49 results about "Fluorocarbon coating" patented technology

This invention belongs to the field of resin synthesis technology and discloses a phase change energy storage and thermal insulation fluorocarbon coating and its preparation method. The coating comprises 23-25% PVDF fluorocarbon resin, 8-9% acrylic resin, 10-20% phase change material, and a specific composite solvent system. Through a stepwise dispersion process, the inorganic filler is first ground to ≤15μm, and then the phase change material is slowly dispersed under controlled temperature conditions, solving the technical problems of easy breakage and unstable dispersion of phase change material in solvent-based systems. This invention innovatively combines the thermal management capabilities of phase change material with the extreme durability of solvent-based fluorocarbon resin, and with optimized formulation and refined dispersion process, achieves excellent and long-lasting dynamic thermal insulation performance, providing a high-performance coating solution for building energy conservation and emission reduction. By maintaining the integrity of the PCM microcapsule structure in the solvent-based system, the coating is endowed with dynamic temperature buffering capability, matching the phase change functional lifespan with the weather resistance lifespan of the fluorocarbon resin.

The invention relates to the technical field of luminescent coatings, in particular to modified isocyanate resin containing aggregation-induced emission groups as well as a preparation method and application of the modified isocyanate resin. According to the preparation method, tromethamine is adopted to introduce tetraphenyl ethylene-isothiocyanate containing an aggregation-induced emission group into 4, 4 '-dicyclohexylmethane diisocyanate, so that the modified isocyanate resin is obtained. Luminescent paint can be obtained by using the modified isocyanate resin as a curing agent. The fluorocarbon coating prepared by taking the modified isocyanate resin as a curing agent and matching the modified isocyanate resin with fluorocarbon resin has the advantages of luminescence property, excellent weather resistance and excellent stain resistance.

The utility model discloses a kind of high-stability corrosion-resistant single-point mooring ultra-thin wall bearing devices, including outer ring body, reinforcing support plate inner wall middle position is equipped with oil filler, and reinforcing support plate inside upper and lower edge is equipped with splicing slot, splicing slot inner wall is inserted and is installed with mounting block, and mounting block one side is rotatably embedded and installed with sliding bead, mounting block and reinforcing support plate one side are inserted and installed with first fixed bolt.This kind of high-stability corrosion-resistant single-point mooring ultra-thin wall bearing device can be side supported by reinforcing support plate, and can be stably rotated by sliding bead, mounting block, and the effect is good, and high-efficiency corrosion-resistant treatment can be carried out by the zirconia ceramic ball material quality of ball and the double-layer structure of nano ceramic coating and organic fluorocarbon coating coating, can adapt to complex marine environment, and high-efficiency heat dissipation can be carried out while being fixed by bolt seat, heat-conducting block and second fixed bolt, and the effect is good.

The utility model relates to the technical field of mixer blade, especially to an explosion -proof submersible mixer blade, including the mounting bush, the mounting bush is the cylinder structure, the surface of mounting bush is equipped with a plurality of mounting holes for connecting with motor shaft, the mounting hole is along the both ends of mounting bush symmetry distribution setting, a plurality of blades are fixedly arranged on the outer wall of mounting bush, the end of blade is provided with curved end head. This scheme provides high -strength support through stainless steel base layer, polyurethane buffer layer absorbs fluid impact vibration, aluminium alloy reinforcing framework promotes compression resistance and torsion resistance, carbon fiber surface layer ensures form stability, fluorocarbon coating enhances corrosion resistance, the synergistic effect of the multiple materials makes the blade effectively resist deformation, fracture and corrosion in high -speed rotation or high resistance fluid environment, greatly prolongs the service life, the spiral head and the positioning block structure set up on the blade surface can form complex turbulence in the stirring process, and the fluid mixing effect is significantly improved.

