131results about How to "Good permeability" patented technology

The present invention provides a composite porous membrane suited for a separator for a battery having excellent ion permeability, low pore blocking temperature, and high membrane breakage temperature by compositing resin porous membranes having different melting points (or softening points) without using a termocompression bonding method or a method of directly applying a solution to the substrate by using a composite porous membrane containing a porous membrane A of a resin having a melting point of 150° C. or less and a porous membrane B of a resin having a glass transition temperature of more than 150° C. integrated with the porous membrane A, wherein both a superficial side of the porous membrane B and an interfacial side with the porous membrane A of the porous membrane B have a three-dimensional network structure.

The invention discloses a method for preparing a compound polyvinylidene fluoride super-hydrophobic porous separating membrane. The method comprises the following steps: uniformly mixing polyvinylidene fluoride, a split-phase polymer, a pore diameter conditioning agent and a solvent, and defoaming the mixture to obtain a membrane preparing solution; then immersing a non-woven fabric into the membrane preparing solution to be dipcoated, then scraping the non-woven fabric with a cutter and immersing the scraped non-woven fabric into a coagulating bath to conduct solidification formation and cleaning, immersing a cleaned membrane into a hydrophobic modified emulsion with the mass percent of 1-5% to be dipcoated, taking the membrane out and removing excess emulsion adsorbed on the surface, and drying; conducting vacuum heat treatment on the obtained dried membrane. According to the method, blend polymer is dipcoated on the non-woven fabric through solution by a one-step phase inversion method to obtain the porous membrane, influence on the pore structure at the later stage process is less, and high porosity rate and good permeability of the membrane are ensured; the water-based emulsion and vacuum heat treatment are adopted, so that mass application of an organic solvent influencing environment and the human body is avoided; the non-woven fabric is adopted for compounding support, and the membrane is endowed with good strength and workability.

The invention discloses an inorganic modified polyurethane grouting material. The inorganic modified polyurethane grouting material comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 85-98 parts of sodium silicate solution, 0.5-3 parts of catalyst, 1-5 parts of chain extender and 0-8 parts of water; and the component B comprises the following components in parts by weight: 10-80 parts of modified polymeric MDI-PU2101, 10-75 parts of modified polymeric MDI-PU2102, 5-20 parts of viscosity reducing agent and 5-15 parts of plasticizer. A preparation method of the material disclosed by the invention is simple, and the material is injected into a coal-rock mass through a dual-liquid grouting pump and can achieve the function of reinforcing the coal-rock mass after fast curing; compared with the conventional polyurethane grouting material, the material has the advantages of lower highest reaction temperature, excellent flame resistance, lower cost, capability of keeping the mechanical properties at a higher level, capability of still keeping the higher strength in a water environment and the like; and the material does not contain toxic, volatile and corrosive substances and can meet underground safety and environmental protection requirements of the material.

The invention discloses a method for improving the oxidation resistance of a graphite electrode by obtaining a SiC/C gradient surface coating through chemical vapor deposition. The method comprises the following steps of: performing surface pretreatment on the graphite electrode; fixing the graphite electrode which is subjected to surface pretreatment on a support in a water-cooled reaction furnace of chemical vapor deposition equipment, and vacuumizing in the furnace; heating the graphite electrode in the reaction furnace, and aerating CH4 gas to form a layer of pyrolytic carbon on the surface of the graphite electrode; keeping the temperature of a cavity unchanged, aerating carrier gas H2 to pass through boiling SiCl4 liquid, and reacting SiCl4 gas carried by the carrier gas H2 and the CH4 gas on the surface of the graphite electrode and depositing; and after the deposition is finished, keeping the temperature of the cavity unchanged, maintaining H2 atmosphere, performing in-situ heat treatment on the graphite electrode in the furnace, and cooling the graphite electrode to room temperature in the furnace after the heat treatment is finished so as to obtain the graphite electrodewith a SiC/C gradient functional surface protective layer. The invention has the advantages that: the permeability is high, the coating can permeate into any fine pores on the surface of a matrix of the graphite electrode, and a good effect of resisting the oxidation of surface voids can be achieved.

