76results about How to "Avoid foaming" patented technology

The invention belongs to the technical field of sodium ion battery negative electrode materials, and particularly relates to an amylocellulose composite hard carbon material as well as a preparation method and application thereof. Pre-oxidation and pre-carbonization are carried out step by step, the starch cellulose composite hard carbon material is prepared through low-temperature pre-oxidation, a ball milling method, low-temperature pre-carbonization and a high-temperature pyrolysis method in sequence, the obtained starch cellulose composite hard carbon material is used for preparing the negative electrode of the sodium-ion battery, and then the sodium-ion battery is further constructed. An electrochemical performance test result shows that the obtained sodium ion battery has excellent first-circle coulombic efficiency, cycle performance and rate capability; moreover, the preparation method of the starch cellulose composite hard carbon material is simple to operate, can perform a pre-oxidation process in an air atmosphere, does not need additional oxidation treatment, is environment-friendly, can prevent the starch cellulose composite material from melting and foaming in high-temperature pyrolysis, improves the cycling stability of the material, and is suitable for industrial production.

The invention relates to the technical field of epoxy resin coatings, and discloses an inorganic composite nano anticorrosive coating material and a preparation method thereof. The inorganic composite nano anticorrosive coating material comprises a component A, a component B and a component C, wherein the component C is obtained by mixing a functional modified inorganic composite nano material and aluminum sorbate; the component A is obtained by mixing modified epoxy resin, a defoaming agent and an anti-settling agent, and the component B comprises a polyamide curing agent. The inorganic composite nano anticorrosive coating material disclosed by the invention has excellent toughness, wear resistance, corrosion resistance, antibacterial and antifouling properties and ultraviolet resistance.

The invention discloses a water-based composite adhesive and application thereof, and relates to the technical field of glue production, the water-based composite adhesive comprises the following raw material components by mass: 0.5-1.2 parts of a first cross-linking monomer, the first cross-linking monomer comprises a propylene compound having a ketone carbonyl group; 0.25 to 0.6 part of a second crosslinking monomer, wherein the second crosslinking monomer comprises an alkyl compound with at least two hydrazide groups; 1.1 to 2.8 parts of a surfactant; 30-45 parts of acrylic ester with a glass transition temperature of-70 DEG C to 60 DEG C; 1-2 parts of acrylic acid; 5 to 10 parts of acrylate with a glass transition temperature of 106 to 158 DEG C; 0.3 to 0.5 part of an initiator; and 35-45 parts of water. After a base material is coated with the water-based composite adhesive, excellent adhesion can be formed on the base material, the heat resistance is excellent, and a product is not prone to wrinkling and bubbling under high-temperature processes such as hot pressing.

The invention relates to a gold-stamped anti-oxidation alumite film and a gold-stamped printed matter, the gold-stamped anti-oxidation alumite film comprises a base material film layer, a release layer, a color layer, an aluminum-plated layer and a glue layer which are connected in sequence, and an anti-oxidation graphene film layer is arranged between the aluminum-plated layer and the glue layer. Thus, the anti-oxidation graphene film layer is arranged between the aluminum-plated layer and the adhesive layer, the main component of the anti-oxidation graphene film layer is graphene, graphene does not react with acid and alkali, and excellent chemical inertness and chemical stability are achieved; meanwhile, the graphene also has in-plane impermeability, so that substances in the solution cannot permeate, and excellent physical isolation and anti-oxidation effects can be achieved. The high thermal conductivity of the graphene can also avoid the problem of poor heat dissipation of the substrate caused by the addition of the coating. Through the arrangement of the anti-oxidation graphene film layer, the technical problem that oxidation occurs after conventional alumite gold stamping is well solved.

