32results about How to "Long-term protection" patented technology

The invention discloses a self-repairing warp-knitted interval high-strength geotextile and a preparation method. The self-repairing warp-knitted interval high-strength geotextile is composed of a surface layer warp-knitted high-strength geotextile body, an interval yarn layer and a surface layer warp-knitted high-strength geotextile body which are sequentially arranged from bottom to top. The surface layer warp-knitted high-strength geotextile takes high-strength synthetic fibers as raw materials; the interval yarn layer takes covering yarns as interval yarn fibers and is connected with the warp-knitted high-strength geotextile of the upper surface layer and the warp-knitted high-strength geotextile of the lower surface layer; the covering yarn is composed of an inner high-strength core yarn fiber and an outer bio-fiber wrapping layer. The high-strength geotextile has a simple and efficient composition structure, and the surface layer high-strength geotextile provides higher mechanical strength and can effectively resist the damage of various dynamic and static loads in a use environment; the special structure of the spacer fabric enables the self-repairing high-strength composite geotextile to have excellent water permeability and reverse filtration functions, permeation erosion can be effectively resisted, and the biological curing effect can deeply play a role in filling soil.

The invention relates to the field of dental care, in particular to a tooth polishing agent with an antibacterial effect and a preparation method thereof, and the tooth polishing agent is prepared from the following raw materials: silicon dioxide, sodium carboxymethyl cellulose, xanthan gum, propylene glycol, cocamidopropyl betaine, glycerol, modified nano-zinc oxide, modified nano-hydroxyapatite, glucolactone, stevioside and sodium benzoate. The modified nano-zinc oxide, the modified nano-hydroxyapatite and the glucolactone play a role through a synergistic effect, the modified nano-hydroxyapatite is used as a carrier to adsorb chemical substances such as the modified nano-zinc oxide and the like to form rod-shaped nano microcapsules, and a compact and uniform protective layer is formed on the tooth surface through a nano-size effect; the glucolactone promotes slow release of the rod-shaped nano microcapsules, and the glucolactone, the rod-shaped nano microcapsules and the glucolactone form a dynamic balance system, so that the antibacterial and remineralization effects are continuously exerted, the tooth structure is strengthened, the pH value is adjusted, the oral environment is maintained, and comprehensive and long-acting protection is provided for oral health.

The invention provides a W-type ferrite and cluster MoS2 wave-absorbing anti-corrosion material and a preparation method thereof, and belongs to the field of wave-absorbing anti-corrosion materials.The method comprises the steps that metal nitrate and water are mixed, citric acid monohydrate and ammonia water are added to adjust the pH value, oil bath is conducted to a gel state, heat treatment is conducted after drying, and W-type ferrite powder is obtained; the preparation method comprises the following steps: mixing W-type ferrite powder, hexadecyl trimethyl ammonium bromide and water, and stirring; adding ammonium molybdate tetrahydrate and thioacetamide, stirring, and pouring into a hydrothermal kettle for hydrothermal reaction; after the reaction is completed, centrifuging, washing and drying to obtain W-type ferrite coated with cluster MoS2; and mixing and co-curing the W-type ferrite coated with the cluster MoS2, epoxy resin and a curing agent to obtain the W-type ferrite and cluster MoS2 wave-absorbing anticorrosive material. The wave-absorbing performance of pure resin is improved, and meanwhile the anti-corrosion performance in the severe environment is enhanced.

The utility model relates to the technical field of steel anticorrosive coating spraying technology, and disclose a spraying device for high-strength steel anticorrosive coating, including frame, the bottom fixed assembly of frame has the moving wheel, the outer wall fixed mounting of frame has the controller, the top fixed mounting of frame has the platform, the top of platform is equipped with steel limiting assembly and spraying assembly respectively, the top fixed assembly of platform has the struts. By placing the steel in the inner wall of the placing table, at this time, the controller can emit signals, so that the air pump two can be started, so that the air pump two can be adsorbed by the adsorption gas outlet to the steel placed on the top of the placing table, the steel can be fixedly installed on the top of the placing table, so that the steel can be conveniently anticorrosive coating spraying work, and when the servo motor works, the placing table can be driven to rotate, so that the steel placed on the top of the placing table can be sprayed all-round.

