43 results about "Gelcoat" patented technology

The invention discloses a composite insulating arm surface repairing material and a repairing method, and the repairing material comprises the following raw material components in parts by weight: 100 parts of matrix resin, 0.8-4 parts of a curing agent, 0.2-1.2 parts of an accelerant, 5-20 parts of color paste, 10-25 parts of inorganic particles, and 10-25 parts of inorganic fibers. The repairing material is simple in preparation method and convenient to use, according to the repairing method, the repairing material is used for replacing gel coat spraying repairing, the operation difficulty is low, the repairing duration is shortened, the repairing efficiency is improved, and all technical indexes of the repaired insulating arm component can meet the use requirements.

The invention relates to a multi-layer glass fiber reinforced plastic production line, a production method and multi-layer glass fiber reinforced plastic, and relates to the field of glass fiber reinforced plastic production equipment.The multi-layer glass fiber reinforced plastic production line comprises a bottom film processing unit, a first fiber laying and gluing unit, a composite thickness determining unit, a heating and curing unit and a trimming and cutting unit which are sequentially arranged; the upper layer processing unit is capable of forming a top film gel coat on the top film and / or paving a second fiber layer on the top film and infiltrating a second resin adhesive on the top film and forming a semi-cured state, and the lower layer processing unit is capable of forming a second fiber layer on the top film and infiltrating a second resin adhesive on the top film and forming a semi-cured state. The composite thickness determining unit can lay the second fiber layer on the first fiber layer to form a composite glass fiber reinforced plastic material with a set thickness, and the composite glass fiber reinforced plastic material is heated and cured by the heating and curing unit and trimmed and cut by the trimming and cutting unit to form the composite glass fiber reinforced plastic, so that the production quality of the composite glass fiber reinforced plastic product can be ensured.

The invention discloses a non-pressure-resistant shell main structure of an unmanned underwater vehicle and a machining method, and relates to the technical field of underwater vehicles. The device comprises a lower shell and frameworks, the lower shell and the frameworks are fixedly connected in an up-and-down buckling mode, a transverse framework and a longitudinal framework are fixedly connected in a mutually perpendicular mode, and metal embedded parts are bonded to the positions, where equipment and a floating material body are installed, of the transverse framework and the longitudinal framework; the shell and the framework are both made of carbon fiber composite materials, a buoyancy material is arranged in the space formed by the shell and the framework, the buoyancy material, the shell and the framework form an integral revolving body streamline structure, and during processing, a modified epoxy gel coat is adopted, so that the performance of the shell is improved by means of blocking of nano-montmorillonite, wear resistance of silicon carbide and toughening of polyurethane microspheres. Water-resistant, wear-resistant and impact-resistant surface protection is provided for the shell, and underwater erosion and collision are resisted; the wettability and binding force with the carbon fiber cloth are improved by adopting the modified epoxy resin, and the mechanical bearing capacity of the composite material is enhanced.

The utility model belongs to the technical field of bridge secondary reinforcement, and particularly relates to a dipping glue scraping tool applied to carbon fiber cloth reinforcement, which comprises a V-shaped glue groove for storing glue, and a roller brush for realizing glue scraping operation by rolling on the surface of carbon fiber cloth is arranged in the V-shaped glue groove. The front side of the V-shaped glue groove is provided with a rotary rolling roller set which moves synchronously with the V-shaped glue groove and is used for rolling the carbon fiber cloth, and a handrail used for being held by hand is arranged between the V-shaped glue groove and the rotary rolling roller set. According to the utility model, the exhausting, flattening and glue scraping processes of the carbon fiber cloth are reasonably and effectively combined, so that the glue scraping operation efficiency is improved, and the glue scraping effect is improved.