The invention provides a 1, 4-polyisoprene dispersion system, a pharmaceutical active component and application of the 1, 4-polyisoprene dispersion system and the pharmaceutical active component. The dispersion system keeps stable in a gastric acid environment of mammals, does not separate out 1, 4-polyisoprene clots, has no oral toxicity to mammals, and does not contain sensitizers; and the 1, 4-polyisoprene dispersion system comprises a 1, 4-polyisoprene solution dispersion system and a 1, 4-polyisoprene emulsion dispersion system. The 1, 4-polyisoprene dispersion system provided by the invention can be used as an active pharmaceutical ingredient for preparing drugs for treating chronic metabolic diseases including atherosclerotic cardiovascular and cerebrovascular diseases, type 2 diabetes, hypercholesteremia, hypertriglyceridemia, fatty liver, colitis, obesity and polycystic ovarian syndrome.

The utility model relates to the technical field of house repairing, in particular to a waterproof layer structure for repairing an old house, which comprises a base surface layer and a concrete mortar layer, and a waterproof layer is arranged between the base surface layer and the concrete mortar layer. The waterproof layer comprises a cement-based permeable crystallization self-healing coating layer, an asphalt waterproof coating layer is arranged on the cement-based permeable crystallization self-healing coating layer, and a gridding cloth layer is arranged on the asphalt waterproof coating layer. The utility model has the characteristics that the structure is simpler and more reasonable, blistering and peeling can be better avoided, the waterproof effect can be improved, and moisture overflow can be avoided.

The invention relates to the technical field of battery negative electrode materials, in particular to a silicon-carbon composite material precursor and a preparation method and application thereof. The silicon-carbon composite material precursor comprises modified starch particles and a plurality of silicon-based material particles, the silicon-based material particles are at least embedded in the modified starch particles, the modified starch particles comprise carbon nanomaterials and starch, and the carbon nanomaterials and the starch are bonded and connected through oxygen-containing functional groups. The bonding connection of oxygen-containing functional groups limits the free movement of starch molecules and inhibits starch foaming. Therefore, the thickness of the carbon wall around the silicon particles in the silicon-carbon composite material prepared from the silicon-carbon composite material precursor is uniform. The preparation method comprises the following steps: carrying out surface modification treatment on the carbon nanomaterial, then mixing the carbon nanomaterial with starch, mixing the carbon nanomaterial with silicon-based material particles, and finally carrying out granulation treatment, so that the modified carbon nanomaterial and oxygen-containing functional groups in the starch form bonding connection. When the precursor is used for preparing the silicon-carbon composite material, the comprehensive performance such as conductivity, capacity and stability can be improved.

The utility model discloses amine liquid recovery equipment which comprises a tank body and a heat exchange pipe, and the tank body is provided with a first inlet used for adding an amine-containing solution, a second inlet used for adding a reaction material, a flushing opening and an amine liquid recovery opening. And the heat exchange pipe extends into the tank body and is spaced from the bottom of the tank body. An amine-containing solution is added into the tank body through the first inlet, alkaline reactants such as soda ash or caustic soda and the like are added into the tank body through the second inlet, the alkaline reactants and thermostable salt in the amine-containing solution are subjected to an acid-base neutralization reaction, active amine bound by the thermostable salt is released, and meanwhile acid radical ions and positive ions of alkali form sodium salt or sylvite. The heating low-pressure steam is conveyed to the heat exchange pipe, the heat exchange pipe extends into the tank body, the amine liquid in the amine-containing solution is evaporated through evaporation, the evaporated gas phase recycles the amine liquid through the amine liquid recycling port, the concentration of the amine liquid obtained through evaporation is high, and the absorption effect of acid gas can be ensured.

