75results about How to "Strong surface tension" patented technology

An apparatus and method for displaying large format images, graphics, and videos. The apparatus comprise a layer of column oriented optical fibers, each fiber is illuminated at one end by at least one laser diode, and a second layer which sits in front of the first layer and is parallel to the first layer, whose projected area substantially overlap that of the first layer. The second layer comprises a plurality of optical fibers arranged in rows. In between the first and second layer sits a third layer of optical switching elements. Alternatively, the second layer can be a light diffusing layer. Laser lights emitted from the laser diodes travel in parallel along respective column fiber until they are redirected by optical switching elements which couple the laser lights within the column fibers to the row fibers or to the difflusing layer directly whereby they are scattered by the diffusing elements to reach the viewing audience. The small size of the fibers results in very small fill factor, allowing light absorbing matrix and backing layer to absorb ambient light effectively. The contrast ratio under ambient light condition is further enhanced by the use of multilayer dielectric optical filter to preferentially absorb ambient light.

The invention relates to a polysiloxane modified polyurethane-epoxy resin polymer material, a preparation method thereof and a use thereof. The preparation method comprises the following steps: 1, drying raw materials of a polyether, a bisphenol A type epoxy resin and a hydroxyl-terminated polysiloxane until water mass percentages of below 0.01%; 2, adding the polyester, the bisphenol A type epoxy resin and diisocyanate to a reaction vessel to generate a polyurethane-epoxy resin polymer system; 3, adding the hydroxyl-terminated polysiloxane to the polyurethane-epoxy resin polymer system, and reacting to generate a polysiloxane-polyurethane-epoxy resin prepolymer system; and 4, adding a curing agent and a catalyst before ending the reaction, uniformly stirring, dumping the obtained system to a die, and cure-molding. The polysiloxane modified polyurethane-epoxy resin polymer material has the advantage of the complementation of polyurethane-epoxy resin performances and also has the hydrophobic characteristic of the polysiloxane, so comprehensive properties of materials prepared from the polysiloxane modified polyurethane-epoxy resin polymer system are improved, thereby the polysiloxane modified polyurethane-epoxy resin polymer material is mainly applied to high damping materials, waterproof electronic packaging materials, medical materials, long-term storage materials and the like.

The invention relates to an anti-paste and anti-graffiti fluorocarbon coating which is prepared by mixing a component A and a component B in a proportion of OH / NCO=1:(1.0-1.1), wherein the component A comprises the following components in percentage by weight: 50-65 percent of FEVE fluororesin, 1-3 percent of modified polydimethylsiloxane resin containing hydroxide radicals, 8-15 percent of butyl acetate, 15-25 percent of propylene glycol methyl ether acetate, 0.2-0.4 percent of defoaming agent and 0.1-0.3 percent of flatting agent; and the component B is prepared by mixing 80 parts of IPDI isocyanate curing agent or GDI multifunctional isocyanate curing agent by weight and 20 parts of anhydrous butyl acetate by weight. The coating has high film crosslinking density and hardness, low surface tension, extremely strong permeability resistance and excellent anti-paste and anti-graffiti performance, and intractable oil pen graffiti can also be easily and completely wiped out. The coating also has excellent wear-resistant, scouring resistant and weather resistant properties and is suitable for long-term outdoor use. The coating can be painted and can also be sprayed after being diluted by adding 10-20 percent of PMA or polyurethane coating diluent.

The invention provides a chrome-free insulating coating composition and a preparation method and an oriented silicon steel plate. The coating composition comprises the following components of, by weight, 100 parts of phosphate solutions, 1-5 parts of molybdate, 50-150 parts of silica sols, 3-13 parts of selenium dioxide, 1-10 parts of metallic oxide and / or metal hydroxide, 5-15 parts of organic acid, 1-6 parts of boric acid and 100-300 parts of water. The preparation method of the composition comprises the steps that the phosphate solutions, the boric acid and the water are added; the selenium dioxide and the organic acid are sequentially added; and the metallic oxide and / or metal hydroxide and the molybdate are added, then the silica sols are added, and the composition is obtained. The oriented silicon steel plate comprises a pedestal and a chrome-free insulating coating formed on the surface of the pedestal, and the chrome-free insulating coating is obtained by coating the chrome-free insulating coating composition on the surface of the pedestal. The chrome-free insulating coating has extremely high interlayer resistance, surface hardness and surface tension and shows the excellent magnetic property improved effect.

