57results about How to "Extensive preparation process" patented technology

The invention discloses a water-based adhesive used for the bonding between rubber and metal; according to the parts by weight, the adhesive comprises 60-90 parts of soft monomer, 30-60 parts of hard monomer, 2-8 parts of functional monomer, 3-10 parts of emulsifier, 0.4-0.8 part of initiator, 0.6-1.0 part of pH buffer, 100 parts of deionized water or distilled water, 0.05-0.1 part of anticorrosive bactericide, and 1.4-1.6 parts of pH regulator. The invention also discloses a preparation method for preparing the water-based adhesive. The adhesive can replace the existing solvent-typed adhesive, effectively realizes the bonding between the rubber and the metal, has no poison, no combustion and no explosion, is safe and protects the environment. The preparation method which applies the seed latex polymerization has simple preparation process and high production efficiency and is beneficial for the industrial production.

A nano-class deodoring agent for cleaning air is prepared from TiO2 nanoparticles, tourmalinite nanoparticles, muscovite nanoparticles, sodium silicate, sodium benzoate, sodium chloride, polyacrylamide, hydroxyethylene cellulose and propanetriol through ball grinding and baking. Its advantages are high effect to remove benzene, ammonia and formaldehyde by 60-80%, and short time (24hr).

The invention discloses a nano catalytic viscosity reducer for thickened oil aqua-thermolysis and a preparation method thereof. The catalytic viscosity reducer is prepared from following materials in parts by weight: 1 to 50 parts of metal salt, 10 to 200 parts of solvent, 5 to 150 parts of alcohol, 5 to 150 parts of reducing agent, 100 to 500 parts of alkali solution, 50 to 300 parts of sulfonic acid, and 100 parts of distilled water through reduction reactions, wherein the sizes of the viscosity reducer are in the range of 1 to 10 nm. The nano catalytic viscosity reducer for thickened oil aqua-thermolysis has the characteristics of strong universality, and good viscosity reducing effect, and is capable of catalyzing thickened oil to carry out catalytic cracking reactions in a lower temperature (not larger than 200 DEG C). The viscosity of thickened oil is largely reduced after the reactions, and the viscosity reducing rate reaches 80% or more.

The invention provides a hematite anti-flotation collector as well as a preparation method and a use method thereof and relates to a low-temperature hematite anti-flotation desilication anionic collector especially suitable for quality improvement and impurity removal of mid-and-low grade iron ore concentrates as well as a preparation method and a use method of the hematite anti-flotation collector. The collector is characterized by being prepared by mixing hydroxy fatty acid, sulfonated fatty acid and unsaturated fatty acid, adding a foaming agent and performing saponification. The preparation process comprises the following steps: uniformly mixing the hydroxy fatty acid, sulfonated fatty acid and unsaturated fatty acid, then adding the foaming agent and finally performing saponification. The collector has the characteristics of wide raw material source, simple preparation process, good solubility property, good selectivity, less dosage and environmental friendliness, is applicable to low-temperature (15-20 DEG C) anti-flotation desilication of mid-and-low grade hematite, can be used for effectively reducing the heating energy consumption, and is obvious in economic benefits.

The invention discloses a shotcrete springback inhibitor and a using method thereof. The springback inhibitor is prepared by mixing the following raw materials: 50%-60% of a composite admixture, 15%-30% of nano calcium silicate, 15%-25% of an efficient water reducing agent, 1%-5% of redispersible latex powder, 1%-5% of a water retaining agent, 1%-5% of a thickening agent and 0.5%-1.0% of an exciting agent. When shotcrete is prepared, cement, sand, stone and the springback inhibitor are added into a stirrer together to be stirred; the mixing amount of the springback inhibitor is 3-8% of the total consumption of the cementing material. According to the shotcrete springback inhibitor and the using method thereof of the invention, under the condition that a water reducing agent is not added and the mixing amount of an accelerator is reduced, the springback rate of the shotcrete is greatly reduced, the working performance of the shotcrete is improved, meanwhile, the mechanical property andthe durability are improved. The method is particularly suitable for preparing the high-performance shotcrete. The one-time spraying thickness of the shotcrete can reach 50 cm or above, the early strength of the shotcrete is remarkably improved, the adverse effects of the accelerator on the strength, durability and the like of the shotcrete are avoided, the construction efficiency is improved, andthe engineering cost is saved.

