110results about How to "Play a sustained release effect" patented technology

Animal hair in life is a waste energy, the protein structure of the animal hair is stable and difficult to decompose under the natural condition, poultry feather and pig hair are used as raw materials to be mixed with alkaline substance slaked lime and sodium bicarbonate, the mixture is firstly soaked and then boiled, after the structure of the poultry feather and pig hair is destructed, the poultry feather and pig hair are ground and fermented to be used for preparing organic matters of the fertilizer, so that waste is utilized, the environment pollution is avoided, the resource is saved, the inner layer contains NPK (Nitrogen, Phosphorus and Potassium) element and trace minerals which are necessary for the high yield of crops, the NPK element and trace minerals are wrapped by a coating agent prepared by utilizing the resin so as to be used as a core of the organic fermented material, a film material is slowly decomposed, an effect for controlling the release of internal nutrients can be achieved, the waste caused by frequent application of fertilizer can be avoided, the cost is reduced, and the economic benefit is increased.

The invention relates to a cigarette filter tip particulate material of a double-layer structure and a manufacturing method of the cigarette filter tip particulate material, and belongs to the technical field of cigarettes. According to the invention, konjac serves as a core material which is flavored and granulated; on the basis of obtained flavor-loaded particles, ethyl cellulose is used as an adhesive and a sustained-release film; and outer layers of the particles are granulated by virtue of radix puerariae, so that a double-layer structure is defined, wherein the konjac particles on the inner layer of the double-layer structure are mainly used as carriers of flavors and fragrances; the ethyl cellulose in the middle mainly takes a sustained-release effect on the flavors and fragrances in the inner layer, and the ethyl cellulose can also function as the adhesive; and in the outer layer of the double-layer structure, smoke is improved mainly on the basis of intrinsic sweetness and moistness properties of the radix puerariae. The method provided by the invention, which is free from research and development of novel equipment, is low in production input and high in product yield; an excellent flavor-loading function of the konjac and the good sweetness and moistness properties of the radix puerariae are integrated; and the invention is easy for popularization and application.

The invention discloses a preparation method of a resistant starch nutritional carrier based on a metal-organic framework as well as a product thereof. The preparation method of the resistant starch nutritional carrier comprises the step of adsorbing metal-organic framework structured gamma-cyclodextrin on the surface of octenyl succinic anhydride modified starch (OSA-S) by taking the OSA-S prepared by performing esterification on octenyl succinic anhydride and resistant starch as a base material and under the effects of hydrogen bond, electrostatic force and the like, thus constructing the nutritional carrier with a porous network structure. The nutritional carrier has favorable solution self-aggregation performance; by virtue of the great load quantity of the relatively single OSA-S and the metal-organic framework structured gamma-cyclodextrin, functional substances such as nutritional elements can be embedded in a solid state mode, so that the damage caused by light irradiation, oxygen as well as acid-base and the like is prevented effectively, and a certain slow-release effect is achieved; the resistant starch also has a good health protection effect, and thus the nutritional carrier is expected to be a safe functional food additive applied to the food processing field.

The invention relates to a concrete crack autolysis self-repairing system and a preparation method thereof. The system comprises an autolysis repairing carrier and an autolysis protective film that is covered on the surface of the autolysis repairing carrier. A repairing agent is loaded on the autolysis repairing carrier. In preparation, the autolysis repairing carrier is prepared through a sol-gel method, then the autolysis repairing carrier is subjected to a pore enlarging treatment; after the pore-enlarging treatment, the autolysis repairing carrier is impregnated in a solution of repairing agent, then centrifugal separation is performed, the upper layer supernate is removed, the repairing carrier on the bottom is washed and dried in vacuum so as to obtain the repairing agent supported autolysis repairing carrier; and finally the autolysis repairing carrier is impregnated in an autolysis protective film solution so that the autolysis protective film can fully cover the surface of the autolysis repairing carrier. Compared with the prior art, the advantages of mineral self repairing method and microcapsule self repairing method are combined, and an autolysis carrier self-repairing system is prepared and can be used to repair cracks in a structure made of cement based material.