The utility model relates to the technical field of train interior decoration processing, and discloses a gel coat resin spraying device for train interior decoration processing, which comprises a workbench, the upper part of the workbench is fixedly connected with a fixing frame, the upper part of the fixing frame is fixedly connected with a fixing frame, the fixing frame is internally fixedly connected with a motor, and the motor is fixedly connected with the workbench. A worm is fixedly connected to the output end of the motor, a rotating shaft is rotationally connected to the interior of the fixing frame, a worm gear is fixedly connected to one end of the rotating shaft, the worm is connected to the rear portion of the worm gear in a meshed mode, a rotating disc is fixedly connected to the bottom of the rotating shaft, and a fixing pipe is fixedly connected to one side of the rotating disc; spray heads are fixedly connected to the periphery of the outer portion of the fixing pipe. According to the spraying device, the spraying head can be conveniently driven to carry out angle adjustment, the spraying uniformity is improved, interior trim can be effectively clamped and fixed, and it is ensured that interior trim parts are kept stable in the spraying process.

A thermally curable gel coat resin composition (X) comprising an oligomeric ethylenically unsaturated resin (UR) and at least one reactive diluent (RD) wherein the oligomeric ethylenically unsaturated resin (UR) comprises at least one polyether-functional urethane (meth) acrylate (A), the polyether-functional urethane (meth) acrylate (A) can be obtained by the reaction of a mixture comprising (a) a polyfunctional isocyanate (I), (b) a hydroxyalkyl (meth) acrylate (HAA) and / or an unbranched C2-C4 polyalkylene glycol (meth) acrylate (AGA); wherein the reactive diluent (RD) comprises a monomer (B) having at least one (meth) acrylate group, and wherein the at least one polyether-functional urethane (meth) acrylate (A) comprises at least one unbranched moiety of Formula 1: wherein x is an integer from 2 to 4, n is an integer from 2 to 90.

The application discloses a kind of power vane forming die preparation methods, preparation wooden die;Preparation carbon fiber composite material suction surface shell mold: epoxy resin mold gelcoat is sprayed on the surface of wooden die of suction surface shell;According to the layer design of suction surface shell mold meat, carbon fiber fabric layer is sequentially placed on the surface of gelcoat layer;Vacuum bag film encapsulation is used to detect air tightness;According to the weight fraction of carbon fiber fabric, epoxy resin glue solution is prepared, and is injected into mold meat forming cavity;Solidification, cooling then remove and clean the forming auxiliary material on the surface of mold meat;2-5 layers of carbon fiber fabric are laid on the surface of mold meat, and pre-prepared carbon fiber composite material framework is placed, and filler is used to fill and smooth the hollow part of the framework, then 2-5 layers of carbon fiber fabric are used to cover, vacuum bag film encapsulation is used to detect air tightness, and finally epoxy resin is injected, and co-curing is shaped.The application also discloses a kind of forming die prepared by the preparation method.

The present invention relates to the field of glass fiber reinforced plastics (FRP) technology, and more specifically, to a special gel-coated FRP sheet, a preparation method, and a production line. The special gel-coated FRP sheet comprises a base film, a transparent gel-coat layer, and a functional gel-coat layer, wherein the transparent gel-coat layer is located between the base film and the functional gel-coat layer. The transparent gel-coat layer comprises a thermosetting acrylic-modified unsaturated polyester resin and a photoinitiator, while the functional gel-coat layer comprises a thermosetting acrylic-modified unsaturated resin. The transparent gel-coat layer protects the functional gel-coat layer and significantly improves the corrosion resistance, aging resistance, and scratch resistance of the special gel-coated FRP sheet. The method and production line can achieve rapid and continuous production of FRP sheets, effectively improving production efficiency.

The utility model relates to the technical field of artificial stone product production, and discloses an artificial stone product forming production line which comprises gel coat spraying equipment, mold closing equipment, forming equipment and demolding equipment which are arranged in sequence, the production line further comprises a conveying line, the conveying line sequentially passes through the gel coat spraying equipment, the mold closing equipment, the forming equipment and the demolding equipment, the conveying line comprises a conveying frame and a conveying moving part, the conveying moving part is used for bearing a mold, a conveying rail is arranged on the conveying frame, and the conveying moving part is arranged on the conveying rail and can move along the conveying rail. The mold conveying device has the beneficial effects that the time consumed for conveying the mold among equipment is saved, the overall production time is shortened, and the production efficiency is improved.