The utility model relates to the related technical field of building door and window installation tools, in particular to a tool for controlling the plastering squareness of door and window openings, which comprises a door and window frame and a plastering pre-embedded square supporting plate movably installed on the door and window frame, and a splicing frame and a squareness control assembly are movably installed on the periphery of the plastering pre-embedded square supporting plate. The door and window frame is installed on the door and window frame; according to the building door and window installation tool, the door and window frame is integrally installed in the pre-embedded plastering pre-embedded square supporting plate and the splicing frame, the horizontal deviation of the building door and window installation tool is prevented, foaming, plastering, sealant treatment and the like at door and window openings can be reduced, and the construction efficiency is improved. The building doors and windows only need to be integrally embedded and installed, the multiple flatness and perpendicularity control detection rate of tools such as an m guiding rule, a leveling rod and a gradienter is reduced, tools are not needed for adjustment after installation, the squareness of hole plastering is high, and the installation deviation of the building doors and windows is avoided.

The invention relates to an aluminum honeycomb panel six-face seamless integrated forming paint spraying process which comprises the steps of plain panel inspection, cleaning, anti-corrosion treatment, edge sealing and adhesion primer polishing, then polishing, spraying of high-definition primer, polishing and color repairing, and finally spraying of finish paint after polishing is completed. Then the upper panel and the lower panel are folded into a point to play a supporting role, and then edge sealing is carried out, so that the connected seam is not located at the edge seam position of each aluminum honeycomb panel, in this way, the internal seamless integrated forming process is achieved through multiple times of polishing and primer spraying, the room temperature is adjusted through heat of a drying box, and dust prevention operation is carried out through liquid obtained after cleaning; the paint spraying six surfaces are seamlessly and integrally formed, the overall performance is good, resources are saved, and the coating smoothness in the spraying process is good.

The invention discloses a drying and cooling device for varnished wire processing, and relates to the technical field of varnished wire processing equipment.The drying and cooling device comprises a winding machine, a drying machine and a cooling box, and preheating pipes penetrate through the interior of the drying machine and the interior of the cooling box; and the preheating mechanism comprises a preheating pipe arranged at the feed port of the dryer. By arranging the preheating mechanism, the surface of the varnished wire entering the dryer can be preheated, the varnished wire is usually provided with a coating or a paint layer, the coating is very sensitive to temperature change, if the coating is directly exposed at high temperature, the coating is prone to cracking or peeling due to thermal shock, and the coating cannot be damaged. The expansion air bag is attached to the outer wall of the enameled wire in an expansion mode, so that the thermal shock effect caused by direct contact with high temperature can be avoided to a certain extent, temperature change is smoother, the risk of coating damage is reduced, and therefore the situation that the enameled wire directly enters a high-temperature drying machine to be dried, and consequently surface coating cracks or blisters or falls off is avoided; therefore, the molding effect of the dried enameled wire is improved.

The invention relates to the technical field of flocking adhesives, in particular to a flocking adhesive and a preparation method thereof.The flocking adhesive is at least prepared from, by weight, 15-35 parts of polyether polyol, 1-5 parts of hydroxy acrylic resin, 0.5-2.5 parts of chain extender, 20-70 parts of solvent, 0.1-1.0 part of dehydrating agent, 10-35 parts of curing agent, 0.1-1.0 part of initiator, 0.1-1.0 part of defoaming agent and 1.0-3.0 parts of catalyst. By optimizing a product formula system, the provided flocking glue can be directly used, a curing agent does not need to be additionally added in subsequent use, the drying speed is high, the firmness is excellent after drying, the ageing resistance is high, and the actual use requirements are better met.

The present invention relates to the field of mixing devices, in particular to a mixing device for sewage dosing treatment, comprising a medicine barrel and a self-priming pump at the top of the medicine barrel, and also comprising a reflux mechanism arranged in the medicine barrel, the reflux mechanism comprising a steel pipe, the side wall of the steel pipe is provided with a slot along its length direction, and the steel pipe is sleeved with an open linear bearing, the outer sleeve of the open linear bearing is sleeved with a collar, the outer wall of the collar is sleeved with a float, and the collar is matched with a straight wall at the opening of the open linear bearing, and a roller is rotatably connected to the inner side of the straight wall. The device continuously circulates liquid medicine between the liquid inlet pipe, the self-priming pump, the transfer pipe and the steel pipe for mixing, and the outlet of the reflux liquid medicine can be automatically maintained at the liquid level in the medicine barrel according to the liquid level height, thereby maintaining the working efficiency of the circulation mixing and suppressing the foaming phenomenon.