The utility model provides a kind of marine corrosion-resistant anti-vibration intelligent high-low voltage switch cabinet, including shell, the shell includes front plate, back plate, left side plate, right side plate, top plate and bottom plate, between left side plate and right side plate still be equipped with baffle, the baffle will switch cabinet inside be divided into two areas of front and back, multiple wire slots are equipped on the front and back of baffle, wire slot is evenly equidistant and is transversely parallel arrangement, shock-absorbing support is equipped between wire slot, electric appliance module is installed on shock-absorbing support;By corrosion-proof design in switch cabinet shell, shell is made of 316L stainless steel, and is coated with fluorocarbon coating etc., can effectively resist the corrosion of marine environment, prolong the service life of switch cabinet, reduce maintenance cost, and inside by setting shock-absorbing support, anti-vibration rib and reinforcing rib etc. Structure, can effectively buffer and absorb vibration energy, reduce the influence of vibration on electric element, protect the normal work of electric element, improve the reliability of switch cabinet.

The invention relates to the technical field of navigation station escalator structures, in particular to a navigation station escalator mounting structure which comprises a truss, a bottom plate and side plates. A mechanical locking system of the snap fastener and the L-shaped connecting plate replaces traditional welding, lossless disassembly and assembly are achieved, and the hidden danger of open fire is eliminated; the cellular board and the galvanized square tube are cooperatively stressed, dependence on civil engineering precision is reduced, welding or pouring is not needed in construction through a modular fast-assembly system, a snap fastener structure supports fast overhaul, downtime is greatly shortened, the composite design of the galvanized square tube and the cellular board is combined with a fluorocarbon coating, the weight is reduced, and meanwhile the service life is prolonged. The adjusting assembly drives the screw rod to transmit through the rotary connecting shaft, stable supporting force is formed, and the installation flexibility is improved; the locking assembly achieves angle rapid locking through spring resilience, the adjusting stability is ensured by being matched with guide groove limiting, the requirements of trusses with different angles are met, the structure is safe, efficient, durable and adjustable, and the escalator installation and maintenance efficiency is remarkably improved.

The utility model provides a kind of lightweight high-strength honeycomb core aluminum plate, belong to metal sheet field, including aluminum plate base body, the surface of aluminum plate base body is provided with the composite mechanism for improving the strength of aluminum plate base body. 3 , 8-10% lower than traditional aluminum alloy, tensile strength reaches 550-600MPa, yield strength is greater than or equal to 500MPa, meets the structural load demand, aramid paper honeycomb density is only 40-80kg / m 3 , aramid honeycomb shear strength is greater than or equal to 3MPa, effectively resist transverse load, by crushing deformation absorption impact energy, modified epoxy resin adhesive film T type peel strength is greater than or equal to 15N / cm, ensure that honeycomb core and panel long-term combination, set up carbon fiber reinforced polymer, make overall bending modulus increase 40-60%, tensile strength reaches 1500MPa, panel layer uses 7075-T6 aluminum alloy, surface hardness reaches 150HB, scratch resistance is superior to ordinary aluminum plate, polyvinylidene fluoride fluorocarbon coating QUV accelerated aging 5000h after light retention rate is greater than or equal to 85%, applicable to outdoor scene.

This invention discloses a high-durability, self-cleaning reflective thermal insulation coating and its preparation method. The coating is prepared using a specially designed and synthesized grafted modified silicone resin combined with fluorocarbon resin, high-reflectivity filler, and thermal insulation filler. By introducing coupled polysiloxane segments with numerous amide structures and end-capped with catechol groups into the cured segments of the fluorocarbon coating in a grafted and suspended state, highly stable microphase separation of the coating system is achieved, effectively improving the matrix density and coating adhesion. Combined with the original strong reflective thermal insulation performance, this results in ultra-high durability and self-cleaning properties. This technology has a clear mechanism of action, a simple production process, and excellent performance, making it suitable for large-scale production. It enables the coating to maintain its long-term reflective thermal insulation and temperature control performance under complex and harsh environments, which is of great significance for green and sustainable temperature control and protection of buildings and engineering structures in various complex environments.

