303 results about "Ethyl cellulose" patented technology

The invention discloses a preparation method of an ethyl cellulose and isocyanate cross-linked coated urea slow-release fertilizer, and relates to a preparation method of a urea slow-release fertilizer. The invention aims to solve the problems that the existing nitrogen fertilizer is low in utilization rate and easy to absorb moisture and cake, a polyurethane coating material is non-degradable, and pure ethyl cellulose is insufficient in mechanical strength and limited in water resistance and is not beneficial to being used as a coating matrix of the fertilizer. The method comprises the following steps: 1, preparing an ethyl cellulose cross-linked isocyanate enveloping solution; and 2, preparing the ethyl cellulose and isocyanate cross-linked coated urea slow-release fertilizer. According to the preparation method, etherified derivative ethyl cellulose of cellulose is taken as a raw material, and the defects that a pure ethyl cellulose membrane is insufficient in mechanical strength, limited in water resistance and low in nutrient separation control precision are overcome by utilizing isocyanate crosslinking modification. The prepared slow-release fertilizer has the advantages of being simple in process, low in cost, environmentally friendly, degradable in matrix, capable of effectively preventing urea from absorbing moisture and caking and the like, and is suitable for large-scale preparation and used in agricultural production.

The invention discloses an efficient anticorrosive coating and a preparation method thereof, and relates to the technical field of coatings. The high-efficiency anticorrosive paint is prepared from a crosslinked membrane modified phytic acid loaded aluminum MCM-41 mesoporous silica composite synergistic filler, a polyurethane / epoxy resin composite emulsion system, titanium dioxide, a BYK-190 dispersing agent, a BYK-021 defoaming agent, a BYK-358N flatting agent, a BYK-425 thickening agent, hydroxyethyl cellulose and deionized water. A cross-linked membrane modified phytic acid loaded aluminum MCM-41 mesoporous silica composite synergistic filler is uniformly dispersed and deeply embedded into a polyurethane / epoxy resin composite emulsion system, countless chemical anchor points are established between the filler and a base material, and the interface bonding property with a resin system is also enhanced, so that the adhesive force of the coating is greatly improved, and meanwhile, the coating has the advantages that the service life of the coating is prolonged, and the service life of the coating is prolonged. And an active and passive three-dimensional protection system formed by the two is used for remarkably improving the corrosion resistance of the coating in the action modes of intelligent response, active repair and physical barrier.

The invention discloses an environment-friendly bio-based coated controlled-release fertilizer with multiple enzymolysis targets and a preparation method of the environment-friendly bio-based coated controlled-release fertilizer, and belongs to the technical field of controlled-release fertilizer production. The environment-friendly bio-based coated controlled-release fertilizer comprises a fertilizer core, an enzyme trigger type internal response layer and a pH sensitive trigger type outer layer, the enzyme trigger type internal response layer is prepared from cationic hydroxyethyl cellulose polyester polyol, an enzyme active site targeting modifier and a degradation accelerator; the pH sensitive trigger type outer layer is prepared from cationic hydroxyethyl cellulose polyester polyol and a covalent self-adaptive network modifier; the outer coating of the fertilizer disclosed by the invention can be degraded under the momentary excitation that the pH value in the coating is reduced after nutrients are released, and can promote degradation microorganisms in soil to be adsorbed to the enzyme-triggered internal response layer, so that the degradation of the internal coating is accelerated. The pH sensitive trigger type outer layer has a promoting effect on the enzyme trigger type inner response layer, and the promoting effect is enhanced by adding the degradation accelerator.

