1203results about How to "Increase roughness" patented technology

The invention discloses a roughness optimization method and system for ultrasonic vibration assisted magneto-rheological deterministic polishing, and the method comprises the steps: placing an ultrasonic vibration table on a workpiece rotating shaft of a magneto-rheological machine tool, and connecting and fixing a workpiece to be machined with a clamp of the ultrasonic vibration table; the position posture of the workpiece to be machined is adjusted through a leveling mechanism and a center adjusting mechanism of the magneto-rheological machine tool, and it is ensured that the press-in position and the press-in depth of a magneto-rheological polishing ribbon formed on a polishing wheel in the magneto-rheological machining process are consistent; the viscosity and the flow of the magnetorheological polishing liquid are kept stable; detecting surface shape error data of the workpiece to be processed by the wave surface interferometer and generating a processing code; and the obtained machining code is input into a magneto-rheological machine tool, so that the magneto-rheological polishing ribbon conducts deterministic polishing on the detected workpiece to be machined based on the fixed press-in position and the press-in depth. The ultrasonic vibration assisted magneto-rheological deterministic polishing roughness optimization method aims at achieving ultrasonic vibration assisted magneto-rheological deterministic polishing roughness optimization, material removal uniformity is promoted, and the roughness of a workpiece is effectively reduced.

The invention relates to the technical field of flame-retardant modified materials, and discloses a flame-retardant modified basalt fiber, a flame-retardant modified basalt fiber reinforced PET (Polyethylene Terephthalate) material and a preparation method of the flame-retardant modified basalt fiber reinforced PET material. A halogen-free flame retardant is grafted on the surface of the basalt fiber to perform surface modification on the basalt fiber, and the halogen-free flame retardant is hydroquinone modified phenylphosphoryl dichloride. According to the technical scheme, the application of the FR-A in surface modification of the basalt fiber is creatively proposed for the first time, and by designing and optimizing the structure and connection mode of the FR-A and the basalt fiber, the material can form carbon at a relatively low temperature and is crosslinked with polymer material pyrolysis micromolecules at a high temperature to generate a carbon layer with high thermal stability; the candlewick effect inhibiting effect is good, the flame retardant property of the composite material can be further enhanced, and the mechanical property is considered.

The invention discloses a magnesium-based cobalt precipitation agent and a preparation method and application thereof, and relates to the technical field of composite materials. The method comprises the following steps: performing calcination dissociation, enhanced leaching, carbonization separation, efficient pyrolysis, solid-liquid separation, drying and calcination on first magnesium ore to obtain active magnesium oxide; the second magnesium ore is subjected to calcination dissociation, hydration impurity removal, solid-liquid separation and low-temperature calcination, and then high-purity magnesium oxide is obtained; performing series-parallel modification on active magnesium oxide and high-purity magnesium oxide to obtain a magnesium-based cobalt precipitation agent; the mass ratio of the active magnesium oxide to the high-purity magnesium oxide is 1: (2-10), the modifier is quaternary ammonium salt organic powder, and the addition amount of the modifier is 0.02-1% of the total mass of the magnesium oxide. The magnesium-based cobalt precipitation agent prepared through the method is high in activity, has the advantages of being high in efficiency, low in price, low in unit consumption, environmentally friendly and the like in the aspect of nickel and cobalt precipitation through copper-cobalt ore and laterite-nickel ore wet smelting, and can greatly reduce the material cost in the nickel cobalt hydroxide production process.

The invention relates to an oil sprayer body and a machining method for a stepped deep hole and a spherical bottom face of the oil sprayer body. The machining method comprises the following steps: pre-drilling: fixing the oil sprayer body on a machining center, and drilling a blind hole by adopting a drill bit; pre-boring: boring a blind hole; drilling a deep hole: taking the blind hole as a guide, adopting a gun drill to enter a second preset depth, starting inner cooling, increasing the rotating speed and the feeding amount of the gun drill, drilling to a third preset depth, retracting the tool, closing the inner cooling, and withdrawing the gun drill; forming counter bores: processing spherical bottom surfaces at the bottoms of the blind holes by adopting a spherical counter bit by taking the blind holes as guidance; hole expanding and boring are conducted on the hole, and the depth is made to be the fifth preset depth; and chambering: chambering with a gun drill by taking the hole as a guide to obtain the fuel injector body. The invention further provides the oil sprayer body obtained through the machining method. The machining center solves the problems that when an existing machining center is used for machining a stepped deep hole and a spherical bottom face of an oil injector body, the coaxiality is poor, and the roughness cannot meet the product requirement.