The present invention discloses a compression and aggregation treatment device for livestock and poultry manure and its use method, which belongs to the field of compression and aggregation treatment of livestock and poultry manure, and comprises an operation box having an installation space therein; a translation component which is detachably arranged on the top of the operation box; and a collecting component which is detachably arranged in the installation space of the operation box, and is used to collect livestock and poultry manure to be compressed and aggregated. The compression and aggregation treatment device for livestock and poultry manure of the present invention and its use method, through the arranged blowing component, will simultaneously drive the hook plate to move upward during the process of the overall lifting of the collecting component, and when the hook plate rises, the extrusion plate can squeeze the airbag, so that the airbag squeezes the gas into the nozzle, and blows air into the oscillation box through the nozzle, so as to further prevent the liquid of the livestock and poultry manure to be compressed and aggregated from bubbling through blowing.

The massage device comprises a main body and a massage ball, the massage ball is arranged on the main body and can rotate around a preset axis, the massage ball is provided with a massage face surrounding the preset axis and autorotation points arranged at the two ends of the preset axis, the massage face is used for massage, and the autorotation points are arranged at the two ends of the preset axis. And the autorotation point is shielded by the main body. According to the massage device in the embodiment of the utility model, the foot blistering of a user can be avoided, and the use experience of the user is improved.

The invention discloses a nylon material and its preparation method and application. The raw materials for preparation include: nylon material, flame retardant synergist, heat stabilizer, poly-olefin graft copolymer; nylon material includes polyphthalamide, polylaurolactam derivative, polyhexamethylene adipamide; the raw materials for preparation of polyphthalamide include phthalic acid and isophthalic acid mixture; flame retardant synergist includes at least one of modified MMP, lanthanum oxide, silicon flame retardant, zinc borate, stannate and MCA; modified MMP is MMP with silicone oil coated on the surface; heat stabilizer includes one of S-EED, Lugman H10, cuprous iodide and potassium iodide; poly-olefin graft copolymer includes at least one of grafted SEBS, grafted POE and grafted PE. The nylon material of the invention solves the problems of the welding material in the existing SMT surface mounting equipment technology that is easy to turn yellow at high temperature, the bonding line strength is low, and the welding time is easy to blister.

The invention belongs to the technical field of rubber degassing towers, and particularly relates to a styrene butadiene rubber degassing tower which comprises a tower shell, a bottom plate fixedly connected to the bottom of the tower shell, a conical cylinder rotationally connected to the center of the bottom plate, a support fixedly connected to the bottom of the bottom plate, and a conical roller, a plurality of sliding grooves are evenly formed in the outer side of the conical roller, and a blade is slidably connected into each sliding groove. A set of springs connected with the corresponding blades are arranged in each sliding groove, the conical roller is rotationally arranged in the conical barrel, the rotating axis of the conical roller deviates from the rotating axis of the conical barrel, the end of each blade is tightly attached to the inner wall of the conical barrel, the outer side of the top of the conical barrel is rotationally connected with a collecting ring, and the collecting ring is fixedly connected with the tower shell. A collecting opening inclining downwards is formed in the collecting ring, and a top cover is fixedly connected to the top of the tower shell. Negative pressure is continuously generated to suck out gas in hot-melt rubber by utilizing the conical roller and the conical cylinder with the deviated axis, and the phenomenon of expansion and foaming is inhibited in cooperation with centrifugal force generated by high-speed rotation.

