41results about How to "Hydrophilic and lipophilic" patented technology

The invention provides an aqueous self-emulsifying epoxide resin latex emulsion and a preparation method thereof. The invention adopts a one-step method to prepare the aqueous self-emulsifying epoxide resin latex emulsion. While the performance of the latex emulsion is maintained to be good, the preparation method has the advantages of simple operation and energy conservation, and can be widely applied to environment-friendly paint, cementing compound, etc.

The invention discloses sweets rich in dietary fibers and a preparation method of the sweets. The sweets rich in dietary fibers disclosed by the invention are made from the following substances in parts by weight: 40-70 parts of water soluble dietary fibers, 5-15 parts of resistant starch, 5-10 parts of sugar alcohol, 10-20 parts of white granulated sugar and 0.5-2 parts of soybean lecithin. The sweets rich in dietary fibers, disclosed by the invention, contain many dietary fibers and little sugar and little fat, are good in mouth feel, are convenient to eat, and can improve the function of intestinal tracts and reduce adverse impact caused by high sugar and high fat in the sweets. The preparation method of the sweets rich in dietary fibers disclosed by the invention is simple, and the prepared sweets have the effects of loosening the bowel to relieve constipation, regulating blood sugar and blood fat, reducing cholesterol, improving the function of the intestinal tracts and controlling weight, are beneficial to the physical health of people, and are extremely suitable for crowds suffering from high blood pressure, high blood fat, high cholesterol, diabetes, obesity, constipation, intestinal tract diseases and the like to eat.

The invention relates to an ultra-low calorie health-care type soluble drink mate and a preparation method thereof. The drink mate comprises the following food raw materials and food additives in percentage by weight: soyabean lecithin, sodium casseinate, grape seed extract (containing more than or equal to 30 percent of grape polyphenol and more than or equal to 60 percent of oligomeric proanthocyanidins in percentage by mass), stevioside containing more than or equal to 80 percent of RA, sodium stearoyl lactylate, molecular distilled monoglyceride, sodium citrate, disodium hydrogen phosphate, sodium alginate, carrageenan, edible essence, silicon dioxide, and the like. The preparation method comprises the following steps: blending the materials, dissolving, emulsifying, homogenizing, spray drying, cooling regularly, sieving, metering and packaging. The invention has simple process, stable product quality and high nutritional value. The ultra-low calorie health-care type soluble drinkmate integrates the nutritional values of the soyabean lecithin, the stevioside containing more than or equal to 80 percent of RA, the sodium casseinate and the grape seed extract, has unique taste, smooth and fine mouthfeel and thick fragrance, does not contain trans fatty acid and is a novel ultra-low calorie health-care type soluble drink mate.

The invention relates to a rare-earth-based flexible nuclear radiation protection material, and a preparation method and application thereof. The nuclear radiation protection material is a medium-heavy rare earth powder coated with a coupling agent and a defoamer, and the medium-heavy rare earth powder has a particle size less than 10 microns, the coupling agent is 0.5-2.0% the mass of the total medium-heavy rare earth powder, and the defoamer is 0.2-1.0% the weight of the total heavy rare earth powder. During the preparation, a medium-heavy rare earth powder is dried, and the dried medium-heavy rare-earth powder is coated with the coupling agent and the defoamer. According to the present invention, the rare earth composite material with good neutron absorption performance, no secondary radiation pollution, light weight and cheap price is selected for replacing an existing heavy metal composite material, and medium-heavy rare earth is used as a neutron absorption body for preparing theradiation protection product. The neutron shielding performance is higher than the shielding performance of traditional lead, boron carbide and other heavy elements; the protection effect on gamma ray is superior to those of lead, boron carbide and other heavy elements, and the protection material disclosed by the invention has good nuclear radiation shielding performance, mechanical properties and construction performance, and has advantages of crack resistance, corrosion resistance and heat resistance.