The utility model relates to the technical field of Dewar containers, and discloses a composite material Dewar container containing liquid nitrogen, which comprises a Dewar tank, the Dewar tank comprises an inner layer, a first vacuum layer and an outer layer from inside to outside, an annular groove is arranged in the middle of the upper surface of the Dewar tank, and a sealing ring gasket is fixedly connected with the inner wall of the annular groove. When the Dewar container containing the liquid nitrogen is used, the weight is reduced, the corrosion resistance and the low-temperature resistance are better due to the fact that the composite material glass fiber reinforced plastic is adopted, gas leakage and external pollution are effectively prevented through the design of the blanking cap and the sealing ring gasket, the sealing performance of the container is improved, and the service life of the container is prolonged. Through the design of the double vacuum layers of the first vacuum layer and the second vacuum layer and the cooperation of the gel coat, the effect of sealing tiny holes and defects can be achieved, the heat insulation effect is further enhanced, heat conduction is reduced, the retention time of liquid nitrogen is longer, and energy loss is reduced.

The utility model belongs to the technical field of gel coat flat plate processing, and particularly relates to a fiber feeding tool for gel coat flat plate processing, which comprises a feeding tool body, the feeding tool body comprises a movable frame, a vertical frame is arranged above the movable frame, a hanging seat is arranged at the end part of the movable frame, a hanging bracket is arranged below the hanging seat, and a clamping device is arranged below the hanging bracket. A lifting assembly is arranged below the lifting frame and comprises a mounting frame, movable and adjustable lifting plates are arranged in the mounting frame, an adjusting assembly used for adjusting synchronous movement of the two lifting plates is arranged in the mounting frame, and a connecting chain is arranged at the end of each lifting plate. A bearing assembly used for bearing the rollers is arranged below the connecting chain. The limiting roller adjusting device is reasonable in design, simple in structure, convenient to machine and capable of being adjusted in a matched mode according to limiting rollers of different specifications and sizes, it is ensured that a workpiece is located in the middle position, the possibility that the workpiece shakes due to the unstable gravity center is avoided, the working progress is improved, and the use requirement is met.

The utility model belongs to the technical field of gel coat flat plate processing, especially relate to a film deviation rectifying mechanism for gel coat flat plate processing, the upper part of support frame is provided with a plurality of conveying assemblies, the conveying assembly includes the carrier plate, is equipped with the conveying roller between two carrier plates and is provided with the positioning assembly with deviation rectifying limiting function between two adjacent conveying assemblies, the multifunctional composite mechanism is provided on the conveying assembly in the middle position, the multifunctional composite mechanism includes the leveling and laying mechanism for preventing vertical jumping and the end edge limiting mechanism with limiting function to the workpiece end face. The utility model has the advantages of reasonable design, simple structure, convenient processing, and can limit the workpiece vertically on one hand, prevent it from jumping, on the other hand, can carry out a certain degree of deviation rectifying treatment to the workpiece corner, guarantee the laying work progress, ensure the tightness of cooperation between workpieces, guarantee the forming quality of workpiece, satisfy the using requirement.

The invention provides a wind power generator cabin cover production process, and relates to the field of wind power generator cabin cover molding, and the wind power generator cabin cover production process comprises the following steps: spraying a gel coat on a production mold, and curing to form a gel coat layer; auxiliary parts are arranged in the production mold; the arranged production mold is covered with a vacuum bag film and sealed; the space in the vacuum bag film is vacuumized through a flow guide pipe; a molding injection material is injected into the production mold through a glue injection guide pipe; after glue injection is finished, the extraction opening and the glue injection opening are blocked, and a vacuum environment is kept for curing; the vacuum degree is regulated and controlled in stages based on molding injection material parameters; after curing is completed, the vacuum bag film is removed; and taking out the formed cabin cover of the wind power generator from the production mold. The process requirements of different stages can be met by regulating and controlling the vacuum degree in stages, and the quality of the formed cabin cover of the wind power generator is guaranteed.