The invention relates to a two-component epoxy low-surface-energy primer-topcoat paint which is composed of an agent A and an agent B. The agent A comprises the following components in parts by weight: 150 parts of epoxy resin; 50 to 100 parts of a low surface energy filler; 50-100 parts by volume of a filler; 10 to 20 parts of pigment; 1 to 5 parts of a polymethyl alkyl siloxane defoaming agent; 3-10 parts of a low surface energy auxiliary agent; 30-60 parts of an organic solvent; the agent B is an amine epoxy curing agent; when in use, the mixing weight ratio of the agent A to the agent B is 200: (10-20); in conclusion, the two-component epoxy low-surface-energy primer-topcoat paint provided by the invention can solve the problem that the adhesive force of a traditional coating is reduced due to enrichment of low-surface-energy components on a surface layer through epoxy resin compounding, gradient distribution design of the low-surface-energy components and synergistic filling of multi-stage fillers; the double functions of corrosion prevention and low surface energy can be achieved through single-pass coating, and the coating is suitable for high-altitude, offshore and other complex working conditions.

The invention provides a cold region pile foundation freeze injury protection method which comprises the following steps: stacking a plurality of self-expanding fillers in a pit slot in which a pile foundation is arranged, and covering the pit slot with a soil body after the self-expanding fillers are stacked; each self-expansion filler comprises a flexible fabric bag and a soil body in the bag, the flexible fabric bag is filled with the soil body in the bag, each self-expansion filler comprises a flexible section and a self-expansion section, the placing directions of every two adjacent self-expansion fillers are opposite during filling, water absorption mechanisms are arranged on the inner side and the outer side of each self-expansion section respectively, and a plastic plate is arranged on the inner side of each self-expansion section. When the soil body is frozen, the soil body in the self-expansion filler expands, under the constraint effect of the flexible fabric bag, the expansion has a limit and is mainly subjected to horizontal expansion, under the guidance of the inner side plastic plate, the two self-expansion sections move towards the two sides respectively, and the contact effect between the self-expansion sections and the pile foundation is enhanced. On the premise that side friction resistance is not reduced, inhibition of the pile foundation freezing pulling phenomenon is achieved, and the influence of the extreme environment on the pile foundation operation stability is reduced.

The invention discloses a foundation top surface frost heaving crack treatment device and a foundation top surface detection and repair method.The inhibition structure comprises multiple layers of annular units distributed in the longitudinal direction of a concrete body, and each layer of annular unit is provided with multiple annular pipes distributed in a concentric circle array; all the annular pipes in the same layer of annular units are communicated with one another through first communicating pipes, and every two adjacent layers of annular units are communicated with one another through second communicating pipes. The detecting and repairing method comprises the steps that after a restraining structure is arranged and formed, concrete is poured, so that the concrete wraps the restraining structure, and a concrete body is obtained; a through hole penetrating into the restraining structure is formed in the surface of the concrete body; and pressure data in the inhibition structure is obtained, a hydrophobic material is poured into the inhibition structure after it is determined that cracks exist in the inhibition structure, and the cracks in the inhibition structure are repaired through the hydrophobic material. According to the invention, crack development inhibition and rapid crack repair of the top surface of the power transmission tower foundation in a high cold environment are realized.

This invention discloses a large-area photo-chargeable aqueous zinc-ion battery, its preparation method, and its application. The method includes the following steps: Two pieces of glass with a transparent conductive layer coated on one side are taken. A positive electrode material is placed on the coated layer of one of the glass pieces. A glass fiber separator and a negative electrode material are sequentially covered on top of the positive electrode material. The other glass piece is then placed on top of the negative electrode material with its coated layer facing down. The positions of the two glass pieces are adjusted so that they are stacked alternately. Pressure is applied to the resulting stacked structure, and three sides are sealed with hot melt adhesive. After the hot melt adhesive has cured, electrolyte is injected into the unsealed side, and then this side is sealed again. The negative electrode of a diode is connected to the glass on the positive electrode side of the battery, and the positive electrode of the diode is connected to the glass on the negative electrode side of the battery, thus obtaining a large-area photo-chargeable aqueous zinc-ion battery. The battery of this invention has the advantages of high light utilization, stable charging, and low loss.