The invention relates to a pvdf fluorocarbon coating color matching device which comprises a feeding tank, a plurality of feeding assemblies, a discharging assembly, a rotating and vibrating assembly and a nitrogen input assembly, the feeding assemblies are arranged on the lower portion of the feeding tank, the discharging assembly is arranged at the bottom of the feeding tank, the rotating and vibrating assembly is arranged at the bottom of the feeding tank, and the nitrogen input assembly is arranged on the lower portion of the feeding tank. A temperature control assembly and an ultrasonic assembly are arranged on the outer side wall of the middle of the feeding tank, the temperature control assembly is used for conducting temperature detection and cooling on the feeding tank, the ultrasonic assembly is used for conducting ultrasonic vibration on the feeding tank, a cover body is arranged on the top of the feeding tank, and a gas inlet pipe of the nitrogen input assembly is connected to the cover body. According to the color matching device for the pvdf fluorocarbon coating, the content consistency of all components in output color paste can be high, prepared coatings in different batches have no color difference, and the mixing efficiency of the color paste is improved.

The utility model belongs to civil construction equipment technical field especially relates to a civil construction support device, including base, the base is located in the side of wall, the other side of base is equipped with hinged member through welding, the hinged member is swingingly connected through connecting rod, the other side of hinged member swingingly installs support rod, the bottom of support rod swingingly installs on support base, the bottom fixed mounting of support base has rubber damping pad. This civil construction support device, hinged mechanism is combined with lock nut, spring pre -tensioning half -spherical pre -tightening spare through stud, realizes hinged ball ± 15 DEG rotation and mechanical self -locking, and the tensile force is more than 200kN, improves installation efficiency, and the support mechanism is with the structure of sleeve, realizes the regulation of ± 1mm accuracy with hydraulic cylinder and laser range finder, the bottom is designed to adapt to the inclined ground, hot-dip galvanizing and fluorocarbon coating prolong the life, solve the many problems of traditional device.

The utility model provides a corrosion-resistant die-casting aluminum alloy ingot, and relates to the technical field of aluminum alloy ingots. The corrosion-resistant die-casting aluminum alloy ingot comprises an aluminum alloy ingot body, fixing blocks are fixed to the two sides of the aluminum alloy ingot body correspondingly, connecting blocks are fixed to the separated ends of the two fixing blocks correspondingly, limiting frames are fixed to the two sides of the aluminum alloy ingot body correspondingly, and limiting grooves are formed in the separated sides of the two limiting frames correspondingly; two upper grooves are formed in the upper side of the aluminum alloy ingot body. According to the corrosion-resistant die-casting aluminum alloy ingot, the two aluminum alloy ingots are drawn close to each other in a back-to-back state through manpower, the stable clamping effect is achieved, the aluminum alloy ingots can be tightly connected into a whole, and then the effect of improving the use stability of the aluminum alloy ingots is achieved; according to the aluminum alloy ingot composed of the fluorocarbon coating, the ceramic coating, the anodic oxidation film layer, the rare earth conversion film layer, the corrosion-resistant alloy layer and the chromate conversion film layer, the corrosion-resistant effect of the aluminum alloy ingot is achieved, and the effect of improving the using effect of the aluminum alloy ingot is achieved.

The application relates to the field of color steel plate preparation, and particularly discloses a preparation process of a low-VOCs environment-friendly color plate; the preparation process comprises the following steps: S1, after the pretreatment of a steel plate, uniformly spraying toughening coating and porous toughening fibers on the surface of the steel plate, drying, and die forming to obtain a semi-finished product; and S2, uniformly spraying water-based fluorocarbon coating on the surface of the semi-finished product, drying, and obtaining a finished product; the preparation process has the advantages of low VOCs, and the color steel plate has the advantages of high impact resistance, high corrosion resistance and ultraviolet resistance on the plane of the top of the color steel plate.