The invention discloses a compound rumen bypass guanidinoacetic acid additive as well as a preparation method and application thereof, and belongs to the technical field of animal feed additives. The compound rumen bypass guanidinoacetic acid additive provided by the invention is prepared from the following components in parts by mass: 40 to 60 parts of guanidinoacetic acid, 0.1 to 0.5 part of selenium yeast, 5 to 10 parts of nicotinamide, 5 to 12 parts of DL-methionine, 0.01 to 0.05 part of vitamin B12, 1 to 3 parts of compound probiotics, 3 to 5 parts of hydroxypropyl methyl cellulose, 1 to 2 parts of ethyl cellulose, 15 to 25 parts of hydrogenated palm oil and 3 to 5 parts of glyceryl monostearate. The compound probiotics comprise bacillus subtilis and saccharomyces cerevisiae. The compound additive provided by the invention can significantly improve the daily gain of ruminants and reduce the feed-gain ratio, and meanwhile, due to the improvement of the energy utilization efficiency and the enhancement of the antioxidant ability, the immunity of animals is improved, the morbidity is reduced, and the meat quality is improved.

The invention discloses a double-layer microcapsule granule product for soothing nerves and helping sleep and a preparation method thereof, and relates to the technical field of traditional Chinese medicines. The double-layer micro-capsule granule product comprises the following raw materials: a double-layer micro-capsule coating layer and a double-layer micro-capsule granule, the double-layer micro-capsule coating layer comprises the following components: sodium alginate-chitosan and ethyl cellulose; the double-layer micro-capsule granules comprise the following raw materials in parts by weight: 150-200 parts of litsea coreana, 250-300 parts of gastrodia elata and 100-150 parts of American ginseng. According to the physicochemical characteristics of different traditional Chinese medicine effective components, corresponding extraction modes are selected in a targeted manner, and the stability of the medicine is improved; the extracted effective components are wrapped by double-layer wrapping materials, so that the sensory feeling of the traditional Chinese medicine is improved, and the palatability of the medicine and the taking compliance of a patient are improved.

The invention relates to the field of biological environmental protection, in particular to a heterotrophic nitrification immobilized engineering bacterium for efficient denitrification and a preparation method and application thereof.According to the heterotrophic nitrification immobilized engineering bacterium for efficient denitrification and the preparation method and application of the heterotrophic nitrification immobilized engineering bacterium, polyethylene glycol-glucan two-aqueous-phase concentration and trehalose protection liquid are adopted for synergistic effect, the bottleneck of cell damage caused by a traditional flocculation method can be avoided, trehalose molecules can wrap bacterial cells, and the bacterial cells can be effectively degraded; the immobilized particles can resist osmotic pressure impact and pollutant invasion, the survival rate of thalli is higher than 95%, so that the immobilized particles always keep ultrahigh denitrifying enzyme activity in various sewage environments, honeycomb-shaped pores are formed in an ethyl cellulose matrix, a microenvironment with a high specific surface area is provided for thalli attachment, and the built-in nano zeolite continuously and slowly releases Cu < 2 + > and Zn < 2 + > trace elements, so that the immobilized particles can be recycled. A thallus metabolism enzyme system is synergistically activated, and the denitrification pathway function is enhanced; the chitosan-polydopamine outer coating layer strongly captures the nitrogen-containing pollutants, so that the removal efficiency of the nitrogen-containing pollutants is improved; through triple protection, the density of unit granular bacteria is up to 109 cells / cm, the service life is prolonged, and the denitrification performance is improved by more than 40%.

The application relates to the technical field of cough-relieving medicines, and discloses a high-efficiency cough-relieving loquat particle composition which is composed of the following components in parts by weight: loquat leaf extract 30-40 parts; white front extract 10-15 parts; platycodon grandiflorum extract 6-10 parts; white mulberry bark extract 18-25 parts; stemona sessiliflora extract 7-10 parts; menthol 0.1-0.5 part; polyethylene glycol 2-5 parts; mannitol 8-12 parts; ethyl cellulose 3-6 parts; hydroxypropyl methyl cellulose 1-3 parts; phosphatidylcholine 1-3 parts; polysorbate 80 1-3 parts; cross-linked sodium carboxymethyl cellulose 4-6 parts; and sucrose 40-60 parts. The double dispersion system combining the immediate-release component and the sustained-release component is adopted, the solubility and the initial release speed of the traditional Chinese medicine extract are remarkably improved through the addition of polyethylene glycol and mannitol, and the technical effect that the drug effect appearing time is remarkably shortened is achieved. Compared with the technical scheme relying on only a single release mode in the prior art, the deficiency that the drug effect is slow and the symptoms of the patient cannot be timely relieved is solved.

