127results about How to "High surface energy" patented technology

The utility model relates to a battery monomer, a battery and a power utilization device, and belongs to the technical field of batteries. The battery monomer comprises a shell, an electrode terminal and a pressure relief mechanism, the shell is provided with a first wall, the outer surface of the first wall comprises a first area and a second area, and the contact angle between the first area and electrolyte is larger than the contact angle between the second area and the electrolyte; at least one of the electrode terminal and the pressure relief mechanism is disposed in the first region. The first area and the second area with different contact angles are arranged on the first wall, so that the flow characteristics of the electrolyte on the first wall are different, and the electrode terminal and / or the pressure relief mechanism which are / is easy to corrode and difficult to clean are / is arranged in the first area, so that the electrolyte is more difficult to enrich in the first area; the electrolyte on the first wall can be effectively prevented from flowing to the position where the electrode terminal and / or the pressure relief mechanism is located, and important parts on the first area are effectively protected.

According to the modified fiber mining filling material and the preparation method thereof provided by the invention, through a dual modification technology of plasma treatment and a silane coupling agent, the uniform dispersity of fibers in a cementing agent is enhanced, and the properties such as rapid hardening, early strength and compressive strength retention rate of the filling material are remarkably improved. The filling material comprises cement clinker, solid waste, a retarder, an early strength agent, modified fibers, an accelerator, gypsum, a water reducing agent, a suspending agent and other raw materials, the modified fibers are treated through specific steps, surface functional groups are increased, and the compatibility and binding power of the modified fibers and a cementing agent are improved. The filling material disclosed by the invention has the advantages of good transportability, simplicity and convenience in construction, low cost and environmental protection characteristic, conforms to the development trend of green mining industry, is particularly suitable for being applied to mine filling and supporting, and has wide application prospects and social and economic values.

The invention relates to a modified binder for a dry-method electrode, a dry-method electrode pole piece and a preparation method of the dry-method electrode pole piece. Polycyclic aromatic hydrocarbon is dissolved in an aprotic polar solvent, alkali metal is added, and a polycyclic aromatic hydrocarbon alkali metal reagent is generated; and adding polytetrafluoroethylene into the polycyclic aromatic hydrocarbon alkali metal reagent to obtain the modified polytetrafluoroethylene. Alkali metal ions in the polycyclic aromatic hydrocarbon alkali metal reagent can destroy C-F bonds in the PTFE, remove some fluorine atoms on the surface of the PTFE and leave a carbonized layer and some polar groups such as hydroxyl groups, carbonyl groups and unsaturated bonds, and the groups can increase the surface energy, reduce the contact angle and improve the wettability, so that the cohesiveness of the modified PTFE is improved, and the service life of the PTFE is prolonged. The binding force between the PTFE and the conductive agent and the current collector is enhanced, and the problem that the viscoelasticity of the PTFE in the dry-method pole piece is insufficient is solved. Through modification, part of C-F bonds in PTFE are destroyed in advance, so that generation of interface side reaction products is reduced, the problem of initial effect reduction of a dry-method electrode is improved, and the cycle stability of a battery is improved.

The invention discloses a high-thermal-conductivity polymer shaped composite phase change material and a preparation method thereof. The high-thermal-conductivity polymer shaped composite phase change material comprises macromolecular resin, a processing aid, a thermal conductive filler, an organic phase change material, a modifier, an initiator, an emulsifier, a dispersant and a catalyst. According to the invention, expanded graphite is used as a heat-conducting reinforcing agent, high-density polyethylene is used as a carrier, paraffin is used as a phase-change material, a melt blending method, an in-situ polymerization method and a hot press molding process are adopted to prepare a microencapsulated HDPE shaped paraffin composite material, the HDPE shaped paraffin composite material is completely encapsulated in a polymer film, so that the core material is completely coated, and the heat-conducting property of the core material is improved. According to the present invention, the microcapsule is prepared by using a chemical bond, and is tightly combined with the surface of the core material through the chemical bond so as to improve the stability and the durability of the microcapsule, such that the microcapsule can prevent leakage and improve the thermal conductivity, such that the microcapsule can maintain the stable performance in the multiple phase change cycles, and the microcapsule has good fluidity and good dispersion so as to be conveniently processed and applied in various base materials.