The invention discloses a yeast microcapsule of globe artichoke polyphenol and a preparation method of the yeast microcapsule. A yeast microcapsule product is prepared from freeze-dried powder of globe artichoke serving as a core material and yeast cells serving as an embedding wall material through water bath constant-temperature oscillation, centrifuging and freeze-drying, wherein the freeze-dried powder of globe artichoke is obtained through extraction, purification and freeze-drying. Yeast cells are rich in nutrition self, and due to microencapsulation of the yeast cells, the antioxidant activity of polyphenol is maintained, and furthermore nutrient substances of yeast are supplied, so that the yeast microcapsule has the characteristics of slow medicine release, high bioavailability, relatively simple preparation process and is suitable for industrial large-scale production, and meanwhile ideas and directions are provided for further application of polyphenol.

The invention belongs to the technical field of lightning protection and grounding for electric power, railways, telecommunications, factories and mines, high-rise buildings and the like, and particularly relates to a graphite composite resistance-reduction cloth production process. The graphite composite resistance-reduction cloth production process comprises the following steps that expansible graphite with the carbon content being 99.5 percent or more is selected and high-temperature expansion is conducted at 1000 DEG C, so that graphite worms are obtained; the surface of special fiber is evenly immersed with an adhesive; the special fiber is evenly laid between an upper layer of electricity-conducting low-resistance graphite coiled material and a lower layer of electricity-conducting low-resistance graphite coiled material; the composite electricity-conducting low-resistance graphite coiled materials are cut into electricity-conducting low-resistance graphite belts; the electricity-conducting low-resistance graphite belts are made into electricity-conducting low-resistance graphite yarn through a twisting machine in a unidirectional twisting mode; the graphite composite resistance-reduction cloth is woven by a braiding machine through the electricity-conducting low-resistance graphite yarn formed in a twisted mode. The graphite composite resistance-reduction cloth production process is simple, controllable in production cost and capable of bringing convenience to large-scale production, application and popularization.

The invention relates to a high-strength material prepared from waste polyester bottle flakes and polypropylene film waste and specially used for woven bags and a method of the material, and belongs to the technical field of waste plastic treatment and resource utilization. The waste polyester bottle flakes (PET) and the polypropylene film waste (PP) are smashed into materials with similar sizes, the materials are cleaned, dried and mixed to be uniform, and PET and PP mixed waste materials are prepared; 100 parts of the prepared PET and PP mixed waste materials are blended with 5-10 parts of chlorinated polyethylene, 0.5-1 part of maleic anhydride, 0.5-1 part of silane coupling agent, 3-5 parts of SBS, 1-3 parts of paraffin oil and 0.5 part of ferrous sulfate to be extruded and pelletized, and the material special for the woven bags is obtained. The tensile strength of the prepared material special for the woven bags exceeds that of a material special for PP-T30S grade drawing-class woven bags; due to the fact that the raw material formula comprises ferrous sulfate which can be combined with odors of the waste polyester bottle flakes and the polypropylene film waste, the odors emitted by waste plastic during processing are effectively reduced.

The invention relates to a composite fruit beer and its making method. The composite fruit beer is through the steps of preparation of a composite juice, rice gelatinization treatment, malt pretreatment, wort preparation, hop addition, brewer's dried yeast activation, fermentation, filtration and packing with Calophyllum inophyllum L, red date, rice and wort as the main raw materials. The composite fruit beer makes up for the disadvantages of single beer beverages based on human physiological needs according to the complementary principle of nutrition, contains rich and comprehensive nutrition, is clear, transparent and yellow or golden yellow, has the characteristics of clear white, fine and persistent foam, pureness, coordination, refreshing and pure mouthfeel, little fragrance of hop and malt, special aroma of the Calophyllum inophyllum L and red date, abundant taste, and reservation of the nutrition values and health functions of Calophyllum inophyllum L and red date, and is a novel composite fruit beer beverage with unique flavor and charm.

The invention discloses samarium-containing rare earth polishing powder. According to the molar ratio, the samarium-containing rare earth polishing powder comprises the following components that Sm2O3 / TREO is equal to 1.4*10<-4>-0.014, La2O3 / TREO is equal to 0.06-0.12, Pr7O11 / TREO is equal to 8.6*10<-6>-0.0047, Nd2O3 / TREO is equal to 2.97*10<-5>-0.0074, and the balance of CeO2 / TREO is equal to 0.27-0.46. The rare earth polishing powder is obtained by the following steps: by adopting the samarium-containing rare earth salt solution as a main material, adding a fluorine-containing precipitant solution into the material, controlling the fluorine content in a product by regulating the concentration of fluorine ions in a precipitant, and then washing, drying, calcining, crushing and grading andthe like. Different from other production processes, the process is mainly characterized by introducing samarium element into the rare earth material and introducing fluorine element into the precipitant, and has the advantages of simple preparation process and wide material source and the like. The prepared rare earth polishing powder prepared is uniform in grain, obvious in edge and corner andfast in cutting speed.