The application discloses oily gel microbeads, a preparation method thereof, skin care products and application. The oily gel microbeads comprise polar oil 60-93%, oil phase gel 5-30%, low freezing point oil 2.5-20% and semi-solid oil 0.1-5%, % is the mass percentage of each component in the total mass of the gel microbeads; the polar oil is one or more of glyceryl tri(ethylhexanoate), white pool seed oil, isononyl isononanoate, dicaprylyl carbonate, diethylhexyl carbonate, C12-15 alcohol benzoate, isopropyl myristate, ethylhexyl stearate, ethylhexyl palmitate, castor seed oil, wheat germ oil, sunflower seed oil, wild soybean oil and coconut oil; the freezing point of the low freezing point oil is lower than-65 DEG C. The oily gel microbeads prepared by the application have good low-temperature stability, are spherical in shape, have good uniformity, are easy to spread and absorb, have strong skin adhesion, and have strong moisturizing and repairing functions.

The application discloses a Ce-MOF / basalt fiber heterojunction, anticorrosive paint and a preparation method and application thereof. The preparation method of the Ce-MOF / basalt fiber heterojunction comprises the following steps: pretreating basalt fiber, assembling Ce particles, and preparing the basalt fiber with the surface assembled with the Ce particles; reacting the basalt fiber with the surface assembled with the Ce particles with an organic ligand, and preparing the basalt fiber with the surface in-situ grown with Ce-MOF; and loading a fluorescent indicator on the surface of the basalt fiber with the surface in-situ grown with the Ce-MOF, and preparing the Ce-MOF / basalt fiber heterojunction. In the application, the Ce-MOF is used to improve the interface bonding between the fiber and the epoxy, the barrier property and the repairing property, the fluorescent indicator is used to produce a fluorescent response to the local pH change caused by corrosion or damage, early damage of the coating is visualized and early warning is realized, and the application is suitable for the corrosion protection of metals in the marine high-salt, high-humidity, erosion and other multi-factor coupling environments.

The invention discloses a strong-acid-resistant environment-friendly coating material for buildings as well as a preparation method and application of the strong-acid-resistant environment-friendly coating material. The coating material consists of the following raw materials in parts by weight: 5-20 parts of water glass, 5-10 parts of silicon dioxide, 5-10 parts of kaolin, 20-40 parts of anhydrous calcium sulfate, 20-40 parts of aluminum triphosphate, 1-5 parts of tantalum oxide, 1-5 parts of yttria-stabilized zirconia, 1-5 parts of boric oxide, 1-5 parts of zinc oxide, 1-5 parts of calcium carbonate, 20-40 parts of an adhesive, 2-8 parts of a curing agent and 1-2 parts of a defoaming agent. The preparation method comprises the following steps: mixing the solid-phase raw materials in proportion, carrying out ball milling for 60-720 minutes at the ball milling speed of 100-800 r / min by taking alcohol and water as wet milling liquid, taking out, drying for 36-48 hours, sieving with a 200-mesh sieve to obtain solid-phase powder, putting the solid-phase powder into a beaker, mixing with the water glass, slowly adding a mixture of the adhesive, the curing agent and the defoaming agent, and magnetically stirring to obtain the acid-resistant coating paint for the building. The coating disclosed by the invention is simple in preparation method, remarkable in long-acting protection effect in an acid environment and suitable for popularization and application.

The invention discloses an ultra-thick high-temperature-resistant and wear-resistant cladding layer on the surface of a hot mold and a preparation method and application thereof.The preparation method of the ultra-thick high-temperature-resistant and wear-resistant cladding layer on the surface of the hot mold comprises the following steps that S1, cladding layer mixed powder is prepared, and cobalt-based alloy powder comprises, by mass, 50%-60% of Co, 30%-35% of Cr, 1%-3% of Fe, 1%-2% of Si, 1%-3% of Ni, 0.2% of Mn, 0.2% of Mo and the balance Fe; and the cobalt-based alloy powder is mixed with tungsten carbide powder, and transition layer powder and wear layer powder are obtained. According to the prepared super-thick high-temperature-resistant and wear-resistant cladding layer on the surface of the hot mold, the cobalt-based alloy is creatively adopted as a high-temperature adhesive and matched with large-particle broken tungsten carbide to serve as a hard phase, and precise matching of the performance of the cladding layer is achieved by differentially regulating and controlling the content of tungsten carbide in the transition layer and the wear layer. The overall thickness of the coating is far larger than that of a traditional PVD titanium nitride coating, long-acting protection can be provided for the hot mold, and the service life of the hot mold under the high-temperature and high-abrasion working condition is greatly prolonged.