The application discloses a preparation method of a low-TCR low-cost ceramic heating tube, and comprises the following steps: (1) preparing an organic carrier: 60 parts by weight of terpineol, 20 parts by weight of ethyl cellulose, 10 parts by weight of a binder and 10 parts by weight of diethylene glycol acetate are placed into a magnetic stirrer and uniformly dissolved and mixed; (2) weighing metal powder: Mo: 50-70 parts by weight; Re: 20-30 parts by weight; Mn: 0-5 parts by weight; Cr: 10-15 parts by weight; by adopting Mo, Re, Mn and Cr in a specific ratio as the metal powder, the traditional mode of adopting metal ruthenium powder or a mixture of metal ruthenium powder and other common metal powder is replaced, the prices of Mo, Re, Mn and Cr are low, so that the preparation cost of the ceramic heating tube is effectively reduced, the purpose of low TCR is achieved, and the scale production is facilitated; meanwhile, the ceramic heating tube prepared by adopting the application has higher overall bending strength, and can better meet the use requirement.

The present invention provides a solid dispersion of compound 1 or a pharmaceutical salt thereof, comprising the compound 1 or the pharmaceutical salt thereof as an active ingredient and a carrier material, wherein the carrier material is selected from one, two, or more of polyvinylpyrrolidone (PVP), copovidone, polyvinylpyrrolidone-vinyl acetate copolymer, hydroxypropyl methylcellulose acetate succinate, polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer, hydroxypropyl methylcellulose, polyethylene glycol, and ethyl cellulose, enabling the drug to have good stability, dissolution, and therapeutic effects. The formulation of the present invention provides rapid drug release and can reduce the oral burden of large-dose tablets on menopausal patients, thereby improving treatment compliance and treatment efficiency.

This invention relates to the field of concrete technology, specifically to a self-healing concrete material, its preparation method, and its application. The self-healing concrete material is a core-shell structured microcapsule, comprising a core material and a wall material. The wall material wraps around the core material. The core material comprises the following raw materials in parts by weight: 4-6 parts β-cyclodextrin, 12-18 parts sepiolite powder, 5-10 parts shellac powder, 25-35 parts sulfoaluminate cement, 10-15 parts magnesium oxide, 12-16 parts sodium silicate aqueous solution, and 14-17 parts calcium carbonate. The wall material comprises the following raw materials in parts by weight: 20-30 parts polyvinyl alcohol, 20-30 parts ethyl cellulose, 15-25 parts bentonite, and 25-35 parts corn starch. The mass ratio of the core material to the wall material is 6-7:3-4. The core material of the self-healing concrete material provided by this invention, comprising β-cyclodextrin, sepiolite powder, and shellac powder, can improve the problems of slow repair speed and poor reinforcement effect of self-healing materials.

The invention discloses metronidazole particles, a preparation containing the metronidazole particles and a preparation method of the metronidazole particles. The metronidazole particle comprises a drug core and a coating layer, wherein the coating layer is coated on the outer surface of the drug core; the medicine core comprises metronidazole; the coating layer comprises a film-forming material, and the film-forming material comprises gastric-soluble acrylic resin and ethyl cellulose. The metronidazole granule has low dissolution rate in water and a medium with high pH (such as pH 6.8), especially the dissolution rate in 15 minutes is less than or equal to 10%, the dissolution rate at low pH (such as pH 1.2-4.5) is consistent with the dissolution rate of commercially available tablets, and the metronidazole granule is rapidly dissolved out.

