40results about How to "Achieve anti-fog effect" patented technology

The invention relates to the field of preparation of super-hydrophobic or super-amphiphobic coatings, in particular relates to a preparation method of a sustainable anti-icing super-amphiphobic coating. The method comprises the following steps: 1, cleaning a substrate surface and carrying out sand-blasting roughening treatment; 2, blending epoxy resins, epoxy resin curing agents and a first solvent to obtain an epoxy resin solution; 3, dispersing submicron particles and nanoparticles into a second solvent, and then adding fluoroalkyl silane to obtain particle composite suspension liquid; 4, spraying substrate surface subjected to the treatment in step 1 with the epoxy resin solution obtained in step 2, and carrying out semi-curing on the epoxy resin adhesive; 5, spraying the substrate surface subjected to the treatment in step 4 with the particle composite suspension liquid obtained in step 3, and carrying out complete curing; 6, obtaining the sustainable anti-icing super-amphiphobic coating. The method has the advantages that the super-amphiphobic coating prepared on all substrate surfaces has good durability and fastness, and has sustainable anti-icing performance.

The invention discloses a preparing method of a glass antifogging coating, and belongs to the technical field of coating material preparations. The preparing method comprises the steps of firstly preparing an ethanol solution and methyltrimethoxysilane to a silane coupling agent solution, then preparing nanosilicon dioxide to nanosilicon dioxide sol, conducting a reaction between the nanosilicon dioxide sol and the silane coupling agent solution to prepare reaction liquid, using acetone to scrub a glass base material, afterwards, conducting ultrasonic cleaning and etching processing on the glass base material, conducting soaking and curing processing on the glass base material by using the reaction liquid to obtain a glass after coating processing, then using 1H,1H,2H,2H-Perfluorooctyltrimethoxysilane and absolute ethyl alcohol to soak the glass, and finally taking out the glass and drying the glass so as to obtain the glass antifogging coating. According to the preparing method of the glass antifogging coating, the glass antifogging coating has a strong hydrophobic characteristic and a strong self-cleaning ability; meanwhile, the coating has good durability and strong adhesive force; in addition, the coating good antifogging performance, under the vapor environment, completely no fogdrop adheres to the surface of the coating glass, thus the use value of the glass is sharply improved, and the glass antifogging coating has a broad application prospect.

The invention provides an anti-fogging and non-dropping film. The anti-fogging and non-dropping film comprises the following components in parts by weight: 70 to 200 parts of LLDPE (Linear Low Density Polyethylene), 15 to 50 parts of LDPE (Low-Density Polyethylene), 10 to 30 parts of EVA (Ethylene-vinyl Acetate), 20 to 50 parts of DOP (Dioctyl-Phthalate), 15 to 30 parts of BBP (Butyl Benzyl Phthalate), 0.5 to 2 parts of dibutyl tin dialurate, 3 to 7 parts of 2-ethylhexyl ester of epoxy fatty acids, 4 to 8 parts of tricresyl phosphate, 1.5 to 4 parts of glyceryl monolaurate, 1 to 6 parts of triphenyl phosphate, 0.2 to 0.8 part of ultraviolet light absorber, 0.5 to 0.9 part of calcium carbonate, 1 to 5 parts of cadmium stearate, 2 to 8 parts of barium stearate, and 0.2 to 0.7 part of sorbitan monostearate. The preparation method comprises the following steps of: drying LLDPE, LDPE and EVA under vacuum; adding other components; performing film blowing through a horizontal extruding and blowing method by utilizing a single-screw extruding film blowing device, thus obtaining the anti-fogging and non-dropping film. The anti-fogging and non-dropping film shows remarkable advantages that water on the surface of the film can flow into the soil along the surface of the film, thus moisture in the air in a greenhouse is reduced, and the anti-fogging effect is realized.