The invention discloses a preparation method of a polymethyl methacrylate macroporous microsphere adsorbent. The preparation method comprises the following steps: firstly, adding a styrene monomer which is dissolved with azodiisobutyronitrile into an alcohol-aqueous solution of polyvinylpyrrolidone to synthesize hydrophobic polystyrene microspheres; then, adding the hydrophobic polystyrene microspheres into concentrated sulfuric acid for cleaning after sulfonating in an oil bath, and drying to obtain sulfonated polystyrene microspheres which are amphipathic substances with hydrophilcity and lipophilicity; and finally, dispersing the sulfonated polystyrene microspheres into an aqueous phase as a stabilizer, adding single monomer methyl methacrylate into the aqueous phase as an oil phase for mixing, and magnetically stirring to prepare stable oil-in-water Pickering emulsion, and preparing a macroporous polymer with a great specific surface area by utilizing thermal-initiation polymerization.

The invention discloses a machine-made sand regulator for concrete. The machine-made sand regulator comprises the following raw materials in parts by weight: 2-5 parts of a water reducing agent, 1-3 parts of a dispersing agent, 2-5 parts of glycerol, 0.01-0.5 part of a defoaming agent, 0.01-0.05 part of an air entraining agent, 0.1-0.3 part of a retarder and 80-95 parts of deionized water. Synthetic hyperbranched ether reacts with isopentenol polyoxyethylene ether, acrylic acid and unsaturated phosphoric acid monoester monomer to form a hyperbranched carboxylic acid water reducer, and the unsaturated phosphoric acid monoester monomer is used for further modifying the carboxylic acid water reducer in the process. The water reducing agent obtained in the invention not only has the characteristics of a carboxylic acid water reducing agent, but also has the characteristics of a phosphate water reducing agent, and due to the hyperbranched structure of the molecular structure, cement particles can enter the space of the hyperbranched structure, so that the distribution of the cement particles is more stable, and the slump retentivity of concrete is improved.

The invention provides a multicomponent copolymer containing long chain side groups and preparation and application of the multicomponent copolymer. The copolymer consists of a polyether active macromonomer CH2=C(R4)-O-(CH2) x-O-(CH2-CH2-O) y-H, an oleophylic monomer CH2=C(R2)-C(O)-N(R3)-(CH2) m-C6H5 and the like with an acrylamide or acrylate monomer through copolymerization under a low temperature composite initialization condition. The copolymer contains active groups such as long chain polyether side groups, oleophylic side groups and anion side groups in the structure and has excellent emulsification and dispersing properties. The molecular weight of the copolymer is 2-21 million, and the copolymer has a certain thickening capability. The copolymer can be used in production processessuch as emulsification and viscosity reduction, oil displacement and gathering and transportation of common crude oil or heavy oil, and can also be used in related oilfield chemical fields such as preparation of drilling fluids, profile control and water plugging and sewage and sludge treatment. The copolymer is simple in synthesis process and small in environmental pollution and has broad industrial application prospects.

The invention discloses a PTFE (Polytetrafluoroethylene) material for a glass fiber coating and bundling device. The PTFE material is prepared from the following components in parts by mass: 70 to 100parts of polytetrafluoroethylene (PTFE), 0 to 30 parts of modified polytetrafluoroethylene, 1 to 60 parts of wear-resisting filler and 1 to 60 parts of high-temperature-resisting resin. The PTFE material disclosed by the invention has the advantages of abrasion resistance, high temperature resistance, low friction coefficient, hydrophilic and lipophilic performance, corrosion resistance and the like. Compared with original graphitic oil coating roller and bundling wheel, the abrasion of a product can be reduced, the service life of the product is prolonged and the pollution, caused by the product, to glass fibers is reduced; and the hairiness generated in a glass fiber production process is reduced and the quality of the glass fibers is improved. Being different from other PTFE surface hydrophilic modification methods, an inner material of an oil coating roller product prepared from the PTFE material still has very good hydrophilic performance under the condition that a surface material is abraded, and the coating uniformity of an impregnating agent in a working process is ensured.