The invention discloses a multifunctional composite hydrophobic membrane and a preparation method thereof, in the hydrophobic membrane, nano silicon dioxide, hydroxyl multi-walled carbon nanotubes and perfluorooctyl ethyl acrylate are polymerized to obtain a modified composite material, the modified composite material is added into a polyvinylidene fluoride-hexafluoropropylene copolymer, fibers are formed through an electrostatic spinning method, the fibers are deposited on a polyester net base lining, and the multifunctional composite hydrophobic membrane is prepared. Nano-silica and hydroxyl multi-walled carbon nanotubes are modified, agglomeration is effectively avoided, the hydrophobic membrane has good mechanical strength and toughness, and microcosmic multi-dimensional roughness of the surface of the membrane can be achieved by introducing an inorganic-organic nano hybrid material. Fluorine atoms in a perfluorooctyl ethyl acrylate structure have relatively low surface energy, so that the surface energy of the film can be remarkably reduced, the surface of the film has low surface energy and a rough structure, and the film is high in hydrophobicity and good in chemical stability.

The invention relates to a basalt high-performance fiber composite material and a manufacturing method thereof.The composite material is obtained by treating, cooling and curing basalt fibers, specifically, the basalt fibers are grafted with boron nitride and multi-walled carbon nanotubes and then treated with a resin material, and then various properties of the fibers are improved; the fiber composite material is prepared from the following components in parts by weight: 5-10 parts of basalt fiber, 77-94 parts of boron nitride, 68-75 parts of multiwalled carbon nanotubes and 87-105 parts of maleic anhydride polybutadiene resin. According to the manufacturing method of the basalt high-performance fiber composite material, the basalt fiber composite material manufactured by the method is excellent in tensile property, impact resistance, wear resistance and the like.

The invention discloses a preparation method and application of a polyamide composite nanofiltration membrane containing a graphdiyne middle layer, and belongs to the technical field of membrane separation. Comprising a porous substrate, a graphdiyne middle layer and a polyamide layer. The graphdiyne is selected from graphdiyne, graphdiyne, hydrogen-substituted graphdiyne and other graphdiyne derivatives. The specific preparation method comprises the following steps: carrying out suction filtration on graphdiyne dispersion liquid to a porous substrate, respectively dipping the graphdiyne dispersion liquid in a water phase and an oil phase, carrying out interfacial polymerization to generate a polyamide membrane, and finally, drying the membrane in a constant-temperature and constant-humidity drying oven to obtain the polyamide composite nanofiltration membrane containing the graphdiyne middle layer. The preparation method disclosed by the invention is simple and efficient, and the prepared composite membrane can effectively intercept divalent salt and organic matters in water and has excellent water permeability, ion separation and antibiotic desalination effects.

The invention discloses a carbon fiber composite material as well as a preparation method and application thereof. Based on the structural design of the liquid crystal polymer with different dimensions, a liquid crystal polymer molecule assembly layer is constructed on the surface of the carbon fiber, the roughness and surface activity of the surface of the carbon fiber are improved, and meanwhile, the interface performance of the composite material is improved through the efficient redirectionality of the liquid crystal polymer under the microcosmic mesocrystal domain structure and the load. Besides, based on the high orientation of the liquid crystal polymer in the interface phase of the composite material, a multi-dimensional heat conduction network is constructed, the dominant vibration mode of the carbon fiber and the resin matrix in the phonon heat transfer process is effectively coupled, the possibility of carrier phonon scattering at the interface is reduced, the interface thermal resistance is greatly reduced, and the thermal conductivity of the composite material is improved. Therefore, the heat-conducting property of the composite material is improved.