Provided is a hydrophilic sheet which has high wettability by water and from which adherent fouling substances or adherent foreign substances can be easily removed by washing with water. The sheet can be prevented from fogging with waterdrop adhesion. Also provided is a method of imparting high wettability by water to a surface of any desired substrate. The hydrophilic sheet comprises a base and, formed thereon, a layer of oblique columnar structures gathered together and protruding at an angle of elevation from the surface smaller than 90 DEG , the surface of the layer having a water contact angle of 10 DEG or smaller. The method of imparting ultrahigh hydrophilicity to a surface of a substrate comprises forming, on the substrate surface by oblique vapor deposition, a layer of oblique columnar structures gathered together and protruding at an angle of elevation from the surface smaller than 90 DEG .

The invention provides an antifogging film used for food package, which is characterized in that the antifogging film adopts an internal addition type production mode to directly add a migration type antifogging agent into a raw material resin during preparing. The antifogging film forms a three-layer structure by a production mode of co-extrusion molding, wherein the three-layer structure uses a transparent film layer as an intermediate layer, and sets an inside antifogging layer and an outside antifogging layer inside and outside the intermediate layer; and the inside antifogging layer and the outside antifogging layer both use ethylene-propylene binary copolymerized polypropylene or ethylene-propylene-butylene ternary polymerized polypropylene as materials, and are added with the migration type antifogging agent. The antifogging film has bilateral antifogging function with strong durability of antifogging effect, and can not be easily washed away or erased.

The invention relates to the field of material chemistry, and mainly provides an optical anti-fogging film with firm adhesion and good anti-fogging effect, and a preparation method and application thereof. Alternately coating and drying in sodium solution. The invention has good adhesion, light transmittance and anti-fog performance.

The invention relates to an anti-reflection and wear-proof lens capable of filtering blue light and a preparation method of the anti-reflection and wear-proof lens. The lens comprises a substrate, wherein first film layers, second film layers, third film layers, fourth film layers, fifth film layers, sixth film layers, seventh film layers, eighth film layers and ninth film layers are symmetrically and sequentially arranged on the inner surface and the outer surface of the substrate from inside to outside; the first film layers, the third film layers and the fifth film layers are all trititanium pentoxide layers with the thickness being 10-100 nm; the second film layers, the fourth film layers and the sixth film layers are all silicon dioxide layers with the thickness being 50-100 nm; the seventh film layers are metal layers with the thickness being 5-20 nm; the eighth film layers are high-hardness layers with the thickness being 10-50 nm; the ninth film layers are acrylic acid layers with the thickness being 5-15 nm. The preparation method comprises steps as follows: 1), the substrate is cleaned; 2), the inner surface and the outer surface of the substrate are plated with films respectively. The lens can filter harmful blue light and dazzle light, and the wear resistance and the antireflection property can be improved.

The invention discloses a long-acting glass antifog membrane. The antifog membrane is composed of polyacrylic acid, diethanolamine and an alkaline substance with the mass ratio of 30-60:1-10:5-15. The invention also discloses a preparation method for the antifog membrane. The preparation method comprises firstly dissolving polyacrylic acid, diethanolamine and the alkaline substance in water according to the ratio, then uniformly spreading the antifog agent on the glass surface through a brushing, spraying or scraping manner, and finally putting the glass in an environment of 50-150 DEG C and drying. In the heating drying process, polyacrylic acid and diethanolaine are subjected to crosslinking reaction, and a uniform transparent hydrophilic organic membrane is formed. The antifog membrane is good in stability, and is capable of keeping the antifog capability for a long time, and the antifog effect can last several months.

The present invention relates to an electrostatic mist eliminator. It includes the following several portions: a conduit, an air compressor, a condensation nucleus material treatment device, a high-voltage power supply capable of making condensation nucleus material microparticles be charged and a spray nozzle capable of spraying out said microparticles flow. Said spray nozzle is mounted in the frond end opening position of said conduit, and the condensation nucleus material treatment device is mounted is the front portion of said conduit and positioned in the back of spray nozzle, said air compressor is connected with rear end of said conduit, and said high-voltage power supply is mounted in the middle portion of said conduit. Besides, said invention also discloses an electrostatic mist elimination method by using said electrostatic mist eliminator.