The invention discloses selenium-rich bio-fertilizer with a sustained release function and a preparation method thereof. The selenium-rich bio-fertilizer comprises, by weight, 280-300 parts of fertilizer body, biological microbial agents, 18-20 parts of functional carrier and auxiliary materials, wherein the biological microbial agents comprise, by weight, 0.08-0.09 part of Bacillus thuringiensis,0.1-0.15 part of Paenibacillus polymyxa, 0.2-0.25 part of Azotobacter chroococcum, 0.05-0.07 part of Bacillus subtitles, 0.1-0.15 part of Lactobacillus acidophilus, 0.1-0.15 part of Lactobacillus bulgaricus and 0.1-0.15 part of Streptococcus thermophilus; the functional carrier is prepared by mixing zeolite, charcoal, diatomite, sepiolite and bentonite according to the mass ratio of 3:1:1:2:1; the auxiliary materials comprise, by weight, 0.1-0.2 part of polyglutamic acid, 5-6 parts of potato powder, 0.1-0.2 part of humic acid, 5-6 parts of volvariella volvacea, 4-5 parts of garlic, 8-10 partsof pleurotus ostreatus, 4-5 parts of puffball, 5-6 parts of auricularia auricular and 12-13 parts of selenium ore. The selenium-rich bio-fertilizer and the preparation method thereof have the advantages that aiming at the feature that the absorption efficiency of vegetables or fruits to inorganic selenium is low, the selenium ore is ground into powder and prepared into a solution and a culture medium to culture fermentation fungi so as to obtain the fertilizer which can be well absorbed by plants, and the selenium content of the planted vegetables and fruits is increased.

The invention discloses a method for symbiotic rotational culture of rice, crayfishes, ducks and crabs, and relates to the field of agricultural ecological cultivation. The method comprises the following steps: in the middle ten days of January, digging cultivation ditches around a rice field, planting waterweed and typha angustifolia, arranging an anti-escape net around the rice field, placing juvenile crayfishes into the rice field in the first ten days of April, artificially cultivating rice seedlings in a greenhouse in the middle ten days of May, transplanting the seedlings into the rice field, irrigating water into the rice field, adding a nutrient into the water, placing juvenile crabs into the cultivation ditches and the rice field in the middle ten days of July, feeding ducks in abreeding shed in the last ten days of August, arranging fences on the periphery of a rice stubble field in the first ten days of November, and breeding the ducks in the rice field. The ducks, the crayfishes and the crabs are cultured alternately, the utilization rate of the rice field is increased, furthermore, mutual swallowing of the cultured products can be prevented, the rice and the culturedproducts mutually provide nutrients for each other, effective circulation of an ecological system is realized, resources are reasonably utilized, and the culture cost is saved.

The invention discloses antibacterial and odor-resistant spun-bonded non-woven fabric, a planar mask with the spun-bonded non-woven fabric and a manufacturing method of the planar mask. The antibacterial and odor-resistant spun-bonded non-woven fabric is prepared from the following raw materials in parts by weight: 75-85 parts of polypropylene, 15-19 parts of metallocene catalyzed linear low density polyethylene, 2-2.5 parts of mesoporous silica, 3-4 parts of sepiolite powder, 1.2-1.4 parts of dichlorophenyl imidazole dioxolane, 2.2-2.6 parts of avermectin, 1-1.6 parts of maleic anhydride grafted polypropylene, 1-1.5 parts of oleamide, 1.5-2 parts of erucyl amide, 1-1.5 parts of a heat stabilizer and 3-5 parts of polypropylene cooling masterbatch. The antibacterial and odor-resistant spun-bonded non-woven fabric has good antibacterial and odor-resistant effects, is particularly suitable for being applied to masks, and has excellent microbial indexes, cytotoxicity, skin irritation, delayed hypersensitivity and other performance indexes.

The invention relates to fiber and a preparation method thereof, in particular to a preparation for an antistatic coating for a stainless steel pipe. The antistatic coating is prepared from, by mass, 45-50 parts of epoxy acrylate, 31-44 parts of butanediol, 0.5-1 part of a catalyst, 8-12 parts of modified graphite, 5-8 parts of silver mesoporous silica microspheres, 3-8 parts of a nanometal compound, 0.1-0.5 part of antioxygen 1010 and 0.3-0.8 part of stabilizer. The prepared coating has an efficient and lasting antistatic and antibacterial effect, the additive amount of functional components is large, dispersity is good, and high-temperature processing is stable. The preparation method is simple, easy to operate and control, low in cost, environmentally friendly and suitable for batch production.

The invention discloses collagen gel/bentonite double coated slow-release compound fertilizer and a preparation method thereof. The collagen gel/bentonite double coated slow-release compound fertilizer is prepared by taking granular compound fertilizer as an inner core, taking gel formed from collagen extracted from pigskin as an inner coating material and taking absorptive mineral bentonite as an outer wrappage. According to the double coated slow-release compound fertilizer, the problems of optimization conditions for preparing a nutrient-preserving coating agent from the collagen gel, preparation technology and parameters of the slow-release fertilizer and evaluation of the slow-release effect of the coated slow-release fertilizer are solved; the preparation technology of the coated fertilizer is simple; raw materials of a coating agent are from organisms, can be completely biodegraded, and are environment-friendly and free of secondary pollution; and the environmental pollution from agricultural production is reduced and relieved while the utilization rate of the fertilizer effect is improved.