The invention discloses an anti-mildew modified atmosphere packaging film, which is prepared from the following components in parts by weight: 100 parts of low density polyethylene resin, 10 to 30 parts of linear polyethylene resin, 10 to 25 parts of ethylene-vinyl acetate resin, 0.5 to 5 parts of antioxidant, 0.5 to 1 part of antistatic agent, 1 to 2 parts of lubricant, 1 to 3 parts of silane coupling agent, 0.5 to 1.5 parts of anti-fogging agent, 5 to 10 parts of calcium carbonate master batch and 0.5 to 2 parts of nano zinc oxide coating solution. The invention also discloses a preparation method for the packaging film. The packaging film prepared by the method has an anti-oxidation function, an anti-fog function, an antibacterial function, an anti-mildew function and a fruit and vegetable respiration adjustment function, the refreshing time of fruits and vegetables can be prolonged, and the quality of the fruits and the vegetables can be improved.

The invention discloses a sealing agent for a micro-arc oxidation film. Alcohols solvents and little additives are added to prepare water-soluble liquid on the basis of a silane coupling agent, and the sealing agent is used for generating a nanometer protective layer on the surface of the oxidation film, so that discharge micropores of the micro-arc oxidation film can be effectively sealed and good corrosion resistance is achieved; the sealed surface of the micro-arc oxidation film has a good hydrophobic effect, is anti-scrubbing and anti-pollution, is matte, transparent and traceless, and has no sensory difference in appearance compared with that before micropore sealing.

A RE oxide coated carbon nanotube used for preparing field emission device and nano-class photoelectric device features that the supercritical CO2 is used as poor solvent to separate polar RE nitrate from alcohol to uniformly be coated on the surface of carbon nanotube, and the RE nitrate is decomposed at proper temp to form a coated RE oxide layer on the surface of carbon nanotube.

The invention provides a material formulation of a chromatographic column with two separating modes including hydrophilic ion exchange and reversed phase ion exchange and a preparation method thereof. The material contains matrix monomers, ionic monomers, initiator and porgenic agent. According to the material formulation, the matrix monomers and the ionic monomers are polymerized in the presence of the porgenic agent and the initiator in a silanized capillary; after the reaction is finished, the chromatographic column is washed with methanol, and epoxy bonds on the surface of an immobile phase are immobilized by hydrolyzing with acid or base solution to obtain the hydrophilic ion exchange chromatographic column and the reversed phase ion exchange chromatographic column. Plug burning at two ends of the entire column is obviated during preparation and difficulty on filling the column is also avoided. The column has good permeability, simple preparation process and wide range of applicable separated objects, and can satisfy the requirement of high-efficiency and continuous separation of neutral, acidic and basic substances. Two different separation modes can be provided for the same chromatographic column by adjusting proportion of organic modifier in a mobile phase.

The invention provides an antibacterial health-care ultraviolet-proofing polypropylene fiber. The fiber is prepared by mixing the following components in percentage by weight: 1.5-10 percent of a green plum branch and leaf extract, 1-8 percent of a pomegranate bark extract, 60-85 percent of polypropylene slices and the balance of auxiliaries through fusing, granulating, re-fusing and spinning. Therefore, the bioactivators and nutrients existing in a compound mode of the green plum branch and leaf and pomegranate bark extract components are uniformly contained in the surface layer of and inside of the fiber, various textiles which are produced by the fiber and in contact with human skins are good in skin compatibility and strong in transdermal absorption capability, can be directly in contact with human skins, can play antibacterial and ultraviolet-proofing effects on a human body, can sustainably release the nutrients which can be absorbed by skin, realizes perfect combination of fiber and skin-caring and body-building, life cultivation and health care, and is advantageous to a human body to obtain more health benefits. Furthermore, waste resources can be recycled, so that huge social, ecological, environmental and economical benefits are implied in the fiber.

The invention relates to a design method for a T-shaped intersection of an arterial highway in a mountain area for traffic safety. Roadside protections are graded according to the collision energy of vehicles steering at the roadside of the intersection, and corresponding novel concrete guard bar structures are arranged; guard bars comprise herringbone collision posts and independent concrete short bases, the requirements of different protection levels of the roadside at the intersection are met by regulating the spaces, sizes and the depth embedded into a roadbed of the herringbone collision posts, and the purpose of protecting the vehicles steering at the intersection is achieved; the included angle between the herringbone collision posts and the edge line of a lane is 5-15 degrees, so that the protection area for steering vehicles is increased; PVC (poly vinyl chloride) pipes are sheathed on the outer layers of the collision posts, red-and-white retroreflection vertical face mark lines are arranged on both the collision posts and the concrete short bases, so that the visibility of the intersection is improved; 3-4 groups of vibration deceleration zones are arranged on the crossed road 3-6m away from the intersection; vibration side lines are additionally arranged at the roadside in the range of 30-50m in all the directions of the intersection. The design method is applicable to controlling the T-shaped intersection in the mountain area without signal control, and the primary road is a second-class highway or a first-class highway.