The invention provides flame-retardant polycarbonate foam and a preparation method thereof, and belongs to the field of foaming materials.The method comprises the steps that a PC raw material and an optional flame retardant are melted and mixed to obtain a PC / flame retardant blend, and the PC / flame retardant blend is processed into a PC / flame retardant blend board; the PC / flame retardant blend plate is saturated under the condition of a physical foaming agent and high temperature, the high temperature is 180-240 DEG C, the saturation pressure is 5-30 MPa, cooling is performed under a certain condition after saturation, pressure relief foaming is performed after temperature balance, and the flame-retardant polycarbonate foam is obtained. According to the preparation method, the problem of foaming difficulty caused by PC crystallization induced by plasticizing in the existing preparation is solved, meanwhile, the saturation time is shortened by utilizing the higher diffusion rate of the physical foaming agent under the high-temperature condition, and the production efficiency is improved. The method is simple in process, environmentally friendly and beneficial to large-scale production and processing; the flame-retardant PC foam material has the advantages of temperature resistance, heat insulation, high flame retardance, good mechanical property and the like.

The invention relates to the field of new energy sodium ion battery energy storage devices, in particular to a spherical hard carbon material, a preparation method thereof and application of the spherical hard carbon material as a battery negative electrode material. The preparation method comprises the following steps: dissolving asphalt to form a uniform and compact coating shell layer on starch, controlling the thickness of the coating shell layer by adjusting the concentration of an asphalt solution, and forming a cross-linked structure in the asphalt and further enhancing the mechanical strength of the asphalt shell layer by utilizing oxidation cross-linking; meanwhile, in the heat treatment process, the starch is stably oxidized inside, so that the spherical structure is kept. Besides, during oxidation cross-linking, active free radicals and active small molecules generated by the starch are diffused from inside to outside and captured by the asphalt, so that the overall yield is further improved while the asphalt cross-linking in the shell layer is realized, and a skin-core structure formed by non-uniform asphalt oxidation is avoided. The method provided by the invention promotes the high value-added utilization of asphalt, further promotes the economic and sustainable large-scale preparation of hard carbon, and promotes the development of the energy storage industry.

The application discloses a kind of antifouling self-cleaning cooling multifunctional coating and preparation method thereof.Coating main component has: water-based commercial white paint, alpha phase phosphogypsum (alpha-HPG), water-based polyurethane (WPU), ethyl acetate (EA), stearic acid (SA), N, N-dimethylformamide (DMF).First, water-based commercial white paint and alpha-HPG are modified respectively, then slurry is prepared by using simple blending method at room temperature, and coating is plated by doctor blade method, i.e. the double functional composite coating with excellent hydrophobicity and non-energy consumption cooling effect can be prepared.

This invention provides a cleaning mechanism, comprising a conveying component and a cleaning device. The cleaning device includes a fixed frame, a sweeping component mounted on the fixed frame, a blowing component, and a suction component. The suction component is located between the sweeping component and the blowing component. The sweeping component includes a cylinder, a mounting bracket mounted on the cylinder, and a long brush fixed on the mounting bracket. In this cleaning mechanism, when a lithium battery is conveyed to the bottom of the cleaning device via the conveying component, the cylinder drives the mounting bracket to move downwards, thereby causing the long brush to block debris and loose dust on the surface of the lithium battery. The blowing component blows air to separate the dust from the lithium battery surface, and the suction component sucks in the dust blown away by the blowing component. When the lithium battery surface separates from the long brush, the long brush carries debris away from the lithium battery. This ensures effective cleaning of the lithium battery surface while improving cleaning efficiency, thereby increasing processing capacity. After cleaning, the lithium battery surface can be labeled, effectively preventing label bubbling.

