42results about How to "No change in physical and chemical properties" patented technology

The invention discloses micro-emulsion composition containing isoliquiritigenin which comprises isoliquiritigenin, emulsifying agent, assistant for emulsifying agent, oil and water. By using the composition, the solubility of the isoliquiritigenin can be greatly improved.

The invention discloses a coupling bionic structure for improving erosion resistance of mechanical moving part surface and relates to a coupling bionic structure of which the erosion resistance of the part surface is designed based on the characteristics of the back of a desert scorpion. The coupling bionic structure consists of an inner layer and an outer layer, wherein the outer layer is a hard material layer, the inner layer is a flexible material layer, the hardness of a material of the outer layer is higher than that of the material of the inner layer, the inner layer and the outer layer are closely combined together, the outer layer has the surface morphology of parallel grooves, convex hulls are regularly distributed on ridges of the grooves, and the thickness ratio of the outer layer to the inner layer is 1-2. Compared with a smooth surface, the erosion wear rate of the coupling bionic structure is increased by 6.0%-32.8%.

The invention discloses a bionic anti-sticking high-frequency electrotome bit, and belongs to the technical field of energy-carrying minimally invasive medical instruments. The bionic anti-sticking high-frequency electrotome bit takes a plant leaf with anti-sticking and desorption functions as a prototype, a bionic surface form with round grooves and strip-shaped grooves distributed in a compound mode is machined in the surface of a high-frequency electric-conduction blade by simulating the surface form of the plant leaf, the round grooves and the strip-shaped grooves are distributed in the length direction of the blade alternatively, and the interval between the two types of forms is equal to the radius of the circle; the round grooves and the strip-shaped grooves are respectively distributed in the width direction of the blade at equal intervals, and the center distance is 460-700 micrometers; the diameter of each round groove is equal to the width of each strip-shaped groove and is 180-300 micrometers; the length of each strip-shaped groove is 800-1400 micrometers; the depth of each round groove and the depth of each strip-shaped groove are the same and are both 60-100 micrometers. The bionic anti-sticking high-frequency electrotome bit effectively reduces the carbonization and sticking phenomena of the tissue when the electrotome works at a high temperature, and is favorable for heat radiation, and the minimum sticking quality is reduced by about 39% compared with a smooth electrotome bit.

The invention relates to ceramic filter materials and particularly relates to an attapulgite ceramic filter material for water treatment. The specific surface area of attapulgite is increased by adding an agglomerant and an adhesive and calcinating, so that the attapulgite is high in adsorption capability and is increasingly taken seriously in waste water treatment and the modified attapulgite has wide uses in waste water treatment. The attapulgite is a water-containing magnesium-rich aluminosilicate clay mineral having a layered chain structure. By addition of the agglomerant and the adhesive and calcination, attapulgite crystals are hairy or fibrous, are rod-like or needle like under an electron microscope, are white, grey, light green or light brown, and are fibrous under an atomic force microscope. The inside of the attapulgite is provided with a plurality of porous channels and the cross section of the porous channels is about 0.38 nm*0.63 nm. The attapulgite ceramic filter material is particularly suitable for water treatment.

The invention relates to a water absorbing material and especially relates to a water heavy metal ion attapulgite adsorbent. According to the invention, after the attapulgite clay is acidized, the attapulgite clay is roasted, so that an attapulgite absorbing material is formed. The roasting curing forming temperature of the attapulgite absorbing material is controlled within 550 DEG C, so that the crystal habit of the attapulgite is undamaged and the physical and chemical properties of the attapulgite are not changed. The attapulgite is a low-cost easily obtained inorganic mineral material and belongs to a hydrous layer-ribbon magnesium silicate mineral. The attapulgite crystal is in a hairy or fiber form, has a shape of long column or needle under an electron microscope, is in white, grey, light green or sandy beige color and is in the fiber form under an atomic force microscope; a plurality of ducts are arranged in the attapulgite; the cross sections of the ducts are about 0.38nm*0.63nm; the specific surface area of the attapulgite is larger; the attapulgite has higher absorbing capacity and is more and more important to wastewater treatment; the modified attapulgite has wider application in wastewater treatment.

