125results about How to "Simple recipe" patented technology

The invention discloses a method for preparing a PLA-PCL polyester copolymer for a biomass pressure-sensitive adhesive under a non-catalytic condition, which comprises the following steps: S1, putting L-LA and epsilon-CL into a reaction container, adding ethylene glycol or glycerol into the reaction container, and subsequently carrying out argon protection treatment; s2, heating the reaction container containing the sample at 180-240 DEG C for 3 hours; and S3, after the reaction, forming a uniform system, namely obtaining the PLA-PCL polyester copolymer for the biomass pressure-sensitive adhesive. According to the preparation method, L-LA and epsilon-CL are taken as raw materials, an alcohol compound is taken as an initiator, and the PLA-PCL polyester copolymer for the biomass pressure-sensitive adhesive is directly prepared through reaction at high temperature. The method has the beneficial effects that no catalyst is needed in the reaction process, the process method is simple and convenient, and the preparation process is short in time consumption; the prepared product can be used for preparing a biomass pressure-sensitive adhesive.

The invention relates to the field of hydrogel preparation, and discloses anti-scale zwitter-ion hydrogel as well as a preparation method and application thereof. The method comprises the following steps: firstly, initiating an oxazine derivative monomer to polymerize through a double-end initiator to generate dihydroxyl polyoxazine; and then, removing a side chain of the polymer to obtain the dihydroxy polypropylene imine. Then, dihydroxy polypropylene imine is selected for further reaction to generate a zwitter-ion precursor polymer, and the zwitter-ion precursor polymer is hydrolyzed to obtain the polypropylene imine zwitter-ion derivative. And finally, converting hydroxyl groups at two ends, synthesizing a zwitterionic macromolecular cross-linking agent, and carrying out polymerization cross-linking in an aqueous solution to prepare the anti-scale zwitterionic hydrogel. The hydrogel is simple in formula, is completely composed of the zwitterionic cross-linking agent, has excellent anti-scaling performance such as protein adsorption resistance, bacterial adsorption resistance and cell adsorption resistance, and is suitable for biological materials, medical devices, implant materials and cell delivery materials.

The invention discloses a preparation method and application of a marine high-molecular polysaccharide hydrogel wound dressing. The hydrogel is formed by cross-linking the marine polysaccharide composition and the cross-linking agent, and the gelation time is short and is about 15 seconds; pores are uniform and moderate; the self-healing property, the adhesion property and the swelling property are high; the antibacterial effect is strong, and the inhibition rates on escherichia coli and staphylococcus aureus are both higher than 90%; skin irritation and skin allergy are avoided, and the biological safety is high; hemostasis can be rapidly carried out within 10s, and the bleeding amount is obviously reduced; the hydrogel dressing can rapidly shrink and scab a wound surface, has the effect of promoting wound healing, and has the effects of stopping bleeding and promoting wound healing which are obviously superior to those of commercially available hydrogel dressings (German Hydrosorb Gel) (Plt; 0.05), and is a safe and effective high-performance wound dressing. In addition, the hydrogel is simple in formula and high in industrialization prospect, is expected to be developed into novel wound dressings and medical instruments, and breaks through the trapping that domestic hydrogel dressings are mostly dependent on import.

The invention discloses a plasma-assisted liquid metal self-activation method and application thereof.The self-activation method comprises the steps that patterned liquid metal photoresist is subjected to plasma treatment, hydrophilic groups are introduced into liquid metal nanoparticles and a silicon substrate, and then an elastomer solution is directly poured on a micro-scale liquid metal pattern; and when the elastomer film is stripped from the silicon substrate, due to the interaction of hydrophilic groups, the adhesive force and cohesion between the liquid metal nanoparticles and the silicon substrate and between the liquid metal nanoparticles are enhanced, so that the local stress concentration is enhanced, and the discrete particles are more easily broken and fused to form a conductive path. This process maintains high quality of the lithographically defined microscale liquid metal pattern while converting it from an insulator to a high conductor.