The invention belongs to the field of coatings, and discloses a normal-temperature curing type PVDF fluorocarbon coating and a preparation method thereof.The PVDF fluorocarbon coating is formed by mixing a component A and a component B. The component A comprises PVDF resin, hydroxy acrylic resin, modified titanium dioxide, modified talcum powder, a dispersing agent, a defoaming agent, a flatting agent and a mixed solvent, and the component B is an aliphatic HDI tripolymer curing agent; the modified titanium dioxide is prepared by the following steps: inorganic coating of titanium dioxide with nano silicon dioxide and nano cerium oxide, surface modification with silane, and graft polymerization with trifluoroethyl methacrylate free radicals under initiation of azodiisobutyronitrile. The modified talcum powder is obtained by performing hydroxyl activation on talcum powder and then performing condensation grafting on the activated talcum powder and a PVDF oligomer; through cooperation of the modified titanium dioxide and the modified talcum powder, the curing speed, the mechanical property, the weather resistance, the corrosion resistance and the stain resistance of the PVDF fluorocarbon coating can be remarkably improved.

A fireproof gas clamp relates to the technical field of bridge cable facilities, is cylindrical and comprises an upper gas clamp and a lower gas clamp, fireproof layers are arranged on the outer surface of the upper gas clamp and the outer surface of the lower gas clamp, and each fireproof layer sequentially comprises a first epoxy fireproof coating layer, a reinforced high-temperature fiber net, a second epoxy fireproof coating layer and a fluorocarbon coating layer from inside to outside. The inner surface of the upper gas clamp and the inner surface of the lower gas clamp are provided with fireproof layers, and each fireproof layer sequentially comprises a silicone structural adhesive layer and an aerogel layer from inside to outside. According to the utility model, the gas clamp protects the main cable bearing a detonation high-temperature environment, so that the whole protection system is perfected, and finally, the bearing structure is effectively protected under the condition that the main cable is damaged by high-temperature combustion.

The invention relates to the technical field of coatings, in particular to a fluorocarbon coating and a preparation method and application thereof. According to the invention, the main component fluorinated acrylate is selected and grafted with polypropylene, so that the flexibility and thermal stability of the coating are improved, and therefore, when the temperature changes, the coating and a base material can keep good compatibility, and the stripping and cracking risks are reduced. The thermal expansion characteristic of the fluorocarbon resin is adjusted by changing the proportion of the comonomers, so that when the temperature of the fluorocarbon coating changes, the coating and a base material can keep good compatibility, and the stripping and cracking risks are reduced. The fluorocarbon resin and the polypropylene are mixed in a high-shear manner, so that the fluorinated acrylate is grafted with the polypropylene, and the flexibility and the thermal stability of the coating can be improved. The fluorocarbon coating provided by the invention is applied to a profile, and the profile shows metallic luster and is good in weather resistance and stain resistance. The coating is convenient to apply, short in curing time, high in production efficiency and low in energy consumption when being used for preparing profiles.

The utility model relates to the technical field of labor protection articles, in particular to a corrosion-resistant and smashing-resistant safety shoe, which comprises a safety shoe body, a toe cap, a side protective layer, a sole, a shoelace and a shoe lifter, the toe cap is fixedly mounted at the front part of the safety shoe body, and the side protective layer is fixedly mounted on the periphery of the bottom of the safety shoe body. Buffering blocks in the safety shoes are of a structure shaped like a Chinese character'tian 'and can buffer impact force from all directions, the buffering blocks and the steel plate layers are matched to achieve a good anti-smashing function, and the supporting columns are fixedly arranged on the side faces of the steel plate layers, so that the stability of the whole structure is further enhanced, and the anti-smashing performance is improved; the fluorocarbon coating coated on the surface of the safety shoe body serves as a corrosion-resistant coating, the corrosion resistance of the shoe is improved, the side protection layer is made of polyurethane injection molding materials, impact from the side face can be effectively prevented, the side face of the foot is protected against damage, the corrosion resistance of the whole shoe is further improved, and the service life of the shoe is prolonged. And more comprehensive and reliable protection is provided for workers in a complex working environment.