The invention provides an aluminum-based composite material reinforced by nickel-coated silicon carbide through a magnetron sputtering dry method and a preparation process of the aluminum-based composite material, and relates to the technical field of metal-based composite materials and advanced electronic packaging thermal management materials. Comprising the following steps that S1, silicon carbide particles coated with nickel through a magnetron sputtering dry method and aluminum powder are put into a mold to be subjected to compression molding, and an initial blank is obtained; and S2, the initial blank prepared in the step S1 is placed in a re-pressing sintering furnace under the inert gas protection condition, continuous re-pressing is conducted under the temperature condition ranging from the temperature lower than the aluminum melting point by 50 DEG C to the temperature higher than the aluminum melting point by 200 DEG C, and the nickel-coated silicon carbide reinforced aluminum-based composite material obtained through the magnetron sputtering dry method is obtained. The aluminum-based composite material reinforced by magnetron sputtering dry nickel-coated silicon carbide disclosed by the invention is excellent in heat-conducting property and mechanical property and long in service life.

The invention discloses a graphene-coated hard carbon negative electrode material and a preparation method thereof, and belongs to the technical field of hard carbon negative electrode materials. The preparation method of the graphene-coated hard carbon negative electrode material comprises the following steps: carrying out pretreatment and three-step soaking on coconut shells, carrying out biomass carbonization, mixing with a microbial suspension, and adsorbing to obtain a microbial adsorption type hard carbon material; and then carrying out surface treatment, chemical vapor deposition, impregnation, secondary chemical vapor deposition and annealing treatment on the microbial adsorption type hard carbon material to obtain the graphene coated hard carbon negative electrode material. The negative electrode material prepared by the method is high in first discharge capacity, high in first coulombic efficiency and good in cycle performance.

The invention discloses a bimetallic Ag and Pd loaded WO3 material and a preparation method thereof, and relates to the technical field of sensor material preparation, and the preparation method comprises the following steps: 1, dissolving a tungsten source in an ethanol solution, mixing, hydrolyzing, aging, precipitating, washing, drying, calcining and cooling; 2, adding deionized water, adding a silver source solution and a palladium source, adding ascorbic acid, and stirring; 3, centrifuging, washing with ethanol and deionized water, and drying; 4, selecting a gold interdigital electrode with aluminum oxide ceramic as a substrate as a base electrode material, dipping the WO3 nano-particle dispersion liquid by using a line drawing pen, and uniformly coating the WO3 nano-particle dispersion liquid on the surface of the interdigital electrode; and 5, electrode drying and heat treatment. The efficient gas sensing material is prepared through the preparation method which is easy to operate, environmentally friendly and economical, and the gas sensing material has the advantages of being high in sensitivity, rapid in response, good in selectivity and the like at the low working temperature.

The invention discloses a corrosion-resistant cavitation-erosion-resistant self-repairing marine protective coating suitable for a high-temperature environment and a preparation method thereof, belongs to the technical field of marine protective coatings, and aims to further improve the comprehensive performance of existing self-repairing polyurethane. FA-FGE diol is used as a chain extender, and on the basis of a DA bond, the corrosion-resistant cavitation-erosion-resistant self-repairing marine protective coating suitable for the high-temperature environment and the preparation method of the corrosion-resistant cavitation-erosion-resistant self-repairing marine protective coating are prepared. A hydrogen bond is used as a supplement to adjust the content of a chain extender according to different molar ratios, and is introduced into a PU system to obtain self-repairing performance. The dopamine is used for performing surface modification on the carbon nano tube, so that the binding property and the dispersity of the dopamine modified carbon nano tube and a polyurethane interface are improved, and the overall protection performance of the material is improved. Tests show that the material toughness of the coating can reach 356 MJ / m < 3 >, and the tensile strength can reach 72 MPa. Compared with previous reports, the corrosion resistance and cavitation erosion resistance are remarkably improved, the self-healing rate under infrared light for 90 s is 93%, and the self-healing rate after repeating for 3 times is 81%.