The utility model relates to the technical field of colored crystal glass painting, in particular to colored crystal glass painting auxiliary equipment which comprises a workbench, and the top end of the workbench is connected with a mounting frame in a sliding mode. The spray painting mechanism can clean the surface of the glass before spray painting to improve the spray painting effect, and the spray painting mechanism is arranged on the inner wall of the mounting frame; according to the colored crystal glass painting device, the painting mechanism and the cleaning assembly are arranged, when colored crystal glass is painted, a first motor drives a cleaning brush to rotate to clean dust and impurities on the surface of the glass, the cleaning brush is made of a flexible material, and when the surface of the glass is cleaned, the glass is prevented from being abraded and scratched; the guide pipe is matched with the spray head to spray a cleaning solution on the glass, then the guide pipe is matched with the cleaning brush to clean impurities on the surface of the glass, the threaded cylinder is rotated to control the position of the cleaning brush, the impurities on the surface of the glass can be cleaned conveniently, and the spraying effect of the device is improved.

The present application relates to the technical field of deep treatment of brine for preparation of potassium hydroxide by electrolysis, and discloses a method and operation system for removing chlorate produced in preparation of potassium hydroxide by ion-exchange membrane electrolysis, step one: introducing the brine discharged from the electrolysis procedure into a buffer homogenizing tank, mixing after stirring, proportionally shunting through a double-path variable frequency pump, and respectively conveying to a titanium-based electrolytic cell and a dechlorination raw material buffer tank, the titanium-based electrolytic cell being supplied with nitrogen until the oxygen content in the cell is ≤0.5%; step two: starting the power supply of the titanium-based electrolytic cell, setting the initial cell voltage, adjusting the current density through a rectifier, and simultaneously dynamically adjusting the electrolysis parameters based on the free chlorine concentration in the brine to control the hydrogen production. The method and operation system for removing chlorate produced in preparation of potassium hydroxide by ion-exchange membrane electrolysis can accurately control the generation and residual amount of chlorate in the electrolysis system, avoid the chlorate from passing through the ion-exchange membrane into the cathode to cause the chlorate in the finished product to exceed the standard, and significantly improve the purity and quality grade of the potassium hydroxide product.

The invention relates to a motor vehicle having an active damping adjustment device, comprising at least one damper having a damping piston which can be moved back and forth in a main pipe having a hydraulic medium in the axial direction relative to the main pipe, the main pipe being arranged in a container pipe, wherein the intermediate pipe is arranged between the main pipe and the container pipe, the main pipe, the intermediate pipe and the container pipe are coaxially arranged in a three-pipe damping structure, and a damping piston is attached to the end of a piston rod.

This invention discloses a method for desulfurization by reacting hydrogen sulfide and sulfur dioxide in brine. Hydrogen sulfide and sulfur dioxide are introduced into a brine solution, and a liquid-phase Claus reaction is accelerated using a stirring paddle and steam to achieve rapid sulfur preparation and separation. Using the process method and apparatus of this invention, the sulfur dioxide and hydrogen sulfide gases are vigorously stirred in the brine solution by a bladed stirring paddle, which not only increases the contact area and reaction efficiency between the gas and liquid phases, but also solves the problem of difficult separation of sulfur suspension due to the salting-out effect. Furthermore, the process flow of this invention is simple and easy to operate, and the brine in the sulfur solution can be recycled after separation, reducing operating costs.

The utility model provides a dumpling wrapper multi-time re-pressing device capable of preventing bubbling, which belongs to the technical field of dumpling wrapper processing devices and comprises a processing base fixedly connected with a support frame; and the re-pressing adjusting assembly comprises a rotating column rotationally connected to the machining base, a rolling platform is fixedly connected to the top of the rotating column, a bevel gear ring is fixedly connected to the outer wall of the rotating column, and a first servo motor is fixedly connected to the machining base. According to the utility model, the rotating adjustment of the dumpling wrappers can be realized, so that the repeated re-pressing uniformity of the dumpling wrappers is improved, the re-pressing forming effect of the dumpling wrappers is ensured, and the flour in the storage cylinder can be uniformly spread on the dumpling wrappers by driving the storage cylinder filled with the flour to move back and forth during re-pressing processing of the dumpling wrappers; therefore, the distribution uniformity degree of the flour on the dumpling wrappers can be improved, the bubbling phenomenon of the dumpling wrappers is effectively avoided, and profiling processing of the dumpling wrappers is facilitated.