The invention discloses a BB cream and a preparation method thereof, relating to the technical field of cosmetics. The BB cream contains the following components in percentage by weight: 5%-15% of cyclopentasiloxane, 0-5% of a sun-screening agent, 1%-1.5% of PEG-10 polydimethylsiloxane, 0.2%-0.5% of sorbitan sesquioleate, 0-2.5% of phytosterol / octyldodecanol lauroyl glutamate, 0.2%-1% of a thickener, 0-1% of a preservative, 2%-15% of a coloring agent, 0-2% of a filling agent and 65%-75% of water. By utilizing an ultrasonic emulsification process, the use amount of an emulsifying agent is reduced, the water resistance and oil resistance of the product are enhanced, the makeup effect durability is improved, a dizzy makeup phenomenon does not occur, meanwhile, the stability of the BB cream is improved, the irritation is reduced, and bacteria can be effectively killed; and a natural skin-simulated moisturizing film is formed by virtue of a synergistic interaction effect of PCA sodium salt, hyaluronic acid and polyquaternary ammonium salt-51, so that the moisturizing property of the product is improved, and skin is moist and smooth.

The invention discloses a foam fire extinguishing agent with a high-efficiency environment-friendly evaporation-inhibiting function. The foam fire extinguishing agent is characterized by comprising the following components in percentages by weight: 1% to 6% of an evaporation inhibiting agent, 1% to 6% of a fluorocarbon surfactant, 4% to 16% of a hydrocarbon surfactant, 2% to 6% of a polymer thickening foam stabilizer, 4% to 10% of a cosolvent, 4% to 10% of a pour point depressant, 0.1% to 0.5% of a preservative, and the balance of water. According to the foam fire extinguishing agent capable of inhibiting the volatilization of fuel and having the high-efficiency environment-friendly evaporation-inhibiting function, the coverage inhibition performance of the fire extinguishing agent can beimproved, and when foam is sprayed onto an oil surface, a dense multiphase composite film is formed at the oil interface, so that the volatilization of flammable liquids and oil can be effectively prevented, and fire is prevented from having re-combustion.

The invention provides a preparation method of a plugging agent for drilling fluids. The preparation method comprises: dissolving polystyrene foam in an ester-based monomer to obtain a foam liquid; carrying out a reaction on water, an organic acid-based monomer, an ester-based monomer and an initiator to obtain an oligomer; and carrying out a reaction on the oligomer, an amide-based monomer, the foam liquid and an initiator to obtain the latex plugging agent for drilling fluids. According to the present invention, the external surfactant is not introduced during the preparation of the latex plugging agent used for drilling fluids and prepared by soap-free emulsion polymerization; and the oligomer in the preparation process is hydrophilic and lipophilic, can be used as the emulsion polymerization stabilizer so as to achieve the long stability period of the emulsion and minimize the foaming property of the plugging agent in the drilling fluid, and further has good compatibility and goodtemperature resistance so as to physically and chemically block the micro-crack stratum of the mud shale, prevent the drilling fluid from entering the stratum and effectively improve the stability ofthe wellbore. The invention further provides a drilling fluid.

The invention provides an intestinal tract slow-release bovine colostrum and sea cucumber peptide chewable tablet and a preparation method thereof. The chewable tablet comprises the following components: casein phosphopeptide, sea cucumber peptide, bovine colostrum powder, soybean peptide, concentrated whey protein, lutein ester, vitamin C, fruit and vegetable powder, resistant dextrin, lactose, erythritol, sorbitol, DL-malic acid, xylooligosaccharide and magnesium stearate; and the chewable tablet also comprises a targeted slow-release biocompatible microcapsule which comprises a polycarbonate film, bovine serum albumin freeze-dried powder, amino acid, chitosan oligosaccharide, lecithin and poly(2-ethyl-2-oxazoline) grafted glucan nanoparticles. The intestinal tract slow-release bovine colostrum and sea cucumber peptide chewable tablet prepared by using the preparation method and the components provided by the invention can release active peptides with quality and nutrition effects inintestinal tracts, and can penetrate through a blood brain barrier to act on brain cells to repair cardiovascular and cerebrovascular diseases and injuries after oxidative stress; and the bovine colostrum powder and the concentrated whey protein are digested in the stomach in an auxiliary manner, so the human immunity is enhanced.