The invention belongs to the field of waterproof and oil-proof agent materials, and particularly relates to an environment-friendly degradable fluoride-free oil-resistant and fat-resistant agent as well as a preparation method and application thereof, and the environment-friendly degradable fluoride-free oil-resistant and fat-resistant agent is prepared from the following raw materials in parts by weight: 40-50 parts of biological wax, 4-6 parts of modified polyacrylate, 15-20 parts of rosin, 1-2 parts of shellac, 75-100 parts of filler and 150-190 parts of deionized water. The oil-resistant and fat-resistant agent prepared by the invention can effectively prevent grease and water from permeating, has good waterproof and oil-resistant effects, and has good degradability.

The invention belongs to the technical field of polytetrafluoroethylene microporous membranes, and relates to an Al2O3 / PTFE composite microporous membrane and a preparation method and application thereof.The Al2O3 / PTFE composite microporous membrane is composed of Al2O3 nanoparticles and PTFE resin, the porosity is 65%-95%, the thickness is 3-25 microns, the average pore size is 0.10-1.5 microns, the transverse and longitudinal tensile strength is larger than or equal to 20 MPa, and the water contact angle is smaller than or equal to 90 degrees. According to the invention, the Al2O3 / PTFE composite microporous membrane is endowed with good surface wettability and excellent mechanical property by utilizing self-humidifying and in-situ reinforcement of Al2O3 nanoparticles, and the Al2O3 / PTFE composite microporous membrane is mainly applied to a reinforcing material of a proton membrane. The preparation process is simple, and industrial popularization is easy to realize.

The invention discloses a low-carbon masonry cementing material as well as a preparation method and application thereof. The low-carbon masonry cementing material is prepared from the following raw materials in parts by weight: 95-100 parts of ceramsite waste residue powder, 1-10 parts of magnesium aluminum silicate slag and 0-4 parts of clinker, the low-carbon masonry cementing material contains a large amount of amorphous active silicon, and under the direct excitation hydration action of the magnesium aluminum silicate slag component, the hydration rate of the low-carbon masonry cementing material is promoted, so that the low-carbon masonry cementing material has the characteristics of improved early and long-term strength, strong durability, high water retention rate and small hydration heat; besides, by adding the clinker, mineral components such as CaO, SiO2 and Al2O3 can be released and promoted to be subjected to a hydration reaction, C-S-H series hydrates and ettringite are generated, and the artificial stone is coagulated and hardened into the hard artificial stone at the normal temperature like cement.

The invention relates to the technical field of powder coatings, in particular to high-fluidity superfine molding powder and a preparation method thereof. The high-fluidity superfine plastic powder comprises the following components in parts by weight: 40-50 parts of epoxy resin, 15-25 parts of a curing agent, 2-4 parts of a catalyst A, 3-5 parts of a plasticizer, 5-8 parts of polyacrylic acid and / or polyacrylate, 3-5 parts of a silane coupling agent, 10-20 parts of filler and 4-6 parts of other auxiliaries, the curing agent at least comprises a fluorine modified amine curing agent; and the median particle size D50 of the powder coating is 10-20 [mu] m. The powder coating adopting the epoxy resin / fluorine-modified amine curing agent system has better flowability and uniformity, charged powder particles can be guided to the surface of a workpiece under the action of an electric field to form a uniform thin coating, the powder particles are easier to carry charges with the same polarity, repulsive force among the particles is increased, and the powder coating can be applied to the surface of the workpiece. Uniform dispersion of powder particles can be kept, and the phenomenon of particle agglomeration is reduced.

The invention discloses a lithium battery cover plate six-surface detection device and method, and relates to the technical field of lithium battery detection. The lithium battery cover plate six-face detection device comprises a detection device rack, a lifting elevator, a cleaning and dust removing mechanism, a film pasting mechanism, a product overturning module, a feeding transfer mechanical arm and a detection belt are arranged on the detection device rack, and the lifting elevator, the cleaning and dust removing mechanism, the film pasting mechanism, the product overturning module, the feeding transfer mechanical arm and the detection belt are arranged on the detection device rack. A camera detection unit is arranged on the detection belt, and a discharging mechanism is arranged on the detection device rack. According to the six-face detection device for the lithium battery cover plate, automatic treatment is achieved in the whole process from cleaning and dust removal, film pasting, overturning, detection to discharging, the phenomenon that the detection effect is affected by dirt is reduced, meanwhile, manual intervention is greatly reduced in the detection process, the production efficiency and consistency are improved, and the production cost is reduced. And comprehensive detection of six surfaces of the lithium battery cover plate can be realized through the multi-camera detection unit.