The utility model provides a circuit board with a high reflective film, which comprises a circuit board body, the circuit board body comprises an inner layer, and the upper surface of the inner layer is provided with a first modified copper foil layer, a first composite layer, a first solder mask layer and a high reflective film layer from bottom to top in sequence. A second modified copper foil layer, a second composite layer and a second solder mask layer are sequentially arranged on the lower surface of the inner layer from top to bottom; the first composite layer and the second composite layer are both composite layers formed by compounding plasma fluorocarbon coatings and silane coupling agents. Layer structure arrangement is optimized, and it is ensured that the structure has a good heat dissipation function.

The invention discloses a preparation method of a flame-retardant fluorocarbon coating and a product thereof. According to the idea of the invention, fluorocarbon resin and fire extinguishing capsules are combined to realize the self-cleaning and precise fire extinguishing functions of the coating, specifically, the coating is obtained through solvent type coating and subsequent electrostatic spraying multi-layer covering and finally ultraviolet curing, the contact angle of the coating is not smaller than 100 degrees, and the coating has good stain resistance and self-cleaning capacity. When the coating surface is baked by an alcohol lamp, the time from the time when flame directly touches the coating to the time when the flame is extinguished does not exceed 3 seconds, the capsule breaking synchronization rate is high, and it can be guaranteed that a large amount of medicine is released in a short time to achieve the extinguishment effect with small fire and large fire.

The utility model relates to the field of fluorocarbon coating filtering, and discloses an anti-ultraviolet high-performance fluorocarbon coating filtering device which comprises a supporting frame, a top tank is fixedly connected to the inner wall of the supporting frame, a bottom tank is fixedly connected to the bottom of the top tank, a filtering mechanism is arranged in the bottom tank, and the filtering mechanism is arranged on the inner wall of the supporting frame. The right side of the bottom tank is fixedly connected with a discharging pipe, the top of the supporting frame is provided with a filter pressing mechanism, the filter pressing mechanism comprises a stepping motor, the stepping motor is fixedly connected to the top of the supporting frame, the front side of an output shaft of the stepping motor is fixedly connected with a circular plate, and the front side of the circular plate is hinged to a connecting rod. According to the utility model, the stepping motor works to drive the circular plate to rotate, so that the vertical rod does linear reciprocating motion in the vertical direction, the pressing plate is driven to move up and down, the fluorocarbon coating is gradually pressed into the bottom tank from the top tank to be filtered, the conveying pressure and the filtering speed are improved, the filtered residues are reduced, and the filtering efficiency is improved.

This utility model discloses an aging-resistant high-voltage porcelain insulator, relating to the field of porcelain insulators. It includes a porcelain core with awnings on its outer side. A fixing seat is fixedly connected to the top of the porcelain core, and a groove is formed in the center of the top of the fixing seat. Multiple anti-slip blocks are fixed inside the groove. A U-shaped insert is inserted between the two sides of the top of the fixing seat, and the bottom end of the U-shaped insert is connected to the fixing seat via a locking mechanism. The nano-alumina transition layer has good adhesion and chemical corrosion resistance, providing a stable substrate for the silicone-modified fluorocarbon coating, allowing it to better perform its protective function. The silicone-modified fluorocarbon coating exhibits excellent weather resistance, UV aging resistance, and self-cleaning properties.

The blending device comprises a blending mechanism, the bottom of the front side of the blending mechanism is fixedly connected with a mixing mechanism, the blending mechanism comprises a connecting frame, and the bottom of the front side of the connecting frame is fixedly connected with a blending assembly. By arranging a seasoning mechanism, a seasoning assembly and a mixing mechanism, it is guaranteed that ingredients are not splashed to the outside of the device to cause waste, meanwhile, the situation that the ingredients are left on the inner wall of a batching barrel to cause matching errors is avoided, specifically, after a double-shaft motor is started, the double-shaft motor drives conical teeth to rotate, then second conical teeth and a two-way hinge shaft rotate, and the mixing efficiency is improved; when the proportion of the ingredients reaches a preset value, the ingredients enter the mixing barrel through the conveying pipe and are mixed through high-speed rotation of the stirring blades, and when the double-shaft motor rotates reversely, the push-pull rod and the mixing barrel move reversely, so that the ingredients are mixed uniformly. And the scraping disc of the batching barrel scrapes the ingredients on the inner wall.