The invention provides a restoration shampoo containing a natural surfactant and a preparation method thereof. The restoration shampoo is prepared from the following components in percentage by weight: 6.0 to 40.0% of surfactant, 2.0 to 8.0% of yak bone small molecule peptide, 0.01 to 2.0% of thickening agent, 0.5 to 3.0% of pearling agent, 0.01 to 0.5% of preservative, 0.05 to 2.0% of moisturizing agent, 1.0 to 20.0% of plant extract, 0.1 to 3.0% of essence and the balance of water, wherein the surfactant contains 0.5 to 80wt% of natural surface active component. The restoration shampoo has the advantages that by adding the natural surfactant, the oil control effect is realized, the mild and non-irritation effects are realized; the anti-inflammatory effect is realized, and the like.

The invention relates to an agricultural culture medium for growing tomatoes and a preparation method thereof. The agricultural culture medium is prepared from the following raw materials in parts byweight: 80-100 parts of plant carbide, 70-90 parts of landscaping wastes, 60-80 parts of urban domestic sludge, 25-35 parts of straw powder, 20-30 parts of distiller grains, 15-25 parts of worm cast,10-20 parts of livestock and poultry manures, 6-10 parts of waste tea residue, 6-10 parts of polyacrylamide super absorbent resin, 3-8 parts of plant ash, and 15-25 parts of nutrient. The culture medium prepared through the method meets the growing requirements of grape in gas permeability of soil, nutrition slow release capability, PH, and nutrition content, and provides nutrients for tomato growing. The culture medium uses raw materials that are easy to obtain, the preparation method is simple and is easy to operate, and the culture medium is suitable for industrial production, is convenientto use, has obvious effect, can prevent diseases and increase yield, can balance plant nutrition, and greatly improves the tomato yield and quality.

The present invention relates to an application of pickle juice in preparing for a medicine preventing and remedying the diarrhea of dog and a feed additive, which is characterized in that the pickle juice is obtained from the curing process of pickle; in the process of making the pickle, various vegetables are fermented by pickle lactobacillus; the pickle is all cured under 1 to 40 DEG C for 5 to 60 days since being prepared or till that the pH value reaches 3.0; the prepared pickle juice, pickle juice condensed liquid, pickle juice dry substance or a mixture are respectively applied to the medicine preventing and remedying the diarrhea in dog and the feed additive. The pickle lactobacillus in the pickle juice is one of leuconostoc lactobacillus, milk globule lactobacillus, lactobacilli lactobacillus and bifidobacterium lactobacillus. The pickle juice of the present invention remedies the diarrhea of dog effectively, which is more particularly used for the symptomatic treatment of secondary bacterial infection caused by the dog virosis, relieves the symptom of the diarrhea in dog, improves immunity obviously, retards stress reaction and improves and maintains gastrointestinal tract flora balance. The application of the pickle juice has good curative effect, low cost, no drug resistance, no residual drug and no toxic and side effect, which is a green environment-friendly natural active substance.

The invention discloses a blueberry plantation nutrient soil. The blueberry plantation nutrient soil comprises, by weight, 40-50 parts of garden soil, 8-16 parts of grass peat ash, 4-10 parts of , 2-5 parts of purple sandy shale soil, 2-5 parts of disodium hydrogen phosphate, 5-9 parts of calcium hydrogen phosphate, 8-14 parts of calcium nitrate, 4-8 parts of tea residues, 2-5 parts of lanceleaf magnoliavine fruit, 3-6 parts of Periploca sepium, 2-8 parts of Root of Thunberg Grape, 2-10 parts of Heterostemma alatum Wight and 3-8 parts of Herba Siegesbeckiae. The invention also discloses a production method of the nutrient soil. The permeability, the nutrition slow release capability, the pH value and the nutrition content of the nutrient soil meet blueberry growth requirements.