The invention relates to the technical field of bamboo-based full-biodegradable mulching films, in particular to a bamboo-based full-biodegradable mulching film preparation method which comprises preparation of bamboo-based full-biodegradable master batches and preparation of a bamboo-based full-biodegradable mulching film. The preparation method of the bamboo-based full-biodegradable master batch comprises the following steps: 1, drying bamboo product wastes at 60-80 DEG C for 6-8 hours, removing residual moisture, and crushing in a crushing device for 1-3 hours until the particle size is 500-1500 meshes for later use; 2, soaking PBAT particles in water, putting the PBAT particles into a drying oven, adjusting the temperature to 60-95 DEG C for 8-72 hours, taking out the particles, drying the particles at 60 DEG C for 12 hours to obtain high-melt-index PBAT particles with the melt index of 30-150 g / 10 min, and uniformly mixing KH570 and ethanol according to the ratio of 1: (1-10) for later use; the bamboo product waste is collected, crushed and modified again and added into the degradable mulching film, so that waste resources can be recycled, the performance of the degradable mulching film is improved, the cost is reduced, and the purpose of replacing plastic with bamboo is achieved.

The present invention belongs to the technical field of polyethylene preparation, and specifically relates to a cross-linked polyethylene insulated cable and a preparation method thereof. The cross-linked polyethylene insulated cable is composed of material A and material B, and the weight ratio of material A to material B is 95:5; material A is composed of the following raw materials: modified linear low-density polyethylene, 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, di-tert-butylperoxyisopropylbenzene, vinyl tri(2-methoxyethoxy)silane, 1,2-polybutadiene; material B is composed of the following raw materials: linear low-density polyethylene, dibutyltin dilaurate, and antioxidant. In the cross-linked polyethylene insulated cable of the present invention, material A interacts with material B, so that the finally prepared cross-linked polyethylene insulated cable has excellent mechanical properties, chemical stability, and heat aging resistance.

The invention discloses magnetic asphalt concrete for an electromagnetic induction wireless charging pavement as well as a preparation method and application of the magnetic asphalt concrete, and belongs to the field of road engineering materials and road infrastructures. The magnetic asphalt concrete is prepared from the following raw materials in parts by weight: 8 to 12 parts of magnetic micro powder, 5.5 to 6.5 parts of asphalt, 50 to 75 parts of coarse aggregate, 20 to 40 parts of fine aggregate and 0.1 to 0.2 part of coupling agent, wherein the magnetic micro powder is prepared by mixing magnetic separation steel slag and a solid waste admixture, calcining, ball-milling to obtain magnetic coarse powder, mixing with a composite dispersant, and ball-milling at a high speed; the composite dispersing agent is a mixture of triethanolamine, glycerol and oleic acid. The magnetic asphalt concrete has good adhesion performance and pavement performance, can enhance the adhesion and interlayer mechanical strength of an asphalt concrete surface layer and a charging device when being used for a wireless charging pavement, greatly improves the charging efficiency, prolongs the service life of the pavement, and has a good application prospect.

The invention provides a brominated butyl rubber piston for a pre-filled syringe and a preparation method of the brominated butyl rubber piston, and relates to the technical field of rubber pistons. The brominated butyl rubber piston comprises a basic elastomer and an inert barrier film covering the surface of the basic elastomer. The basic elastomer comprises brominated butyl rubber, bio-based rubber, polyisobutene, talcum powder, calcined kaolin, carbon black, magnesium powder, titanium dioxide, sulfur, active magnesium oxide, polytetrafluoroethylene wax and a slip agent; the inert barrier membrane is polytetrafluoroethylene modified by modified polydimethylsiloxane. The pharmaceutical composition has good drug compatibility and administration convenience, and ensures the safety of medication.