The invention discloses a method for catalytically synthesizing lactide by using a kaolin-based catalyst, which comprises the following steps: (1) preparing oligomeric lactic acid: carrying out lactic acid dehydration polymerization reaction by using L-lactic acid or D-lactic acid or DL-lactic acid as a raw material to obtain oligomeric lactic acid of which the weight-average molecular mass of an oligomer is 1000-3000Da; and (2) depolymerizing the oligomeric lactic acid: carrying out depolymerization reaction on the oligomeric lactic acid obtained in the step (1) under the action of a kaolin-based catalyst to obtain crude lactide. The raw materials of the catalyst are easy to obtain, the cost is low, the regeneration process is simple, the reaction temperature of depolymerization cyclization is low, the reaction time is short, and the cost can be greatly reduced in industrial production.

The invention relates to a vehicle abnormal position correction method, system and device based on road network position information and a medium, and the method comprises the steps: collecting and processing road network map information, tracking a vehicle position, and storing the vehicle position as a historical position point set; when the number of the historical position points exceeds a set threshold value, whether the vehicle is in an abnormal deviation state or not is judged according to the scene where the vehicle is located and the relative position relation between the vehicle and the road and road section range; if the vehicle is in the abnormal deviation state, acquiring a latest position point from a historical position point set, and predicting and covering the position of the vehicle; if not, front and back position abnormal state identification is carried out; and when the front and back positions are identified to be abnormal, obtaining the latest position point from the historical position point set, and predicting and covering the position of the vehicle. According to the invention, by fully utilizing and fusing a plurality of data sources, designing an innovative judgment rule and adopting a refined exception handling mode, the accuracy of vehicle position judgment and the fineness of exception handling are remarkably improved.

The invention provides a device and a method for polishing and repairing a blisk of an aero-engine by using composite laser aiming at the common problems of cracks and surface roughness in the machining process of the blisk of the aero-engine, and the device comprises a five-axis moving platform system, a 1064nm infrared laser generator system and an optical ranging system; according to the method, a six-axis composite laser polishing and repairing device is utilized, a high-precision multi-wavelength and multi-frequency-band laser scanning device is carried, continuous polishing and repairing serve as a main body, and a five-axis moving platform system, a 1064nm infrared laser generator system, an optical distance measuring device and an ultrasonic scanning and surface analysis technology are combined. Honeycomb-shaped cracks left on the surface of the blade of the blade disc through milling are successfully repaired, and the surface quality of the blade disc is remarkably improved. According to the device and method, the repairing effect is excellent, the polishing efficiency is remarkably improved, and the time needed by traditional manual polishing can be greatly shortened. In addition, the surface roughness of the bladed disc repaired through the composite laser polishing repairing method is remarkably reduced, and the influence on the flowing property of working fluid is effectively controlled. Therefore, the method has important engineering application prospects and is expected to bring remarkable method progress and economic benefits in the field of aero-engine manufacturing.

The invention relates to a modeling method for predicting surface roughness of silicon modified silicon carbide processed by a small grinding head, which relates to the technical field of optical manufacturing and comprises the following steps of: i, analyzing pressure intensity distribution between a grinding disc and a workpiece; step ii, calculating the press-in depth of the grinding material according to the maximum value of the pressure intensity distribution; and iii, establishing a surface roughness physical model by combining the motion trail length of the grinding material and the press-in depth of the grinding material. The modeling method for predicting the surface roughness of the silicon modified silicon carbide processed by the small grinding head is not limited to prediction of a roughness physical model of a silicon modified silicon carbide material polished by the small grinding head of a robot; and the method is also suitable for predicting the roughness physical model of metal or hard and brittle materials processed by equipment such as other numerical control processing machine tools and guiding actual processing.

The invention relates to the technical field of seawater desalination, in particular to a seawater desalination reverse osmosis membrane, a preparation method and application. The seawater desalination reverse osmosis membrane is prepared by the preparation method. The preparation method comprises the following steps: immersing the prepared support layer into a water phase solution, and then taking out the support layer adsorbing the water phase solution; immersing the support layer adsorbing the water phase solution into a first oil phase solution, and forming a primary reverse osmosis membrane through a first interfacial polymerization reaction; then, taking out the primary reverse osmosis membrane, and carrying out first drying treatment under a steam condition; and immersing the primary reverse osmosis membrane into a second oil phase solution, and carrying out a second interfacial polymerization reaction to form the seawater desalination reverse osmosis membrane. The application refers to the application of the reverse osmosis membrane for seawater desalination in the aspects of reclaimed water reuse, seawater desalination and brackish water desalination. According to the invention, the seawater desalination reverse osmosis membrane which simultaneously meets high desalination rate and high water flux can be prepared.