The utility model relates to the technical field of pipeline supporting equipment, in particular to a phenolic aldehyde composite heat preservation pipe bracket and a modularized supporting structure. According to the phenolic aldehyde composite heat preservation pipe bracket, the bearing base and the phenolic aldehyde heat preservation layer can be rapidly disassembled and assembled through the dovetail-shaped embedded structure, the reinforcing protection layer is arranged to cooperatively provide strength support, and the fluorocarbon coating layer can be continuously arranged to enhance the corrosion resistance of the structure; furthermore, the height in the vertical space can be adjusted through the design of a height adjusting module. The phenolic aldehyde composite heat preservation pipe bracket and the modularized supporting structure integrate the advantages of high-strength supporting, ultralow heat conduction, vibration resistance, durability, acid resistance, salt resistance, rapid installation and the like, solve the technical problem of load bearing-heat preservation cooperation of the pipe bracket part, and are suitable for petrochemical engineering, LNG conveying, heat supply pipe networks and other scenes.

The invention relates to the technical field of anti-icing fluorocarbon coatings, and discloses a photo-thermal anti-icing fluorocarbon coating and a preparation method thereof.The preparation method comprises the steps that firstly, MXene modified Bi2S3 and TiN nanometer materials are synthesized through a hydrothermal method, then raw materials such as pigments and fillers, dispersing auxiliaries, functional auxiliaries and diluents are mixed with fluorocarbon resin, and fluorocarbon resin finish paint coating is prepared; the coating and corresponding matched primer form an anti-icing coating, so that the effects of icing delay and photo-thermal deicing can be effectively achieved; therefore, the fluorocarbon coating disclosed by the invention is suitable for long-acting anti-icing protection in the fields of wind power blades and the like.

This utility model discloses a rotary cup atomizer structure for electrostatic spraying of fluorocarbon coatings, relating to the field of electrostatic spraying rotary cup technology. It includes a housing and a rotary cup, with the rotary cup disposed within the inner cavity of the housing. A feed pipe is fixedly connected to the middle of the right side wall of the rotary cup, and mounting columns are fixedly connected to the upper and lower sides of the left end of the feed pipe. This rotary cup atomizer structure for electrostatic spraying of fluorocarbon coatings feeds material into the rotary cup through the feed pipe. During feeding, the coating is cut by a perforated plate, dividing large streams of coating into smaller liquid flows or droplets. The sprayed coating is reflected by an arc-shaped reflector plate in conjunction with the mounting columns, increasing the contact area between the coating and air and improving the atomization effect. Then, the coating passes through a guide channel in conjunction with a baffle plate, causing the coating to generate a more complex flow pattern during directional flow, increasing the mixing degree within the coating and between the coating and air, thereby improving the overall atomization effect.

The utility model discloses a high voltage resistant insulation printed PCB circuit board, comprising a board body, the board body comprises a surface protection layer, a middle composite layer and a bottom protection layer, the middle composite layer comprises a high voltage signal layer, an intelligent monitoring layer, a composite insulation layer, a dynamic stress buffer layer and a nanometer composite shielding layer, the surface protection layer, the middle composite layer and the bottom protection layer are bonded through low-temperature plasma interface activation treatment, a plurality of mounting holes are formed in the board body, a plurality of electronic elements are arranged on the front end face of the board body, the surface protection layer is composed of a nano aluminum oxide ceramic coating, and the surface protection layer is composed of a nano aluminum oxide ceramic coating. The bottom protection layer is composed of a plasma polymerization fluorocarbon coating. The utility model integrates the functions of high-voltage resistance, self-monitoring, interference resistance and environmental protection, is suitable for scenes such as new energy equipment and industrial high-voltage systems, and significantly improves the reliability and service life of the equipment.