The invention discloses a preparation method of a plastic masterbatch heavy calcium functional filler for a film. The filler is mainly prepared from the following raw materials in percent by weight: 57-70% of heavy calcium raw powder, 2-3% of dispersing agent, 1-3% of modifying agent, 0.3-1% of stearic acid and 27-37% of water. Activation and modification are completed in two steps: in the first step, inorganic particles are converted into organic particles, so that calcium carbonate has hydrophilic and lipophilic dual-polarity functions and has good compatibility with resin; and in the secondstep, the oil absorption value and the dispersive external lubrication degree of the calcium carbonate functional filler are lowered, so that the particles are suspended and dispersed in the resin, the compatibility with the carrier resin and the suspension and dispersion requirements are met, the surface traction of the filler is similar to that of the resin, and the filler has multi-functionalpolarities such as lipophilicity.

The invention discloses a highly anti-corrosion and environment-friendly water-based epoxy curing agent and a preparation method thereof. The components of the water-based epoxy curing agent, calculated in mass percentage, are: 5-15% of bisphenol A epoxy resin, alcohol ether 3% to 8% of quasi-solvent, 35 to 45% of polyethylene glycol, 0.002 to 0.01% of catalyst, 28 to 32% of compound cross-linking agent and 11 to 18% of reactive diluent. Isophorone diamine and diethylene triamine in a ratio of 2 to 6.5:1. The water-based epoxy curing agent provided by the invention can effectively improve the corrosion resistance of the coating.

The invention discloses an anticorrosive mildew-proof water-based epoxy curing agent and a preparation method thereof. The water-based epoxy curing agent comprises the following components in percentage by mass: 25%-36% of polyethylene glycol, 10%-20% of epoxy resin, 0.002%-0.007% of a catalyst, 5%-10% of a quenching agent, 30%-36% of a compound crosslinking agent, 5%-9% of an active diluent, 3.5%-6% of a solvent and 0.05%-0.2% of a bactericide, wherein the compound crosslinking agent comprises m-xylylene diamine and isophorone diamine in a mass ratio of 5 / 3 to 14 / 3. The water-based epoxy curing agent can effectively improve the corrosion resistance and mildew resistance of a coating, the raw material cost is not high, and the later maintenance cost of the coating is greatly reduced.

The invention provides a nutritional type collagen peptide and sea cucumber polypeptide chewable tablet for adjusting endocrine and a preparation method thereof. The chewable tablet comprises the following ingredients: marine fish oligopeptide, collagen peptide, sea cucumber polypeptide, soybean peptide, soy protein powder, concentrated whey protein, vitamin C, fruit and vegetable powder, lactose,resistant dextrin, xylooligosaccharide, erythritol, sorbitol, citric acid and magnesium stearate. The fruit and vegetable powder includes the following ingredients: kiwi fruit powder, tomato powder,blackberry powder, pumpkin powder, carrot powder, mushroom powder and the balance strawberry powder. The chewable tablet provided by the invention can maintain the activity of various active peptides,and directly acts on endocrine glands including the hypothalamus, the pituitary, the thyroid, the parathyroid, the adrenal, the gonad and pancreas after reaching intestinal tracts and being absorbedby small peptide transporters in the intestinal tracts, then, the endocrine imbalance of women is fundamentally regulated, and then the technical effects of resisting aging, beautifying skin and maintaining skin elasticity from the inside out are achieved.