The embodiment of the invention relates to the field of photovoltaic technology, and provides a solar cell and a preparation method thereof, the solar cell comprises a substrate, the substrate is provided with a first surface and a second surface which are opposite, at least one of the first surface and the second surface is provided with a suede, the suede is composed of a plurality of pyramid structures, and the side wall of at least part of the pyramid structures is provided with a wrinkle part; the wrinkle part is composed of a plurality of scaly protrusions, in the direction from the top of the pyramid structure to the bottom of the pyramid structure, the length of the wrinkle part is a first length, the length of the side wall of the pyramid structure is a second length, and the ratio of the first length to the second length is larger than or equal to 0.5. According to the solar cell and the preparation method thereof provided by the embodiment of the invention, the light reflectivity of the solar cell is at least reduced, so that the light conversion efficiency of the solar cell is improved.

The invention provides an automatic production line and method for producing enameled wires. The automatic production line comprises a pay-off unit, an annealing box, a painting unit, a baking oven, a cooling unit, a lubricating unit and a take-up unit. The painting unit comprises a painting shell arranged on the ground, a transverse plate is installed in the painting shell, a plurality of painting pipes are arranged on the transverse plate, flowing pipes are arranged on the painting pipes, a circulating pump and a filtering shell are arranged on the flowing pipes, and a connecting plate is arranged in the painting shell. A wire bypasses the guide wheel at the bottom, upwards penetrates through the painting pipe from the bottom, then is wound on the guide wheel at the top and is output outwards; a rotary driving piece c drives one chain wheel b to rotate, a plurality of rotary sleeves are driven to rotate through a chain b, a rough surface is driven to rub the outer surface wall of the wire, the roughness of the outer surface wall of the wire is increased, and the outer side of the wire is coated with paint liquid in a painting pipe; and the paint liquid smearing effect is enhanced by increasing the roughness of the outer surface wall of the wire.

The invention discloses a carbon fiber hard felt surface anti-oxidation coating and a preparation method thereof, and the carbon fiber hard felt with an excellent anti-oxidation coating on the surface is prepared by performing three times of coating curing and one time of high-temperature graphitization on a carbon fiber hard felt matrix. Compared with the prior art, the high thermal insulation performance and the excellent surface coating performance of the hard carbon fiber thermal insulation felt are guaranteed, meanwhile, the use frequency of a high-energy-consumption equipment graphitization furnace is reduced, the coating efficiency and the surface coating performance are improved, the whole product period is shortened, and the production cost is reduced.

The invention discloses a windproof and breathable composite fabric and application thereof. The windproof and breathable composite fabric is used for solving the technical problem that in the prior art, the windproof and breathable performance, the wear-resistant and antistatic performance and the washing resistance of a polyester fiber fabric need to be further improved. The preparation method comprises the following steps: putting a gray fabric into a pretreatment solution for pretreatment to obtain a pretreated gray fabric, taking modified quaternary ammonium salt as a cross-linking agent, promoting cross-linking of a polyurethane prepolymer co-blocked by modified polysiloxane and polyethylene glycol, preparing epoxy group-terminated modified polyurethane, and carrying out heat treatment to obtain the pretreated gray fabric. The modified polyurethane and the tetrabutyl titanate are dispersed and mixed in the alkaline emulsion, and the prepared finishing liquid is used for padding and modifying the pretreated gray fabric, so that the windproof and moisture-permeable performance of the composite fabric is effectively improved, and the antistatic performance, wear resistance and pilling resistance of the composite fabric are also improved.