The invention relates to a liquid crystal dimming film with a ceramic hardened coating, and relates to the technical field of liquid crystal dimming films, the liquid crystal dimming film comprises a liquid crystal dimming film and a ceramic hardened coating, and the ceramic hardened coating is obtained by coating ceramic water paint. The ceramic water paint is prepared from the following raw materials in parts by mass: 40-60 parts of organic-inorganic composite silicon resin,-8 parts of anti-reflection nano filler, 2-5 parts of wear-resistant filler, 1-2 parts of bulking agent, 20-30 parts of anti-reflection film-forming resin, 1-3 parts of dispersing agent, 0.5-1 part of defoaming agent, 0.5-1 part of flatting agent and 30-50 parts of water. The liquid crystal dimming film has the effects of improving the hardness, the light transmittance and the weather resistance of the ceramic hardened coating, and the prepared liquid crystal dimming film with the ceramic hardened coating is resistant to scraping and abrasion and can keep good working performance for a long time.

The utility model provides a film label UV code spraying printing machine which comprises a machine frame, a conveying assembly, a card issuing assembly, a UV code spraying assembly and a UV drying assembly, a smoothing assembly, a corona assembly and a first counting assembly are arranged between the card issuing assembly and the UV code spraying assembly, and a removing assembly, a second counting assembly and a material collecting assembly are arranged behind the UV drying assembly. The card issuing assembly, the smoothing assembly, the corona assembly, the first counting assembly, the UV code spraying assembly, the UV drying assembly, the removing assembly, the second counting assembly and the material collecting assembly are all arranged on the machine frame and are sequentially arranged in the production direction. According to the utility model, the counting assembly is arranged, so that the passing thin film labels and good hangtags can be automatically counted, manual counting is avoided, and the production efficiency is improved; and the corona assembly is arranged, the corona assembly can conduct corona treatment on the surface of the film label, the film surface energy is improved, and therefore the adhesiveness and durability of the film are improved, code spraying of the UV code spraying assembly is facilitated, and the printing effect is improved.

The invention discloses a self-compacting refractory concrete and a preparation method thereof, comprising the following raw materials in parts by weight: 600-700 parts of coarse aggregate; 900-1000 parts of fine aggregate; 40-60 parts of fly ash; 300-600 parts of cement; 150-250 parts of water; 4-8 parts of water reducer; 10-20 parts of modified ethylene-vinyl acetate copolymer; 5-15 parts of steel fiber; 2-8 parts of maleic anhydride; the modified ethylene-vinyl acetate copolymer comprises ethylene-vinyl acetate copolymer and microalgae oil. The present application has the function of improving the fire resistance of concrete.

The present application belongs to the technical field of biochar, and particularly relates to a high-activity acidolysis biochar, which is prepared by the following steps: S1, pretreating agricultural and livestock waste; S2, acidolysing the pretreated biomass with dilute acid to obtain acidolysed biomass; S3, placing the acidolysed biomass into a high-temperature furnace to perform carbonization under an oxygen-free condition, and using a step-by-step heating mode to obtain preliminary biochar; and S4, mixing the preliminary biochar with a copolymer solution to prepare the high-activity acidolysis biochar. In the present application, the sodium lignosulfonate-polyglutamic acid copolymer forms a stable connection with the biochar through chemical bonding, the porous surface of the biochar is uniformly covered with the copolymer to form a nanoscale film, the composite has stronger complexing, chelating and ion exchange capacity for heavy metal ions and other cations in the soil, and is helpful to reduce toxic substances in the soil and improve the soil environment.

The invention discloses a pollution blocking water permeable brick prepared based on biomass power plant ash and sludge-based biochar and a preparation method of the pollution blocking water permeable brick. The pollution blocking water permeable brick is prepared from the following raw materials in parts by mass: 20 to 25 parts of biomass power plant ash, 3 to 6 parts of cement, 15 to 20 parts of sludge-based biochar, 15 to 20 parts of mineral powder, 35 to 45 parts of natural zeolite, 5 to 10 parts of sand and 10 to 40 parts of clay. The biomass power plant ash is biomass power plant ash residue, and the sludge-based biochar is a municipal sludge pyrolysis product. Biomass power plant ash and sludge-based biochar are used as main brick making raw materials, and the function of intercepting pollutants of the water permeable brick is achieved. The brick making raw materials are low in price and wide in distribution, low-cost preparation of the water permeable brick is achieved, the water permeable brick has the advantages of being stable in ecology, energy-saving, environmentally friendly and capable of achieving resource circulation, and meanwhile the problems of land resource waste and environmental pollution caused by solid waste accumulation are solved.