The invention discloses a transparent display, and relates to the technical field of electro-optic display. The transparent display comprises a TFT-LCD layer, a quantum conversion layer, a PDLC or PNLC layer, a light guide plate layer and a liquid crystal changing light layer which are arranged in sequence in a stacked mode, the TFT-LCD layer is a combined array substrate structure which contains a front polaroid and a rear polaroid; the quantum conversion layer is used for transforming an optical wavelength which is transmitted by light into light with another wavelength, which correspondingly illuminates an image under a TFT-LCD imaging pattern; the PDLC or PNLC layer is used for making penetrated light show a scattering state or a transparent state; the light guide plate layer is used for making LED strong light scatter and illuminate the image in the TFT-LCD layer; the liquid crystal changing light layer is of a layered shape structure which becomes mirror glass when electrified or becomes transparent glass when not electrified. Through the adoption of the transparent display, the contrast and the transmittance of the display are improved while the energy consumption is low and the service life is longer, compared with an ordinary scheme which relies on reflective light, the display effect is more excellent, the permeability is better, under the existing process technology, implementation is easier, and the cost is low.

The invention relates to an agricultural insecticide, in particular to spirotetramat dispersible oil suspension containing mineral oil, a preparation method of the suspension and an application of the suspension, and belongs to the field of chemical pesticide processing. The dispersible oil suspension comprises, in weight percentage, 5-50% of spirotetramat, 0.5-10% of thickening agents, 10-15% of emulsifying agents, 0.5-10% of dispersing agents, 5-50% of mineral oil and the balance dispersion media. The problem of difficulty in preparing the dispersible oil suspension by the spirotetramat is solved. Compared with common preparations such as wettable powder, water dispersible granules and water suspension, the spirotetramat dispersible oil suspension has the advantages of environmental protection, efficacy improvement, high crop safety, rain wash resistance and long lasting period and has excellent prevention and control effects on crop pests such as scale insects, aphids, wood louses and whiteflies.

A coating and developing treatment system for performing coating and developing treatment. A coating treatment unit is configured to form a resist film on a substrate. A developing treatment unit is configured to develop the substrate. A heating/cooling unit includes a heat plate configured to continuously heat and a cooling plate configured to continuously cool in one casing the substrate on which the resist film has been formed by the coating treatment unit. A gas nozzle is configured to supply a treatment gas to the resist film formed on the substrate to form a protective film on a surface of the resist film. The gas nozzle is disposed on a cooling plate side in the heating/cooling unit. The gas nozzle is configured to move to a position above the substrate on the cooling plate during cooling at the cooling plate, to supply the treatment gas.

The invention discloses a novel cleaning agent additive. The cleaning agent additive is a liquid gemini polyether cleaning agent additive, the main ingredient of the cleaning agent additive is gemini polyether, and the general structural formula of the gemini polyether is shown in the description, wherein a, b, c and d are integers from 0 to 8 respectively, e is an integer from 8 to 30, f is an integer from 8 to 20, g is an integer from 1 to 18, m, n and p are integers from 2 to 10 respectively, R is a higher fatty acid group or hydrogen, X is Cl or Br, Y is hydrogen or sodium or potassium, EO is ethylene oxide, and PO is propylene oxide. The invention further discloses a synthetic method of the novel cleaning agent additive.

The invention belongs to the technical field of cosmetics, and particularly relates to whitening, nourishing and moisturizing water and a preparation method thereof. The whitening, nourishing and moisturizing water comprises water, propylene glycol, polyglycerol-10, hydroxyethylurea, glycine betaine, Carbomer, triethanolamine, polysorbate-20, sodium polyacrylate, polyethylene glycol-90M, sodium hyaluronate, PEG-40 hydrogenated castor oil, soybean germ extract, pea peptide, argan oil, cucumber primary liquid, biological elastin, CI 42090, essence and the like. The whitening, nourishing and moisturizing water is added with a plurality of natural active ingredients and can supplement skin moisture and simultaneously lock the moisture, so that the skin is tender and smooth; meanwhile, the moisturizing water is high in permeability and can effectively permeate the bottom layer of the skin, completely nourish the skin, improve dark and fatigue skin colour, and make the skin white.