The novel geomembrane double-track sweat soldering process comprises the steps that the surface of a reservoir bottom is subjected to leveling and roughening treatment, so that the roughness depth of the surface of the reservoir bottom is 3-5 mm; cutting the geomembrane into proper sizes, numbering and recording the geomembrane piece by piece, and pressing and covering the exposed edge of the geomembrane through a sand bag; the TPO geomembrane, the novel geomembrane and the HDPE geomembrane are in lap joint in sequence in a staggered mode and welded through a double-track automatic hot melting welding machine, and the edges of the adjacent geomembranes are fused; marking the detected defects on the geomembrane, and arranging repair until the retest is qualified; the novel geomembrane comprises a base material layer and an anti-skid layer, the lower surface of the base material layer is coated with the anti-skid layer, and the thickness ratio of the base material layer to the anti-skid layer is 1: (0.1-0.3). The frosted surface of the novel geomembrane can be tightly attached to the rough surface of the reservoir bottom, the frosted surface and the rough surface are not prone to relative sliding, the service life of the geomembrane is prolonged, and the engineering anti-seepage requirement is met.

The utility model belongs to the technical field of milling cutters, and discloses a carbon fiber drilling and milling cutter which comprises a cutter handle, a blade part and a tip part are arranged at the front end of the cutter handle, the blade part comprises a plurality of cutting blades arranged at intervals in the circumferential direction of the cutter handle, and a chip groove is formed between every two adjacent cutting blades. By arranging the blade part and the tip part and arranging the cutting edges and the chip grooves on the blade part, carbon fiber wire harnesses in a carbon fiber plate can be cut off more easily in the machining process through the cutting edges arranged at intervals, carbon fiber chips obtained after cutting can be discharged from the chip grooves, and therefore better hole quality can be obtained; and the device can also be used for side milling of a plate wall, and better planeness and roughness are achieved on the side face.

The invention relates to the technical field of batteries, in particular to a single battery and a battery pack. The battery cell provided by the embodiment of the invention comprises a shell, a first electrode terminal, a first electrode assembly and a first tab part, the shell is used for accommodating the first electrode assembly, and the shell is provided with a first wall; the first electrode terminal is arranged on the first wall; the first tab part comprises at least two first tab pieces, the first tab pieces extend out from at least one end of the first electrode assembly, and the first tab part is electrically connected with the first electrode terminal; a first welding mark and a second welding mark are arranged on the first tab part, the orthographic projection of the second welding mark falls into the orthographic projection of the first welding mark along the projection on the large surface of the first tab part, and the second welding mark is used for welding the first electrode terminal and the first tab part; wherein the roughness of the second welding mark is greater than that of the first welding mark. The technical effect of improving the welding strength between the tab and the electrode terminal is achieved.

The invention belongs to the technical field of functional material preparation and application, and particularly relates to a long alkyl chain covalent organic polymer as well as a preparation method and application thereof in oil-water separation. The chemical structure of the long alkyl chain covalent organic polymer is shown as a formula (I), the long alkyl chain covalent organic polymer is successfully loaded on melamine sponge through an impregnation method, and the prepared modified sponge LNU-33 at MS has good hydrophobic and oleophylic characteristics and can be used for separating a mixture of an organic solvent and water. The synthetic process is simple, the oil-water separation efficiency is higher, and the oil-water separation catalyst has a good application prospect in the field of oil-water separation. # imgabs0 #

The invention discloses a preparation method of photo-thermal super-hydrophobic flame-retardant polyurethane sponge for oil-water separation, which comprises the following steps: introducing a polydopamine (PDA) / MXene material into polyurethane foam through a simple one-step foaming method, then introducing a nitrogen-phosphorus-silicon hybrid flame retardant N3P3 [NH (CH2) 3Si (OEt) 3] 6 through dip-coating and a sol-gel method, and finally preparing the photo-thermal super-hydrophobic flame-retardant polyurethane sponge for oil-water separation. The preparation method of the flame-retardant photo-thermal super-hydrophobic polyurethane sponge for oil-water separation is obtained. The polyurethane sponge prepared by the method not only has stable super-hydrophobicity, excellent photo-thermal conversion performance and excellent adsorption capacity to oil products, but also has better thermal stability.