The application discloses a functional probiotic microencapsulated intestinal shield system and a preparation method and application thereof. A core layer comprises four probiotics, i.e., lactobacillus acidophilus La-14, animal bifidobacterium Bb-12, lactobacillus rhamnosus GG and lactobacillus reuteri DSM 17938, and the weight ratio is 3:4:2:1, and the total viable bacterial count is greater than or equal to 10^10 CFU / g. An inner layer is a targeted release control layer, which is composed of ethyl cellulose, polylactic acid, chitosan and lactose, can swell in a pH 5.5 to 6.5 environment and can dissolve in a pH 6.8 to 7.2 environment. A middle layer is a buffer protection layer, which is composed of calcium carbonate, disodium hydrogen phosphate and sodium alginate, and can maintain the internal pH of the microcapsule at 4.5 to 5.5 in a gastric acid environment. An outer layer is an intelligent response protection layer, which is composed of konjac glucomannan, xanthan gum and gum arabic, and can form a protective film in a gastric acid environment with a pH less than 3.0 within 5 minutes. Through the synergistic protection of the four-layer microcapsule structure, the probiotics can achieve a high survival rate in the gastric acid environment of cats, and can be accurately released at specific positions in the intestinal tract, which is helpful to improve the intestinal health of cats.

The present application relates to the technical field of oil exploitation, in particular to a profile control water plugging agent, a preparation method and application thereof. The method comprises the following steps: (1) mixing a cellulose compound, acrylamide and water, then adding a crosslinking agent, and then adding an initiator to perform a polymerization reaction; (2) mixing the material obtained in the step (1) with a metal salt solution, and then performing solid-liquid separation and drying; wherein the cellulose compound is selected from one or more than two of carboxymethyl cellulose, carboxyethyl cellulose and polyanionic cellulose. The profile control water plugging agent is a hydrogel material with a unique double network structure, and has good stability and still maintains good strength under high temperature and high salt conditions.

The invention relates to the technical field of lithium ion batteries, and discloses a high-safety semi-solid lithium battery, which comprises a positive electrode, a negative electrode, a diaphragm and a semi-solid electrolyte, the electrolyte is prepared from trimethyl phosphate, lithium bis (fluorosulfonyl) imide, cyanoethyl cellulose, a cation competitive coordination agent and an optional interface regulator; the solvation structure is regulated and controlled by utilizing a cation competitive coordination mechanism, the activity of a free solvent is reduced, and the problem of poor compatibility of phosphate and a negative electrode is solved; based on thermal reversible physical crosslinking characteristics of cyanoethyl cellulose and cations, the problem of large contact impedance between solid phases and solid phase interfaces is solved by adopting a process of high-temperature low-viscosity liquid injection infiltration and room-temperature in-situ curing molding; meanwhile, uniform deposition of lithium is induced by virtue of an electrostatic shielding effect of multivalent cations, dendritic crystal growth is inhibited, the battery has intrinsic flame-retardant characteristic, interface stability and long cycle life, and the technical problem of a high-energy battery is solved.

The application discloses a waterproof makeup composition in the field of cosmetics and a preparation method thereof. The composition comprises a self-repairing organic silicon polyurethane elastomer, double-hydrophobic modified nano silicon dioxide, cyclopentasiloxane, red iron oxide, hydroxyethyl cellulose, polyglyceryl isostearate, sodium hyaluronate, phenoxyethanol, vitamin E acetate and deionized water. The preparation process comprises the following steps: dissolving the self-repairing organic silicon polyurethane elastomer in cyclopentasiloxane to form an oil phase; dissolving hydroxyethyl cellulose in water and then adding other components to form an aqueous phase; mixing and emulsifying the two phases, adding double-hydrophobic modified nano silicon dioxide and other components for grinding, and finally adjusting the pH value. The composition has excellent waterproof performance, long-lasting makeup effect and self-repairing function, and has good skin compatibility.

In this ethyl cellulose derivative, some of hydroxy groups of ethyl cellulose are substituted with one or more groups selected from an acetyl group, a propionyl group, and a butyryl group. A value obtained by dividing the Young's modulus MPa of the ethyl cellulose derivative by the specific surface area m2 / g is 50.0 or less.