The utility model belongs to the technical field of gel coat flat plate processing, and particularly relates to a fiber edge cutting and collecting device for gel coat flat plate processing, which comprises a frame body, a conveying roller, an edge cutting roller and a collecting assembly are sequentially arranged above the frame body along the advancing direction of a workpiece, and the collecting assembly comprises a moving assembly capable of longitudinally moving and adjusting. A collecting mechanism is arranged at the outer side moving end of the moving assembly and comprises a supporting plate, a collecting roller is arranged above the supporting plate, a transition roller is arranged on one side below the collecting roller, a self-adjusting assembly is arranged below one side of the transition roller, and a limiting roller is arranged at the output end of the self-adjusting assembly. The edge cutting device is reasonable in design, simple in structure and convenient to machine, can replace manual work to complete convenient collection of materials after edge cutting, reduces labor intensity, saves labor cost, improves work progress, and fully meets use requirements.

The invention relates to the technical field of glass fiber reinforced plastic products, in particular to a processing method of a glass fiber reinforced plastic battery skin plate. According to the technical scheme, the method comprises the following steps that (1) a film base layer is arranged, specifically, a rolled film is unfolded through a flattening roller and flattened through a conveying roller, and linear conveying is conducted under the action of the conveying roller; (2) setting a gel coat, namely uniformly laying the gel coat with the corresponding color on the flattened film through a conveying frame and a transverse scraper; and (3) a resin blade coating forming step: the arranged resin is matched with a limiting assembly in the width direction, and a plate resin base layer is formed through a blade coating mode. The production process has the advantages that the integrated continuous processing effect is achieved in the production process, the continuity of product procedures in the forming process is guaranteed, it is guaranteed that the quality stability of products is better, and the texture effect of the surfaces of the products can form the composite grain effect when the cloth-based products are produced.

The utility model discloses an epoxy vinyl resin tile which comprises a tile body, and the tile body is sequentially provided with a first epoxy vinyl resin layer, a second epoxy vinyl resin layer and a third epoxy vinyl resin layer from top to bottom. A gel coat resin layer is arranged on the upper surface of the first epoxy vinyl resin layer; first glass fiber reinforced gridding cloth is arranged between the first epoxy vinyl resin layer and the second epoxy vinyl resin layer; a second glass fiber reinforced gridding cloth is arranged between the second epoxy vinyl resin layer and the third epoxy vinyl resin layer; and a polyester film layer is arranged at the bottom of the third epoxy vinyl resin layer. The gel coat resin, the glass fiber gridding cloth and the polyester film are additionally arranged between the epoxy vinyl resin layers and on the upper surface and the lower surface of the epoxy vinyl resin layers respectively, so that the heat resistance, the heat preservation performance, the waterproof performance, the structural strength and the corrosion resistance of the resin tile can be improved; meanwhile, the tile body is structurally improved, and limiting protrusions and limiting grooves are additionally arranged, so that the sealing performance of the front and back adjacent tiles is good, and falling off and displacement between the resin tiles are not prone to occurring.

The invention relates to the technical field of gel coat flat plate production, in particular to an automatic fiber roller changing device for a gel coat flat plate. The device further comprises a replacing mechanism, a splicing mechanism and a tension adjusting mechanism, the splicing mechanism and the tension adjusting mechanism are both installed on the replacing mechanism, and the conveying mechanism is installed on the tension adjusting mechanism. Glass fibers are released through the replacing mechanism and sequentially penetrate through the splicing mechanism, the tension adjusting mechanism and the conveying mechanism, the glass fibers are conveyed into a production line through operation of the conveying mechanism, meanwhile, the tension of the glass fibers is adjusted through the tension adjusting mechanism, and the stability of the glass fibers is guaranteed; after the glass fibers on the raw material roller are completely discharged, the raw material roller is replaced by the replacing mechanism, and then the glass fibers on the new raw material roller are connected with the glass fibers on the equipment through the splicing mechanism, so that a subsequent production line continuously runs, and the practicability of the equipment is improved.