This utility model relates to the field of touch screen edge protection technology, and discloses a touch screen edge protection structure, including a display screen body. The outer wall of the display screen body is provided with four L-shaped edge protection frames. The four L-shaped edge protection frames are arranged in a rectangle and respectively constitute the upper, lower, left, and right edge protection support structures of the display screen body. Elastic bands are fixedly connected between adjacent L-shaped edge protection frames. This touch screen edge protection structure forms a double-layer physical protection through "L-shaped edge protection frames (inner basic edge protection) + L-shaped protective frames (outer protection)". The outer protective frame can directly resist external impacts, compression, and other external forces, while the inner edge protection frame further supports the edge of the display screen. This double protection effectively reduces the risk of damage to the display screen edge due to external forces. Combined with edge protection strips (silicone cushioning) and elastic bands (elastic cushioning), it can effectively resist external impacts and compression, reducing the risk of damage to the display screen edge.

The invention discloses a photovoltaic welding strip, a photovoltaic module production method, production equipment and a photovoltaic module. The photovoltaic solder strip comprises a conductive substrate and a protective reflective layer, and is not provided with a solder layer for providing enough brazing materials for ensuring effective welding. Under the condition of the same conductivity, the photovoltaic solder strip is smaller in size and lower in cost, the proportion of the thickness of the adhesive film and the shading area caused by the solder layer with the conductivity basically negligible is lower, and the power generation efficiency of the photovoltaic module is improved while the material cost of the photovoltaic module is reduced. The problems that when the number of photovoltaic welding strips is increased and the size of the photovoltaic welding strips is reduced, the power generation efficiency is not obviously improved due to the fact that the proportion of the shading area is higher and higher caused by brazing materials, and the shapes and the performance of special-shaped welding strips such as triangular welding strips gradually tend to be the same as those of round welding strips are solved. And meanwhile, the lead-free property of the photovoltaic welding strip becomes possible.

The stamping die for hardware machining relates to the technical field of stamping dies and comprises a stamping workbench and a pressing plate, connecting assemblies are evenly installed on the stamping workbench and the pressing plate, a lower die is arranged at a center groove of the stamping workbench in an inserted mode, and a concave-convex detection mechanism is installed under the lower die in an attached mode. A pressing plate is arranged below the upper die, an upper die is connected under the pressing plate through a bolt, a distribution plate is arranged above the pressing plate, and pressure sensing oil cavities are distributed below the distribution plate at equal angles. When the upper die and the lower die are in press fit, downward pressure can be automatically distributed to different areas according to the concave-convex fluctuation condition of a grinding tool; by means of the technical scheme, the area with the large pressing amplitude (corresponding to the concave-convex degree of the die) is subjected to large hydraulic acting force, the area with the small pressing amplitude (corresponding to the concave-convex degree of the die) is subjected to small hydraulic acting force, the long-term protection effect on the die and hardware materials is achieved, and the precision is prevented from being affected.

This disclosure provides a self-healing protection system and method for automatic repair of damaged offshore wind power foundations. By sequentially setting a flexible base layer, a self-healing functional layer, and a surface layer on the foundation structure surface, and constructing a three-dimensional mesh microchannel within the self-healing functional layer, when cracks or damage occur in the protective layer, seawater is guided into the damaged area using the microchannels. This triggers a chelation reaction between magnesium phosphate cement-based filler and calcium and magnesium ions in the seawater, forming a deposition layer that fills the tiny gaps. Simultaneously, the microcapsules rupture, releasing a two-component repair agent, which cross-links and solidifies under the action of oxygen carried by seawater and wind, forming an elastic sealing layer. This achieves automatic repair of the damaged area, significantly reducing the maintenance cost of deep-sea and offshore wind power. Furthermore, the base layer buffers structural deformation stress, and the biomimetic structure and diamond-like coating of the surface layer enhance erosion and aging resistance. Combined with photochromic microspheres and a conductive sensing network, it enables visual monitoring and assessment of the degree of damage.