The present invention discloses a water suspended nano methyl-amino-Ivermectin capsule preparation prepared via emulsion polymerization process. It has capsule shell of styrene, isocyanate, acrylate and methacrylate copolymer, and core comprising biologically originated pesticide and animal remedy methyl-amino-Ivermectin as effective component; contains methyl-amino-Ivermectin 0.2-2 wt%, capsule shell 5-30 wt%, additive 10-35 wt% and water in proper proportion. The nano capsule is disersive spherical particle of size smaller than 100 nm. Compared with traditional pesticide preparation forms, the present invention has the features of water based solvent, nano level dispersive effective component, high stability, etc. and may be used in killing animalí»s parasite and various pests of fruit tree, vegetable, flower, cotton, tobacco, etc.

The invention provides a size for spinning warp sizing. The size contains nanometer sol and starch. The size has the advantages of little energy consumption and high spinning efficiency, and can greatly save cost and facilitate environmental protection.

A filtering aid for filtering an aluminate solution and a using method of the filtering aid relate to a method of using pulverized coal ash and pulverized coal ash residue to serve as the filtering aid. The filtering aid is characterized in that the filtering aid is pulverized coal ash and pulverized coal ash residue of thermal power plants. According to the method, the source of raw materials for the filtering aid is stable and reliable, the preparation method is simple, convenient and practical, and the used raw materials are industrial waste and are low in price and convenient to use. The pulverized coal ash and pulverized coal ash residue have adsorption and entrapment effects on solid impurities and particles suspended in liquid due to different particle sizes and porous characteristics, thereby the purpose of liquid and solid seperation is achieved. The pulverized coal ash and pulverized coal ash residue are used as the filtering aid so that the filtering aid does not cause the loss of an aluminum element in the leaf filtration process, also does not introduce other impurity elements to the leaf filtration process, can keep chemical compositions of an original solution in stability and constant to the maximum limit and is easy to popularize and apply in industry.

The invention discloses a curing agent for furan resin self-hardening sand for casting and a preparation method thereof, and aims to provide the curing agent for the furan resin self-hardening sand for casting, which can reduce the production cost, is environment-friendly, has good curing speed and good solid permeability, and is suitable for a low-temperature and high-humidity environment, and the preparation method thereof. The curing agent for the furan resin self-hardening sand for casting disclosed by the invention is formed by the following components in parts by weight: 200-300 parts of phenol, 250-940 parts of sulfuric acid, 150-200 parts of methanol, 25-50 parts of maleic anhydride and 300-500 parts of water. After the phenol and the sulfuric acid are subjected to a sulfonation reaction, the methanol and the sulfuric acid which is not reacted are subjected to an esterification reaction; and a product is prepared by adding less maleic anhydride and water to dilute. The curing agent for the furan resin self-hardening sand for casting and the preparation method thereof can be widely applied to the field of the curing agent for the furan resin self-hardening sand for casting.

The invention provides a heat transfer film and a preparation method thereof. The heat transfer film comprises a base layer, a protective layer, a detachment layer, a transfer layer and a glue layer which are sequentially connected; and an anti-adhesive layer is arranged at the back of the base layer, so that the permeability is good and the printing ink transfer is facilitated. At the same time,the heat transfer film is good in heat transfer effect, fully meets actual requirements of heat transfer printing; and after the transfer of the heat transfer film, a protective film formed on the surface of a product is resistant to alcohol, scratches and friction, high in hardness, and capable of protecting a pattern for a long time; and the heat transfer film is simple in preparation and low inproduction cost.

The invention discloses finishing liquor for silk towel cloth. The finishing liquor for silk towel cloth is prepared from the following components in parts by weight: 3.4 parts of coconut oil fatty acyl diethanol amine, 1.1 parts of ethyl formate, 2.3 parts of octadecyl trimethyl ammonium chloride, 1.8 parts of triethanolamine monooleate, 0.6 part of sodium polyacrylate and 1.7 parts of polyoxyethylene stearate. The finishing liquor for silk towel cloth disclosed by the invention is good in hydrophilicity and permeability and can be used for enhancing the bacterial resistance, the tensile resistance and the antifouling property of the towel cloth.