The present invention relates to a preparation method of a stain-resistant artificial stone washbasin; in the present invention, modified T3302 resin, a coupling agent, and an initiator are mixed and stirred, and then a filler, an accelerator, and a curing agent are added continuously, and vacuum is pumped to obtain a filler; after a mold release agent is evenly applied to the inner surface of the mold, IN119003S signal white gel coat is evenly sprayed in the mold; the filler is poured into the mold and filled solidly, left standing, vacuum defoamed, dried and cured, then cooled to room temperature, demolded, and surface-treated to obtain a stain-resistant artificial stone washbasin; the modified T3302 resin is prepared by stirring and reacting orthophthalic unsaturated polyester resin, acryloyl chloride, and aluminum trichloride, and then 5-amino-3(2H)-isothiazolinone, 2-methylamino-5-pyridine borate, and triethylamine are added continuously; the artificial stone washbasin prepared by the present invention has high hardness, low water absorption, and excellent stain resistance.

The application provides a modified carbon fiber material and a preparation method thereof, and comprises the following steps: S1, dissolving a polyurethane reinforcing additive in anhydrous ethanol to obtain a first mixed solution; S2, pouring the first mixed solution into EL2 epoxy lamination resin, stirring to obtain a second mixed solution, heating the second mixed solution, and then cooling and preparing; S3, uniformly stirring GC polyester gel coating and coating the GC polyester gel coating on a mold, and standing until the surface is not sticky; S4, uniformly coating the second mixed solution on the surface of the GC polyester gel coating; S5, covering twill carbon fiber material on the GC polyester gel coating coated with the second mixed solution, and brushing a layer of modified EL epoxy resin on the twill carbon fiber material; S6, repeating step S5 at least once; S7, extruding the mold to discharge air bubbles, and brushing off the excess modified EL epoxy resin with a brush; and S8, standing and demolding to obtain the modified carbon fiber material. The modified carbon fiber material has strain rate sensitivity, and can improve the brittleness of a traditional carbon fiber material.

The application relates to the technical field of wind power generator part manufacturing, in particular to a high-adhesion wind power generator cabin cover inner layer gel coat spraying process, which comprises the following steps: base pretreatment: performing dry grinding, blowing clean dust and plasma treatment on the surface of a wind power generator cabin cover glass fiber reinforced plastic base; gel coat preparation: mixing raw materials according to a formula to obtain gel coat slurry, wherein the formula comprises modified unsaturated polyester resin, composite adhesion promoter, nano composite reinforcing filler, composite curing agent, composite promoter, defoaming agent and leveling agent; the composite adhesion promoter is composed of gamma-aminopropyl triethoxysilane and glycidyl methacrylate; and the nano composite reinforcing filler is a nano powder with a surface modified by a silane coupling agent; the composite adhesion promoter compound system is adopted, the nano composite reinforcing filler and the organic modifier are matched to construct a multi-element composite modified structure, and the interface bonding capacity of the gel coat and the glass fiber reinforced plastic base is fundamentally strengthened.

The invention provides gel coat resin as well as a preparation method and application thereof. The gel coat resin is prepared from, by weight, 55-80 parts of unsaturated polyester resin, 10-40 parts of filler and 1.84-5 parts of auxiliaries, the filler can be a mixture of aluminum oxide and titanium dioxide, and the mass ratio of the aluminum oxide to the titanium dioxide can be (1: 3.2)-(3: 1). The gel coat resin provided by the embodiment of the invention is prepared from unsaturated polyester resin, filler and auxiliaries, and the filler is a mixture comprising aluminum oxide and titanium dioxide. According to the embodiment of the invention, by adjusting the proportion of the filler and controlling the mass ratio of aluminum oxide to titanium dioxide in the filler, the obtained gel coat resin has good aging resistance, low color difference value, appropriate hardness and the like, so that the service life of the gel coat resin is prolonged.

