13results about How to "Inhibit adhesion" patented technology

A biodegradable laminate comprises: a substrate layer; a first thermoplastic resin (A1) layer laminated on one side of the substrate layer and comprising a polyhydroxyalkanoate resin; and a second thermoplastic resin (A2) layer laminated on the other side of the substrate layer and comprising a polyhydroxyalkanoate resin. The first thermoplastic resin (A1) layer has a unit area weight of 10 g / m². 2 Above and 200g / m 2 Hereinafter, the unit area weight of the second thermoplastic resin (A2) layer is 0.1 g / m². 2 Above and 5g / m 2 the following.

The application provides a preparation method of high-performance neodymium-iron-boron magnetic powder, comprising the following steps: A) uniformly heat treating neodymium-iron-boron rapid solidification alloy cast pieces; B) hydrogen breaking and airflow grinding the neodymium-iron-boron rapid solidification alloy cast pieces obtained in step A) to obtain neodymium-iron-boron magnetic powder; C) performing HDDR treatment on the neodymium-iron-boron magnetic powder to obtain HDDR magnetic powder; D) mixing the HDDR magnetic powder with high-melting-point alloy powder to obtain mixed magnetic powder; and E) performing at least one heat treatment on the mixed magnetic powder to obtain high-performance neodymium-iron-boron magnetic powder. The preparation method provided by the application can prepare neodymium-iron-boron magnetic powder with ideal coating structure that the rare earth-rich phase uniformly wraps the main phase crystal grains, and effectively improves the magnetic performance of the magnetic powder and the subsequently prepared magnet.

The utility model discloses a vortex oscillation type reactor for preparing mesenchymal stem cell spheres, which comprises a base, a motor and an oscillation support are mounted on the base, a cam is connected onto an output shaft of the motor, the motor drives the cam and the oscillation support to rotate synchronously, and a container bottle fixing support is mounted on the oscillation support through a spring. The container bottle fixing support is used for installing a replaceable container bottle, the motor is provided with a controller, and the controller is used for controlling the rotating speed, the forward and reverse rotation direction and timing start and stop of the motor. According to the utility model, the cells are inhibited from adhering to the wall in a special vortex oscillation mode, the cells are promoted to naturally gather to form spheres, the direct shear damage of mechanical stirring to the cells is reduced, and the cell activity and the sphere forming efficiency are improved; the rotating speed and the direction of the motor can be controlled, the vortex intensity and the oscillation frequency are accurately regulated and controlled, the structure is simple and compact, operation is convenient and fast, and the device is suitable for small laboratories.

This invention discloses a pre-placed adjustable hernia repair patch and its preparation method, relating to the field of medical device technology. The patch body is a polypropylene woven mesh with a weight of less than 50 g / m². The polypropylene woven mesh has a double-layer gradient structure with different densities on both sides. This pre-placed adjustable hernia repair patch uses a double-layer gradient structure of the same woven mesh. The outer layer has large pores (80-300 μm) to facilitate fibroblast ingrowth and tissue fixation, while the inner layer has small pores (15-80 μm) to form a physical barrier, effectively inhibiting visceral adhesions. It addresses both fixation and anti-adhesion needs. Temporary fixation is achieved through sliding PLGA fixation pins, pre-drilled holes, and elastic rings. The fixation pins are available in various lengths, and the elastic rings enable temporary fixation and position adjustment. Blue marking lines facilitate directional identification, and barium sulfate contrast markers aid in intraoperative positioning and postoperative follow-up.

A printing apparatus, a printing control method, and a storage medium are provided. The control device (40) of the printing apparatus (10) sets a set of adhesion countermeasure target dot groups that includes at least the second dot group when the following conditions are met: the proportion of printing areas with a first concentration or higher in the first dot group is a first threshold or higher; and the comparison result between the printing areas with a first concentration or higher in the first dot group and the printing areas with a second concentration lower than the first concentration in the subsequent second dot group is a second threshold or higher. In addition to the first power-on control period (TA) for printing on the printed medium (20), the control device sets a second power-on control period (TB) for adjusting the temperature change of the thermal head (30) without printing on the printed medium, and generates countermeasure data for energizing at least a portion of a plurality of heating elements during the second power-on control period of each dot group in the set of adhesion countermeasure target dot groups.

The present application relates to the technical field of composite functional materials, in particular to a spinel-type composite photothermal super-hydrophobic coating, a preparation method thereof and application thereof in ice prevention and removal, wherein the preparation method of the spinel-type composite photothermal super-hydrophobic coating first prepares spinel-type CuFeMnO4 material with micro-nano structure through co-precipitation and high-temperature heat treatment of copper salt, iron salt and manganese salt, and then performs surface hydrophobic modification on the spinel-type CuFeMnO4 material by using palm wax. By combining the excellent photothermal conversion performance of the spinel-type CuFeMnO4 material with the low surface energy characteristics of palm wax, the synergistic effect of high-efficiency photothermal conversion and super-hydrophobic performance is realized, so that the coating layer formed by the prepared spinel-type composite photothermal super-hydrophobic coating has excellent super-hydrophobicity, durability and environmental adaptability and can achieve good ice prevention and removal effect. In addition, the preparation method has the advantages of simple process, low cost and environmental friendliness.