The invention belongs to the field of film preparation and modification technologies, and in particular provides a polysulfone porous film in response to temperature and acidity, a preparation method and an application of the polysulfone porous film. With the principle of click chemistry, environmental response polymer of an alkynyl terminal is chemically grafted to the surface of a polysulfone film by reaction between aklyne and nitrine to obtain the polysulfone film of which the surface is grafted with the environmental response polymer chain, and therefore the purpose of modifying the environment response of the polysulfone is realized. The pores of the polysulfone porous film in response to temperature and acidity prepared by the method can change with the changes of pH and temperature, and have reversibility; and furthermore, the physical and chemical properties of the film substrate are not changed basically.

The invention relates to the technical field of plastic products and in particular to a degradable classification garbage bag and a preparation method thereof. The degradable classification garbage bag is prepared from the following raw material in parts by weight: a garbage bag with a two-dimensional code on the surface. The garbage bag is characterized by consisting of the following components in parts by weight: 50-75 parts of a modified starch, 8-20 parts of a plastic resin, 1-2 parts of a thermal stabilizer, 2-8 parts of a biologically degradable additive, 2-4 parts of a coupling agent, 3-6 parts of a pigment, 0.5-1.5 parts of a toughening agent, 1-2 parts of a filling agent, 0.2-0.4 part of an anti-electrostatic agent and 0.4-0.8 part of a wearing resistant agent. The garbage bag provided by the invention can be completely degraded, is free of pollution to the environment, easy in raw material obtaining and low in cost; meanwhile, the garbage bag has a garbage classification function, through the two-dimensional code on the garbage bag, garbage discarded by users can be tracked, good garbage classification habits can be promoted for the users, the cost of garbage classification treatment can be reduced, and good application prospects can be achieved.

This invention discloses a method for increasing the volume density of perfluoroethylene-perfluoropropylene copolymer resin powder. The method can adjust the particle sizes of perfluoroethylene-perfluoropropylene copolymer resin powder by adding volatile organic solvent into aqueous medium at 60-115 deg.C under high-speed stirring, thus realizing the increase of the volume density of perfluoroethylene-perfluoropropylene copolymer resin powder.

The invention discloses a microemulsion composition containing tilianin. The microemulsion composition comprises tilianin, an emulsifier, a co-emulsifier, oil and water. The microemulsion composition can greatly enhance the solubility of the tlianin.

The invention provides a purification method for recycling culture wastewater. Culture seawater is discharged into a water collecting well, is preliminarily purified, is discharged into an ionizationtank, is ionized to accelerate the decomposition of organic matters, and then is discharged into a filter tank, a magnetic composite flocculant is added to settle suspended pollutants in the wastewater, composite sponge iron is added to perform adsorption and chemical degradation, the obtained wastewater is filtered again through a pebble filter layer, and is discharged after being detected and reaching standards, and if the obtained water does not reach the standards, the obtained water is discharged into the water collecting well again, and undergoes above steps. Magnetic nanoparticles and an immobilized compound enzyme are connected through a silane coupling agent, so that the prepared composite flocculant is magnetic, can be easily magnetically separated, avoids complex steps such as filtration and centrifuging after a settling reaction, and simplifies the operation.

The invention relates to a method and system for manufacturing microscopic speckle in a digital image correlation method by using a femtosecond laser, and belongs to the technical field of micro-deformation measurement. The microscopic speckle is etched on the surface of a sample to be manufactured by using a femtosecond laser; the etched microscopic speckle moves along with deformation of the sample to be manufactured, and can serve as an information carrier for digital image correlation measurement, so that the displacement, strain and other information of the sample to be manufactured under the load can be measured. The etched microscopic speckle can reach the micron scale and is suitable for measuring microdeformation, the etching depth does not exceed 2 microns, the influence on the performance of the to-be-manufactured sample is small, the microscopic speckle can not loss effect under high-temperature, the method is suitable for most materials such as metal materials, ceramic materials, organic materials, composite materials and the like, the etching process is automatically controlled, and the efficiency is high.