The invention belongs to the technical field of traditional Chinese medicine composition preparation, particularly relates to a composition prepared by taking fructus chebulae and liquorice as main materials, and further relates to a preparation method of the composition and application of the composition in antibacterial and anti-inflammatory, anti-oxidation, whitening, anti-saccharification and antipruritic products. According to the composition disclosed by the invention, main materials comprise fructus chebulae and liquorice; the composition is obtained by crushing the fructus chebulae and the liquorice, performing enzymolysis, performing water extraction, performing concentration, performing alcohol extraction and performing purification. Based on different effects, different combination schemes of the fructus chebulae and the liquorice are provided, so that the effects of the fructus chebulae and the liquorice are more remarkable after the fructus chebulae and the liquorice are combined according to different proportions; in addition, it is also verified that after the medicine terminalia fruits and the licorice roots in different proportions are combined, certain differences exist when the medicine terminalia fruits and the licorice roots are applied to different products. On the basis that the fructus chebulae and the liquorice are combined according to a reasonable proportion, the invention further provides a preparation method of products which are suitable for the formulas and have different effects.

The invention discloses a power cable ethylene propylene rubber insulating rubber material, and relates to a power cable insulating rubber material. The problem that an existing ethylene propylene rubber insulating material is low in modulus and tensile strength is solved. The power cable ethylene propylene rubber insulation sizing material comprises the following components in parts by weight: ethylene propylene rubber 2470, ethylene-vinyl acetate copolymer, ethylene propylene rubber 4044, dicumyl peroxide, high-density paraffin oil, low-density paraffin oil, microcrystalline wax, white carbon black, superfine talcum powder, modified calcined clay, vinyl trimethoxy silane, 2-thiol benzimidazole, 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, a coupling agent, a coupling agent and an antioxidant. The catalyst is prepared from the following raw materials: a 1, 2, 4-trimethyl-1, 2-dihydroquinoline polymer, dicumyl peroxide and zinc oxide. The power cable ethylene propylene rubber insulation rubber material is simple in formula, improves the flame retardant property of the insulation material, reduces the cost of the insulation material, has the characteristics of excellent electrical performance, good processing technology and the like, also has good mechanical and physical properties, and promotes the popularization and application of ethylene propylene rubber insulation middle and high voltage power cables.

The invention provides a preparation method of single-component alkali slag-regenerated micropowder cement. The method comprises the following steps: mixing regenerated micro powder, slag, nickel slag and a solid alkali activator, and carrying out ball milling to prepare the single-component alkali slag-regenerated micro powder cement. Potential volcanic ash activity in the regenerated micro powder is activated through two activation means of mechanochemistry and alkali excitation, the particle morphology is improved by adjusting the proportion of RBP and RCP in the regenerated micro powder, the alkalinity of a system is increased through nickel slag, the alkali excitation reaction process is promoted, and macroscopic performance is improved. The invention aims to realize resource utilization of the building solid waste regenerated micro powder, the regenerated micro powder is introduced, the mechanical property of the cement is improved, and greenization of a cementing material, an admixture and a production process is realized.

The invention provides a ceramic tile adhesive and a preparation method thereof, and relates to the technical field of building materials, the ceramic tile adhesive comprises the following components by weight: 20-40 parts of cement; 40 to 70 parts of quartz sand; 2-6 parts of calcium formate; 0.1 to 1 part of cellulose ether; and 0.5-5 parts of latex powder. According to the ceramic tile adhesive provided by the invention, through the synergistic effect of the vinyl chloride-based copolymer latex powder and all the components, the prepared ceramic tile adhesive has excellent water resistance and corrosion resistance, and keeps good binding power and low-temperature flexibility. Besides, due to the addition of the vinyl chloride-based copolymer latex powder, the ceramic tile adhesive disclosed by the invention can achieve excellent water resistance without adding a hydrophobic compound or a water repellent, the formula is simpler, and the cost is lower.