The invention discloses a coating antifog eyeglass and a preparing method thereof. The coating antifog eyeglass comprises a substrate layer, an upper film antifog coating arranged above the substratelayer and a lower antifog coating arranged below the substrate layer, wherein the upper antifog coating comprises an upper corrosion crosslinking layer and an upper antifog layer, the upper film antifog coating is alternately formed by an upper corrosion crosslinking layer and an upper antifog layer, the lower antifog coating comprises a lower corrosion crosslinking layer and a lower antifog layer, and the lower antifog coating is alternately formed by a lower corrosion crosslinking layer and a lower antifog crosslinking layer. The coating antifog eyeglass has the advantages that since the antifog coatings provided with the corrosion crosslinking layers and the antifog layers are arranged on the upper surface and the lower surface of the substrate, through a unique process of the eyeglass,a coating material is prepared to soak the eyeglass, so that the surface hardness of the eyeglass is increased, the eyeglass is highly hydrophilic, the certain transparency of the surface of the eyeglass is maintained, then the antifog effect is achieved, a layer of uniform hydrophilic film is further formed, scattering of light is reduced, the transparency of the surface of the eyeglass is guaranteed, and thus a better antifog effect is achieved.

The invention discloses a lamp cover for blue light filtering, sterilization and reflection resisting and a manufacturing method thereof. The lamp cover comprises a substrate. A first film layer, a second film layer, a third film layer, a fourth film layer, a fifth film layer, a sixth film layer, a seventh film layer, an eighth film layer and a ninth film layer are successively arranged from inside to outside on the outer surface of the substrate. The first film layer, the fourth film layer and the sixth film layer are trititanium pentoxide layers. The thickness of each of the trititanium pentoxide layers is 10-100 nm. The second film layer, the fifth film layer and the seventh film layer are silicon dioxide layers. The thickness of each of the silicon dioxide layers is 50-100 nm. The third film layer is a metal layer of which the thickness is 5-20 n. The eighth film layer is a nano-silver layer of which the thickness is 5-20 nm. The ninth film layer is an acrylic acid layer of which the thickness is 5-15 nm. The manufacturing method comprises following steps of 1) cleaning the substrate; and 2) carrying out film coating on the outer surface of the substrate. The lamp cover is capable of effectively filtering harmful blue light and dazzling light, so reflection resisting performance can be improved and the lamp cover has a sterilization function.

The invention belongs to the field of preparation of anti-fog coatings, and particularly relates to an antibacterial anti-fog coating based on medical goggles and a preparation method of the antibacterial anti-fog coating. The preparation method comprises the following steps of: carrying out ultrasonic dispersion on h-BN to obtain nanosheets; loading ZnO-QDs on the nanosheets by taking zinc acetate as a raw material; taking the ZnO-QDs / h-BN nanosheets, styrene and methacrylic acid as raw materials, taking polymethylacrylic acid- 2-hydroxyethyl ester and lauryl sodium sulfate as auxiliaries, performing modification by using KH-550 to obtain modified ZnO-QDs / h-BN / polystyrene nanospheres; and preparing the composite polystyrene microspheres into a coating, and preparing an anti-fog coating ona substrate by using a dip-coating method. The antibacterial anti-fog coating is a hydrophobic coating, willnot leave spot on the surface, and is long in service life.