There is provided an emulsion composition for therapeutic administration comprising: (a) at least one mono-(electron transfer agent) phosphate derivative; (b) at least one di-electron transfer agent phosphate derivative; wherein the amount of transfer agent phosphate derivatives is no less than equimolar to the amount of di-electron transfer agent phosphate; and (c) a suitable carrier.

There is provided an emulsion composition for therapeutic administration comprising: (a) at least one mono-electron transfer agent phosphate derivative; (b) at leas tone di-electron transfer agent phosphate derivative; wherein the amount of mono-electron transfer agent phosphate derivatives is no less than equimolar to the amount of di-electron transfer agent phosphate; and (c) a suitable carrier.

The invention relates to a chlorine dioxide slow-release device and its replenishment liquid, in particular to a chlorine dioxide slow-release device and its replenishment liquid for epidemic prevention and disinfection, food antisepsis and air purification. The device includes three parts: a container, a container cover, and a strip-shaped volatile matter. The supplement liquid includes the following parts by weight: 1-15 parts of sodium chlorite, 1-15 parts of activator, 1-10 parts of thickener, 1-5 parts of stabilizer, 0.5-2 parts of air barrier agent, 53-5 parts of purified water 95.5 servings. The beneficial effect of the device is to stably preserve the activated chlorine dioxide liquid, and to control the amount of moisture and air in contact with the strip-shaped volatiles by increasing and / or reducing the total area exposed to the strip-shaped volatiles in the air. Control the amount of chlorine dioxide released. According to the scale prompt on the container, when the chlorine dioxide liquid drops to a certain level, open the container cover, add replenishing liquid, and it can be recycled. It has the advantages of simple preparation process, low cost, convenient use and environmental protection.

The invention belongs to the biochemical analysis field and relates to a method which makes use of the block polymer coating with a micro-phase separation structure to carry out on-target elution-free in-situ desalting and synchronous enrichment on the peptide and protein samples to avoid samples loss and can directly carry out matrix-assisted laser analysis ionization mass spectrometry analysis and identification on the enriched samples. The invention can realize desalting dispensing with extra eluted desalting step and excessive matrix solution and can directly make MALDI MS analysis; the invention successfully achieves the characteristics of sample on-target in-situ elution-free desalting and enrichment at the first time and has the advantages of high sensitivity, high reproducibility, high flux and strong salt-tolerant ability, which is economical and time-saving; the invention can be widely used in the field of proteomics and also greatly expands the application scope of the polymer coating technology.

The invention discloses a waterborne UV (ultraviolet) antifouling self-cleaning coating which comprises the following components in parts by weight: 100 parts of coating components and 3-10 parts of aid components, wherein the coating components comprise the following components in parts by weight: 40-60 parts of a waterborne polyurethane acrylate emulsion, 5-10 parts of a waterborne UV monomer, 5-10 parts of wax powder, 2-5 parts of a light initiator, 0.05-0.2 part of a pH regulator, 0.5-2 parts of a wetting agent, 0.1-0.5 part of a defoaming agent, 0.1-0.4 part of a dispersant, 0.5-2 parts of a rheological agent and 3-6 parts of matting powder and 20-30 parts of deionized water; the aid component comprises the following components in parts by weight: 70-90% of trifluorooctyl triethoxysilane and 10-30% of a diluent. The coating is good in base material wettability, good in leveling performance, low in surface tension, smooth in paint film, delicate and smooth in hand feeling, good inadhesion, good in water boiling resistance, good in weather resistance and good in wear resistance.