The invention relates to a preparation method of a solid lactic acid bacteria high-activity bacterial agent for raising. The preparation processes of the lactic acid bacteria active bacterial agent comprise fermentation of a probiotic lactic acid bacteria living bacteria agent, a basic formula of a lactic acid bacteria solid bacterial agent, preparation of the formula and a powder granulation process. The preparation method of the solid lactic acid bacteria high-activity bacterial agent for raising has the advantages that through the addition of various bioactive components in the fermentationprocess of the lactic acid bacteria living bacteria agent and optimization of the basic formula and protection formula, the probiotic function of the bacterial agent is improved while the high survival rate of lactic acid bacteria is ensured; the acid resistance and bile salt tolerance of the lactic acid bacteria in the prepared lactic acid bacteria active bacterial agent are improved, the survival rate of the lactic acid bacteria in the simulated animal gastrointestinal fluid is high, and the lactic acid bacteria active bacterial agent has a good probiotic healthcare function.

The invention relates to blue light conversion agent s-triazine derivatives for an agricultural film and their preparation method and use method, and belongs to the technical field of fluorescent materials, organic electroluminescence materials and agricultural film light-conversion materials. The blue light conversion agent s-triazine derivatives comprise 2,4,6-tri(1-naphthylethyl)s-triazine (TNNA-1) having a molecular formula of C39H27N3 and a three-branch structure, and 2,4,6-tri(2-naphthylethyl)s-triazine (TNNB-1) having a molecular formula of C39H27N3 and a three-branch structure. The preparation method has simple processes and adopts traditional easily-acquired chemical materials. The blue light conversion agent s-triazine derivatives as organic light-emitting materials having s-triazine derivative structures have high thermostability, high glass-transition temperatures and high launching light intensity. In agricultural film preparation, the blue light conversion agent s-triazine derivatives are uniformly distributed in the agricultural film so that the agricultural film has the bright and flat surface and controllable thickness. The blue light conversion agent s-triazine derivatives have a wide application range, can convert ultraviolet light into visible blue light, adopt easily acquired raw materials, have low prices, can be prepared by the simple preparation method and are suitable for large-scale industrial production.

The invention discloses anti-inflammation skin protection liquid soap, a method for preparing the same and application of the anti-inflammation skin protection liquid soap. The anti-inflammation skinprotection liquid soap comprises, by weight, 15-30 parts of alkyl glycoside, 8-12 parts of sodium dodecyl sulfate, 1-3 parts of acidic PH (potential of hydrogen) value regulators, 0.5-1.5 parts of deionized water, 20-40 parts of radix arnebiae seu lithospermi oil, 10-20 parts of tea bran, 2-10 parts of flos lonicerae, 3-10 parts of lemons, 5-10 parts of herba menthae and 2-8 parts of herba plantaginis. The method includes mixing and stirring the alkyl glycoside and the sodium dodecyl sulfate with each other to obtain mixtures; adding the acidic PH value regulators into the mixtures; ageing mixed liquid; smashing the tea bran; soaking tea bran powder; washing, drying and smashing the flos lonicerae, the lemons, the herba menthae and the herba plantaginis; adding mixed powder into distilledwater and stirring and precipitating the mixed powder; acquiring supernatant liquor and mixing tea bran water and the supernatant liquor with each other; dropwise adding the radix arnebiae seu lithospermi oil into mixed liquid to obtain the anti-inflammation skin protection liquid soap. The anti-inflammation skin protection liquid soap, the method and the application have the advantages that the anti-inflammation skin protection liquid soap prepared by the aid of the method is non-irritant and is high in sterilization capacity, skin can be effectively protected by the anti-inflammation skin protection liquid soap, redness inflammation can be quickly treated by the aid of the anti-inflammation skin protection liquid soap, obvious treatment effects can be realized by the anti-inflammation skin protection liquid soap, and effects of quickly and effectively cleaning two hands of a user can be realized by the anti-inflammation skin protection liquid soap.

The invention discloses a traditional Chinese medicine composition for preventing and treating duck virus hepatitis, and belongs to the field of preparation of veterinary drug. The traditional Chinese medicine composition is prepared from the following traditional Chinese medicinal components in parts by weight: 5 to 6 parts of humifuse euphorbia herb, 5 to 6 parts of lithospermum, 1 to 3 parts of cortex phellodendri, 1 to 3 parts of herba artemisiae scopariae, 1 to 3 parts of bupleurum, 1 to 3 parts of mints, 1 to 3 parts of hawthorns, 1 to 3 parts of honeysuckles, 1 to 3 parts of liquorice and poplar bark lipid. The traditional Chinese medicine composition is prepared by pure traditional Chinese herbs which are wide in raw material sources, is low in cost, high in curing rate and free of medicine residues, and does not have toxic and side effects; particularly the excessive decocting extraction keeps the conventional traditional Chinese medicine technology, so that the traditional Chinese medicine composition is easier to absorb. The traditional Chinese medicine composition has the effects of clearing away toxicity and heat, stopping bleeding and dysentery, warming stomach and intestine and adjusting the body function, can effectively treat the duck virus hepatitis, and is short in recovery period and convenient to use. Clinical test shows that the curing rate is up to over 85 percent, and a unique treating effect is achieved.