A composite biologic adhesive bandage is composed of pressure-sensitive adhesive hydroentangled cloth, hygroscopic pad, non-woven cloth, chitosan, I-type collagen and medicine preparation. Its advantages are high penetability, elasticity, flexibility, bioactivity and biodegradability, and low cost.

The invention provides a method for manufacturing a shape-controllable double-function hydrogel anode material for a hybrid biological power source. According to the method, the hydrogel anode material is prepared by chitosan, carbon nanotube and polypyrrole, the hydrogel anode material can be taken as an anode material for the hybrid biological power source, so not only can biological electrons be generated, but also the biological electrons can be further stored, the hybrid biological power source has double functions of a microbiological fuel cell and a biological capacitor, the hydrogel three-dimensional material has open transparent large-hole structure through which mass transfer and attachment of microbes in the holes are facilitated, electrode biological compatibility is substantially improved through the chitosan, biomembranes are easy to hang, microbe attachment amount is enhanced, conductivity and electron storage capability are improved through CNT and polypyrrole, anode biological electrocatalytic activity and electron storage can be improved, and cell instantaneous output power is improved. The method is advantaged in that the process is simple, self-supporting can berealized to form multiple shapes, and the method has wide application prospects in actual applications.

The invention provides vegetable wax paint. The vegetable wax paint is prepared from the following raw materials in parts by weight: 18 to 26 parts of linseed oil, 14 to 20 parts of tung oil, 4 to 8 parts of neutralizing agent, 3 to 5 parts of lactic acid, 5 to 7 parts of turpentine oil, 4 to 10 parts of ethanol, 16 to 20 parts of waterborne polyurethane resin, 6 to 10 parts of silicone oil, 10 to16 parts of tea seed oil, 6 to 12 parts of dispersant, 8 to 16 parts of titanium dioxide, 8 to 16 parts of epoxy resin, 7 to 13 parts of palm oil, 6 to 10 parts of paraffin wax, 8 to 12 parts of kaolin, 4 to 8 parts of methyl n-amyl ketone, 5 to 9 parts of curing agent, 10 to 20 parts of pigment and 3 to 5 parts of preservative. According to the vegetable wax paint provided by the invention, theviscosity and stability of the vegetable wax paint in a construction process can be controlled very well; the vegetable wax paint is environmentally friendly and does not cause injuries to environmentand human bodies; surface gloss of wooden products can be kept for a long period and the service life of the wooden products is prolonged; the vegetable wax paint is more uniformly coated on wooden ware and sufficiently penetrates into the wooden ware; the vegetable wax paint has good permeability and can permeate through wood; the vegetable wax paint is economical and practical, and is environmentally friendly and green.

The invention discloses a clamping-type laparoscope with a lens having a temperature-control antifogging function. The clamping-type laparoscope comprises an operation handle, an extension rod and the objective lens. A video output port is formed in one end of the operation handle, the extension rod is arranged at the other end of the operation handle, an anti-slipping sleeve is arranged on the external surface of the operation handle, an operation panel is arranged on one side of the operation handle, buttons are arranged on the operation panel, a microprocessor and a light source launching device are arranged inside the operation handle, and the objective lens is fixedly installed at the tail end of the extension rod. Perspective eyeglass is fixedly installed on the front side of the objective lens, a heating device is fixedly installed on the periphery of the perspective eyeglass, a miniature camera and a temperature sensor are arranged on the back face of the perspective eyeglass, and the temperature sensor is arranged on the back face of the perspective lens of the objective lens of the laparoscope to collect temperature of the perspective eyeglass, and collected data is transmitted to the microprocessor in real time.

A disclosed preparation method for a fabrics antibacterial finishing liquid comprises the following steps: 1) successively adding 1-2 parts by weight of glycerin monostearate, 1.4 parts by weight of sodium silicate, 0.8 part by weight of an acrylamide, 0.7 part by weight of potassium thiocyanate into 19 parts by mass ofdeionized water, and stirring uniformly; and 2) then simultaneously pouring 1.5 parts by weight of Ixeris denticulate extraction liquid, 2.3 parts by weight of sorbic acid, 1.1 parts by weight of dimetyl terephthalate, and 0.9 part by weight of boron phosphate, and continuing to stir until the mixture is uniformly mixed, so as to prepare the finishing liquid. The prepared finishing liquid is good in hydrophilicity and good in permeability, and fabrics finished by using the finishing liquid possesses excellent flame retardation performance, mildew resistance, moth prevention performance, bacteria resistance and static electricity resistance, and is strong in washing fastness and soft in handfeel.