The multicomponent fire-extinguishing water mist additive consists of fluoric surfactant 3-5 wt%, octyl phenol polyoxyethylene ether 2-20 wt%, alcohols 10-60 wt%, N, N-dimethyl formamide 0.5- 0.8 wt%, anhydrous sodium carbonate 1-10, sodium lactate 0.5-0.8 wt% and water 32-35 wt%. It is prepared through mixing the components and filtering.

The invention discloses a preparation method of a sulfonate type gemini surfactant. According to the method, alkylphenol, sodium hydroxide and dibromoalkane generate a bisether intermediate under the action of a phase transfer catalyst tetrabutylammonium bromide in a nucleophilic substitution reaction under an ultrasonic condition; the bisether intermediate and chlorosulfonic acid are subjected to a sulfonation reaction with dichloromethane being a solvent under an ice-water bath condition, and then an alkaline solution is added to generate the sulfonate type gemini surfactant. According to the method, the reaction process is accelerated by the cavatition of ultrasonic waves, selectivity of a target product is improved, and therefore the yield of the intermediate is increased to 94.5% at present from 87% achieved through a common method.

The invention relates to a high-strength corrugated board box suitable for transportation. The high-strength corrugated board box comprises outer bottom covers, inner bottom covers, side boards, transverse pressing marks, inner rocking covers, opening grooves, vertical pressing marks, outer rocking covers, end boards, a connector paper board, U-shaped nails, double-layer corrugated boards, transparent flame retardant PC thin films, inner-layer paper boards, middle-layer paper boards, outer-layer paper boards, pearl wool, a mouldproof layer, a waterproof layer, inner-layer corrugated core paper, outer-layer corrugated core paper, first outer-layer corrugated core paper body, second outer-layer corrugated core paper body, an elastic material, lining paper boards, butterfly paper pads, limiting paper boards, clamping grooves, an anti-abrasion coating thin film layer, a coating inner paper mixing layer and an inner paper layer. The high-strength corrugated board box suitable for transportation has the advantages that an outer protection box body adopts the double-layer corrugated boards, and the protection strength is high; a box body size adjusting mechanism is internally arranged, so that the suitability is high, and product transporting is facilitated; and the anti-abrasion coating thin film layer is arranged on the lining paper boards, and thus friction and abrasion can be effectively reduced.

The invention discloses an oil reservoir protection accelerator and a preparation method of the oil reservoir protection accelerator. The oil reservoir protection accelerator comprises the following components in percentage by weight: 0.1-1.0 percent of polyepichlorohydrin-dimethylamine, 0.5-2.0 percent of ammonium chloride, 0.1-0.5 percent of a surfactant, 5-15 percent of ethanol, and the balance of water. The oil reservoir protection accelerator is relatively-high in anti-swelling rate and anti-scouring degree, and can reduce the surface tension of working solutions and increase the filtration capacity of the working solutions; the water sensitivity and water blocking damages of a reservoir are greatly reduced, the aim that the protective reservoir is prevented from being damaged due to invasion of the working solutions is fulfilled, and the requirement of oil reservoir protection in a construction operation process of low-porosity and low-permeability reservoirs is met. The oil reservoir protection accelerator can be used in various measure working solutions in an oil field production process, can also be used as an addictive of the measure working solutions such as acidification, crushing, water plugging and profile control, and has functions of protecting stratum and preventing the stratum from being damaged in an operation process.

The invention discloses a furniture water paint with a refreshing effect. The furniture water paint is prepared from the following ingredients: a waterborne polyurethane dispersion, an acrylate emulsion, pure water, a dispersing agent, a defoamer, water-borne alkyd resin, Arabic gum, hydroxypropyl starch, sodium silicate, modified nanometer aluminium oxide, lauryl mercaptan, xylitol and an assistant. Compared with an existing water paint, the furniture water paint has the advantages that the water paint forms a tough paint layer after coating, the radiance is high, the adhesive force is strong, the printability is very good, the follow-up printing processing is carried out quite excellently, the surface tension of the paint is higher than that of a common water paint, the paint can be used on furniture much longer and more stably, and the service life is prolonged by 50% compared with the common water paint. The water paint is good in abrasive resistance and high in adhesive force, the film forming property and the glossiness are both quite excellent, in addition, after the water paint coats the furniture, a person in a room feels refreshing, the mind is calmed, the mentality is promoted, the nerve is regulated, and the mental anxiety is eased.