The invention discloses a solid-state polyelectrolyte for a lithium battery and a preparation method thereof and belongs to the field of lithium ion battery electrolytes. The method comprises the following steps: weighing a polyether-polyamide block copolymer or purchased commercial Pebax, adding the polyether-polyamide block copolymer or the purchased commercial Pebax into an organic solvent, stirring the polyether-polyamide block copolymer or the purchased commercial Pebax under the heating condition of 30-80 DEG C until the polyether-polyamide block copolymer or the purchased commercial Pebax is completely dissolved to obtain a solution with the concentration of 0.12 g / ml-0. 25g / ml, adding a lithium salt accounting for 5-60% of a polymer matrix into the solution, continuously stirring the solution until the lithium salt and the polymer matrix are fully mixed, defoaming the mixed solution, and obtaining a polyelectrolyte membrane casting solution; and uniformly blade-coating the polyelectrolyte membrane casting solution on a polyfluortetraethylene plate by using a scraper, performing standing at room temperature, and carrying out vacuum drying at 30-80 DEG C for 6-24 hours. As a block structure formed by polyether and polyamide can destroy regularity of polymer chain segments, polymer crystallization is effectively inhibited, and rapid transmission of Li<+> among chains is promoted, so that room-temperature lithium ion conductivity of the polyelectrolyte is improved.

The invention discloses cultivating soil for cultivating blueberries and a preparation method and application of the soil. The cultivating soil is prepared from, by weight, 32-40 parts of garden soil, 18-26 parts of radix pandani tectorii, 3-10 parts of disodium hydrogen phosphate, 12-20 parts of ammonium nitrate and 8-16 parts of wheat bran. The preparation method comprises the steps that radix pandani tectorii is smashed, sieved, soaked with table vinegar for 3 h to 5 h and subjected to heating stirring treatment at 70 DEG C to 80 DEG C, the wheat bran and disodium hydrogen phosphate are added, heating stirring treatment is conducted, and a mixed material is obtained; the garden soil, ammonium nitrate and the mixed material are mixed to be uniform, and the cultivating soil is obtained. After the cultivating soil is prepared for half a month, the pH value ranges from 4.8 to 5.2, the conductivity rate ranges from 1,500 ms / cm to 1,600 ms / cm, the cultivating soil can meet the blueberry growth requirements on the air permeability, a nutrient slow-release capacity, the pH value and the nutrient content of the soil, and the growth performance of the blueberries is good when the cultivating soil is used for cultivating the blueberries. Meanwhile, use is convenient, the effect is obvious, and the cultivating soil can prevent diseases, increase the yield and coordinate plant nutrition balance, greatly increase the yield of the blueberries and greatly improve the quality.

The invention relates to a high-strength injection molding material prepared from waste polyester bottle flakes and waste polypropylene injection molding materials and a preparation method thereof, and belongs to the technical field of treatment and resource utilization of waste plastics. The method includes: firstly, crushing the waste polyester bottle flakes (PET) and the waste polypropylene injection molding materials (PP) into materials similar in size, washing and drying prior to uniform mixing to obtain the PET / PP mixed waste; secondly, taking 100 parts of the prepared PET / PP mixed waste, 5-10 parts of chlorinated polyethylene, 0.5-1 part of maleic anhydride, 0.5-1 part of silane coupling agent, 1-3 parts of paroline oil and 0.5 part of ferrous sulfate for blending prior to extruding and granulating to prepare the high-strength injection molding material.The prepared injection molding material is superior to brand-new PP-V30G injection molding material in impact strength, and undesirable odor emitted from the waste plastics are effectively reduced and lowered during processing as the ferrous sulfate which can be in chemical combination with odor of the waste polyester bottle flakes and the polypropylene film waste is contained in the raw material formula.