The invention discloses a porous polymer composite diaphragm and a preparation method thereof, and relates to the technical field of batteries. The method comprises the following steps: 1, mixing polyether sulfone with a solvent, and fully dissolving to form a homogeneous solution, thereby obtaining feed liquid A; mixing and uniformly stirring an auxiliary agent and a solvent, adding an inorganic filler, and continuously stirring to uniformly disperse the inorganic filler to obtain a feed liquid B; 2, mixing the feed liquid A and the feed liquid B, and fully stirring to form slurry; 3, uniformly coating a base film with the slurry by adopting a gravure coating method to obtain a wet coating diaphragm; and 4, soaking the wet coating diaphragm into a coagulating bath, then soaking in water, washing, and drying to obtain the porous polymer composite diaphragm. The porous polymer composite diaphragm and the preparation method thereof provided by the invention have the beneficial effects that polyether sulfone is used as a main body material, so that the heat resistance, the dimensional stability and the electrolyte wettability of the diaphragm are improved, the internal resistance of a battery is reduced, and the safety and the electrochemical performance of the battery are improved.

The invention discloses a fructus alpiniae oxyphyllae culture medium and application thereof. Belongs to the technical field of tissue culture. The culture medium comprises a callus induction and proliferation culture medium, a cluster bud differentiation and proliferation culture medium and a rooting culture medium. Each culture medium is based on the cheap and easily available MS or 1 / 2 MS culture medium, appropriate exogenous hormones or raw materials are added, each culture medium is scientific and reasonable in formula and can be respectively used for each stage of tissue culture of the alpinia oxyphylla, and the whole culture process is high in propagation speed, short in period and high in survival rate; the excellent hereditary character of the alpinia oxyphylla variety can be well maintained. The culture medium is simple in formula and low in cost, and has good popularization and application prospects.

This invention relates to the field of pesticide technology, specifically to a fungicidal composition, its preparation method, and its uses. The invention provides a fungicidal composition comprising an active ingredient, a first functional component, a second functional component, and an adjuvant; the active ingredient comprises fluthiazopyrone and cyazofamid; the first functional component comprises at least one selected from silica, titanium dioxide, and zinc oxide; the second functional component comprises at least one selected from citric acid, acetic acid, benzoic acid, urea, and triethanolamine. By introducing specific first and second functional components, this invention synergistically works with the active ingredient, effectively overcoming the key defects of fluthiazopyrone's easy photodegradation and cyazofamid's easy hydrolysis, thus improving the stability of the compound formulation; while ensuring the excellent control efficacy and resistance management advantages of both against oomycete diseases such as grape downy mildew, it extends the duration of action and weather resistance of the agent, providing a more stable, efficient, and long-lasting solution for field application.

The application provides a cold-dissolved liver-protecting medicinal tea and a preparation method and application thereof. The preparation raw materials of the cold-dissolved liver-protecting medicinal tea include green tea, rattan tea, ginseng, lotus leaves, mulberries and hawthorn. The preparation method comprises the steps of grouping extraction and spray drying of the preparation raw materials. The air inlet temperature of the spray drying is 130-150 DEG C, and the air outlet temperature is 75-85 DEG C. The grouping extraction comprises jointly extracting the ginseng, mulberries and hawthorn, and jointly extracting the green tea, rattan tea and lotus leaves in the presence of cyclodextrin. The cyclodextrin comprises one or more of beta-cyclodextrin and hydroxypropyl-beta-cyclodextrin. The cold-dissolved liver-protecting medicinal tea is derived from natural plants, has a simple formula, is safe and effective, is convenient to use, and can retain active ingredients to the greatest extent.