The invention relates to the field of water treatment equipment, and discloses a gradient alternating water activator. The gradient alternating water activator comprises a shell, a water pipe and a plurality of single-pole magnetic focusing devices, wherein a water inlet and a water outlet are formed in the shell; the water pipe is 8-shaped; the single-pole magnetic focusing devices are arranged on the surface of the water pipe in a sleeving manner to form a gradient alternating magnetic field completely covering the water pipe; the intensity of the magnetic field of a first S-shaped section of the 8-shaped water pipe is gradually increased, and the intensity of the magnetic field at the start point of a second S-shaped section is suddenly changed, but the intensity of the magnetic field along the second S-shaped section is gradually increased; the single-pole magnetic focusing devices comprise magnetic shielding sleeves and permanent magnet blocks; partitions are arranged on the inner circumferential surfaces of the magnetic shielding sleeves; the inner walls of the magnetic shielding sleeves, the partitions and the outer wall of the water pipe form permanent magnet grooves; and the permanent magnet blocks are arranged in the permanent magnet grooves. The gradient alternating water activator disclosed by the invention carries out magnetization treatment on water by using a gradient alternating magnetic field, and the treated water is higher in activity, dissolving property, penetration property and surface tension; and furthermore, the gradient alternating water activator is smaller in size and low in cost.

An apparatus and method for displaying large format images, graphics, and videos. The apparatus comprise a layer of column oriented optical fibers, each fiber is illuminated at one end by at least one laser diode, and a second layer which sits in front of the first layer and is parallel to the first layer, whose projected area substantially overlap that of the first layer. The second layer comprises a plurality of optical fibers arranged in rows. In between the first and second layer sits a third layer of optical switching elements. Alternatively, the second layer can be a light diffusing layer. Laser lights emitted from the laser diodes travel in parallel along respective column fiber until they are redirected by optical switching elements which couple the laser lights within the column fibers to the row fibers or to the difflusing layer directly whereby they are scattered by the diffusing elements to reach the viewing audience. The small size of the fibers results in very small fill factor, allowing light absorbing matrix and backing layer to absorb ambient light effectively. The contrast ratio under ambient light condition is further enhanced by the use of multilayer dielectric optical filter to preferentially absorb ambient light.

The invention provides an MALDI steel target for conducting single-step enrichment and desalination on a biological sample. A hydrophobic adsorption material round layer is arranged in the center of a target spot of the steel target, annular uncoated steel surrounds the hydrophobic adsorption material round layer, and an annular paraffin layer surrounds the uncoated steel. The preparation method comprises the following steps: 1, taking 0.2-3.0 microlitre of glycerin, and putting the glycerin in the center of the target spot of the MALDI steel target in a dripping mode, wherein the diameter of a glycerin point is 0.6-2.8 mm; 2, covering the glycerin point with a paraffin solution, so that a thin and uniform annular paraffin layer is formed quickly, and flushing away the glycerin, so that uncoated steel is obtained at the original glycerin point position; 3, covering the central area of the uncoated steel in the annular paraffin layer with a hydrophobic adsorption material solution in a dripping mode, and reserving an annular gap between the central area and an inner ring of the paraffin layer. The MALDI steel target and the preparation method thereof have the advantages of being easy and quick to operate, low in cost, high in sensitivity and applicable to high-flux sample analysis.