The invention relates to a method for making a permanent glass slide specimen of bryophyte. Gum Arabic, double distilled water, glycerin and chloral hydrate are mixed with stirring at normal temperature, and a liquid mounting medium is prepared; moss leaves or plants are placed in the double distilled water, after infiltration, the moss leaves or plants are placed in the center of a slide glass with a droplet of double distilled water, and the moss leaves or plants are observed under a 10x microscope for adjusting shapes; a piece of filter paper is used for absorbing double distilled water which is 1 millimeter or more far away from the specimen, till the circumference of the moss specimen is moistened without excessive double distilled water; a glass rod is used for dipping 1-2 droplets of the mounting medium, and the droplets are dropped on the moss specimen, a piece of cover glass is covered without bubbles contained, the specimen is placed at normal temperature till the mounting medium is dried and can fix the specimen without movement, a label is plastered on the slide glass, and the permanent glass slide specimen of bryophyte is prepared. Compared with prior art, the produced specimen has the advantages of good transparency, simple method, long preservation time limit, and good preservation effect of original state of the specimen.

The invention belongs to the technical field of coatings, and particularly relates to graphene modified silicon-titanium nano polymer slurry as well as a preparation method and application thereof. The graphene modified silicon-titanium nano polymer slurry provided by the invention is added into a polymer coating, and the medium permeability resistance of a formed coating layer is greatly improved through the superstrong gas and liquid permeability resistance of graphene and a silicon-titanium graphene network structure; due to the corrosion resistance of graphene, titanium and silicon nanoparticles, the coating layer is endowed with super-strong stability, is not easy to react with various media such as acid, alkali and salt, is not easy to consume to form pores and is not easy to react with corrosive media to generate soluble salt or cathode loose and expanded products, and the components and the structure of the coating layer are stable for a long time and are not damaged; and the silicon-titanium graphene network structure can improve the adhesive force, hardness, toughness, wear resistance, crack resistance and other comprehensive corrosion resistance of the coating layer.

The invention provides a sea cucumber and oyster peptide chewable tablet for nourishing liver, protecting kidney and resisting fatigue and a preparation method thereof. The chewable tablet is preparedfrom the following components: sea cucumber peptide, oyster peptide, casein phosphopeptide, whey protein concentrate, fruit and vegetable powder, lactose, xylooligosaccharide, resistant dextrin, fructo-oligosaccharide, chitosan oligosaccharide, vitamin C, erythritol, sorbitol, citric acid, DL-malic acid, magnesium stearate and targeted slow-release biocompatible microcapsules. The raw materials are natural, various in components, light in concentration and convenient to take; the chewable tablet has the advantages that the requirements of macroelements, macroelements and microelements are met; health is taken as a central idea, various nutrient requirements of teenagers are met, regulation substances with physiological functions and the regulation effect of'peptides' on cells are used asauxiliary materials, the disadvantages of the existing products are broken through, and a physiological function which is convenient to use, safe, reliable, capable of rapidly and timely conveying nutrients to each cell of each tissue of the whole body and capable of regulating and controlling cell growth, replication, reproduction and metabolism is provided.

The invention discloses a high-corrosion-resistance environment-friendly waterborne epoxy curing agent and a preparation method thereof. The waterborne epoxy curing agent comprises the following components in percentage by mass: 5 to 15% of bisphenol A epoxy resin, 3 to 8% of an alcohol ether solvent, 35 to 45% of polyethylene glycol, 0.002 to 0.01% of a catalyst, 28 to 32% of a compound cross-linking agent and 11 to 18% of a reactive diluent, wherein the compound cross-linking agent comprises isophorone diamine and diethylenetriamine in a mass ratio of (2 to 6.5): 1. The waterborne epoxy curing agent can effectively improve the corrosion resistance of the coating.

The invention provides an application of a magnetic caramelized carbon nano material in removing heavy metals in a water body. The preparation method comprises the following steps: adding a magnetic caramelized carbon nano material gamma-Fe2O3-@CCM into a liquid matrix containing heavy metals; adjusting the pH of the system to be 2-7, carrying out ultrasonic uniform dispersion, performing reciprocating oscillation for 3-8 minutes after the ultrasonic treatment, and complexing and simultaneous removing trace heavy metals in water, wherein the adding amount of the caramelized carbon nano material gamma-Fe2O3@CCM is 0.2-0.6 g / L. According to the application method, arsenic and selenium in the industrial wastewater can be complexed and removed at the same time, the arsenic removal rate reaches116 [mu]g / g, the selenium removal rate reaches 185 [mu]g / g, lead and vanadium in the industrial wastewater can be complexed and removed at the same time, the lead removal rate reaches 248 [mu]g / g, and the vanadium removal rate reaches 319 [mu]g / g.