The invention discloses a composite anti-fog lens comprising a base material. A substrate and an upper anti-fog layer are formed successively on the outer surface of the substrate in a composite manner. The substrate layer is prepared by using aminosilane and organosilicone alkylamine. The upper anti-fog layer is prepared by mainly using a vinyl alcohol polymer, an acrylic polymer and organosilane. In addition, the invention also provides a method for preparing the composite anti-fog lens. According to the prepared composite anti-fog lens, the firm anti-fog coating is formed on the surface ofthe base material by the anti-fog film; with the organosilicone, the timeliness and wear resistance of the anti-fog film are improved substantially; on the basis of the base material surface treatmentby plasma activation, the bonding between the base material and the film layer is strengthened; the film prepared by using the dip coating method has high uniformity; and the composite anti-fog lenshas advantages of good anti-fog effect, quick effect, high durability, uniform film formation, high transparency, high thermal stability and good effect of thermal decomposition prevention.

The invention relates to sheets for mist dissipation of a cooling tower and a mist dissipation module. Each sheet comprises a sheet base body of a square structure, first assembly faces located on twoopposite sides of the sheet base body, second assembly faces located on the other two opposite sides of the sheet base body, and third assembly faces located between the two second assembly faces, wherein the second assembly faces are higher than the sheet base body and the first assembly faces, channels are formed between the adjacent third assembly faces as well as between the third assembly faces and the second assembly faces, and the two ends of the channels are provided with openings communicating with the upper spaces of the surfaces of the first assembly faces. The sheets for mist dissipation of the cooling tower are stacked sequentially from one side to the other side to form the mist dissipation module. The sheets can be mutually assembled to form the mist dissipation module. Heat exchange between mist and air is achieved through two perpendicular channels formed in the four side faces of the mist dissipation module, and a mist dissipation effect of a cooling tower product inthe cooling process is achieved.

The invention provides an anti-fall fogging prevention glass lens, and the lens is characterized in that the lens comprises an external glass lens, an internal glass lens, and supporting bars; the cross section of each supporting bar is shaped like L, and the supporting bars are located at the periphery of the inner wall of the external glass lens; the internal glass lens is put on the supporting bars; the external glass lens, the internal glass lens and the supporting bars form a closed vacuum layer through enclosing; the external surface of the external glass lens is provided with a fogging prevention coating layer; the fogging prevention coating layer comprises the following components by weight: 30-50 parts of polyvinylidene fluoride-acrylate grafted maleic anhydride; 10-25 parts of aqueous fluoro-silicone emulsion; 5-12 parts of inorganic nanoparticle sol; 1.5-2.5 parts of Texanol; 0.5-3 parts of alkaline silicate; 1-8 parts of propylene glycol; 20-40 parts of water. The lens provided by the invention is resistant to fall and impact, solves a problem that water mist is liable to condense on the surface of a lens when the products of the type are used during low temperature or in rain or snow days, achieves the fogging prevention effect, and is good in use effect.

The invention relates to a visual field clearing agent for an endoscope. The visual field clearing agent is a water solvent containing a high-molecular hydrophilic polymer, and comprises the followingcomponents in percentage by weight: 0.01 to 10 percent of mucopolysaccharide and / or mucopolysaccharide ester represented by a structural formula 1, wherein n = 1 to 80, R1 = H or Na, R2 = H or SO3Na,R3 = COCH3 or SO3Na; 0.9 to 4.5 percent of sodium chloride; and the balance of water.

The invention relates to a long-acting anti-fog silicon-based gel antifogging agent for a lens and a preparation method and application thereof. The antifogging agent is composed of a silicon-based sol solution and a long-chain polysaccharide / amino molecule crosslinking solution, the silicon-based sol solution comprises tetraethyl orthosilicate, cyclopentasiloxane, a polydimethylsiloxane crosslinking polymer and an organic solvent; the long-chain polysaccharide / amino molecule crosslinking solution comprises deionized water, polysaccharide molecules, polyvinyl alcohol, an amino molecule surfactant and a photocatalytic adhesive agent cerium oxide. Silica sol in the anti-fog sol is crosslinked with hydrophilic polysaccharide molecules and amino molecules to form a core-shell structure with arigid center and a soft long chain, water drops are enabled to evenly and rapidly expand whole surface through capillary action, and moisture absorption and antifogging effects are achieved; the long-chain polysaccharide / amino molecule is used as an end-capping reagent to inhibit the volatilization of a surfactant, cerium oxide is introduced to increase the surface adsorption force of silica sol,and the problem of poor light transmittance caused by poor adhesive force of an original water-based anti-fog coating film is solved.