The invention provides a preparation method of metalized package electronic ceramic printing slurry .The preparation method includes the following steps that raw materials are weighed according to weight part percentages, and the raw materials are mixed to be uniform; the raw materials which are mixed to be uniform are added to a centrifugal ball mill, wherein the ball milling time is controlled to be 48 hours or above; the ball-milled raw materials pass through a 300-mesh screen, and screened-out materials are taken; the screened-out materials are heated to 27 DEG C to 29 DEG C, and then a solvent accounting for 6% of the weight of the materials is added, wherein the solvent is a mixture of terpilenol and cellulose; the materials to which the solvent is added are placed in a stirring ball mill to be stirred and ball-milled for 48 hours at constant temperature, and then the metalized package electronic ceramic printing slurry is obtained .Solderability is high, joint ceramic surface force is high, and surface tension is high .

The invention relates to the technical field of plastic particle processing, in particular to a processing device for raw materials of plastic particles. The processing device comprises a machine frame slidably connected with a slide rail; the slide rail is slidably connected with a sponge; a rinse tank and a drying bin are arranged below the slide rail; a rotary motor is further arranged above the drying bin; a cam is fixedly connected to the rotary motor; a transport pipe is connected to the lower end of the drying bin; one end of the transport pipe is connected with the drying bin, and the other end of the transport pipe is connected with a material mixing chamber of which the lower end is provided with a gas ejector pipe; a pressing plate for separating the material mixing chamber is horizontally arranged in the material mixing chamber and is slidably connected with the material mixing chamber; the lower end of the transport pipe is located in the position, below the pressing plate, of the side wall of the material mixing chamber; an operation rod is further fixedly connected to the upper end of the pressing plate; and the lower end of the operation rod is connected with a pressing rod, and the upper end of the operation rod penetrates through the upper end of the material mixing chamber and is connected with a hydraulic machine. According to the processing device for the raw materials of the plastic particles, a large amount of dust adsorbed by plastic powder can be cleaned up, the purity degree of finished plastic particles can be increased, and the raw materials can be mixed more uniformly.

The invention discloses an anacardol surfactant containing trisiloxane and amidogen and a preparation method thereof. The anacardol surfactant containing trisiloxane and amidogen is prepared according to the following method: 1) reacting chloropropyl trisiloxane and diamine to obtain an intermediate I; 2) adding anacardol into a reactor, adding a sulfonating agent, and sulfonating to obtain anacardol sulfoacid; 3) reacting anacardol sulfoacid with epichlorohydrin under an alkaline condition to obtain an intermediate II; and 4) mixing and heating the intermediate I and the intermediate II, performing separation purification on obtained products to obtain the anacardol surfactant containing trisiloxane and amidogen. The anacardol surfactant containing trisiloxane and amidogen provided by the invention has the common performances and characteristics of a silicone type surfactant and an amidogen surfactant, is high in solution surface tension reduction capability, good in emulsifying property, less in irritation to a human body and good in biodegradability, and can be better matched with other types of surfactants so as to be prepared into an emulsifying agent, a wetting agent, a solubilizer and a detergent to be widely used in the industrial field.

The invention discloses a high-antibacterial-property down quilt core and a preparation method thereof. The preparation method comprises the following steps: firstly, preliminarily crushing down feather fibers to obtain superfine down feather powder, mixing the superfine down feather powder with cinnamyl aldehyde, then adding quaternary phosphonium salt for modification to prepare modified superfine down feather powder, chelating the modified superfine down feather powder with polylactic acid nanofibers through electrostatic spinning to prepare composite fibers, then performing graft modification on the composite fibers by using melamine and phosphoric acid to prepare the high-antibacterial-property down feather fibers, drawing and shaping the down feather fibers with high antibacterial property, and stacking and laying the down feather fibers layer by layer by using a silk activating treatment technology to obtain the down feather quilt core with high antibacterial property. The prepared high-antibacterial-property down quilt core has the antibacterial, flame-retardant, hydrophobic and moisture-permeable effects.