The invention provides a slow-release nutritional VC lutein peptide chewable tablet and a preparation method thereof. The chewable tablet includes the following components: bovine colostrum powder, goat milk powder, whey protein concentrate, marine fish oligopeptide, casein Protein phosphopeptide, soybean peptide, soybean protein powder, sea cucumber peptide, oyster peptide, fruit and vegetable powder, lactose, resistant dextrin, chitosan oligosaccharide, fructooligosaccharide, vitamin C, lutein ester, xylo-oligosaccharide, erythromycin Sugar alcohol, sorbitol, citric acid, silicon dioxide, maltodextrin, magnesium stearate; also includes targeted sustained-release biocompatible microcapsules. The chewable tablet prepared by the preparation method and composition provided by the present invention can release marine fish oligopeptide, casein phosphopeptide, sea cucumber peptide, soybean peptide and oyster peptide with nutritional effect in the intestinal tract, and can pass through the blood-brain barrier and act on Eye cells, repair eye fatigue and provide lutein ester and citric acid needed for eye work, provide brain cells to work and improve brain nutrition.

The invention provides an aqueous self-emulsifying epoxide resin latex emulsion and a preparation method thereof. The invention adopts a one-step method to prepare the aqueous self-emulsifying epoxide resin latex emulsion. While the performance of the latex emulsion is maintained to be good, the preparation method has the advantages of simple operation and energy conservation, and can be widely applied to environment-friendly paint, cementing compound, etc.

The invention relates to a cathode electrophoretic coating containing an anti-shrinkage agent and a preparation method thereof, the cathode electrophoretic coating comprises water, emulsion and color paste, the emulsion contains the anti-shrinkage agent, the anti-shrinkage agent is polypropylene glycol, and the molecular weight of the polypropylene glycol is 1000-4000. According to the cathode electrophoretic coating containing the anti-shrinkage agent, the polypropylene glycol anti-shrinkage agent is added, the prepared emulsion is uniform and stable, and the prepared cathode electrophoretic coating effectively restrains oil shrinkage cavities in the baking and curing process, so that the leveling property and glossiness of the coating film are improved.

The invention discloses a preparation method of polyoxyethylene monocaprylic capric acid glyceride, comprising the following steps: 1) esterification reaction: using glycerol and caprylic capric acid as raw materials, adding a solid catalyst, separating water under nitrogen flow, and heating to 150 ℃ ℃-180℃, keep the temperature for 3-6h, then drop to 50-70℃; 2) Purify monocaprylic acid ester; 3) Condensation reaction of ethylene oxide: take the purified monooctanoic acid glyceride as raw material, add alkali After 20-40min, slowly introduce ethylene oxide for 3-5h, add and ripen, depressurize, cool down and degas the material to obtain the product. The present invention has the characteristics of reasonable process, high product purity and better use performance.

The invention relates to a method for making a permanent glass slide specimen of bryophyte. Gum Arabic, double distilled water, glycerin and chloral hydrate are mixed with stirring at normal temperature, and a liquid mounting medium is prepared; moss leaves or plants are placed in the double distilled water, after infiltration, the moss leaves or plants are placed in the center of a slide glass with a droplet of double distilled water, and the moss leaves or plants are observed under a 10x microscope for adjusting shapes; a piece of filter paper is used for absorbing double distilled water which is 1 millimeter or more far away from the specimen, till the circumference of the moss specimen is moistened without excessive double distilled water; a glass rod is used for dipping 1-2 droplets of the mounting medium, and the droplets are dropped on the moss specimen, a piece of cover glass is covered without bubbles contained, the specimen is placed at normal temperature till the mounting medium is dried and can fix the specimen without movement, a label is plastered on the slide glass, and the permanent glass slide specimen of bryophyte is prepared. Compared with prior art, the produced specimen has the advantages of good transparency, simple method, long preservation time limit, and good preservation effect of original state of the specimen.

