53results about How to "Long-lasting release" patented technology

The invention relates to compound formula mouth wash of chlorine dioxide, cetylpyridinium chloride and zinc ion and a preparation method thereof. The compound formula mouth wash comprises the following main raw materials: chlorine dioxide, cetylpyridinium chloride and zinc ions, wherein a solvent is distilled water; the concentration of the chlorine dioxide is 200-500 ppm; the cetylpyridinium chloride accounts for the mass fraction of 0.05-0.2 percent relative to the compound formula mouth wash; and the zinc ions accounts for the mass fraction of 0.5-1 percent relative to the compound formula mouth wash. The preparation method of the compound formula mouth wash comprises the following steps of: dissolving the cetylpyridinium chloride and zinc acetate into the distilled water; dissolving a menthol crystal into 95 percent of ethanol; adding a menthol crystal and ethanol solution to a water solution for stirring, and simultaneously adding glycerol; additionally dissolving chlorine dioxide powder into the distilled water; adding a chlorine dioxide water solution to the water solution while stirring; uniformly stirring, and adding the distilled water to obtain the compound formula mouth wash of the chlorine dioxide, the cetylpyridinium chloride and the zinc ions. The invention can effectively inhibit bromopnea for a long time and has fewer side effects and no obvious irritation on an oral mucosa.

The invention provides a preparation method of a carboxymethyl chitosan quaternary ammonium salt/organic rectorite nano composite material and an application thereof. The carboxymethyl chitosan quaternary ammonium salt/organic rectorite nano composite material comprises the basis components of carboxymethyl chitosan quaternary ammonium salt and organic rectorite, and is generated by intercalating the carboxymethyl chitosan quaternary ammonium salt layer between the organic rectorite layers, wherein the distance between the intercalated organic rectorite layers is 4.2-4.72 nm. The preparation method comprises the following steps: dropwise adding the carboxymethyl chitosan quaternary ammonium salt solution of a certain concentration to the organic rectorite aqueous suspension under the condition of stirring at 70-80 DEG C, and then freezing and drying to obtain the nano composite material carboxymethyl chitosan quaternary ammonium salt/organic rectorite. The nano composite material can be used as a drug carrier, has the advantages of both the carboxymethyl chitosan quaternary ammonium salt and the organic rectorite, the drug control-release capability of the nano composite material is superior to that of the single carboxymethyl chitosan quaternary ammonium salt, and the heat resistance of the nano composite material is also significantly improved compared with that of the carboxymethyl chitosan quaternary ammonium salt.

The invention discloses a doxycycline-hyclate-carried GTR (Guide Tissue Regeneration)/GBR (Guide Bone Regeneration) composite membrane and a preparation method thereof and belongs to the technical field of medicines. The GTR/GBR composite membrane adopts a three-layer structure, wherein the upper surface layer, the lower surface layer and the sandwich layer are all manufactured through sequence electrospinning; the upper surface layer and the lower surface layer are prepared from a natural polymer material and a mixed solution through which the polymer material is synthesized; the sandwich layer is a membrane layer prepared from a doxycycline-hyclate-carried solution through which the polymer material is synthesized. The uniaxial sequence electrospinning method is adopted to prepare the composite membrane adopting the three-layer structure, so that the medicine entrapment efficiency of fibers is improved, the preliminary burst effect of a medicine is reduced/eliminated, and continuously slow release of the medicine is realized. The two surface layers of the three-layer medicine-carried composite membrane can not only serve as porous barriers to control the medicine release rate so as to realize continuously slow release of the medicine but also prevent direct contact between the medicine and tissues to improve the compatibility between the tissues and the membrane so as to be more conducive to tissue repair and regeneration.

The invention discloses a negative oxygen ion functional coating, a preparation method and an application, comprising 3 to 5 parts of tourmaline powder, 1 to 3 parts of graphene oxide, 1 to 2 parts of nano-titanium oxide, 15 to 20 parts of gypsum powder, and diatom powder 30-50 parts of at least one of clay or montmorillonite, and 10-20 parts of at least one of styrene-acrylic emulsion, pure benzene emulsion or water-based polyurethane. The preparation process of the paint raw material of the present invention is simple, and only needs to be pulverized and ground to a specified fineness; the painting process is simple, and no large-scale engineering construction equipment is required; while improving the durability and decoration of the expanded perlite external wall insulation board, it also It can release negative oxygen ions, play the ecological effects of haze reduction, sterilization and air purification, etc., and enrich the performance of the external wall insulation board material; it is prepared into a water-based paint, which has green environmental protection and energy-saving effects compared with traditional oil-based paints; the present invention The produced coating releases a negative oxygen ion concentration of 6000Ions/cm within 14 days ³ above.