A method for repairing a scratch in the clear top coat overlying a pigmented base coat on a metallic substrate, without damaging the pigmented base coat, involves the steps of applying an amount of a repair composition to the scratch at least sufficient to fill the scratch, spreading the composition into and over the scratch until the composition at least fills the scratch, removing excess composition, allowing the composition to air dry, sanding the dried composition to create a smooth, continuous surface at the site of the scratch and buffing the sanded surface with a fine polishing compound to establish a high gloss, clear coat surface at the site of the scratch. A desirable resin composition consists essentially of, in percent by weight of the composition, toluene 10-18%, n-butyl acetate 10-15%, ethyl acetate 0-5%, acetone 20-25%, acrylic resins 30-50%, surface tension reducer 0-0.5% and plasticizer / coalescent 0-3%.

Circuit elements, such as aluminum interconnects, and a protective film for protecting these circuit elements are formed on a surface of a semiconductor substrate. Resist is formed covering the protective film. The semiconductor substrate on which the resist covering the protective film is formed is dipped into pure water so as to allow the water to filter into a gap between the resist and semiconductor substrate. Then the semiconductor substrate having the resist thereon is dried in high temperature air, and the resist is adhered to the semiconductor substrate by a sticking function due to the surface tension generated when the water is decreasing. The semiconductor substrate to which the resist is adhered is cleaned by a hydrogen fluoride aqueous solution.

The invention provides a laser welding method which comprises the steps that to-be-welded first metal and to-be-welded second metal are arranged, so that the to-be-welded surface of the first metal and the to-be-welded surface of the second metal are oppositely arranged; the first metal and the second metal are irradiated with blue laser to enable the first metal and the second metal to form a liquid molten pool; two beams of infrared laser act on the liquid molten pool on the first metal and the liquid molten pool on the second metal correspondingly, so that a first welding keyhole is formed in the first metal, and a second welding keyhole is formed in the second metal; and the first welding key hole and the second welding key hole are expanded and fused. According to the laser welding method, the blue laser and two red laser beams are adopted for welding, so that the overall laser utilization rate is high, laser welding can be completed with low total power, the cold joint problem is not likely to occur, no splashing is generated in welding, the overcurrent capacity of a weld joint is guaranteed, and efficient and splashing-free welding of the first metal and the second metal is completed.

The invention relates to the field of optical adhesive, and particularly discloses self-exhausting OCA optical adhesive and a preparation method and application thereof. The self-exhausting OCA optical adhesive comprises a fluorine-containing acrylate oligomer, a photo-initiator, a cross-linking agent, nano PMMA microspheres, a hydroxyethyl acrylate monomer and polyurethane acrylate. The preparation method comprises the following steps: proportionally adding the optical adhesive raw materials into kneading equipment, and filtering out insoluble substances by a reaction filter screen at high temperature, thereby obtaining the self-exhausting OCA optical adhesive. The application of the self-exhausting OCA optical adhesive comprises the following steps: coating a heavy release film with a self-exhausting OCA optical adhesive, and attaching a light release film after UV curing to obtain the self-exhausting OCA optical adhesive film. According to the self-exhausting OCA optical adhesive disclosed by the invention, the surface tension of an optical adhesive film is reduced by utilizing the fluorine-containing acrylate oligomer, so that the self-exhausting performance of the optical adhesive film is improved, and the laminating yield of a touch display screen module is improved.

The invention provides a powder coating leveling agent and a preparation method thereof. The powder coating leveling agent is made by copolymerizing 5-40% by weight of a vegetable oil, 40-95% by weight of alkyl acrylate monomer, 0-20% by weight of alkyl methacrylate monomer by conventional dropwise polymerization; this vegetable oil is one of or a mixture of more than one of soybean oil, palm oil, rapeseed oil and castor oil, the alkyl acrylate monomer includes linear, branched or cyclic aliphatic monohydric alcohol ester with 2-22 carbon atoms, the alkyl methacrylate monomer includes linear, branched or cyclic aliphatic monohydric alcohol ester with 1-12 carbon atoms. The powder coating leveling agent of the invention has the advantages of greenness, low cost, high hydrophobicity, good leveling performance, heat resistance, acid and alkali resistance, good waterproof performance and the like, the preparation method is simple, and the powder coating leveling agent is applicable to powder coatings or solvent coatings.