The invention discloses an anti-radiation anti-reflection lampshade capable of filtering blue light and a manufacturing method thereof. The lampshade comprises a substrate, and a first film layer, a second film layer, a third film layer, a fourth film layer, a fifth film layer, a sixth film layer, a seventh film layer, an eighth film layer and a ninth film layer are sequentially arranged on the outer surface of the substrate from inside to outside. The first film layer, the fourth film layer and the sixth film layer are all trititanium pentoxide layers and are 10-100 nm thick. The second film layer, the fifth film layer and the seventh film layer are all silicon dioxide layers and are 50-100 nm thick. The third film layer is a metal layer and is 5-20 nm thick. The eighth film layer is an indium tin oxide (ITO) layer and is 10-100 nm thick. The ninth film layer is an acrylic acid layer and is 5-15 nm thick. The manufacturing method of the lampshade includes the following steps of (1) cleaning the substrate and (2) coating the outer surface of the substrate. The lampshade can filter the harmful blue light and dazzle light and has an anti-radiation property, and the anti-reflection performance can be improved.

The invention relates to novel UV (Ultraviolet) light-curable anti-fog resin as well as a preparation method and application thereof. The structural formula of the UV light-curable anti-fog resin is as follows: the formula is shown in the description, wherein the value range of x is 1 to 6; the value range of y is 2 to 8; the value range of z is 9 to 16; R1 is one or more of C1 to C13 alkyl groups; the molecular weight of the UV light-curable anti-fog resin is 1500 to 3200. Light-curable coating prepared by the novel UV light-curable anti-fog resin provided by the invention serving as a raw material has relatively good anti-fog performance, rigidity and adhesive force. The UV light-curable anti-fog resin provided by the invention is mutually dissolved with a photoinitiator, an auxiliary agent and the like; the prepared UV light-curable anti-fog coating can be cured into a film under the illumination of a UV lamp; a film body has the characteristics of high transparency, good film forming performance, good compatibility, good toughness and the like.

The invention relates to the technical field of mobile phone cover plates, in particular to an anti-reflection abrasion-resistant mobile phone cover plate capable of filtering out blue light and a preparation method thereof. The mobile phone cover plate comprises a substrate. The outer surface of the substrate is sequentially provided with a first film layer, a second film layer, a third film layer, a fourth film layer, a fifth film layer, a sixth film layer, a seventh film layer, an eighth film layer and a ninth film layer from inside to outside. The first film layer, the third film layer and the fifth film layer are all trititanium pentoxide layers, and the thicknesses of the first film layer, the third film layer and the fifth film layer are all 10-100 nm. The second film layer, the fourth film layer and the sixth film layer are all silicon dioxide layers, and the thicknesses of the second film layer, the fourth film layer and the sixth film layer are all 50-100 nm. The seventh film layer is a metal layer, and the thickness of the seventh film layer is 5-20 nm. The eighth film layer is a high-hardness layer, and the thickness of the eighth layer is 10-50 nm. The ninth film layer is an acrylic acid layer, and the thickness of the ninth film layer is 5-15 nm. The manufacturing method includes the following steps that firstly, the substrate is cleaned; secondly, the outer surface of the substrate is coated with films; and thirdly, the inner surface of the substrate is coated with films. The mobile phone cover plate can filter out harmful blue light and dazzle light, and abrasion resistance and anti-reflection performance can be improved.