This invention discloses a high-gloss, high-surface-energy nylon composite material, its preparation method, and its application, belonging to the field of engineering plastics technology. The nylon composite material, by mass fraction of raw materials, comprises: 45-75 parts nylon resin, 15-30 parts glass fiber, 5-15 parts maleic anhydride-grafted C9 petroleum resin, 0.5-2.3 parts composite lubricant, and 3-8 parts glass microspheres. The composite lubricant is selected from at least one of internal and external lubricants; the internal lubricant is selected from one or more of stearamide and ethylene bis-stearamide; and the external lubricant is selected from silicone powder. Grafting maleic anhydride groups into MAH-g-C9 enhances the surface energy of the material, resulting in good wetting matching between the two. Synergistically, the combination of lubricant and glass microsphere filling significantly improves the gloss and surface energy of the nylon material. This nylon material requires no pretreatment and can be directly printed.

The invention provides a recycled carbon fiber reinforced polypropylene composite material as well as a preparation method and application thereof, and the recycled carbon fiber reinforced polypropylene composite material comprises 75-90 parts of polypropylene, 10-20 parts of modified recycled carbon fiber, 0-3 parts of a compatilizer, 0.2-0.5 part of an antioxidant, 0.1-0.2 part of a light stabilizer and 0.3-1 part of a coloring agent. The modified recycled carbon fiber is obtained by sequentially carrying out supercritical treatment and silane coupling agent treatment on recycled carbon fiber. According to the invention, organic matters and oxide layers remained on the recovered carbon fibers are removed through supercritical treatment, and the surface energy of the carbon fibers is enhanced, so that the surface energy of the carbon fibers is closer to that of polypropylene, and the compatibility of the carbon fibers and the polypropylene is improved; on the other hand, the supercritical treatment can improve the surface roughness of the recycled carbon fibers, increase the surface activity of the recycled carbon fibers, enable the recycled carbon fibers to be more strongly combined with a silane coupling agent, enable the surface energy of the grafted carbon fibers to be further improved, enable the grafted carbon fibers to be more compatible with a polypropylene matrix, enable the binding power between the recycled carbon fibers and polypropylene to be enhanced, and effectively transmit stress; and the mechanical strength, rigidity and toughness of the composite material are obviously improved.

This invention discloses a self-cleaning radiative cooling coating based on biomass carbon quantum dots, its preparation method, and its application. The coating comprises a polymer film-forming resin, carbon quantum dots, and hollow glass microspheres; wherein the mass ratio of the polymer film-forming resin to the filler is 1:(0.1-0.5), and the mass ratio of the hollow glass microspheres to the carbon quantum dots is 1:(0.05-0.2). This invention synergistically enhances solar reflectivity through the photoluminescence properties of carbon quantum dots and the scattering properties of hollow glass microspheres, while simultaneously utilizing the synergistic effect of fluorinated resin and modified hollow glass microspheres to endow the coating with superhydrophobic self-cleaning function. A single layer of this coating can achieve a solar reflectivity >92%, mid-infrared emissivity >94%, and contact angle >150°, possessing both efficient daytime radiative cooling and long-lasting self-cleaning performance. It is particularly suitable for passive heat dissipation of outdoor equipment such as new energy vehicle charging piles, and features simple process, environmental friendliness, and excellent performance.

The invention belongs to the technical field of aeronautical materials, and particularly relates to a PEI modified material containing a high-temperature composite dispersion system as well as a preparation method and application of the PEI modified material. The PEI modified material containing the high-temperature composite dispersion system provided by the invention is prepared from the following raw materials: polyetherimide resin, titanium dioxide, carbon black and dispersing agents (a coupling agent and polyamide wax). The PEI modified material containing the high-temperature composite dispersion system provided by the invention can realize efficient and uniform dispersion and color regulation and control of pigments in a high-viscosity and strong-polarity system, and has excellent heat resistance, mechanical property and flame retardant property, and interior structural parts prepared from the PEI modified material meet the comprehensive requirements on light weight, attractiveness and durability in the aviation field.