The invention provides cooling equipment for a lubricating oil station, and belongs to the technical field of lubricating oil stations. Comprising an oil tank, one end of the top of the oil tank is fixedly connected with a driving pump, the surface of the oil tank is fixedly connected with a filter, one end of the filter is fixedly connected with a cooler, one end of the cooler is fixedly connected with an oil outlet pipe, and the interior of the cooler is fixedly connected with a heat exchange pipe; and one end of the top of the cooler is fixedly connected with a pretreatment separation assembly, and the pretreatment separation assembly is used for removing bubbles and oil foam. By arranging the pretreatment separation assembly and the cooling adjustment assembly, the purity of pretreated oil liquid is improved, interference of bubbles and impurities on the subsequent heat exchange process is avoided, scaling of the inner wall of a heat exchange pipe is reduced, a strong turbulent flow state is formed, the thickness of a water boundary layer is effectively reduced, heat resistance is reduced, and the temperature distribution of cooling water is more uniform; and the overall heat exchange coefficient is increased, dynamic descaling is achieved, and stable operation of cooling equipment is guaranteed.

The application discloses a kind of anticorrosive mortar for pipeline and preparation method thereof, belong to building material technical field.The anticorrosive mortar for pipeline, by weight parts, including: by silicate cement 100-200 parts, slag 100-200 parts and gypsum 20-30 parts constitute low-heat micro-expansion cementitious system, high-alumina cement 20-30 parts, mechanism sand 500-600 parts, latex powder 15-20 parts, water reducing agent 0.5-1 part, inorganic antibacterial agent 0.5-3 parts and water 90-110 parts.The application constructs binary cementitious system by utilizing low-heat micro-expansion system and high-alumina cement, utilizes the synergistic reaction of slag, gypsum and cement hydration product, directional generation appropriate ettringite to compensate shrinkage, significantly improves the bonding strength of anticorrosive layer and pipeline base surface, while high-alumina cement hydration produces calcium aluminate hydrate and aluminum hydroxide colloid, endows mortar with excellent acid, alkali and salt corrosion resistance.The process of the application is simple, low in cost and green, and can effectively solve the corrosion failure problem of water supply and drainage pipeline in complex chemical environment.

This invention belongs to the fields of bioengineering, environmental engineering, and clean energy technology, and discloses a method and its application for improving the enrichment rate of biofilm at the anode of a microbial electrolysis cell. The method includes the following steps: constructing a microbial electrolysis cell reactor; adding inoculum to the reactor; adding PBS buffer nutrient solution and acclimatization substrate to the reactor; purging the air from the reactor to induce an anaerobic state; applying a constant micro-voltage and connecting a resistor in series to the anode and cathode of the reactor; culturing microorganisms at a constant temperature of 25-35℃, monitoring the voltage across the series resistor in real time, and repeating steps S3-S7 when the output voltage drops below 20mV, with the proportion of acclimatization substrate gradually increasing in each cycle. This invention, through a gradient acclimatization scheme that gradually increases the proportion of acclimatization substrate, can enrich dominant bacterial communities, resulting in biofilms with complete bacterial structure and high abundance of functional bacteria.

The application discloses a wind-wave-fish high-stability integrated system, which comprises a floating wind turbine platform, a heaving wave power generation device and a marine fishing net; the heaving wave power generation device is installed at the center of a floating cylinder of the floating wind turbine platform; the heaving wave power generation device captures energy by vertical oscillation movement of the floating wind turbine platform under the action of waves and converts the energy into electric energy; and the marine fishing net is fixed to the base of the floating wind turbine platform. The application can realize deep-sea marine culture and further reduce heaving and rolling of the floating wind turbine platform.

This invention provides a polyimide film, a method for manufacturing the same, a metal-clad laminate, a circuit board, a multilayer circuit board, an electronic device, and an electronic device. The single-sided circuit board provided by this invention suppresses adhesion of the insulating resin layer by altering the surface state of the insulating resin layer. The polyimide film (10) has a three-layer laminate structure consisting of a polyimide layer (11), a polyimide layer (12) stacked adjacent to the polyimide layer (11), and a polyimide layer (13) stacked adjacent to the polyimide layer (12). The polyimide layer (11) has a modified layer and an exposed modified surface (MS). The concentration of fluorine atoms in the polyimide film (10) when measured by X-ray photoelectron spectroscopy (XPS) of the modified surface (MS) is in the range of 25–50 atm%.

This utility model provides a degreasing mechanism for processing copper strips, relating to the field of copper strip processing degreasing technology. It includes: a degreasing device; four partitions installed inside the degreasing device, dividing the interior into three chambers: a cleaning chamber, a washing chamber, and a drying chamber, from left to right; openings on both sides of the outer end of the degreasing device and on the outer sides of the four partitions; and a degreasing assembly disposed inside the degreasing device. This copper strip processing degreasing mechanism uses the degreasing assembly to spray cleaning agent onto the surface and bottom of the copper strip to remove grease, preventing grease residue on the copper strip surface and ensuring the quality of subsequent processing. The washing assembly cleans the surface and bottom of the copper strip, removing residual cleaning agent solution and preventing it from adhering to the copper strip, thus avoiding oxidation, discoloration, or even corrosion.

This invention provides a claw-type electrochemical fusing separation mechanism, belonging to the technical field of fusing separation mechanisms. The claw-type electrochemical fusing separation mechanism includes: a separation load housing, a base, a pressure plate, claws, a reversing rod, a fuse, a fuse mounting post, a spring, and cathode material. This invention utilizes the relative positions of the separation load housing, claws, and reversing rod to achieve locking and separation of the housing. A spring is installed between the pressure plate and the base; the pressure plate compresses the spring, and the fuse load achieves locking of the separation mechanism. The fuse, cathode material, and seawater form an electrochemical reaction circuit. The fuse melts due to seawater corrosion, and the spring, freed from external force constraint, springs open the pressure plate. The movement of the pressure plate is converted into the contraction of the claws via the reversing rod, achieving fusing separation. This invention solves the problems of insufficient locking reliability, low fusing time control accuracy, and weak adaptability to deep-sea environments in existing claw-type electrochemical fusing separation mechanisms.