The invention discloses a three-step combined protection material for softening and reinforcing lacquer soil remain, a method and application, and relates to the technical field of cultural relic protection. The protection material comprises a paint film softening agent, a paint film reinforcing agent and a soil body reinforcing agent, according to the protection method, the paint film softening agent, the paint film reinforcing agent and the soil body reinforcing agent sequentially permeate, soften and reinforce a paint film and a soil body, and the effects of integrally protecting paint soil remain and improving the adhesion strength of the paint film and a filling supporting body are achieved; the environmental stability of the lacquer soil property storage is obviously improved, and the aim of storing the lacquer soil property storage for a long time in a normal library collection environment is achieved. The three-step combined technical method disclosed by the invention has the characteristics that the paint film softening effect is good, the paint film is firmly attached to the soil body, the whole soil body is reinforced, and the stability of the residual environment after reinforcement is high; and the used protective reagent has the advantages of being green and safe, good in compatibility with the paint soil property, low in cost, simple in process and wide in application range.

This invention relates to the fields of biomedical technology and pharmaceutical formulations, and discloses a sustained-release powder spray for oral ulcers based on milk exosomes and its preparation method. The spray uses milk exosomes as the active ingredient, combined with an extracellular matrix-simulated network composed of sodium hyaluronate and collagen, and the stabilizer trehalose. It is prepared into a dry powder with a particle size of 2-15 μm through a microdroplet freeze-drying process. During preparation, the components are mixed and formed into microdroplets using a microfluidic device, then instantaneously frozen in liquid nitrogen at -80°C, and finally freeze-dried to obtain the powder. This formulation can be stably stored for a long time at 2-8°C. When used, it is sprayed onto the ulcer surface using a quantitative spray device. Upon contact with moisture, the gel network is reconstructed in situ, achieving sustained release and protection of the exosomes. It has the advantages of convenient use, accurate dosage, and long-lasting healing promotion.

The utility model relates to electric power instrument technical field, and disclose a kind of installation structure for multifunctional electric power instrument of supporting double network segment, including cabinet, cabinet door and electric power instrument body, the cabinet door is away from the side of cabinet and is equipped with installation groove one and positioning groove, the electric power instrument body is fixedly installed with positioning block in the end close to cabinet door, the positioning block is equipped with through slot in the end away from electric power instrument body, the cabinet door is equipped with sliding slot, limit slot and clamping groove in the side close to cabinet, the inner wall of sliding slot is slidably connected with limit block.The installation structure for multifunctional electric power instrument of supporting double network segment, by the cooperation of protective cover, when collision occurs, the electric power instrument body is protected, so that it is not easy to damage, practicality is higher, sealing ring made of rubber material has good sealing property, prevent dust, moisture and other impurities through gap into the inside of protective cover, affect electric power instrument body, improve the service life of electric power instrument body.

The present invention provides a recombinant human syncytial virus RSV B pre F mRNA, and a human syncytial virus vaccine prepared by using the mRNA and its application. The present invention obtains a recombinant human syncytial virus mRNA by screening and modifying the virus strain and optimizing the mRNA sequence, and further successfully obtains a human syncytial virus mRNA / LNP nanoparticle vaccine. The prepared vaccine can produce specific antibodies and neutralizing antibodies after immunizing mice, and the protection time detection of the vaccine shows that the immune protection period of the human syncytial virus vaccine can reach more than one year. After the virus infection, the booster vaccine is given again, which greatly increases the antibody content, indicating that the human syncytial virus vaccine has a very good virus protection effect. Cotton rat lung experiments have shown that the vaccine can effectively control the amplification of RSV virus in the lungs, and the immune effect is significantly better than similar syncytial virus vaccine products on the market.

The invention relates to the technical field of constructional engineering materials, and particularly discloses a preparation method of a lightweight high-strength phosphate cement-based anti-skid coating. The method comprises the following steps: firstly, preparing core-shell structure functional aggregate with a nano aluminum oxide and silicon dioxide composite shell; then, based on gradient design, dry powder of magnesium phosphate cement, aggregate and the like is divided into a component A and a component B, the component B is additionally enriched with the aggregate, and the fiber amount is increased; mixing the bottom layer slurry and the surface layer slurry step by step; then two layers of slurry are sequentially coated on the concrete base surface in a rolling mode, macroscopic textures are formed through coining before initial setting of the surface layer, and then the roughness is enhanced through galling treatment; and finally, naturally curing for 1-2 hours to open traffic. According to the invention, through core-shell aggregate enhancement, gradient batching and roll coating-impressing integrated construction, the coating has the comprehensive properties of light weight, high strength, high adhesion, high wear resistance and rapid passage, and is suitable for efficient and durable repair of concrete pavements such as airfield runways and expressways.