The invention belongs to the technical field of paints, and particularly relates to a multifunctional negative-ion dry powder paint. The multifunctional negative-ion dry powder paint is prepared from,by mass, 8-15% of calcined shell powder, 25-30% of ash calcium powder, 10-15% of diatomite, 20-30% of ground calcium carbonate, 2-5% of titanium powder, 1-1.5% of talcum powder, 1-2% of kaolin, 0.8-3% of nanometer titania, 1-3% of negative ion powder, 6-8% of far infrared powder, 0.7-1% of white carbon black, 0.4-0.8% of a cellulose-based surfactant, 0.7-1.5% of redispersible latex powder and 0.03-0.07% of starch ether, wherein the sum of all the components is 100%. The multifunctional negative-ion dry powder paint has the advantages that the paint is capable of efficiently absorbing formaldehyde and other harmful gases and naturally and durably releasing negative ions, excellent in ultraviolet resistance, mould resistance and sterilizing capacity, good in breathability, capable of adjusting the humidity of indoor air and the like, and a coating has high strength and toughness, high rigidity, and a highly bright surface and is fine, smooth, and resistant to washing; the negative-ion dry powder paint integrates multiple functions, is safe, harmless and environmentally friendly, construction is facilitated, polishing links are not needed, and the health of builders is facilitated.

The invention discloses a multi-element rice special fertilizer which is prepared from the following raw materials by weight: 60-80 parts of livestock manure, 30-40 parts of humic acid, 20-30 parts ofplant ash, 40-50 parts of urea , 15 to 25 parts of monoammonium phosphate, 30 to 40 parts of potassium dihydrogen phosphate, 20 to 30 parts of potassium chloride, 5 to 7 parts of boric acid, 4 to 6 parts of magnesium sulfate, 3 to 5 parts of trace elements, 2 to 4 parts of cross-linked chitosan and 2 parts of sodium dehydroacetate. The invention also discloses a preparation method of the multi-element rice special fertilizer. The multi-element rice special fertilizer prepared by the method has the advantages of comprehensive nutrition, and excellent performances of increasing of production and income, improving of nutrient utilization rate, and fully satisfying the nutrient needs of rice, can meet the needs of the rice in the whole growth period by once fertilizing, saves manpower, improves soil ventilation and fertilizer absorption and water retention properties, promotes the stable growth of rice plants and significantly increases the yield and quality of the rice.

The invention discloses a negative ion wall paint and relates to the technical field of paint production. The negative ion wall paint is prepared from the following components in parts by weight: 0.5-0.9 part of a dispersant, 0.1-0.2 part of a wetting agent, 0.1-0.4 part of a bactericide, 0.1-0.25 part of a leveling agent, 0.2-0.3 part of a defoaming agent, 1-3 parts of propylene glycol, 1-2 parts of a coalescing agent, 1-2 parts of negative ion powder, 7-8 parts of titanium dioxide, 12-18 parts of kaolin, 4-6 parts of talc powder, 1-3 parts of hydroxyethyl cellulose, 0.1-0.5 part of an anti-mildew agent, 0.2-1 part of a thickening agent, 0.5-3 parts of wax emulsion, 0.1-0.3 part of a pH regulator, 0.1-1 part of a flavoring agent and 10-18 parts of deionized water. The negative ion wall paint is applied to decorate building wall surfaces, and the problem that the existing negative ion wall paint is low in negative ion release quantity is solved.

The invention relates to the field of filtering materials, and discloses a filtering material capable of releasing ecological negative ions and a preparation method thereof. A main body of the filtering material is an air or water body filtering substrate which is loaded with nanometer negative ion powder and is made of a macromolecular material. The preparation method comprises the following steps of (1) mixing negative ion powder, an inorganic dispersant and deionized water, and grinding at high speed, so as to obtain stable dispersing liquid containing the nanometer negative ion powder; (2)adding the stable dispersing liquid into a water-based adhesive, stirring at high speed, and emulsifying, so as to obtain an opened-pore water-based adhesive emulsion containing the nanometer negative ion powder; (3) adopting a gap type spot-spray flow technology, and performing scattering type spot-spray flow operation on the filtering substrate multiple times, so as to obtain the filtering substrate loaded with the nanometer negative ion powder; (4) curing the filtering substrate, so as to obtain the filtering material. The filtering material has the advantages that the immobilizing property is efficient, the load is not liable to fall off, and the release amount of ecological negative oxygen ions can reach 25000 per square centimeter.

