12results about How to "Uniform modification" patented technology

The invention discloses a laser power adaptive control method for laser-assisted processing. The method comprises the following steps: S1, thermal modeling and simulation experiment are carried out to obtain data; s2, designing a model prediction control algorithm; s3, controlling software by an actuator; the output power of the laser is controlled through laser control software, and the predicted output power of the model prediction control algorithm is used as the input of the control software, so that the output power of the laser is dynamically updated in real time; and S4, designing a sensor and detecting.

The invention discloses a modification method of a PVDF (Polyvinylidene Fluoride) separation membrane, and belongs to the technical field of water treatment. The modification method provided by the invention comprises the step of impacting the PVDF separation membrane by adopting high-pressure liquid, so that high-pressure micro-droplets are in high-speed friction with the surface of the PVDF separation membrane. According to the modification method provided by the invention, the hydrophilicity, the surface potential and the dye retention rate of the PVDF separation membrane can be effectively improved.

The invention discloses a self-aggregation weak-consolidation multifunctional sand control agent and application thereof, and belongs to the technical field of oil gas chemistry. The sand control agent is prepared by simply mixing 0.2-0.6 part by weight of a hydrophobic modifier, 0.6-1.2 parts by weight of a chemical modifier and 2-4 parts by weight of an organic solvent. The hydrophobic modifier is selected from one or more of the following components: methacryloyloxy silane, heptadecafluorodecyl trimethoxy silane, amino alkyl polydimethylsiloxane, octamethylcyclotetrasiloxane, poly [3-((2-aminoethyl) amino) propyl] methyl (dimethyl) siloxane, gamma-propyl trimethoxy silane and the like; the chemical modifier is a compound containing alkenyl. The sand control agent can be used for coating modification of a proppant, self-aggregation and clustering in water are realized, and solidified sand is formed through polymerization of the alkenyl-containing compound on the surface, so that the sand control effect is achieved; the sand control agent can also be directly added into fracturing fluid and permeates into a stratum to form a hydrophobic consolidation layer, so that the effect of stabilizing a rock wall surface is achieved.

The application discloses a kind of plasma jet array devices for large size epoxy surface modification, including frame, tank, gas cylinder for loading inert gas, aperture network, high voltage power supply and metal insert;Tank and metal insert are fixed on frame, tank is flat tank and its slot is formed with jet airway for placing and fixing epoxy insulation, the bottom and side of tank are provided with jet spout arranged in array, jet spout is connected by gas inlet pipe, gas inlet pipe is arranged in the inside of side plate and bottom plate of tank;Aperture network is connected on jet spout and connects high voltage power supply, tank is grounded by wire;Metal insert is inserted above epoxy insulation, metal insert is grounded by wire.The application also discloses the use method applied to the above device.Adopting the application, the surface of large size epoxy insulation can be quickly and uniformly modified, and the charge release capacity is improved.

The utility model relates to the field of artificial diamonds, and discloses an artificial diamond synthetic raw material modification treatment device which comprises a machine shell, the top of the machine shell is movably connected with a cover plate, the top of the cover plate is fixedly connected with a fixing column, one end of the fixing column is fixedly connected with a motor, and the other end of the fixing column is fixedly connected with a base. And an output shaft of the motor is fixedly connected with a rotating shaft through a coupling. According to the modification treatment device for the synthetic raw materials of the artificial diamond, through the arrangement of the machine shell, the cover plate, the motor, the rotating shaft, the stirring blades, the frame plate and the grid plate, the device can have the effect of high working efficiency, and a surfactant and the synthetic raw materials of the diamond are uniformly mixed through stirring; the diamond particles can be fully contacted with the surface active agent at each moment so as to realize comprehensive and uniform modification, and the surface active agent can be more quickly dispersed in the raw material by stirring and reacts with the surface of the raw material, so that the modification time is shortened, the modification efficiency is improved, and the use requirements of people are met.

The utility model provides a modification device which comprises a modification tank and a tool, and the tool is used for installing coiled materials and arranged in the modification tank. The tool comprises a mounting shaft, a cavity is formed in the mounting shaft, a first through hole communicated with the cavity is formed in the circumferential surface of the mounting shaft, an opening is formed in one end of the mounting shaft, and the opening is communicated with the cavity. According to the device for modifying the non-woven fabric applied to the filter element, the non-woven fabric coiled material is fixed on the tool in the modification tank for modification, so that the modified non-woven fabric capable of adsorbing heavy metals can be prepared. The modification liquid in the modification tank can enter the coiled material from the inner cavity of the mounting shaft, so that the modification liquid flows out from the interior of the coiled material to the exterior of the coiled material, the modification degree of the middle part and the modification degree of the external part of the non-woven fabric are kept consistent, uniform and stable modification of the non-woven fabric coiled material is realized, and the quality of the modified non-woven fabric is improved.