The invention belongs to the technical field of metal surface treatment, and particularly relates to a metal surface corrosion-resistant and wear-resistant coating as well as a preparation method and application thereof, and the coating comprises the following components in percentage by weight: 60-75% of nickel-based alloy powder, 5-15% of nano oxide particles, 10-25% of coated graphite particles and 5-10% of a metal binding phase; the coated graphite particles take graphite particles as cores, and the outer layers of the coated graphite particles are coated with metal oxide nano layers. The surface hardness and the wear resistance are obviously improved; the coated graphite particles of the core-shell structure effectively protect the stability of the graphite in a flame spraying high-temperature environment, avoid the problem of failure of functional components in the prior art, and gradually release the graphite in the service process to form a self-lubricating surface and reduce the friction coefficient. Through a multi-component synergistic effect mechanism, the coating can still keep surface integrity under the severe working condition of coexistence of high load and strong corrosion, and the service life of key parts is remarkably prolonged.

The invention discloses a low-viscosity transmission lubricating oil composition as well as preparation and application thereof. The lubricating oil composition mainly comprises the following components in parts by weight: 0.55-0.75 part of a phosphorus-containing agent; 0.2 to 0.6 part of sulfurized alkyl cyclohexanecarboxylate; 0.75 to 1.45 parts of an antioxidant; 2.1 to 3.5 parts of an ashless dispersant; 0.05 to 0.15 part of a clearing agent; 0.001 to 0.003 part of an anti-foaming agent; and the balance of base oil. The phosphorus-containing agent comprises a benzotriazole methylene thiophosphate ammonium salt; the antioxidant is 4, 4-methylene-(4, 4-diphenylamine)-bis (2, 6-di-tert-butylphenol). The apparent viscosity of the low-viscosity transmission lubricating oil composition provided by the invention at-40 DEG C is less than 2000mPa. S, the FZG (A10 / 16.6 R / 90) gear machine test is greater than grade 9, the FZG gear pitting corrosion resistance test time exceeds 400 hours, the transmission efficiency of a reduction gearbox reaches 98.5% or above, and the lubricating working condition requirements of a new generation of three-in-one electric drive reduction gearbox with the input rotating speed being 22000r / min or above can be met.

This invention relates to the field of cement building materials, specifically disclosing a cement-based protective material with both ion trapping and induced passivation functions and its application. The cement-based protective material comprises the following components: 95-100 parts by weight of magnesium phosphate cement, 4-6 parts by weight of retarder, and 20-25 parts by weight of composite modifier. The composite modifier comprises modified dry powder, calcium-containing dry powder, mixing water, and a dispersant, and the modified dry powder is obtained by calcining a layered bimetallic hydroxide with an aluminum source. The cement-based protective material of this invention exhibits high Cl- content... ‑ SO4 2‑ In addition to its excellent impermeability in CO2 environments, it can also actively capture corrosive ions, promote the formation and maintenance of a stable passivation film on the steel surface, thereby providing more long-lasting and reliable protection for marine steel structures.

The invention belongs to the field of daily chemicals, and particularly provides a composition with a long-acting hair protection effect. According to the composition, organic silicon resin modified waterborne polyurethane (MQWPU) and hydrolyzed keratin are blended, repairing and protecting synergism is achieved, damaged hair can be effectively repaired for a long time, the composition is applied to hair products, the damaged hair is deeply repaired from the source, the hair is protected for a long time, both symptoms and root causes are treated, and the health state of the hair is restored.

The invention discloses a preparation method of a limestone-fired clay low-carbon cement-based strong-hydrophobicity high-chlorine-resistance steel bar coating, which comprises the following steps: (1) adding stearate into a methanol dispersion liquid of a double-ligand carrier material, stirring, adding tetraethoxysilane, and continuously stirring for reaction to obtain a slow-release hydrophobic molecule modifier; (2) activating the argillaceous solid waste heat, quenching the argillaceous solid waste heat to room temperature, and grinding the product to obtain activated clay powder; and uniformly mixing the calcined clay with cement clinker, limestone powder and gypsum to obtain the limestone-calcined clay low-carbon cement. And (3) uniformly mixing the slow-release hydrophobic molecule modifier, limestone-fired clay low-carbon cement and water to obtain the steel bar coating. Through the synergistic effect of the limestone-fired clay low-carbon cement and the slow-release hydrophobic molecule modifier, a uniform and stable hydrophobic chlorine-resistant gel network is constructed, the strong hydrophobic and high chlorine-resistant effects are achieved, and the protection effect on the reinforcing steel bars is effectively improved.