The invention discloses an instantaneous wrinkle-removing eye pad. The instantaneous wrinkle-removing eye pad comprises an instantaneous wrinkle-removing eye pad stock solution and an eye pad cloth; and the instantaneous wrinkle-removing eye pad stock solution is prepared from the following components in parts by weight: 50-80 parts of water, 5-20 parts of a moisturizing agent, 0.1-2 parts of xanthan gum, 0.1-3 parts of ceramide, 0.01-1 part of dipeptide diaminobutyroyl benzylamide diacetate, 0.1-3 parts of conotoxin, and 0.1-4 parts of a paeonia suffruticosa root extract solution. According to the instantaneous wrinkle-removing eye pad, through compatibility of the components, the great synergistic effect is generated, the specific dipeptide diaminobutyroyl benzylamide diacetate and the conotoxin are closely combined, the efficient moisturizing agent and the paeonia suffruticosa root extract solution are matched, wherein paeonol in the paeonia suffruticosa root extract solution can inhibit generation of O2-free radicals in cells, the skin can be whitened, a deposited pigment in the skin is reduced and faded, and sediment elimination and chloasma dissolving are achieved; and the dipeptide diaminobutyroyl benzylamide diacetate and the conotoxin can well enable the eye contour to be free of wrinkles, black eyes are avoided, irritation is avoided, and the skin is further nourished.

The invention belongs to the technical field of thermal spraying corrosion prevention, and particularly relates to a high-temperature-resistant inorganic hole sealing agent for a thermal spraying coating and a preparation method of the high-temperature-resistant inorganic hole sealing agent. Aiming at the problems of insufficient hole sealing depth, no high-temperature resistance, easiness in embrittlement and the like of an existing hole sealing agent, the invention provides the high-temperature-resistant inorganic hole sealing agent for the thermal spraying coating. The high-temperature-resistant inorganic hole sealing agent comprises the following components in percentage by weight: 30-40 percent of inorganic film-forming agent, 40-60 percent of inorganic functional sol, 1-10 percent of rare earth sol and 1-10 percent of stabilizer. The invention further provides a preparation method and a use method of the hole sealing agent. The hole sealing agent has better permeability, the hole sealing effect can be achieved more quickly, and the hole sealing depth can be increased; and meanwhile, the adhesive force is better, the toughness of the coating is better, and brittle failure after hole sealing is avoided. The invention provides a hole sealing agent with more excellent performance for the industry, and the hole sealing agent has very good economic benefits.

The present invention relates to a kecuocryptone gel and its preparation process. Said kecuocryptone gel is composed of salvia miltiorrhiza powder, trimethoprim, vitamin A, vitamin E, propylene glycol, laurinol, ethyl P-hydroxyhenzoate, ethyl alcohol and carbomer gel. Its preparation process includes the following steps: dissolving disodium ededate salt by adding water, adding carbomer, stirring, standing still to obtain carbomer gel; mixing ethyl alcohol, propylene glycol and carbitol uniformly, adding trimethoprim, salvia miltiorrhiza, laurinol, ethyl p-hydroxybenzoate, vitamin A and vitamin E, stirring them and combining them with carbomer gel, using triethanolamine to regulate pH value to 5-7 and stirring them uniformly so as to obtain the invented product.

The invention discloses a cooling liquid for lens glass processing. The cooling liquid consists of the following components in percentage by weight: 5-15% of an antirust agent, 1-2% of a bactericide, 5-20% of a surfactant, 6-18% of a lubricant, 5-15% of an anti-scaling agent and the balance of pure water. The cooling liquid for lens glass processing disclosed by the invention is good in permeability, capable of preventing chip accumulation on the surface of a grinding wheel bar and constantly keeping the cutting capacity of the surface of the grinding wheel bar; the cooling liquid can improve the surface smoothness of a workpiece and reduce the occurrence of edge breakage and bad scratching; the PH value is around 7, and the cooling liquid is neutral and odorless, free from harm to human bodies and cannot cause skin allergy; after cutting, glass is easy to clean, and processing equipment is free from dirt accumulation as well, strong in anti-rust property and is not easy to become rusted; and the cooling liquid is strong in antibacterial capacity, stable in performance, free from environmental pollution and long in service life.