The invention relates to fibers and their preparing methods, in particular to an antistatic antibacterial composite functional stainless steel pipe coating, made from, by weight, 45-50 parts of epoxy acrylic resin, 31-44 parts of butanediol, 0.5-1 part of a catalyst, 8-12 parts of modified graphene, 5-8 parts of silver-loaded mesoporous silicon dioxide microspheres, 3-8 parts of a nano metal compound, 0.1-0.5 part of an antioxidant agent, and 0.3-0.8 part of a stabilizer. The coating prepared herein has efficient and lasting antistatic and antibacterial effects, many functional components are added, the dispersion is good, and high-temperature processing stability is good; the preparation method of the coating is simple and is easy to perform, easy to control, low in cost, environment-friendly, and suitable for batch production.

The invention discloses bio-fertilizer and a preparation method thereof. The bio-fertilizer comprises, by weight, 180-200 parts of fertilizer body, biological bacteria including 0.08-0.09 part of bacillus thuringiensis, 0.1-0.15 part of paenibacillus polymyxa, 0.2-0.25 part of azotobacter chroococcum, 0.05-0.07 part of bacillus subtilis, 0.1-0.15 part of lactobacillus acidophilus and 0.1-0.15 partof lactobacillus bulgaricus, 18-20 parts of functional carrier and auxiliary materials, the functional carrier is obtained by mixing zeolite, sepiolite and bentonite, and the auxiliary materials include 0.1-0.2 part of polyglutamic acid, 5-6 parts of potato powder, 0.1-0.2 part of humic acid, 5-6 parts of volvaria volvacea, 4-5 parts of garlic, 8-10 parts of pleurotus ostreatus and 12-13 parts ofselenium ore. Aiming at the characteristic that vegetables or fruit plants are low in efficiency of absorbing inorganic selenium, the selenium ore is ground into powder which is then prepared into asolution and a culture medium to culture zymophyte, and the cultured zymophyte serving as fertilizer can be absorbed by plants better, so that selenium content of planted and treated vegetables and fruits is increased. The solution formed by selenium ore powder is treated layer by layer, so that selenium therein is retained, and heavy metals therein are eliminated.

The invention discloses a method for cross-linking chitosan by radiation of electron beams and relates to a method for cross-linking the chitosan. The invention solves the technical problem that due to the introduction of a cross-linking agent, the application range of a cross-linked product of the chitosan is limited to a great extent. The method comprises the following steps of: 1, adding the chitosan into aqueous solution of lactic acid to obtain mixed solution; 2, vacuumizing the mixed solution, carrying out vacuum plastic packaging and then radiating by utilizing high frequency electron beams to complete the cross-linking of the chitosan by radiation of the electron beams. The invention provides the method for cross-linking the chitosan by radiation of the electron beams. Compared with other methods, the radiation cross-linking method has the advantages that any additive does not need to be added; synthesized high polymer has high purity; no problems of residual additives and the like are generated; and the polymer with a single-component system, which does not contain other impurities, can be obtained. Therefore, the difficult problems of introduction of the cross-linking agent and treatment of the residual cross-linking agent, which are generated when the cross-linked chitosan is applied in the field of medicine, can be solved.

The invention provides a method for preparing ammonium potassium polyphosphate from acid potassium dihydrogen phosphate, which comprises the following steps: mixing acid potassium dihydrogen phosphateand a condensing agent, and heating to perform polymerization reaction to obtain ammonium potassium polyphosphate, wherein the mass ratio of the acid potassium dihydrogen phosphate to the condensingagent is 20:(1-10), and the temperature of the polymerization reaction is 140-200 DEG C. The preparation method disclosed by the invention is simple and convenient, wherein the reaction temperature isonly 200 DEG C at most, and extra ammonia is not required. The preparation method is carried out under a normal pressure condition and is free of high-temperature and high-pressure special equipment,so that the high-quality potassium ammonium polyphosphate fertilizer can be produced by only adopting common chemical equipment and chemical raw materials, and the market prospect is very good. The total nutrient N + P2O5 + K2O of the potassium ammonium polyphosphate product prepared by the preparation method is greater than 85% and the polymerization degree is 2-20, so that the potassium ammonium polyphosphate product has good water solubility, and the polymerization rate is greater than 95%.