The invention discloses a vehicle shock absorber lubricating oil composition, and also discloses a preparation method of the vehicle shock absorber lubricating oil, the composition comprises the following components by mass: 83.37-88.69% of base oil, 11%-16% of a viscosity index improver, 0.3-0.6% of a gear oil composite additive, and 0.01-0.03% of an anti-foaming agent, and the sum of the mass percentages of the components is 100%. The vehicle shock absorber lubricating oil composition has the advantages of few types of raw materials, simple production process, easy operation and excellent cost performance, has excellent viscosity-temperature performance and low-temperature fluidity, excellent extreme pressure wear resistance and shear stability, excellent anti-oxidation stability, excellent rubber compatibility and anti-foaming property, and can be used as a vehicle shock absorber lubricating oil composition. The shock absorber can be used for various high-grade motorcycles, cars, wagons, new energy vehicles, railway locomotives and other vehicles, and provides a stable and long-lasting shock absorption effect for vehicle shock absorbers.

The invention relates to the technical field of powder coatings, in particular to a corrosion-resistant offshore photovoltaic support composite coating and a preparation method thereof.The corrosion-resistant offshore photovoltaic support composite coating comprises a hot-dip coating arranged on the surface of a photovoltaic support and a polyester powder coating arranged on the surface of the hot-dip coating; the thickness of the hot-dip galvanizing layer is 40-100 [mu] m, the plating mass of the hot-dip galvanizing aluminum magnesium layer is 250-300 g / m < 2 >, and the thickness of the polyester powder coating is 100-150 [mu] m; the corrosion grade Ri0 and the peeling grade S0 of the super-weather-resistant polyester hot-dip galvanizing layer composite coating system disclosed by the invention are subjected to a cyclic aging test for 4200 hours. It is shown that the composite coating system can provide a long-term protection effect on steel in the CX environment, meanwhile, a hot galvanizing layer in the coating system can provide a good electrochemical protection effect on a base body exposed at the scratches, and in other words, when the steel base is exposed due to slight scratches and collisions in the installation and transportation process, the steel base is not prone to being scratched and collided. The coating system can still provide good protection for the coating.

The novel anti-corrosion structure comprises a chimney cylinder body, an anti-corrosion structure body is arranged on the side face of the chimney cylinder body, the anti-corrosion structure body comprises a soft plate, a fireproof pad, a cement protection layer, a hot galvanizing coating, a surface adhesive layer and a protection sleeve, and a fixing ring is arranged on the protection sleeve. A climbing device is arranged on the chimney cylinder body and comprises a connecting rod, a fixing ring, a supporting plate, a handrail, a guardrail, a connecting opening and a connecting ladder. Through the above devices, through cooperation of the soft plate, the fireproof pad, the cement protection layer, the hot galvanizing coating and the surface adhesive layer, the problem that the surface of the chimney cylinder body is uneven is effectively solved, the fireproof pad prevents the soft plate from being burnt out, the cement protection layer fixes the interior, and the hot galvanizing coating is matched with the surface adhesive layer, so that the corrosion resistance is improved, and corrosion of atmosphere and rainwater can be effectively resisted; and the protective sleeve is matched with the chimney cylinder body, so that the outer skin is effectively prevented from falling off, and the potential safety hazard is solved.

The invention discloses an anti-aging polypropylene recycled material and a preparation method thereof, and belongs to the technical field of polymer materials. The raw materials of the polypropylene recycled material include: 70 parts of recycled polypropylene resin, 20-30 parts of ethylene propylene diene monomer rubber, 15-25 parts of fillers, 1-3 parts of coupling agents, 0.5-1.2 parts of anti-aging agents, 0.5-1 parts of lubricants, and 0.05-0.1 parts of initiators. The filler of the invention can produce chemical reactions with the anti-aging agent, the matrix resin and the rubber under the action of the coupling agent and the initiator, and the anti-aging agent containing aromatic amine structure, hindered phenol structure and hindered amine structure also has chemical reactions with the filler, the matrix resin and the rubber. Therefore, the filler and the anti-aging agent can be highly dispersed and stably present in the polypropylene recycled material, and play a synergistic role to give the polypropylene recycled material excellent and stable anti-ultraviolet aging performance, anti-thermal oxygen aging performance and wear resistance and other properties.