The invention provides an antibacterial and antifog spray and a preparation method and application thereof. The antibacterial and antifog spray is prepared from the following raw materials in percentage by weight: 0.1 to 2.5% of modified nanocellulose, 0.1 to 2.5% of antibacterial agent, 1 to 5% of Tween series, and the balance of deionized water. The invention also discloses a preparation methodof the antibacterial and antifog spray and application in antibacterial and antifog aspects of automobile glass. The antibacterial and antifog spray has the advantages that by using the TEMPO type modified nanocellulose as a main component, the characteristics of high specific surface area, light weight, biocompatibility and degradability are fully utilized, so that the adhesion force between theantifog spray and a substrate is increased, and the excellent antifog property and antifog time can be stilled ensured after wiping and scouring; because of easiness in breeding of bacteria under thedamp condition, after the antibacterial agent is added into the antifog spray, the antifog function and the antibacterial function are combined, and the stability of the antifog property is improved.

The invention provides a red glass lens, which comprises a glass substrate. The inner and outer surfaces of the glass substrate are respectively provided with a first film layer, a second film layer and a third film layer in sequence, wherein the first film layer is a coloring layer, the second film layer is a hardening layer, and the third film layer is an antifog layer. The coloring layer is made of cadmium selenide, cadmium sulfide or mixed material of the two; the hardening layer is made of a diamond material; and the antifog layer is made of a water-soluble acrylic resin material. The coloring layer plays a role in protecting eyes from being dazzled by fluorescent light, and thus the red glass lens is suitable for being used as an eye protector for X-ray medical staffs; the second film layer is the hardening layer, so that hardness of the product can be improved, and possibility of surface bruise and scratch due to friction and scrapes can be reduced; and the third film layer is the antifog layer, and very high hydrophilia of the acrylic resin is utilized to reduce reflection and refraction caused by water mist, and thus an antifog effect is achieved.

The invention provides a visual field clearing agent for a medical endoscope. The visual field clearing agent comprises an aqueous solution of polyvinylpyrrolidone and sodium chloride, the particle size of a macromolecular hydrophilic polymer is 5-50 nanometers, and the content of the macromolecular hydrophilic polymer in percentage by weight is 0.2-1.2%; and the content of the sodium chloride inpercentage by weight is 0.1-5.0%. The preparation method comprises the following steps: dissolving polyvinylpyrrolidone in an aqueous solution at 40 DEG C, adding sodium chloride, stirring for 30-150minutes, and cooling to room temperature; and dropwise adding ethanol and stirring for 30 to 150 minutes to obtain clear liquid; the prepared clear liquid is simple in process, can prevent fog when being coated on the surface of a lens, and has a good clear effect.

The invention provides a visual sensor optical optimization device for an outdoor complex environment, which can improve the imaging definition of the visual sensor in an outdoor complex environment,ensures that the measurement precision is not influenced. The device comprises an optical filter, a light source, and protective glass, which are sequentially arranged from an image side to an objectside in front of a camera lens of the vision sensor, wherein the optical filter is a narrow-band optical filter, and the optical filter corresponds to the wavelength of the light source; the light source comprises an annular LED lamp strip which is coaxially arranged with the camera lens; the protective glass comprises optical glass, the two sides of the optical glass are respectively provided with an antireflection film corresponding to the wavelength of the light source, the outer side of the antireflection film close to the object side is provided with a protective film, and the invention also provides a correction method which can be used for correcting the refraction deviation generated on the optical optimization device so as to further ensure the measurement precision.

The invention relates to a low-temperature anti-fog viewing lens. The low-temperature anti-fog viewing lens comprises a cover plate flange, viewing lens glass and a base flange, wherein the viewing lens glass is fixedly connected between the cover plate flange and the base flange, the upper portion of the cover plate flange is fixedly connected with a threaded viewing lens in a sealed manner, and quartz glass is embedded in the threaded viewing lens; and a drying box is arranged in an interlayer between the cover plate flange and the threaded viewing lens and embedded in the inner wall face of the threaded viewing lens. According to the low-temperature anti-fog viewing lens, the anti-fog effect can be achieved by adopting common quartz glass, and special glass with vacuum in the middle does not need to be adopted, so that the cost is greatly saved; and the inner wall face of the threaded viewing lens with the quartz glass is filled with a drying agent, and the threaded viewing lens is screwed into the cover plate flange through the threads, so that the same anti-fog effect as middle vacuum double-layer structure glass is achieved, the sealing performance is good, the service life is long, and the replacement cost is reduced.