The invention relates to the technical field of glass fiber reinforced plastics, in particular to a special gel coat glass fiber reinforced plastic plate, a preparation method and a production line. The special gel coat glass fiber reinforced plastic plate comprises a bottom film, and further comprises a transparent gel coat layer and a functional gel coat layer, and the transparent gel coat layer is located between the bottom film and the functional gel coat layer; the transparent gel coat layer is prepared from thermosetting acrylic modified unsaturated polyester resin and a photoinitiator, and the functional gel coat layer is prepared from thermosetting acrylic modified unsaturated polyester resin. The transparent gel coat layer can protect the functional gel coat layer, so that the corrosion resistance, aging resistance, scratch resistance and other properties of the special gel coat glass fiber reinforced plastic plate can be well improved; the method and the production line can realize rapid and continuous production of the glass fiber reinforced plastic plates, and effectively improve the production efficiency.

The invention relates to the technical field of resin raw material processing, and particularly discloses drying treatment equipment for styrene-free gel coat resin raw materials, which comprises a frame and a cross beam, the cross beam is mounted in the middle of the frame, and a plurality of limiting clamps are mounted on the left and right sides of the upper surface of the frame and the upper surface of the cross beam at equal intervals from front to back; the limiting clamps limit the water-cooled plastic strips, and a drying mechanism is installed on the upper surface of the frame and located above the cross beam. Stubborn water drops on the surface of a plastic strip can be efficiently vibrated off, primary water removal of the plastic strip is completed, the pressure of a subsequent air drying link is effectively shared, the air drying time is greatly shortened, and the overall production efficiency of gel coat resin particles is remarkably improved; dynamic adjustment of the air blowing angle is achieved, the air blowing range of the air knife is effectively expanded, the air knife is matched with the curved surface structure characteristics of the plastic strips, air drying dead angles are eliminated, comprehensive and uniform drying of the plastic strips is achieved, and it is ensured that the humidity of gel coat resin particles obtained after the dried plastic strips are cut into particles reaches the standard and meets the use standard.

The application provides a solid glue coating, a preparation method and application thereof, and a preparation method of a surface-coated composite material, and belongs to the technical field of functional materials.The solid glue coating provided by the application comprises the following preparation raw materials in mass fractions: 50-95 parts of base resin powder, 1-20 parts of graphene oxide-nano titanium dioxide composite material, 1-20 parts of barium sulfate, 0.1-10 parts of a curing agent, 0.01-5 parts of a defoaming agent, and 0.01-5 parts of a wetting and leveling agent.The solid glue coating provided by the application is a high-thermal-conductivity and high-fluidity composite resin powder, can be coated on the inner surface of a mold in the forming stage of a composite material product, and is heated and solidified together with a composite material matrix, wherein the solid glue coating forms a uniform, smooth and dense coating on the surface of the composite material matrix, is perfectly fused with the composite material matrix, and thus an integrally-formed surface-coated composite material is obtained, and the operation is simple and environment-friendly.

The application provides a wind power generator cabin production process and relates to the field of wind power generator cabin forming. The process comprises the following steps: spraying glue on a production mold and curing to form a glue layer; arranging auxiliary components in the production mold; covering a vacuum bag film on the production mold after the arrangement is completed and sealing; performing a vacuumizing operation on the space in the vacuum bag film through a flow guide pipe; injecting a forming injection material into the production mold through a glue injection pipe; plugging the air outlet and the glue injection port after the glue injection is completed, maintaining a vacuum environment, and curing; controlling the vacuum degree in stages based on the parameters of the forming injection material; removing the vacuum bag film after the curing is completed; and taking out the formed wind power generator cabin from the production mold. The application can adapt to the process requirements of different stages by controlling the vacuum degree in stages, so as to ensure the quality of the formed wind power generator cabin.