The invention relates to the technical field of metallurgy, and discloses an isolating plate structure for continuous casting of molten steel. The solating plate structure comprises a crystallizer, and an isolating plate is horizontally placed in the crystallizer; the isolating plate is not corroded by casting powder, and does not react with effective components in the molten steel; and the density of the isolating plate is higher than the density of liquid casting powder and lower than the density of the molten steel. The isolating plate is installed in the crystallizer through a plurality ofmounting brackets, the size of the isolating plate is smaller than the cross-section size of the crystallizer, and a clearance is reserved between the isolating plate and the wall of the crystallizer. According to the isolating plate structure for continuous casting of the molten steel, the reacting weight of strong reduction elements in the molten steel and casting powder is greatly reduced, andit is ensured that the the effect of the casting powder is achieved properly; the defects of slag entrapment and slag inclusion, and bleed-out accidents are reduced, and a crystallizer molten steel flow field and a temperature field are homogenized; and the casting blank quality is further improved.

Belonging to the technical field of hollow capsule preparation, the invention discloses a method for preparation of a hollow capsule by compounding cactus polysaccharide with curdlan. The method consists of: mashing and homogenizing cactus, then adding an ethanol solution to conduct microwave extraction, subjecting the extracted solution to enzymolysis, then conducting dialysis concentration and alcohol precipitation to obtain cactus polysaccharide, then mixing curdlan with cold water, and performing water bath stirring to obtain a curdlan solution, mixing the curdlan solution with the cactus polysaccharide, then adding polyethylene glycol, glacial acetic acid, water and the like to perform mixing so as to obtain a hollow capsule solution, pouring the solution into a capsule tank to conduct molding, drying, cutting and nesting, thus obtaining the hollow capsule. The method provided by the invention has simple preparation steps, makes full use of cactus polysaccharide to compound with curdlan to prepare the hollow capsule, has strong pertinence, and effectively solves the problems of long disintegration time limit, easy embrittlement at low temperature, physical and chemical property degradation at a temperature above 30DEG C, and low bioavailability in hollow capsules.

The invention belongs to the field of boiler combustion testing devices, in particular to a water-cooling sampling device and method for sampling high-temperature flue gas in a hearth during the combustion process of a boiler. The sampling device is characterized by comprising detachable multi-stage water-cooling sampling tubes, wherein the different water-cooling components are connected through threads; a red copper gasket is arranged between every two adjacent water-cooling components for sealing. The sampling device is supported by high-temperature resistant metallic supports, thereby being sufficient in rigidity. During a sampling process, sampling of flue gas at different positions of the high-temperature hearth can be realized by assembling different numbers of sampling components.

The invention discloses a thermosetting water streak coating, which includes 15-20 portion of epoxy resin, 15-20 portion of polyester resin, 5-10 portion of barium sulfate, 2-4 portion of light calcium carbonate, and 0.3-0.5 portion of water streak agent. Compared with the prior art, the invention completely forms coating without any loss, and decrease the pollution to environment. The required thickness just needs one time spaying, and the coating has good mechanical property, good pressure resistance and wear resistance, which is widely used for steel door and window, metal surface decoration of appliances, and provide good protection for metal substrate.