The invention belongs to the technical field of biological medicine, and particularly relates to a ganoderma lucidum polysaccharide sustained-release liver protection preparation and a preparation method thereof.The preparation comprises a pellet, the pellet comprises a pellet core, a medicine layer, an inner sustained-release layer and an outer mucous membrane attachment enteric-coated composite layer, and the pellet core is coated with the medicine layer, the inner sustained-release layer and the outer mucous membrane attachment enteric-coated composite layer in sequence; the medicine layer contains high-purity ganoderma lucidum polysaccharide; the inner slow-release layer is composed of ethyl cellulose, triethyl citrate and polyethylene glycol 4000; the outer mucous membrane attachment enteric composite layer is formed by compounding chitosan and a pH sensitive polymer, preferably, an in-situ network structure is formed through calcium ion crosslinking, and the outer mucous membrane attachment enteric composite layer has the enteric function and the mucous membrane attachment function. The invention aims to solve the problems that the existing ganoderan preparation is too fast in release, large in blood concentration fluctuation and short in action time. Through the synergistic effect of the structures, the ganoderma lucidum polysaccharide sustained-release liver protection preparation is stable in stomach, targeted in intestinal tract release and retained in mucous membranes, the sustained-release effect of 12 h or above is achieved, and the bioavailability and the liver protection curative effect are remarkably improved.

The present application provides a composition for preparing an aerosol-generating substrate, the aerosol-generating substrate being prepared by an integral molding process, the composition comprising: a plant component; a smoke agent component; a binder component; a fat-soluble perfume component; and ethyl cellulose. The invention also provides an aerosol generating matrix prepared by using the composition provided by the invention. Aerosol-generating substrates prepared using the compositions of the present application have improved formability and perfume retention.

The invention provides an effervescent tablet containing active probiotics and a preparation method thereof, and relates to the technical field of food and health care product processing. The preparation method of the effervescent tablet containing the active probiotics comprises the following steps: (1) acid granulation: coating an acid material with hydroxypropyl methylcellulose, and mixing with an adhesive and PEG 6000 for granulation; (2) alkali granulation: coating an alkali material with ethyl cellulose, mixing the coated alkali material with microcrystalline cellulose and an adhesive for granulation, and mixing with PEG (Polyethylene Glycol) 6000; (3) mixing the probiotic mixture by adopting an equivalent incremental method; (4) pre-pressing 30-40 kN of the acid particles to obtain an acid layer; and then sequentially filling a probiotic mixture and alkali particles, and finally pressing under the pressure of 50-60kN. According to the effervescent tablet containing the active probiotics, a double-layer tabletting technology is adopted, the survival rate of viable probiotics in the effervescent tablet is increased, and the disintegration time limit is shortened; and uniform bubbles and clear solution in the effervescing process are ensured.

The application relates to a nano-silicon-carbon composite negative material containing nanofiber carbon and a preparation method thereof. High-temperature pitch powder and ethyl cellulose are dissolved in tetrahydrofuran; then nano-silicon powder is added into deionized water and ultrasonically dispersed; carboxymethyl cellulose sodium and graphite powder are added into the dispersion liquid, and ultrasonic stirring is conducted to uniformly mix the carboxymethyl cellulose sodium and the graphite powder, so as to obtain a water dispersion liquid; then the mother liquor containing the high-temperature pitch powder and the ethyl cellulose is injected into the water solution containing the uniformly mixed nano-silicon powder, the graphite powder and the carboxymethyl cellulose sodium, and high-speed stirring is continuously conducted during the injection process; finally, a homogeneous precursor is obtained through spray drying, and high-temperature carbonization is conducted after high-speed fusion. The material can effectively relieve the expansion of nano-particles, the conductivity is not affected by the volume expansion change, and the performance is excellent.

A patch composition for targeting herpes virus comprising the following ingredients: a patch base, trisodium phosphate, malic acid, sorbitol, sodium benzoate, cellulose gum, peppermint, sodium saccharin, naringin, wind wheel grass extract, xanthan gum, polyethylene glycol-8, calcium carbonate, hydroxyethyl cellulose, hydroxypropyl guar gum, sodium nitrate, hydrated silica, sodium lauryl sulfate, strontium chloride hexahydrate, tranexamic acid, two-faced needle extract, sodium monofluorophosphate, sea salt, potassium nitrate, sodium chloride, and purified water q.s.