The present invention discloses a natural plant essential oil trapping agent having a bemisia tabaci trapping function. The natural plant essential oil trapping agent comprises compound essential oil and sustained-release adsorbent granules, wherein the compound essential oil comprises following components in parts by volume: 1-3 parts of mentha asiatica oil, 1-3 parts of mint oil, 1-3 parts of peppermint oil, 1-3 parts of estragon oil, and 1-3 parts of miscellaneous lavender oil. The essential oil trapping agent disclosed by the invention has the advantages of being long in lasting, high in volatilization stability, harmless to environment, free of air pollution and capable of achieving the injurious insect trapping function, and the agent with low dose can be used; combined with a trapping lamp, the natural plant essential oil trapping agent can effectively kill the bemisia tabaci in a concentrating manner so as to effectively prevent and control the bemisia tabaci, and effectively reduce the damage of worldwide invasive injurious insect, bemisia tabaci, to greenhouse crops.

The invention belongs to the technical field of coating processing, and particularly relates to an antibacterial and antiviral coating and a preparation method thereof, and the antibacterial and antiviral coating comprises the following substances in parts by weight: 75-80 parts of film-forming resin, 10-15 parts of emulsion, 6-9 parts of film-forming aid, 0.5-1.5 parts of defoamer, 0.5-1 part ofwetting agent, 4-8 parts of modified filler, 2-4 parts of antibacterial additive and 0.1-0.3 part of amine neutralizer. The coating is good in antibacterial and antiviral capacity, simple in preparation method and easy to apply and popularize.

The invention relates to a preparation method of mesoporous silica long-acting antibacterial nano-materials with the high selenium loading amount. The preparation method comprises the steps: preparation of pore-expanded mesoporous silica, preparation of a selenium source and ascorbic acid mixed solution, and preparation of the selenium-loading mesoporous silica antibacterial nano-materials. The Se-MSNs obtained through the method are high in selenium loading amount, high in adjustability and controllability and good in dispersity, particles are uniform, pore passages of the Se-MSNs can be fully filled with Se, compared with pure Se, particles of the Se-MSNs have the obvious advantage in the aspect of dispersity, and thus the Se-MSNs have the characteristics of long-acting release, durablebacterium resistance and the like and are expected to serve as a novel non-toxic and harmless long-acting antibacterial material.

The invention discloses a preparation process for a slow-release type chlorine dioxide microcapsule antibacterial film. The preparation process comprises the following operation steps: 1, preparing microcapsule powder: dissolving gelatin in a stable chlorine dioxide aqueous solution to obtain a water-phase solution; dissolving PLA in dichloromethane to obtain an oil-phase solution; and adding a Span-80 emulsifier into the oil-phase solution, then adding the water-phase solution and liquid paraffin, performing stirring, performing vacuum filtration, and performing lyophilization to obtain the chlorine dioxide microcapsule powder; and 2, preparing the antibacterial film: adding the chlorine dioxide microcapsule powder, an activator and a plasticizer to a film-forming base material PLA, performing uniform stirring, allowing the stirred materials to stand for 60min for eliminating bubbles, and performing coating by a flat-board coating machine to form the film. According to the invention, the antibacterial film prepared by adopting the method has the advantages of wide raw material sources, safety and sanitation, biodegradability and the like, and the antibacterial film has powerful antibacterial effects, a long slow-release period, and wide application prospects in a freshness-retaining respect of fresh foods.

The invention discloses a micro-capsule compound wrapping essential oil and rice fermentation filtrate as well as an application. The micro-capsule compound wrapping the essential oil and the rice fermentation filtrate comprises the essential oil, the rice fermentation filtrate and a micro-capsule body, wherein the essential oil and the rice fermentation filtrate are wrapped with the micro-capsule body; the essential oil is a mixture of iris tectorum essential oil, neroli essential oil and geranium essential oil. The invention further provides a cosmetic containing the micro-capsule compound wrapping the essential oil and the rice fermentation filtrate. The cosmetic is prepared from 50%-99.8% of a cosmetic matrix and 0.2%-50% of the micro-capsule compound wrapping the essential oil and the rice fermentation filtrate. The micro-capsule compound wrapping the essential oil and the rice fermentation filtrate is applied to the cosmetic, essential oil and other active ingredients can effectively infiltrate into skin and can be released lastingly, the effects of skin whitening, spot fading, restoration and oxidation resistance are achieved, and the skin can restore a youthful and vigorous state.