The invention belongs to the technical field of food processing, and particularly relates to an enzymolysis lotus seed tablet for promoting digestion and release of curcumin and a preparation method of the enzymolysis lotus seed tablet. The curcumin-lotus seed based tablet disclosed by the invention is prepared from the following raw materials: curcumin, lotus seed powder and enzyme; the preparation method comprises the following steps: dispersing the lotus seed powder in water, performing high-speed shearing, adding alpha-amylase, and performing enzymolysis to obtain lotus seed slurry; mixing the lotus seed powder with a curcumin solution, drying to prepare curcumin-lotus seed composite powder, and finally tabletting to prepare the curcumin-lotus seed tablet. The tablet disclosed by the invention is simple in ingredients, free of addition of auxiliary materials and capable of meeting the requirements of people on label cleaning; meanwhile, the enzyme modified lotus seed powder is used as an embedding medium of curcumin, can exert the medicinal and edible effects of lotus seeds, such as heart nourishing and blood pressure lowering, while being used as an embedding wall material, and is a natural and safe plant-based delivery carrier. The tablet provided by the invention is safe and green, and is a convenient, healthy and high-quality tablet health product.

The invention discloses a valsartan-silicon dioxide micro-capsule orally disintegrating tablet and a preparation method thereof, and relates to the technical field of medicines. The invention relates to a preparation method of a valsartan-silicon dioxide micro-capsule orally disintegrating tablet. The preparation method comprises the following steps: S11, preparing an aqueous solution of a cationic surface active agent; s12, valsartan is added and stirred, so that the surface of valsartan is positively charged; s13, continuing to add silicon dioxide and stirring to enable a silicon dioxide monomer to be adsorbed on the surface of valsartan; and S14, continuously adding the cationic polymer and carrying out high-speed shearing, so that the cationic polymer is encapsulated on the surface of the silicon dioxide. The valsartan-silicon dioxide micro-capsule orally disintegrating tablet prepared by the invention has a medicine taste masking effect, and the taste masking effect is excellent; meanwhile, the problems of poor compressibility and flowability of materials caused by hygroscopicity and viscosity of valsartan are solved; a sweetening agent and a flavoring agent are not needed in the formula, so that the formula is simplified, impurities are prevented from being introduced into the essence, and the stability is effectively improved.

The invention provides a defoaming agent for digestive endoscopy as well as a preparation method and a use method thereof, and belongs to the technical field of medicines. The defoaming agent comprises 1%-10% of organic silicone oil and 90%-99% of polyethylene glycol; the preparation method comprises the following steps: weighing the organic silicone oil and the polyethylene glycol according to a set proportion, and respectively heating to 75-85 DEG C to form a hot melt; carrying out isothermal mixing on the two components to obtain a mixed hot melt, and carrying out intermittent shearing and stirring in a wall breaking machine to obtain an emulsified melt; flatly spreading the emulsified molten liquid in a pre-cooled container, sealing a cover, and freezing to obtain a white waxy sheet block; and crushing and sieving the white waxy sheet blocks to obtain white organic silicone oil dry milk powder, namely the defoaming agent. The method comprises the following steps: adding water into a defoaming agent and uniformly mixing to prepare a silicone oil emulsion before digestive endoscopy; the composition is orally taken or sprayed on an examined part. The dry emulsion type defoaming agent provided by the invention is simple in formula, free of additives, free of any potential safety risk, safe and reliable, good in stability and excellent in defoaming effect.

The present invention belongs to the technical field of pharmaceutical preparations, and particularly relates to a preparation for preventing and treating gastric mucosal damage and its application. By selecting sanguisorba officinalis, coptis root, costusroot and angelica sinensis for reasonable combination, the formula is simple and the processing is convenient, and the problems of complex components, high recurrence rate, easy induction of drug resistance and large toxic and side effects of existing drugs are solved.

The invention provides environment-friendly fluoride-free KR desulfurization powder which comprises the following components in percentage by mass: 78-90% of CaO; 1%-4% of Al; 4%-8% of Al2O3; 0 to 3 percent of SiO2; 0 to 3 percent of MgO; 0 to 0.05 percent of S; the balance is impurities; traditional fluorite is not used as a fluxing agent, so that the environment is not polluted, a ladle is not eroded, and the steelmaking cost is reduced; high-efficiency desulfurization is realized, Al2O3 can be generated by combining with free oxygen in molten iron, the oxygen activity is reduced, and the desulfurization reaction speed can be further increased; and compensating temperature drop. The formula is simple, and the problems that fluorite is harmful to the environment and can erode ladles, and the steelmaking cost is increased are solved.