The utility model discloses a glue spraying mechanism of a wind power blade automatic cloth paving device, which comprises a first rack, the upper end of the first rack is provided with a turnover mechanism, the turnover mechanism comprises a first driving motor, a first mounting rack and a second mounting rack, the first mounting rack is used for being mounted on a hoist, and the second mounting rack is used for being mounted on a second hoist; the first driving motor is arranged at the right end of the first mounting frame, the second mounting frame is arranged at the upper end of the first rack, the first mounting frame and the second mounting frame are connected through a first rotating shaft, and the first driving motor is in driving connection with the first rotating shaft; and the glue spraying mechanism is arranged at the right lower end of the first rack. According to the glue spraying mechanism of the automatic cloth paving device for the wind power blade, the fifth servo electric cylinder drives the second sliding table base to do reciprocating motion, and meanwhile, the sixth servo motor extrudes the first pressurizing spray head, so that the first glue coating tank sprays a glue coating through the first glue spraying opening, and the glue coating is uniformly sprayed to a wind power blade mold cavity.

The present invention discloses a method for preparing a high-temperature resistant epoxy gel coat for a wind turbine blade mold, and belongs to the technical field of epoxy gel coat preparation. The method for preparing a high-temperature resistant epoxy gel coat for a wind turbine blade mold comprises the following steps: Step 1: vacuum dehydrating the epoxy resin to obtain a pretreated resin; Step 2: heating the pretreated resin, then adding a modified toughening agent, fumed silica, and a silane coupling agent in sequence, mixing and stirring to obtain a mixture; Step 3: cooling the mixture, then adding a curing agent, stirring at a low speed, vacuum degassing, coating, curing, spraying a modified wear-resistant agent solution, and drying to obtain a high-temperature resistant epoxy gel coat for a wind turbine blade mold. The epoxy gel coat prepared by this method has excellent toughness, high-temperature resistance, chemical corrosion resistance, and wear resistance.

The invention relates to the technical field of glass fiber reinforced plastic products, in particular to a glass fiber reinforced plastic battery skin plate. The technical scheme adopted by the invention is as follows: the film is processed by the following method: an integrated continuous device is adopted for uninterrupted processing in the processing process, and the method comprises the following steps: 1) setting a film base layer: a roll-shaped film is unfolded by a flattening roller and is flattened by a conveying roller, and linear conveying is performed under the action of the conveying roller; (2) setting a gel coat, namely uniformly laying the gel coat with the corresponding color on the flattened film through a conveying frame and a transverse scraper; and (3) scraping and forming the resin. The invention has the advantages that: integrated continuous processing is realized, the continuity of product procedures in the forming process is ensured, the quality stability of the product is better, the texture effect of the surface of the product can form a composite texture effect when a cloth-based product is produced, the mechanical property of the product can be obviously improved, and the production cost is reduced. And the durability is higher.

The present invention discloses the preparation and application of an emulsified, compacting, and feeding agent for concrete, belonging to the technical field of concrete admixtures. The emulsified, compacting, and feeding agent for concrete comprises modified latex powder, polyethylene glycol, and water. The modified latex powder is prepared by coating calcium sulfate and aluminum sulfate powder with a gel coat solution composed of aluminum hydroxide and a polymer emulsion, followed by drying. The modified latex powder, polyethylene glycol, and water are mixed and stirred to produce the emulsified, compacting, and feeding agent for concrete. The emulsified, compacting, and feeding agent for concrete of the present invention controls and adjusts the expansion efficiency of concrete, avoiding early ineffective expansion. The polymer emulsion also increases the toughness and waterproof properties of concrete, significantly improving the crack resistance and waterproof properties of concrete.

The invention provides an epoxy gel coat composition and a preparation method and application thereof.The epoxy gel coat composition comprises a first part and a second part, and the first part comprises epoxy resin, filler, a defoaming agent, a thixotropic agent, a wetting dispersant and a first solvent; the second part comprises an aromatic amine curing agent, an accelerant and a second solvent; and the weight ratio of the first part to the second part is 100: 20 to 100: 50. The epoxy gel coat composition specially designed by the invention has excellent high temperature resistance, excellent polishing performance and excellent collision damage resistance.