The invention discloses a preparation method and device of a hair follicle-like composite microstructure. According to the method, by means of the thermal deformation performance of the memory alloy material, the electrode deformation section made of the memory alloy material goes deep into the pit formed in the surface of the cutter through laser machining, the deformation section is heated to be in a circular arc shape, and an electrochemical etching method is adopted; an electrochemical system formed by an electrode, a cutter, a power supply device and electrolyte in the pit is used for enabling the rotating electrode to etch the pit into hair follicle structures, then flocking glue doped with magnetic particles is injected into the hair follicle structures, fiber bundles are implanted into the hair follicle structures, and then the hair follicle structures are formed. And after flocking is completed, the magnetic particles in the hair follicle structures are magnetized, and then the work of preparing the hair follicle-imitating composite microstructure on the surface of the tool is completed. According to the prepared cutter surface hair follicle-imitating composite microstructure, the cutter can achieve the continuous wetting effect in the working process, the good wetting performance is achieved, and then the cutting performance of the cutter is improved.

The utility model discloses a fiber fabric production device capable of adjusting silica sol concentration, which comprises an immersion pool, a hanging rod, a fiber fabric, a water injection pipe and a glue injection pipe, the top of the immersion pool is provided with the hanging rod, the hanging rod is provided with a hook, the fiber fabric is hung on the hook, the side wall of the immersion pool is fixedly provided with the water injection pipe and the glue injection pipe, and the glue injection pipe is fixedly arranged on the side wall of the immersion pool. An electric control valve is mounted on the glue injection pipe, the glue injection pipe is fixedly connected with a water distribution pipe, the water distribution pipe is fixedly connected with a main pipe, the main pipe is connected with a glue pump, the glue pump is communicated with a glue storage box, and a detection head is fixedly mounted in the immersion pool. Water and silica sol are injected into the immersion pool through the water injection pipe and the silica sol injection pipe, the concentration of the silica sol in the pool is adjusted according to the injection proportion of the water and the silica sol, then the hanging rod on which the fiber fabric is hung is placed at the top end of the immersion pool, the fiber fabric is immersed in the silica sol mixed solution in the pool, and the silica sol mixed solution is gradually attached to the fiber fabric. The surface energy of the fiber is improved, so that the fiber has hydrophobic performance.

The invention discloses a preparation method of a polypropylene composite filler based on electrocatalytic oxidation coal gasification fine slag as a raw material, the preparation method comprises the steps of raw material treatment, system modification, material electrolytic oxidation and material post-treatment, the polypropylene composite filler comprises polypropylene resin and the polypropylene composite filler, based on the total weight of the composite material, the usage amount of the composite filler is 5-20wt%, and the usage amount of the composite filler is 5-20wt%. The raw materials comprise an environment-friendly functional auxiliary agent accounting for 0.5-5% of the total weight of the composite material, and the functional auxiliary agent is selected from one of a weather-proof agent, a halogen-free flame retardant and a bio-based antibacterial agent. The method has the advantages that the low-temperature plasma pretreatment and the composite modifier assisted electrocatalytic oxidation process are combined, a large number of active sites can be quickly and efficiently introduced on the surface of the coal gasification fine slag through the low-temperature plasma treatment, and the surface energy and the reaction activity of the coal gasification fine slag are remarkably enhanced.

This invention relates to a coating process for forming a titanium coating on PEEK material, comprising: S1, modifying the PEEK material by electron beam enhanced plasma cleaning, and bombarding the PEEK material surface with argon ions; S2, bombarding the PEEK material surface treated in S1 with metal ions, wherein charged metal ions generated by an ionization source are accelerated and bombarded on the PEEK material surface by a high negative bias voltage; S3, depositing a titanium coating on the PEEK material surface treated in S2, using titanium as the target material. This process can obtain a metal film layer with strong adhesion, dense coating, and biocompatibility on medical PEEK material. The deposited coating can maintain the low elastic modulus matching characteristics of the PEEK material surface and the porous structure of 3D printed PEEK. The deposition temperature is controlled below 100℃, which does not affect the mechanical properties of the material.