This invention provides a food-grade ultramicroemulsion for improving nutrient stability, its preparation method, and its application, relating to the field of food technology. The food-grade ultramicroemulsion of this invention, by weight, comprises the following components: 5-20 parts polyol, 5-30 parts oil, 0.1-2 parts primary emulsifier, 0.01-0.5 parts co-emulsifier, and 60-90 parts water; the primary emulsifier is selected from at least one of polyglycerol fatty acid esters and mono- and diglycerol fatty acid esters; the co-emulsifier is selected from at least one of sucrose fatty acid esters, diacetyl tartaric acid mono- and diglycerides, phospholipids, and citrate fatty acid glycerides. The components are mixed and sheared under mild conditions of 50-65°C, resulting in an emulsion with a narrow particle size distribution, high stability, and high retention rate of fat-soluble nutrients.

The invention discloses a fructus cinnamoii essential oil composition with a bacteriostatic effect as well as a preparation method and application thereof, and relates to the technical field of medicines. The invention discloses a fructus cinnamoii essential oil composition with a bacteriostatic effect, and the fructus cinnamoii essential oil composition with the bacteriostatic effect comprises the following components: 1-3.5 parts by mass of fructus cinnamoii essential oil, 1 part by mass of a wall material composed of gelatin and Arabic gum in a mass ratio of 0.4: 0.6-0.7: 0.3, and 0-4 parts by volume of a formaldehyde solution, the preparation method of the composition is simple, and the composition has a remarkable inhibiting effect on aspergillus flavus, penicillium expansum and fusarium oxysporum, and has a good application prospect. The invention can be used for preparing fungus inhibitors. The fructus cinnamoii essential oil microcapsule prepared from the fructus cinnamoii composition provided by the invention is stable in physicochemical property and remarkable in antibacterial effect, the preparation method is simple, and the fructus cinnamoii essential oil microcapsule has a wide market application prospect.

The invention discloses a foliar fertilizer for improving the drought resistance of peach trees. The foliar fertilizer for improving the drought resistance of peach trees provided by the invention consists of lecithin, lauric acid and sodium silicate. By using the foliar fertilizer, the damage of drought to leaf tissue can be significantly reduced, the relative electrical conductivity of the leaves can be significantly reduced, the relative water content and photosynthetic rate of peach leaves under drought conditions can be increased, the ability of peaches to resist drought stress can be increased, the growth of plants can be promoted, the yield and quality of peaches can be improved, and the fertilizer has the advantages of quick effect, simple use and easy acceptance by the public.

This application provides an electrolyte, a lithium-ion battery, and an electrical device, relating to the field of lithium-ion batteries. The electrolyte includes an electrolyte additive, which comprises an alkenyl-substituted phthalimide compound; the structural formula of the alkenyl-substituted phthalimide compound is: ; wherein R1 and R2 are independently selected from H and C. 1‑6 Alkyl group, C substituted with at least one fluorine group 1‑6 The compound can be any one of alkyl, cyano, or ester groups. The alkenyl-substituted phthalimide compounds in this application possess multiple functions, including film formation, high voltage stability, lithium salt stability, HF suppression, and gas suppression, effectively improving the problems of existing electrolyte additives having single functions and insufficient performance targeting. Using alkenyl-substituted phthalimide compounds as electrolyte additives eliminates the need for multiple additives to meet electrolyte requirements, effectively simplifying electrolyte formulation and reducing production costs.