The utility model relates to the technical field of engine oil sump, especially an oil sump of in-line piston engine, an engine and an aircraft, the oil sump is installed in the lower part of engine crankcase body assembly, the oil sump is formed as a basin -like structure with the basically level inner bottom surface, the inner bottom surface of the oil sump is concave downward and forms the oil storage groove that the structure is further outward protruding relative to the outer bottom surface of the oil sump, the upper part inboard of the oil sump is provided with the oil return interface, the bottom of the oil storage groove is provided with the through oil drain hole, the oil drain bolt is sealed in the oil drain hole, the wide edge sealing pad is installed on the sealing edge contact surface of the oil sump and engine crankcase body assembly connection, and the width of wide edge sealing pad is greater than the width of sealing edge contact, the utility model simplifies the oil sump structure, so that can adapt to the large inclination of aircraft ±45 DEG movement, greatly reduces the oil leakage risk simultaneously, and reduces the maintenance cost.

The invention relates to a shock absorber (1) having a damping piston which can be moved back and forth in an axial direction relative to a main pipe having a hydraulic medium, the main pipe being arranged in a container pipe (5), an intermediate pipe being arranged between the main pipe and the container pipe (5), wherein the main pipe, the intermediate pipe and the container pipe (5) are coaxially arranged in a three-pipe damping structure (2), the damping piston is attached to the end of the piston rod, and the three-pipe damping structure (2) is equipped with a hydraulic end position damper and has a central valve block with two damper valve devices at the end thereof facing away from the piston rod. In order to improve the shock absorber (1) in terms of function and / or production technology, the central valve block is partially surrounded by an air spring which comprises an air spring housing surrounding the central valve block, and the three-pipe shock absorption structure (2) has a gas compensation volume at the end of the piston rod of the three-pipe shock absorption structure. And the gas compensation volume is arranged in an annular space between the intermediate tube and the container tube (5).

Provided is a newly constructed laser color-developing multilayer film, wherein the contrast between the printed portion and the portion other than the printed portion is higher than before, the laser color-developing multilayer film having at least two layers, a layer (A) and a color-developing layer (B), wherein the layer (A) comprises an amorphous aromatic polyester resin and an antioxidant, wherein the content of the antioxidant is 0.05 to 4 parts by weight relative to 100 parts by weight of the amorphous aromatic polyester resin, and the color-developing layer (B) comprises a polycarbonate resin and a laser color-developing agent, wherein the laser color-developing agent is a metal oxide, and the content of the antioxidant in the color-developing layer (B) is less than 0.05 parts by weight relative to 100 parts by weight of the polycarbonate resin.

The present application relates to fire extinguishing agent production equipment technical field, specifically to a kind of wetting agent adding device for water-based fire extinguishing agent production, including U-shaped frame, the middle part of one end of the U-shaped frame is slidably connected with connecting plate, one end of the connecting plate is fixedly installed with adjusting mechanism, the adjusting mechanism includes fixed round plate, rotating round plate is rotatably installed in the upper portion of the middle part of the fixed round plate, a plurality of straight line guide grooves are evenly formed in the outer side of the middle part of the fixed round plate.The present application can accurately change the flow area by adjusting the opening and closing of the adjusting plate, allowing users to control the flow rate of wetting agent as needed;At the same time, by driving the screw with the motor, the discharge pipe is immersed below the liquid level to add material silently, avoiding the occurrence of foaming phenomenon when adding wetting agent from the source, and cooperating with the tapered conduit diameter reduction slow flow and baffle shunt structure, it can effectively disperse high viscosity additives, prevent agglomeration, make the wetting agent mixture more uniform, and thus greatly improve production efficiency and product quality.