The paper diaper comprises a skin-friendly layer, a urine absorption product and a liquid-tight bottom layer which are sequentially arranged in a stacked mode, a waistline leakage-proof structure is arranged between the skin-friendly layer and the liquid-tight bottom layer, and the urine absorption product is arranged in an interlayer area between the skin-friendly layer and the waistline leakage-proof structure. The auxiliary core body and the main core body in the urine absorption product contain super water-absorbent resin in different proportions, the layered design is beneficial to rapid absorption of urine and prevention of back seepage, the leakage-proof performance is improved, the liquid-leakage-proof middle layer located at the bottom of the urine absorption product can isolate the main core body from the liquid storage core body, and the leakage-proof performance of the urine absorption product is improved. The main core body can bear a large amount of urine flowing out suddenly, so that the liquid storage core body cannot be polluted and lose efficacy, when the urine absorption product loses efficacy in side leakage prevention, solute concentration between the flow guide core body and the liquid storage core body is not uniform, surface tension changes accordingly, and due to the fact that the surface tension of liquid with different concentrations is different, the urine absorption product cannot be polluted. This may cause the liquid to flow along areas with lower surface tension.

The invention relates to the technical field of heat insulation materials, in particular to a ceramic aerogel coating and a preparation method thereof.The ceramic aerogel coating comprises a ceramic anti-corrosion bottom layer, a middle coating and a transparent surface layer, and the preparation method of the ceramic aerogel coating comprises the steps that firstly, sand blasting treatment is conducted on a metal base material; step II, spraying a ceramic anti-corrosion primer, and drying; iII, preparing a floating coat base material; iV, spraying a floating coat base material, and sealing and baking; v, spraying a floating coat fabric, and sealing and baking; step VI, polishing the coating; step VII, spraying transparent finish paint after polishing, and sealing and drying; and step VIII, after unified inspection is completed, finish paint is sprayed, sealing baking is conducted for thorough drying, and then the ceramic aerogel coating is obtained, the prepared ceramic aerogel coating is good in adhesiveness, excellent in acid and alkali resistance, not prone to cracking and peeling, capable of protecting metal for a long time, low in heat conductivity coefficient and high in hardness, and the problems that an existing aerogel coating is high in brittleness, weather resistance and hardness and not prone to cracking and peeling are solved. And the mechanical performance is low.

The invention discloses a side-flow type electrolytic machining device and method for sealing a casing cavity, an electrolytic machining machine tool comprises a machine tool rotary table and a machine tool spindle, the electrolytic machining device comprises a clamping assembly, a clamping assembly, a clamping assembly and a clamping assembly, the clamping assembly is used for clamping a casing workpiece and fixing the casing workpiece to the machine tool rotary table, and the machine tool rotary table is connected with the positive electrode of a power source; the cathode assembly is connected with the machine tool spindle and arranged on one side of the cartridge receiver in the radial direction of the cartridge receiver so as to form a machining gap with the outer surface of the cartridge receiver, and the machine tool spindle is connected with the negative electrode of the power source; the sealing assembly comprises a sealing sleeve and a pressing mechanism, the sealing sleeve is provided with an inner cavity, a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are located on the two sides of the sealing assembly respectively and communicate with the inner cavity, and the sealing assembly is arranged on the cathode assembly in a sleeving mode so that the machining end of the cathode assembly can be located in the inner cavity; the pressing mechanism is used for enabling the sealing assembly to be pressed and sealed on the outer surface of the casing so as to seal the inner cavity, and the liquid inlet is used for introducing electrolyte to flow through the machining gap and be discharged through the liquid outlet.

The invention discloses polyurethane resin with a super-hydrophobic surface and a preparation method of the polyurethane resin, and belongs to the technical field of modified polyurethane materials. According to the invention, 2, 2 '-diallyl bisphenol A and a fluorine-containing thiol monomer react to introduce a fluorine-containing carbon chain, and then fluorinated modified 2, 2'-diallyl bisphenol A and tetramethoxysilane are used for treating nano zinc oxide, so that the content of active oxygen groups is reduced, a siloxane network structure is formed, the action with water molecules is reduced, and the hydrophobicity is improved. Secondly, the 2, 2 '-diallyl bisphenol A reacts with amino propyl isobutyl POSS to generate a benzoxazine structure, the POSS structure is introduced, the nano-size effect of the benzoxazine structure fills limited movement between molecular chains, a cage-shaped structure serves as a cross-linking point, the mechanical property is improved, and hydrophobicity is achieved. When polyurethane is prepared, 3, 3-bis (hydroxymethyl) azetidine and a benzoxazine structure are subjected to ring opening crosslinking, bonding, dispersity and stability of fluorinated modified nanoparticles and a matrix are enhanced, a complex network structure is formed, the surface roughness is increased, the water contact area is reduced, and super-hydrophobicity is achieved.