The utility model discloses a sectional material with a groove structure, which relates to the field of sectional materials and is characterized by comprising a main body, a mounting groove is arranged on the top surface of the main body, an abutting surface is arranged on the inner side wall of the mounting groove, an abutting strip is integrally formed on the bottom surface of the mounting groove, one side of the abutting strip is abutted against the abutting surface, and the other side of the abutting strip is abutted against the groove structure. A bending groove is formed in the bottom end of the side wall of the side, away from the abutting face, of the abutting strip. In the utility model, due to the existence of the bending groove, the abutting strip is easy to break towards the direction, the actual insertion width of the mounting groove is increased so as to adapt to a workpiece with a larger size, and the fluorocarbon coating is a coating taking polyvinylidene fluoride resin as a main component, so that the chemical resistance of the profile can be improved.

According to the modified graphene water-based anticorrosive paint provided by the invention, a graphene filler is used for a water-based fluorocarbon paint, graphene is highly uniformly dispersed in a coating, and a corrosion resistance test shows that the modified graphene water-based anticorrosive paint has extremely high corrosion resistance.

The utility model relates to the field of tuners, and discloses an anti-corrosion television tuner which comprises a bottom shell, the top end of the bottom shell is detachably provided with an installation shell, the outer wall of the bottom shell is fixedly connected with a fixing block, the inner wall of the installation shell is provided with a limiting mechanism, the inner wall of the installation shell is fixedly connected with a guide pipe, and the inner wall of the guide pipe is provided with an anti-corrosion groove. A limiting groove is formed in the inner wall of the fixing block, an annular plate is fixedly connected to the bottom end of the mounting shell, and an air bag is fixedly connected to the outer wall of the annular plate. Related disassembly operation can be completed by simply moving the L-shaped block and utilizing the elastic force of the reset spring, a gap between the bottom shell and the installation shell can be effectively sealed and corrosive gas, water vapor and the like can be prevented from entering the interior by means of the characteristic that the air bag is tightly attached to the notch of the inserting hole after being extruded and deformed during installation, and the sealing effect is good by matching with fluorocarbon coating on the surface of the air bag. The long-term stable use of the bottom shell and the mounting shell is greatly guaranteed, and the overall corrosion resistance is improved.

This invention discloses a self-cleaning fluorocarbon coating and its preparation method, belonging to the field of coating technology. The method involves first preparing a fluorinated graft-modified nanocomposite slurry and a fluorocarbon-epoxy modified matrix, then adding a modified core-shell type fluorinated acrylate crosslinking agent and a curing agent. After stirring and filtration, the finished product is obtained. The modified core-shell type fluorinated acrylate crosslinking agent, through core-shell structure design and epoxy modification, improves its crosslinking density and compatibility; the fluorinated graft-modified nanocomposite slurry can impart photocatalytic degradation and low surface energy properties to the coating. The fluorocarbon coating prepared by this invention possesses excellent self-cleaning properties, weather resistance, mechanical properties, and resistance to chemical corrosion. Furthermore, the preparation process of this invention is controllable and suitable for high-end outdoor applications such as construction, bridges, and rail transportation.

The invention belongs to the field of bare conductors for overhead transmission lines, and discloses an overhead bare conductor and a preparation method thereof, and the overhead bare conductor comprises a central water absorption core, a stranded conductor layer, an outer protective coating and an end sealing assembly. The central water absorption core is of a hollow columnar structure woven by porous basalt fibers, and an inner cavity of the central water absorption core is filled with hydrophobic silicon dioxide aerogel particles; the stranded conductor layer is formed by spirally stranding a plurality of tinned copper wires by taking the central water absorption core as an axis, and a polyurea-epoxy resin composite sealing layer is filled in a stranding gap between the adjacent tinned copper wires; the outer protective coating is a nano zinc oxide modified fluorocarbon coating and covers the outer surface of the stranded conductor layer, and the thickness of the coating is 0.2-0.4 mm; all-dimensional rainwater seepage prevention is realized, the corrosion resistance and the service life of the wire are improved, and the problems of potential safety hazards and high maintenance cost caused by water seepage of an existing bare wire are solved.