The invention discloses a cross-flow type water-saving fog-dispersal cooling tower, which belongs to the technical field of cooling towers, and comprises fillers arranged below a water sprinkling basin at intervals, and gaps between adjacent fillers form wet and hot airflow channels; the width of the filler is greater than that of the water spreading basin; each filler is folded to form an inverted U shape, and the folded surfaces are overlapped and attached to each other; a hinge mechanism used for controlling the folding faces to be opened is installed between the folding faces. The folding surface is unfolded to form a dry cold air flow channel; the hinge mechanism comprises a first hinge and a second hinge which are distributed on the two sides. The upper ends of the first hinge and the second hinge are hinged with the upper mounting shaft, and the lower ends are hinged with the lower mounting shaft; the two ends of the upper mounting shaft are connected with the fixing rods; two ends of the lower mounting shaft are connected with the connecting rods; two ends of the connecting rod are connected with lifting driving mechanisms. The cooling tower can eliminate the mist phenomenon generated when the cooling tower runs in a low-temperature environment, has a water-saving effect, and is relatively low in cost and good in mist dissipation effect.

The invention relates to a preparation method of a super hydrophilic transparent anti-fog coating. The preparation method comprises the following steps: forming prepolymer by reaction on hydroxyethyl acrylate and diisocyanate, carrying out hydrophilic modification by polysorbate, and carrying out UV radiation curing on the modified prepolymer so as to form super hydrophilic coating. The contact degree of the coating to water is 3 degrees, the hardness is 2H, the anti-fog performance is excellent, the light transmittance is 91% for meeting the anti-fog requirement of a transparent panel, certain waterproof performance is achieved and the combination property is excellent. The preparation process of the super hydrophilic transparent anti-fog coating is simple, and strong industrialization capability and application prospect are achieved.

A medical endoscopy with a clear field of vision, including polyethylene pyrirol and sodium chloride aqueous solution, which is 5‑50 nanometer, and its weight component content is 0.2‑1.2 %;The content of sodium chloride weight components is 0.1‑5.0 %.The preparation method is to dissolve the polyethylene pyrirol in a 40 -degree aqueous solution, and then add sodium chloride and stir for 30‑150 minutes before cooling to room temperature.Add ethanol and stir for 30‑150 minutes to clear the liquid.The clear liquid process prepared by the present invention is simple. It can be used to prevent fog on the surface of the lens and has a good clear effect.

The invention belongs to the technical field of cooling towers, and particularly relates to a multi-working-condition fog-dissipation water-saving noise-reduction cooling tower which comprises a tower body, an inner cavity of the tower body is divided into an upper cavity body and a lower cavity body, a partition plate is arranged in the upper cavity body of the tower body, and the partition plate divides the upper cavity body into a left cavity body and a right cavity body. The left chamber is sequentially provided with an air outlet, a fan, a fog dispersal module and a first spraying device from top to bottom, a first shutter is arranged on the side wall of the tower body opposite to the fog dispersal module, a second spraying device and a heat exchanger are sequentially arranged in the right chamber, and a third shutter is arranged on the side wall of the tower body opposite to the heat exchanger; under the condition that the volume of the tower body is not changed, the upper cavity of the cooling tower is divided into two chambers, flexible conversion between a closed tower and an open tower is achieved by opening or closing the shutters and the spraying device so as to adapt to different external environment conditions, the heat exchange efficiency of the cooling tower under different environment conditions is guaranteed, and the service life of the cooling tower is prolonged. The problem that an existing cooling tower heat exchange device is single in function is well solved.