This invention discloses a penicillin V potassium capsule and its preparation method. The preparation method includes: preparing modified polylactic acid glycolic acid copolymer microspheres; mixing penicillin V potassium micropowder with the modified polylactic acid glycolic acid copolymer microspheres, adding fumed silica and anhydrous calcium hydrogen phosphate for further mixing to obtain a blend; granulating the blend using a dry granulation method; filling the obtained granules into capsules, polishing, and packaging; and modifying the polylactic acid glycolic acid copolymer with povidone and ethyl cellulose to obtain the modified polylactic acid glycolic acid copolymer microspheres. This invention designs polylactic acid glycolic acid copolymer microspheres that are double-modified with povidone and ethyl cellulose, resulting in better drug loading flowability, more stable mixing uniformity, and significantly improved flowability compared to penicillin V potassium powder. The addition of fumed silica and anhydrous calcium phosphate further enhances antistatic properties and reduces the powder return rate.

The invention provides a photocatalytic material and a method for synergistically promoting growth of submerged plants by using the photocatalytic material and an underwater full-wavelength light source. The photocatalytic material comprises modified titanium dioxide, modified graphene and a surfactant, the modified titanium dioxide is prepared from the following raw materials: sodium alginate, gadolinium nitrate and tetrabutyl titanate; the modified graphene is prepared from the following raw materials: graphene, ascorbic acid, acrylic acid and ethyl cellulose. When a photocatalytic net prepared from the photocatalytic material is placed in a polluted river or a polluted pond and the like, even if the photocatalytic net is below the water surface, chemical oxygen demand, ammonia nitrogen, total phosphorus and total nitrogen can still be reduced, and dissolved oxygen can be obviously increased; and even if the prepared photocatalytic net is placed at a deeper position below the water surface, the prepared photocatalytic net still has lower chemical oxygen demand, ammonia nitrogen, total phosphorus and total nitrogen and higher dissolved oxygen when being placed at a deeper position below the water surface compared with the prepared photocatalytic net which is placed at a position closer to the water surface, and meanwhile, by compensating the light source underwater, the photocatalytic net can be more stable in water quality. Therefore, the planting and growth of submerged plants are further improved.

This invention discloses a micro / nano robot, its fabrication method, and its applications. The ethyl cellulose micro / nano robot has a three-dimensional structure. It comprises a stacked magnetic layer and a functional layer. The functional layer includes a functional substance and ethyl cellulose. The functional substance is selected from at least one of drugs, fluorescent dyes, quantum dots, and catalysts. The magnetic layer includes a magnetic material and ethyl cellulose. The micro / nano robot of this invention loads a functional substance into ethyl cellulose and imparts a specific arc-shaped structure to the robot through infrared radiation post-processing. This allows the magnetically controlled micro / nano robot to achieve directional movement in a magnetic field, enabling intelligent actuation at a microscale. Furthermore, its different functional characteristics allow for better positioning and execution of functional tasks, thus possessing potential application value in precision biomedicine, visualization research, and real-time monitoring and detection.

The invention provides a biodegradable ammonium persulfate coating gel breaker for fracturing operation and a preparation method of the biodegradable ammonium persulfate coating gel breaker. The preparation method comprises the following steps: determining a mass ratio R of rosin glyceride to ethyl cellulose according to a target reservoir temperature T, and calculating a coating weight gain ratio coefficient K and the total mass of a coating material according to target delayed gel breaking time t; preparing a core material ammonium persulfate into a water phase, and emulsifying in an oil phase to form a reversed-phase microemulsion; a gradient interface deposition method is adopted, a coating solution A prepared from rosin glyceride and part of ethyl cellulose and a coating solution B prepared from the remaining ethyl cellulose are dropwise added in sequence, and a coating material is sequentially deposited on a core material liquid drop interface through pressure reduction to form a compact bottom layer and a slow-release main body layer; according to the invention, the coating layer is biodegradable, chlorine-free and corrosion-free, through the cooperation of the material ratio and the process, the accurate and controllable delay of the gel breaking time at high temperature is realized, the reservoir is effectively protected, and the fracturing effect is improved.