The invention discloses an eye cream composition containing an anti-blue-light lipidosome and a preparation method thereof. The anti-blue-light eye cream is prepared from the following raw material components: 1.0-35.0% of an anti-blue-light lipidosome, 5.0-40.0% of an emollient, 0.5-30.0% of an emulsifier, 0.5-20.0% of a filler, 0.1-10.0% of a thickener, 0.3-5.0% of a preservative, 0.01-1.0% of daily essence and the balance deionized water. The eye anti-blue-light lipidosome is prepared by combining a rhodiola crenulata root extract, a porphyra umbilicalis extract and carnosine. Therefore, the liposome is prepared from the three anti-blue-light functional components and has better transdermal absorption and slow release effects. The anti-blue-light functional components have strong antioxidant ability, can remove free radicals generated by blue light irradiation, effectively delay skin aging caused by blue light, reduce pigmentation and stain generation, repair light loss skin, effectively maintain skin elasticity, make skin bright and uniform, keep skin young and vigor, and improve other aging phenomena of skin around eyes.

The present invention discloses a plant extract compound bacteria-reducing agent. The plant extract compound bacteria-reducing agent is composed of the following components in parts by weight: 5-10 parts of star anise essential oil, 5-10 parts of clove essential oil, 5-10 parts of spearmint essential oil, 5-10 parts of isopropyl myristate, 10-20 parts of a garlic water extract, 0.5-1 part of lactic acid, 80-160 parts of distilled water, 15-30 parts of Tween 80, 15-30 parts of RH-40 and 15-30 parts of absolute ethyl alcohol. The present invention also discloses a preparation method of the plant extract compound bacteria-reducing agent. The plant extract compound bacteria-reducing agent has obvious bacteria-preventing and bacteria-reducing effects on food-borne bacteria commonly found in life, such as escherichia coli, staphylococcus aureus, bacillus subtilis, candida albicans, shigella dysenteriae, etc.

The invention belongs to the technical field of preservation in food processing, and in particular relates to an antibacterial damping foam for fruits and vegetables. The antibacterial damping foam is mainly prepared by use of a template porous making method after adding compound antibacterial agent, tributyl citrate and sodium bicarbonate in polylactic acid, wherein the compound antibacterial agent is formed by mixing linalool and citral in a mass ratio of (1 to 9)-(9 to 1); the mass ratio of the polyactic acid to the compound antibacterial agent is (1 to 0.1)-(1 to 0.2), the mass ratio of the polyactic acid to the tributyl citrate is (1 to 0.03)-(1 to 0.05), and the mass ratio of the polyactic acid to the sodium bicarbonate is (1 to 12)-(1 to 15). The antibacterial damping foam for the fruits and vegetables disclosed by the invention not only has the damping effect in a logistics process, but also has the bacteriostasis in a storage process, thereby playing a lasting preservation effect and reducing the loss in the logistics storage and transportation processes of the fruits and vegetables.

The invention discloses a long-acting antibacterial negative ion polypropylene material and a preparation method thereof. The antibacterial polypropylene material is prepared from the following components in parts by weight: 88.6 to 67.0 parts of polypropylene, 3 to 18 parts of an antibacterial agent filler, 7 to 12 parts of a toughening agent, 0.4 to 0.9 part of an antioxidant, 1 to 1.5 parts ofa lubricant and 0.2 to 0.6 part of a coupling agent. The preparation method comprises the following steps: adding the components into a high-speed mixer, performing dry mixing for 5-10min, adding theuniformly mixed raw materials into a double-screw extruder, and performing melt extrusion granulation. The invention discloses that the hollow structure of hollow halloysite is utilized for a first time, an amino acid/ZnO/tourmaline nano composite material with excellent antibacterial performance is loaded to and exists in a hollow structure of halloysite through a self-assembly reaction at normaltemperature, so that the antibacterial material is protected in the use process and is not prone to precipitation and failure along with severe use environments such as moisture, heat and abrasion.

The invention relates to the field of traditional Chinese medicine preparation, discloses an intelligent hydrogel for preventing and treating cervical diseases, and also discloses a preparation methodthereof. The intelligent hydrogel is prepared from block copolymer of polyoxyethylene polyoxypropylene ether, polyglutamic acid, hyaluronic acid, yeast dextran, glycyrrhizin organic polymer, compoundzedoary turmeric oil, fructus cnidii, radix sophorae flavescentis, water-soluble alpha-bisabolol, phellodendron, borneol, dandelion, anthocyanidin and so on. In a fluid state when injected into the body, After entering the body, it quickly distributes to the surface of the cervix and the bottom of the vagina, effectively covers the wound surface, and then the hydrogel is heat exchanged with the human body in the body to form a stable gel, and a gel layer with a spatial network structure is formed on the surface of the whole cervix and the bottom of the vagina, so that the drug ingredients inthe hydrogel can play a lasting role. The hydrogel can promote the convergence of cervical wound erosion surface, remove odor, reduce seepage fluid and blood, improve erosion, alleviate leucorrhea, and restore normal vaginal environment.