The invention belongs to the field of personal care, and particularly relates to a glycoside derivative flexible liposome and a preparation method and application thereof, the glycoside derivative flexible liposome comprises a main shell material, a humectant, a wrapped raw material, an auxiliary shell material, a preservative and a solvent; the main shell material is phosphatidylcholine, and the auxiliary shell material is polyquaternium-51; the preservative is any one or more of 1, 2-hexanediol, p-hydroxyacetophenone, methylparaben, phenoxyethanol and caprylyl glycol; the moisturizing agent is butanediol; the wrapped raw material is hydroxypropyl tetrahydrofurantriol; the solvent is deionized water. According to the invention, the permeability and penetration depth of the glassine and the concentration of the glassine at a target position are improved by utilizing a flexible liposome wrapping technology, the bioavailability of the glassine is improved, and the addition amount is reduced under the condition of realizing the same tightening and anti-wrinkle effects, so that the cost is reduced.

The invention discloses a ZIF-7-OH surface modified polysulfone composite oil-water separation membrane as well as a preparation method and application thereof. Through simple blending and non-solvent induced phase inversion, the method comprises the following specific steps: firstly, synthesizing a hydrophobic polymer through free radical polymerization, and then blending the hydrophobic polymer with a polysulfone matrix to form a membrane casting solution; secondly, hydroxylated ZIF-7 (ZIF-7-OH) particles are fixed to the surface of the membrane through a non-solvent induced phase inversion method; wherein due to the introduction of hydroxyl, particles and hydrophobic polymers with siloxane groups can be coupled and fixed on the membrane, so that the stability of the particles on the surface of the membrane is improved, and finally, the super-hydrophobic polysulfone composite membrane for efficient oil-water emulsion separation is obtained. The ZIF-7 particles are creatively hydroxylated and fixed to the surface of the membrane through a coupling effect, and the micro-nano rough structure and the low-surface-energy substance have a synergistic effect, so that the membrane is endowed with super-hydrophobicity and excellent self-cleaning performance, and the composite membrane has efficient oil-water emulsion separation capacity.

The invention discloses a polyvinylidene fluoride (PVDF) super-hydrophobic membrane and a preparation method thereof.The preparation method comprises the steps that firstly, methyl sodium silicate, perfluorodecyl triethoxysilane (PFDTES) and tetraethoxysilane (TEOS) serve as catalysts / reactants, fluorinated hydrophobic modification is conducted on hydrophilic silicon dioxide (SiO2) nanoparticles, a nanoparticle non-solvent composite spraying synergistic phase inversion method is provided, and the polyvinylidene fluoride (PVDF) super-hydrophobic membrane is prepared. F-SiO2 is successfully introduced into the surface of the membrane, a multi-scale micro-nano structure is formed on the surface of the membrane, and the hydrophobicity and the surface roughness of the membrane are greatly improved. The prepared membrane is applied to vacuum membrane distillation testing, the flux and the salt rejection rate are very excellent, the maximum salt rejection rate reaches 99.99%, the flux is kept at 18.21 kg.m <-2 >. H <-1 > or above, the performance of the super-hydrophobic membrane is superior to that of a base membrane and a membrane prepared through a traditional non-solvent induced phase separation method, and the super-hydrophobic membrane has good anti-pollution performance and is very good in recovery effect after being washed with water.

The invention provides modified porous ecological concrete. The modified porous ecological concrete is prepared from the following components: 180 to 220 parts of coarse aggregate, 45 to 55 parts of sulphoaluminate cement, 5 to 10 parts of modified diatomite, 4 to 8 parts of modified porous ceramsite, 5 to 10 parts of modified fiber, 2 to 4 parts of water reducing agent, 1 to 3 parts of retarder and 20 to 40 parts of water. The modified porous ecological concrete with high strength and low alkalinity is obtained by taking coarse aggregate and sulphoaluminate cement as main bodies and adding modified diatomite, modified porous ceramsite, modified fiber components and the like, and when the modified porous ecological concrete is applied to slope protection engineering, the mechanical strength of the concrete and the growth effect of planted grass are good.