The invention discloses a composition for treating oral diseases and a preparation method of the composition. The composition is mainly prepared from the following components: chlorine dioxide, cetyl pyridinium chloride and zinc ions, wherein the solvent is distilled water, the concentration of chlorine dioxide is 200-500 ppm, the weight of cetyl pyridinium chloride accounts for 0.05-0.2 % of that of compound mouthwash, and the weight of zinc ions accounts for 0.5-1 % of that of the compound mouthwash. The preparation method of the composition comprises the following steps: dissolving cetyl pyridinium chloride and zinc acetate in the distilled water, dissolving menthol in 95% alcohol, adding the menthol alcohol solution into an aqueous solution, carrying out stirring, and meanwhile, adding with glycerinum; taking chlorine dioxide powder, dissolving the chlorine dioxide powder in distilled water, adding the chlorine dioxide aqueous solution into aqueous solution under stirring, carrying out uniform mixing, and adding with distilled water, thus obtaining the composition for treating oral diseases. The composition has the advantages that the mouth odor can be inhibited for a long term, the side effects are small, and no obvious irritation is caused to the oral mucosa.

The invention discloses a preparation method of a moisture-fertility preserving rice fertilizer. The preparation method comprises the following steps: mixing sodium carboxymethyl cellulose and absolute ethyl alcohol and stirring uniformly; sequentially adding water and borax in a stirring state; after complete addition, continuously stirring, washing and drying to obtain pretreated borax; adding bamboo charcoal, fatty alcohol-polyoxyethylene ether, absolute ethyl alcohol and toluene into the pretreated borax and mixing uniformly; adjusting the temperature; adding sodium hydroxide, propylene oxide and chloromethane and mixing and stirring; standing; heating for reacting; removing the solvent and adjusting the pH value of the system to 6.2-6.6; washing and drying to obtain borax composite bamboo charcoal; fermenting human/animal excreta, plant straw, pond sludge, tapioca flour and biological bacteria in a fermentation tank; adding the borax composite bamboo charcoal, ground calcium carbonate, kaolin, glimmerite, sodium silicate, EDTA chelated zinc, EDTA chelated manganese and compound sodium nitrophenolate and mixing uniformly; and granulating to obtain the moisture-fertility preserving rice fertilizer.

The invention discloses a slow-release Fenton-like system based on an immobilized enzyme, and provides a method for in-situ remediation of groundwater pollution. The method mainly comprises the following steps: 1) selecting a central well and a plurality of peripheral chemical adding wells in a pre-remediated groundwater pollution area; 2) adding green rust into the chemical adding wells, then pumping water from the central well, recharging the water into underground water through the chemical adding well, and continuously pumping water until green rust appears; and 3) arranging an immobilized enzyme reactor in each chemical adding well, conducting aerating, introducing a glucose solution, pumping a small amount of water in the central well, recharging the water into underground water through the chemical adding wells, and pumping water until the concentration of effluent pollutants reaches the standard. The slow-release Fenton-like system has a pH range close to the environment where underground water is located, lasting slow release of free radicals and controllability of a degradation area can be achieved in the whole process, other pollutants cannot be introduced into the underground water, and non-toxicity and harmlessness can be achieved.

The invention provides organic and inorganic fertilizers selecting vermicompost as a green organic fertilizer. The organic and inorganic fertilizers are characterized by comprising equal to and greater than 20% of vermicompost, less than and equal to 30% of water, equal to and greater than 3.0% of N, equal to and greater than 3.0% of P2O5, equal to and greater than 3% of K2O and trace elements, such as Fe, Mn, Cu and Zn each of which the content is greater than 0.1%. According to the invention, crops are fertilized by a combination of the organic fertilizer and inorganic fertilizer, so that the shortcomings of the nutrient deficiency of the organic fertilizer and the soil hardness easily caused by inorganic fertilizer are made up, physical and chemical indexes of the soil can be improved and soil organic matter can be updated or enriched, thereby improving product quality and enhancing disease resistance.