti-oxidant and 0.1 to 1% of an oxide. The invention also relates to a preparation method for the alloy material, and the method comprises the following steps: weighing the components in proportion, adding the weighed components into a high-speed mixer for mixing for 2 to 5 min, then carrying out discharging and finally carrying out extrusion granulation in a twin-screw extruder, wherein processing temperature is 220 to 240 DEG C and screw revolution is 30 to 40 Hz. Compared with the prior art, the alloy material provided by the invention has the advantages of a high CTI value, low precipitation performance, etc.
Owner:SHANGHAI SUNNY
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