The invention relates to the field of cosmetics, in particular to a traditional Chinese medicine compound body lotion with relieving and itching relieving effects and a preparation method thereof. Comprising the following components in percentage by weight: 1%-3% of coptis chinensis paste, 0.05%-0.15% of a white birch bark extract, 0.05%-0.15% of a radix scrophulariae extract, 0.01%-0.03% of sodium hyaluronate, 0.3%-0.7% of butyrospermum parkii butter, 0.15%-0.35% of carbomer, 1%-3% of a first emulsifier and the balance of water. The first emulsifier is prepared from isostearyl alcohol, butanediol cocoate and ethyl cellulose; carbomer and the first emulsifier form a double-gel latex system. All the active substances improve the skin microenvironment together, conditions are created for the active ingredients to play roles and skin self-repairing, and synergism of barrier repairing and moisture maintaining is achieved. The synergistic active ingredients and the first emulsifier form a double-gel latex system as a carrier through carbomer, and the effect of the double-gel latex system can be better exerted.

This invention relates to a biodegradable barrier antibacterial moisture-absorbing film, which consists of two layers: a quaternary ammonium salt chitosan / hydroxyethyl cellulose composite layer and a methacrylated gelatin / methacrylated carboxymethyl chitosan composite layer. The two layers are bonded together by casting, biaxial stretching, and hot pressing, and a reaction is achieved between them to achieve a tight bond. The composite film has good tensile strength, ductility, and tear resistance. Under dry conditions, the film has good oxygen and carbon dioxide barrier properties, and also has good moisture absorption. This film can be used in packaging applications requiring barrier, moisture absorption, and antibacterial properties.

The invention relates to freshening and whitening toothpaste and a preparation method thereof. The freshening and whitening toothpaste comprises the following raw materials: hydrated silica, disodium dihydrogen pyrophosphate, a PVM / MA copolymer, color repair particles and an auxiliary agent, the color repair particles are prepared from mannitol, microcrystalline cellulose, CI 74160, cetyl alcohol, corn starch, ethyl cellulose and hydroxypropyl methyl cellulose. Through combination of triple whitening methods, tooth whitening is realized, a color locking film is formed on the surface of the whitened tooth, color spots and color spots are prevented, and the tooth yellowing risk is reduced. Experiments prove that the freshening and whitening toothpaste disclosed by the invention has an effect of freshening breath, the temperature of the inner wall of the oral cavity can be remarkably reduced by 4.5 DEG C by using the toothpaste, and the toothpaste has no irritation to the mucous membrane of the oral cavity and is high in safety.

Gummy or jelly candies with modified functional ingredients with controlled time-release. The invention relates to gummy or jelly candies (1) comprising at least one modified functional ingredient with controlled time-release, characterized in that they comprise, inside or on the surface, at least one modified functional ingredient (2), namely encapsulated and / or granulated, said gummy or jelly candies having the following constituents: at least one carbohydrate consisting of glucose syrup and / or sugar; at least one fiber; at least one protein; and at least one fruit in the form of concentrated juice or natural juice and / or at least one natural or artificial sweetener; at least one gelling agent; at least one flavoring; at least one coloring; said at least one modified functional ingredient which is a food functional ingredient; water;and at least one acid, the constituent (E) comprising an active substance or a functional ingredient proper (3) and an excipient, and being disposed of in capsules or granules (4), the excipient being a microencapsulation excipient in the case of capsules or a granulation excipient in the case of granules, said excipient being at least one of: glyceryl dibehenate, hydroxypropyl cellulose and / or ethyl cellulose, a constituent (E) having an excipient proportion of between 20 and 80% by weight.;