The invention relates to the technical field of medical instruments, in particular to a heparin coating based on material surface ammonification modification and a preparation method thereof, and the preparation method at least comprises the following steps: carrying out ultrasonic pretreatment on a base material with purified water, and drying for later use; the preparation method comprises the following steps: performing amination modification on a base material subjected to ultrasonic pretreatment by adopting an ammoniation reagent solution, and immersing the base material into a heparin solution to prepare the base material with a heparin coating on the surface. The surface of the material is subjected to amination modification by adopting a micromolecular ammoniation reagent and / or a macromolecular ammoniation reagent system, complex pretreatment such as plasma and ultraviolet rays does not need to be carried out on a base material, specific functional group activation does not need to be carried out on heparin, and the heparin is directly reacted after being subjected to ammoniation modification; the stable covalent grafted heparin anticoagulation coating can be formed, the anticoagulation time is prolonged, and the long-term implantation requirement is met.

The utility model relates to the technical field of inorganic non-metal powder processing, and provides a constant-temperature superfine inorganic non-metal powder wet grinding modification device which comprises a water mill barrel, a grinding medium discharge pipe is fixedly connected to the middle of the bottom end of the water mill barrel, a slurry inlet pipe is fixedly connected to the lower end of one side of the water mill barrel, and a slurry outlet pipe is fixedly connected to the lower end of the other side of the water mill barrel. A slurry outlet pipe is fixedly connected to the upper end of the other side of the water mill barrel, a modified additive feeding pipe is fixedly connected to one end of the top end of the top cover, and a pneumatic telescopic rod, stirring blades, an overturning hopper, a stirring rod and a scraper blade are arranged, so that the stirring rod moves up and down through work of the pneumatic telescopic rod; furthermore, materials at the lower end of the interior of the water mill barrel can be turned over through the turning hopper, and residues of the materials on the inner wall of the water mill barrel are reduced through the scraping plate, so that inorganic non-metal powder and the surface of a modified additive are more quickly and uniformly mixed, and the modification effect and the modification efficiency are improved.

The application provides a direct injection type asphalt modifier, a dry modified asphalt mixture and a preparation method thereof, and belongs to the technical field of new road materials, and is used for solving the problems of dust pollution, material segregation, poor mixture uniformity and damaged road performance caused by the "post-added mineral powder" process in the application process of the existing direct injection type asphalt modifier. The direct injection type asphalt modifier is in a granular form, and comprises the following components in parts by weight: 10-20 parts of polyurethane, 1-5 parts of asphalt and 50-80 parts of mineral powder; the polyurethane is obtained by mixing and reacting a polyurethane prepolymer and a polyol component, and the molar ratio of NCO groups to OH groups in the polyurethane is 1.01-1.1:1. The direct injection type asphalt modifier combines the polymer component (polyurethane) for modification and the mineral powder component for filling, can perform the dual functions of "asphalt modification" and "mineral powder filling", and avoids the step of "post-added mineral powder".

The present invention proposes a special release printing material for water-based thermal transfer and a preparation method thereof, and belongs to the technical field of printing materials. The special release coating for water-based thermal transfer and an ultraviolet light initiator are mixed evenly, coated on a PE film, and after curing, a PE film with a release layer is obtained, and a pattern is printed on the release layer with water-based ink, and a transfer glue is applied, and the material is transferred to the substrate at high temperature. The special release printing material for water-based thermal transfer prepared by the present invention uses polyester film (PET) as a printing carrier, firstly coats a release layer on the PET film, and then prints various patterns on the release layer, and then coats a transfer glue on the pattern, and transfers the printed pattern to the substrate through instantaneous high-temperature extrusion. The release layer has good weather resistance, chemical solvent resistance, scratch resistance, ultraviolet radiation resistance, antibacterial and anticorrosive properties, organic matter (formaldehyde) degradation performance and mechanical properties, and has broad application prospects.

A polymer abrasive modification reaction device comprises a support and a reaction kettle mounted on the support, an upper supporting shaft vertically penetrating through the reaction kettle is rotatably mounted at the top of the reaction kettle, and a lower supporting shaft vertically penetrating through the reaction kettle is rotatably mounted at the bottom of the reaction kettle. An upper supporting pipe which is transversely arranged is installed on the upper supporting shaft in the reaction kettle, a lower supporting plate which is transversely arranged is installed on the lower supporting shaft in the reaction kettle, side supporting pipes which are vertically arranged are fixedly connected between the two sides of the upper supporting pipe and the two sides of the lower supporting plate, and a water inlet channel which is communicated with the upper supporting pipe is arranged in the upper supporting shaft. The side supporting pipe is communicated with the upper supporting pipe, and a plurality of water outlet holes are further formed in the side portion of the side supporting pipe. A plurality of ultrasonic vibrators are also mounted between the side supporting pipes; and a driving device for driving the lower supporting shaft to rotate is mounted at the bottom of the reaction kettle. The device can realize efficient stirring and heating, and effectively solves the problems of insufficient stirring and non-uniform modification of a traditional device.

The invention discloses an electromagnetic shielding material and a preparation method and application thereof.The preparation method comprises the steps that firstly, a cotton fabric is placed in a saturated NaOH solution of bivalent copper salt to be subjected to an impregnation reaction, and a modified cotton fabric is prepared; and washing and drying the modified cotton fabric, and carbonizing to obtain the electromagnetic shielding material. The method is simple in process and reasonable in design, the electromagnetic shielding material with excellent performance can be obtained only through simple dipping and carbonization treatment, the method is suitable for industrial expanded application, and meanwhile the product has good electromagnetic shielding effectiveness based on the copper elementary substance and the carbonaceous material.