The invention discloses a lemon-flavor gas-containing milk beverage and a preparation method thereof, and belongs to the technical field of beverages, every 1000 mL of the lemon-flavor gas-containing milk beverage contains 30-50 g of a milk base, 50-70 g of white granulated sugar, 65-85 g of high fructose corn syrup, 5-7 g of a stabilizer, 3.8-5 g of an acidity regulator, 2-4 g of essence and perfume, 0.02-0.05 g of a defoaming agent and the balance of purified water, the aeration volume is 1.5-2.5 volume times, the protein content is 1.0-1.1%, and the balance is purified water. The lemon-flavored gas-containing milk beverage can ensure the shelf life stability and good taste of the product under the condition that no preservative is added; the gas-containing beverage and cow milk raw materials are combined, the requirement of long-time continuous production can be met through special formula compatibility and stable system construction, and meanwhile, the normal taste and stable quality of the product within the shelf life can be realized.

The invention relates to the technical field of traditional Chinese medicines, in particular to a traditional Chinese medicine ointment for treating herpes zoster and a preparation method and application thereof. The traditional Chinese medicine ointment is prepared from the following raw materials in parts by weight: 10-20 parts of raw sanguisorba officinalis, 10-20 parts of spina gleditsiae, 10-20 parts of raw liquorice and 5-15 parts of rhizoma smilacis glabrae. According to the traditional Chinese medicine ointment, the raw sanguisorba officinalis, the spina gleditsiae, the raw liquorice and the rhizoma smilacis glabrae are reasonably combined for use according to the theory of syndrome differentiation and treatment of traditional Chinese medicine, and the ointment has the effects of diminishing inflammation, relieving pain, promoting blood circulation, detoxifying, expelling pus and promoting tissue regeneration.

The present invention belongs to the technical field of non-woven fabric manufacturing, and specifically relates to a non-woven fabric with high tear resistance and a preparation method. The non-woven fabric with high tear resistance provided by the present invention includes the following components and their weight proportions: 50-70 parts of fiber raw materials, 14-23 parts of fillers, 3-7 parts of flow aids, 20-25 parts of additives, and 8-15 parts of polyurethane. The non-woven fabric with high tear resistance provided by the present invention improves the formula of traditional non-woven fabrics, and the fiber raw materials, fillers and additives in the formula play a synergistic role, which effectively improves the tear resistance of the non-woven fabric; modified chitosan is added to the formula, which effectively improves the antibacterial properties of the non-woven fabric. In addition, the non-woven fabric with high tear resistance provided by the present invention has a simple formula, and the preparation method is easy to operate, which effectively saves the production cost of the non-woven fabric, and is conducive to industrial production.

The present application relates to the technical field of toothpaste, and specifically discloses a toothpaste that promotes the health of oral mucosa, the toothpaste comprising the effective ingredient wild kiwifruit juice extract; the wild kiwifruit juice extract is obtained by mixing wild kiwifruit juice, tea extract and fructose syrup; and also comprises raw materials: moisturizer, abrasive, flavoring agent, foaming agent, thickener, strengthening ingredient, sweetener, solvent; the present application has a simple formula and a strict proportion, and by adding the effective ingredient wild kiwifruit juice extract into the formula, the antioxidants, vitamin C and other bioactive ingredients contained in the wild kiwifruit juice extract have significant anti-inflammatory and antioxidant effects, help relieve gingival swelling and pain, reduce oral inflammation, and promote the repair and health of oral mucosa; the toothpaste prepared by the present application can effectively clean teeth, remove dental plaque and stains, reduce oral bacteria, enhance tooth corrosion resistance, and freshen breath while promoting oral health.

The invention provides DLP 3D printing slurry, a porous scaffold and a preparation method and application of the DLP 3D printing slurry and the porous scaffold, and the DLP 3D printing slurry is prepared from, by mass, 10%-70% of copper-containing bioactive glass, 26.7%-87% of photosensitive resin, 0.3%-1% of a photoinitiator and 2%-3% of a dispersing agent. The preparation method comprises the following steps: (1) uniformly mixing the photoinitiator, the photosensitive resin, the copper-containing bioactive glass and the dispersing agent to obtain a mixed solution; and (2) the mixed solution is subjected to vacuum centrifugal treatment, and the DLP 3D printing slurry is obtained. According to the invention, the quality and purity of the porous scaffold are improved, the expression of cell osteogenesis related genes can be promoted, and the osteogenesis promoting capability is improved.