The invention relates to a special toughening function regulator for a polyethylene filler flat filament, a special woven bag material prepared by adopting the special toughening function regulator and a preparation method of the special woven bag material, belonging to the technical field of treatment and resource utilization of waste plastic. The preparation method of the special woven bag material comprises the following steps of firstly, crushing waste polyester (PET) bottle flakes and polyethylene (PE) film wastes into materials with similar sizes, cleaning, drying and then uniformly mixing to obtain PET / PE mixed wastes; secondly, taking 100 parts of prepared PET / PE mixed wastes to be blended with 5 to 10 parts of chlorinated polyethylene, 0.5 to 1 part of maleic anhydride, 0.5 to 1 part of silane coupling agent, 3 to 5 parts of SBS (Styrene Butadiene Styrene Block Copolymer), 1 to 3 parts of liquid paraffin and 0.5 part of ferrous sulfate, extruding and granulating to obtain the special woven bag material. The tensile strength of the special woven bag material prepared by the preparation method disclosed by the invention exceeds that of a PP-T30S grade special woven bag material; in addition, a raw material formula contains the ferrous sulfate, and the ferrous sulfate can be odorously and chemically synthesized with the waste polyester bottle flakes and the polyethylene film wastes, so that odor given off by the waste plastic in the processing process can be effectively reduced.

The invention relates to culture soil suitable for grape planting and a preparation method thereof. The cultivated soil includes the following raw materials in parts by weight: 40-50 parts of vegetable garden soil, 20-25 parts of garden greening wastes, 20-25 parts of urban living sludge, 15-20 parts of earthworm dung, 10-15 parts of straw powder, 8-12 parts of distillers' grains, 6-10 parts of waste tea residues, 6-10 parts of livestock and poultry manure, 6-10 parts of an adsorbent, 3-7 parts of plant ash, 2-5 parts of ammonium dihydrogen phosphate, 2-5 parts of ammonium sulfate, 1-3 parts of calcium hydrogen phosphate, 1-2 parts of calcium superphosphate, 1-2 parts of potassium sulfate, 0.5-1.5 parts of ferrous sulfate and 0.5-1.5 parts of copper sulfate. With adopting of the cultivation soil suitable for grape planting and the preparation method thereof, the requirements of grape growth can be met, the grape growth performance is good, the effect is obvious, and the cultivation soil can prevent disease, increase yield, coordinate the balance of plant nutrition, greatly increase the grape yield and improve the quality.

The invention discloses deodorizing antibacterial gel and a preparation method and application thereof.The deodorizing antibacterial gel is prepared from, by weight, 38-50 parts of polyacrylamide, 8-16 parts of cassia twig, 22-30 parts of kaolin and 15-25 parts of Campanumoea lancifolia root.The preparation method includes: smashing and sieving the Campanumoea lancifolia root, disposing prepared Campanumoea lancifolia root powder in alcohol for soaking, seeping, filtering to obtain supernate, and depressurizing for concentration to obtain Campanumoea lancifolia root concentrate; smashing and sieving polyacrylamide, mixing with the Campanumoea lancifolia root concentrate, adding cyclohexane, and thermally treating to dryness to obtain pre-treated polyacrylamide; smashing and sieving the cassia twig and kaolin, adding acetic acid for thermal treating, adding deionized water for ultrasonic treatment, mixing with pre-treated polyacrylamide, and performing ultrasonic treatment to obtain the deodorizing antibacterial gel.The deodorizing antibacterial gel is used in manure collection bags, has good deodorizing effect and high solidifying degree on manure and is convenient in treatment and sterilization.

The invention discloses a preparation method of tuna protein peptide. The method comprises the following steps of 1, firstly, selecting fresh tuna skin as raw materials, then, mixing the tuna skin andwater according to the ratio of 1:30, then, heating the mixture in a closed container to reach the boiling point, keeping the water temperature to 100 DEG C all the time, and in the process, obtaining a mixed solution after 2-3 h; 2, cooling the obtained mixed solution to 40-65 DEG C, then, adding an enzyme into the mixed solution, performing standing for 1-2 h, and then performing sufficient stirring; 3, the preparation method of the tuna protein peptide is high in yield, good in antibacterial activity and good in beautifying and skin moisturizing effect; meanwhile, the adopted raw materialscontain no hazard substances, no environment contamination is caused, the materials are wide in source, the preparation technology is simple, the product has the effects of maintaining beauty, keeping young, promoting cell growth and resisting aging, and the great important effect is brought into play for vital activity.