The invention discloses a water-based pigment self-dispersing system and a preparation method thereof. The preparation method comprises the following steps that A, aromatic amine reacts with cyanuricchloride so as to prepare a surface modifier; B, the surface modifier and pigment are uniformly mixed, in addition, an oxidant is added, the pH value of a reaction solution is controlled to be 8-9, and the reaction temperature is 60-70 DEG C until the reaction is ended so as to obtain modified crude water-based pigment; and C, the crude water-based pigment is centrifuged so as to remove large particles, and desalting and concentrating are carried out so as to obtain water-based pigment of the self-dispersing system. According to the water-based pigment self-dispersing system and the preparation method thereof, surface modification is carried out on pigment particles by using a condensation compound of the aromatic amine and the cyanuric chloride so as to prepared the self-dispersing water-based pigment system, and the water-based pigment particles of the system is small, uniform and stable in particle size.

The invention discloses a foam scrubber, which comprises a scrubbing tower, a scrubbing pipe communicating with the scrubbing tower, a circulating water channel communicated with the bottom of the scrubbing tower, a first spray device, a second spray device and a first conical coil, wherein the first spray device and the second spray device are connected with the circulating water channel; the first spray device is used for spraying a flue gas in the scrubbing pipe; the second spray device is used for spraying the flue gas in the scrubbing tower; the first spray device comprises a first spray head arranged in the scrubbing pipe; the first conical coil is arranged in the scrubbing pipe and filed with a heat exchange medium; and the first conical coil and the first spray head are oppositely arranged along the airflow flowing direction at an interval. The foam scrubber is capable of effectively improving the removal efficiency on substances such as SO2 in an exhaust gas, and is good in dust collection and exhaust gas purification effects.

The invention discloses a nonionic biomass-based surfactant and a preparation method thereof. The nonionic biomass-based surfactant can be a compound shown in Formula I-Formula III, wherein in the Formula I-Formula III, R1, R2, R3 and R4 are independently selected from H or C1-22 branch-chain or straight-chain alkyl respectively, but R1 and R2 can not be H simultaneously and R3 and R4 can not be H simultaneously. The nonionic biomass-based surfactant can also be a compound shown in Formula VII, wherein in the Formula VII, R1 and R2 are independently selected from H or C1-22 branch-chain or straight-chain alkyl respectively, but R1 and R2 can not be H simultaneously. The nonionic biomass-based surfactant can also be a compound shown in Formula IX-Formula XI, wherein in the Formula IX-Formula XI, R1, R2, R3 and R4 are the same as those in the Formula I-Formula III. According to the invention, the nonionic biomass-based surfactant uses low-price environment-friendly biomass as a raw material and a saccharide polar group as a head group, thereby realizing simple synthesis and conforming to the development direction of greenness and environment friendliness; and the nonionic biomass-based surfactant has the characteristics of favorable solubility, high surface tension reducing capability, favorable emulsifying property, low consumption, favorable biodegradability and the like.

The invention discloses a non-Newtonian fluid state Na- K alloy electrode, and a preparation method and an application as an anode material of an alkali metal secondary battery thereof. That method comprise the steps of physically stacking K metal and Na metal under the protection of an inert gas, alloying the K metal and Na metal, and obtaining Na-K liquid alloy; Under the protection of inert gas, the liquid Na-K alloy and powder particles were mixed and stirred to form non-Newtonian fluid Na-K alloy composite material which is coated on the carrier to obtain non-Newtonian fluid Na-K alloy electrode. The electrode comprises a carrier coated with a non-Newtonian fluid Na-K alloy composite. that electrode of the invention has the characteristic of high coulombic efficiency, no dendrite growth, stable structure and the like, the electrode can be used as a potassium metal negative electrode and a sodium metal negative electrode at the same time, and the energy density and cycle stabilityof the whole battery are remarkably improve when the electrode is matched with positive electrode materials such as sulfur, Prussian blue and the like.