The invention discloses a non-invasive remote substance detection device based on ground and ball field nuclear magnetic resonance, which is based on a nuclear magnetic resonance technology principle, that is, by utilizing Zeeman energy level splitting and Larmor precession of a substance magnetic atomic nucleus induced by an earth magnetic field, a detection area is irradiated by extremely-low-frequency electromagnetic excitation pulses; a specific magnetic atomic nucleus absorbs photon energy carried by a specific radio frequency and jumps from a low energy level to a high energy level to generate a nuclear magnetic resonance signal; and a nuclear magnetic resonance signal is detected and sensed by virtue of a signal receiving device, so that qualitative and spatial positioning of a detected target substance is realized. The device has a clear scientific basis and a clear technical implementation approach, is not restricted by the type and physical form of a detected substance in the detection process, and does not change the physical and chemical properties of the detected substance, so that the device is a non-invasive remote substance detection device; and the device not only can be applied to underground mineral resource exploration, but also can be applied to related fields such as environmental protection and archaeological.

The invention provides a warship lubricating oil water separation oil purifier with vibration reduction effect. The warship lubricating oil water separation oil purifier comprises a rack and a to-be-filtered oil liquid tank, wherein the rack is provided with an oil pump for extracting a to-be-filtered oil liquid in the to-be-filtered oil liquid tank, a heater and an oil suction filter are arrangedbetween the oil pump and the to-be-filtered oil liquid tank, the oil pump is communicated to a coalescence separator through a demulsification filter, the coalescence separator is communicated to a water collection tank and a pre-filter, the pre-filter is communicated to a fine filter, the water collection tank is communicated to a sewage bin through an electromagnetic valve, an oil-water interface instrument is arranged in the water collection tank, the fine filter is communicated to the heater, and an oil liquid pollution degree detector is communicated to an oil liquid collection box. According to the present invention, the integrates filtration and dewatering, can continuously work, has the high purification and dewatering efficiency, does not change the physical and chemical properties of oil liquids, can prolong the service life of oil liquids and save a lot of downtime and maintenance times, can ensure the continuous operation of warships and the no-stop wok of the equipment, and can perform online monitoring on the cleanliness of oil liquids and time feedback to the control system.

The invention provides a lubricating oil water separator and oil purifier for ships with a shock-absorbing effect, which includes a frame and an oil tank to be filtered, and an oil pump for extracting the oil to be filtered in the oil tank to be filtered is arranged on the frame. A heater and an oil suction filter are arranged between the oil pump and the oil tank to be filtered. The oil pump communicates with the coalescing separator through the demulsification filter. The coalescing separator is also connected with a water collection tank and a pre-filter, and the pre-filter There is a fine filter, and the water collection tank is connected to the sewage tank through the solenoid valve. There is also an oil-water interface instrument in the water collection tank, the fine filter is connected to the heater, and the oil pollution degree detector is also connected to the oil collection box. The bottom of the frame is provided with a damping mechanism. A new type of shock and noise reduction device is installed at the bottom of the machine, which can reduce the noise of the equipment by less than 20 decibels. The new type of shock absorption device installed at the bottom of the machine can greatly reduce the vibration amplitude of the equipment, and the safety is more reliable, and the structure is more stable. Equipment is more durable.

The invention provides a method for improving the heat release efficiency of a heating wire by utilizing laser texturing processing. The method comprises the steps of adjusting ultra-fast laser energy to enable the focusing power density to be around a damage threshold of the heating wire; focusing ultra-fast laser on the surface of the heating wire through a focusing lens, and scanning the surface of the heating wire; and regulating the scanning speed of the ultra-fast laser, so that a sub-wavelength magnitude micro grating structure is generated on the surface of the heating wire. A device for implementing the method is composed of a laser energy adjuster, the focusing lens and a heating wire mounting rack, wherein the laser energy adjuster and the focusing lens are arranged on the same light path, and the heating wire mounting rack is disposed on the rear side of the focusing lens. According to the method and the device, the micro grating structure is prepared on the surface of the heating wire through the ultra-fast laser, and the cycle of the micro grating structure is set in the sub-wavelength magnitude, so that the heat radiating area of the heating wire can be greatly increased when the ultra-fast laser is focused on the surface of the heating wire, and the heat release efficiency of the heating wire can be improved.