The invention discloses infiltrating type emulsifiable asphalt and a preparation method thereof, and relates to the technical field of asphalt. The preparation method comprises the following steps: firstly, enabling nano silicon dioxide, di (triisopropylsilyl) amine and epoxypropoxypropyltrimethoxysilane to react to prepare amphipathic double-spherical modified silicon dioxide sol which can emulsify asphalt and simultaneously drive the asphalt to enter tiny pores in the surface of a stone material, so that the asphalt has adhesion; then secondary modification is carried out, and chitosan and dodecane primary amine are introduced, so that the surface tension of the asphalt emulsion is reduced, and the adhesion of asphalt is improved; then, the expanded graphite is subjected to microwave ultrasonic stripping, mesoporous nanosheets are prepared, magnetic iron is deposited through pulse current assisted plasma sputtering, and magnetic nanosheets are obtained; and then, stirring the magnetic nanosheets and the modified asphalt emulsion in a magnetic field, and carrying out shearing treatment to form a three-dimensional network structure which has a low-temperature-resistant effect. The infiltrating type emulsifiable asphalt prepared by the invention has the effects of high adhesion and low temperature resistance.

The nanometer material leather assistant consists of nanometer material 1-60 wt%, moistener 1-30 wt%, dispersant 1-80 wt% and adhesive 1-30 wt%. During tanning, the nanometer material produces photocatalysis to decompose fungi, bacteria and matters causing decay and smelling, and makes leather possess antifungus, antiseptic, wash resisting and other functions.

The invention discloses a foam fire extinguishing agent with a high-efficiency environment-friendly evaporation-inhibiting function. The foam fire extinguishing agent is characterized by comprising the following components in percentages by weight: 1% to 6% of an evaporation inhibiting agent, 1% to 6% of a fluorocarbon surfactant, 4% to 16% of a hydrocarbon surfactant, 2% to 6% of a polymer thickening foam stabilizer, 4% to 10% of a cosolvent, 4% to 10% of a pour point depressant, 0.1% to 0.5% of a preservative, and the balance of water. According to the foam fire extinguishing agent capable of inhibiting the volatilization of fuel and having the high-efficiency environment-friendly evaporation-inhibiting function, the coverage inhibition performance of the fire extinguishing agent can beimproved, and when foam is sprayed onto an oil surface, a dense multiphase composite film is formed at the oil interface, so that the volatilization of flammable liquids and oil can be effectively prevented, and fire is prevented from having re-combustion.

The invention provides an insect-resisting and refreshing vein bookmark and a preparation method thereof. The method includes the following steps that (1) pretreatment is performed as follows: Magnolia denudate leaves are selected, and Magnolia denudate veins are obtained after soda boiling and removal of mesophyll; (2) insect-resisting treatment is performed as follows: the Magnolia denudate veins obtained in step (1) are soaked in an alum solution to be treated and then are air-dried; (3) aroma enhancement treatment is performed as follows: the air-dried Magnolia denudate veins are soaked inan essential oil mixed solution for aroma enhancement treatment; (4) sealing is performed as follows: the obtained Magnolia denudate veins are placed in the middle of transparent rigid plastic with distilled water dropped, and after the forms of the Magnolia denudate veins are kept to be completely stretched, suction drying is performed by the aid of filtering paper; a filling agent is slowly dropped in the hollowed-out positions of the Magnolia denudate veins, the redundant filling agent is removed by the aid of a scraper, two pieces of plastic are bonded under the condition that no bubblesare contained, modification cutting is performed according to the peripheral shape of the Magnolia denudate veins after the Magnolia denudate veins are completely dried, and bookmark making is completed. The prepared bookmark can resist insects, has the refreshing effect and is beautiful in appearance and transparent.