The invention provides an electrolytic corrosion liquid and a display method of maraging steel original austenite grain boundaries, and relates to the technical field of physicochemical metallographic detection.The method comprises the steps that firstly, component design is conducted on the basis of a CALPHAD method, maraging steel is prepared through an injection molding method, and the original austenite grain boundaries are represented through electrolytic corrosion; the electrolytic corrosion liquid comprises the following components: 5-6 ml of absolute ethyl alcohol, 2-3 ml of concentrated nitric acid, 1.5-2.5 ml of hydrochloric acid, 2-2.5 ml of deionized water, 1-2 g of copper sulfate and 1-2 g of copper chloride, the electrolysis voltage is 8-10 V, the electrolysis current is 2-5 A / cm < 2 >, electrolysis is performed 2-4 times, and the electrolysis time is 8-12 s each time. According to the method, the grain boundary of the original austenite can be accurately and clearly observed by preparing the components of the corrosive liquid, so that the grain size of the austenite is further determined, and the method has important significance in counting the grain size of the austenite and efficiently and accurately obtaining experimental data.

The application provides a preparation method of a food-grade natural wax-based gel emulsion, and the method is as follows: food-grade natural wax, a surfactant and distilled water are heated and mixed, and then high-speed shearing, ultrasonic dispersion, cooling and standing are performed to obtain a food-grade natural wax-based particle dispersion liquid; then the food-grade natural wax-based particle dispersion liquid is mixed and stirred with a food-grade natural wax-based gelation inner oil phase, and then high-speed shearing, ultrasonic dispersion and cooling are performed to obtain the food-grade natural wax-based gel emulsion. The application also provides application of the food-grade natural wax-based gel emulsion prepared above in preparation of special food for people with difficulty in swallowing. The food-grade natural wax is used as the only core functional raw material, and its dual functions of stabilizing the oil-water interface as a solid particle and constructing a three-dimensional network structure as a gelling agent are fully played, the prepared gel emulsion has a semi-solid texture, is easy to spread and deform, has very high safety and practicability, and has a wide application prospect.

The invention discloses a modified fly ash ceramsite proppant and a preparation method thereof, and a combined proppant and a preparation method and application thereof, and relates to the technical field of shale oil and gas fracturing. The modified fly ash ceramsite proppant comprises the following components which are mixed and granulated: fly ash, bauxite, barite powder, a recycled molecular sieve, a recycled mesoporous material, optional calcite powder and optional bentonite. The environment-friendly propping agent disclosed by the invention solves the problems of high production cost and application cost of the fracturing propping agent taking aluminum-containing minerals as main raw materials, and takes the harmless treatment of recyclable resources and industrial wastes in the whole industrial chain of the petrochemical industry into consideration, and the industrial wastes of the downstream of the oil refining and chemical industry are applied to the upstream petroleum fracturing propping agent.

The invention discloses a biodegradable high water vapor barrier film and a preparation method thereof. The film comprises the following components in percentage by mass: 100wt% of biodegradable matrix resin and 1-20wt% of saturated fatty acid or monoglyceride thereof, the melting point of the saturated fatty acid or monoglyceride thereof is 50 DEG C or above, and the hydrophobic parameter calculation reference value is 5-15; the interior and the surface of the high water vapor barrier film comprise micro-nano flaky crystals formed by saturated fatty acid or monoglyceride of the saturated fatty acid. High-melting-point saturated fatty acid or monoglyceride of the saturated fatty acid directly acts on the degradable matrix resin and can be quickly crystallized on the surface and inside a resin film to form flaky crystals with micro-nano sizes, and the unique structure and morphology are combined with the hydrophobicity of the saturated fatty acid or monoglyceride of the saturated fatty acid matched with the matrix resin; meanwhile, adsorption and dissolution of water vapor on the surface and diffusion of the water vapor in the interior are reduced, and the water vapor barrier property of the film can be remarkably improved under the combined action of the two.