38results about How to "Solve the problem of short storage period" patented technology

The invention discloses a method for preparing transparent dealcoholized single-component room temperature vulcanized silicone rubber. The method is characterized by comprising the steps of mixing 80-90% of alpha, omega-dihydroxydimethylpolysiloxane, 1-15% of white carbon black reinforcing filler and 5-10% of alkane mixture plasticizer in a blender in a vacuum state at a room temperature; and then adding 1-5% of siloxane crosslinking agent to be mixed in a vacuum state; adding 0.01-2% of siloxane titanate TiOSi catalyst, 0.01-3% of organic tin catalyst and 0.01-5% of silane coupling agent to be mixed in a vacuum state; and discharging out and packaging. Through the method disclosed by the invention, rubbers can be effectively prevented from yellowing on the basis of keeping the catalytic efficiency, and the problem of short storage life of the rubber can be effectively solved.

The invention relates to a biological glue adhesive and a method for making the same. The method comprises the following steps that: water and sodium benzoate are mixed and heated in the proportion of 55-70:1 by weight percentage; after the sodium benzoate is entirely dissolved, alum equal to 0.8-1.2 times the weight of the sodium benzoate is added into the water, and the water is stirred to produce milky solution for standby application; in the proportion of 1:1.6-2.5 by weight percentage, sheepskin glue or bone glue is dissolved in the produced milky solution; starch equal to 1/10-1/4 of the weight of the sheepskin glue or bone glue and the sodium benzoate or sodium diacetate equal to 1/3-1/2 of the weight of the sheepskin glue or bone glue are added into the milky solution; the milky solution is stirred well and then finished products can be obtained. The biological glue adhesive solves the deficiencies that the sheepskin glue or bone glue is high in freezing point, liable to mildew and short in storage time. The biological glue adhesive has low freezing point at about 12 DEG C in summer and at about 5 DEG C in winter, and is high in bonding strength, difficult to mildew, stable in performance, easy to store, nontoxic, harmless and low in cost, which is an environmentally friendly biological adhesive.

The invention belongs to the technical field of healthcare beverages, specifically relates to a water chestnut-peanut milk compound beverage and furthermore discloses a preparation method of the water chestnut-peanut milk compound beverage. The water chestnut-peanut milk compound beverage is prepared from the following raw materials in parts by weight: 10-14 parts of water chestnuts, 5-8 parts of peanuts, 2-4 parts of honey, 3-5 parts of rock candies, 80-100 parts of purified water, 7-14 parts of a functional sweetening agent, 0.6-1.2 parts of a thickening agent and 0.1-0.5 part of an emulsifier. The water chestnut-peanut milk compound beverage integrates the nutrition and healthcare characteristics of the water chestnuts and the peanuts, perfectly combines the unique fresh and sweet taste of the water chestnuts and the mellow and strong flavor of the peanut protein, reconciles the flavors of the water chestnuts and the peanuts so as to make the taste unique, and has the healthcare functions of tonifying the spleen, moistening the lung, clearing the heat, reducing the phlegm, promoting the secretion of saliva or body fluid, moistening the dryness, strengthening the brain, tonifying the mentality, improving the memory and reducing the cholesterol.

The invention relates to the technical field of an alkoxy silane-terminiated polymer, especially to a high-strength and low-toxicity alkoxy mixed silanes modified polymer for RTV sealants and adhesives and a production technology thereof. The polymer comprises polyurethane, polyether, polyacrylate or any other linear or cross-linked polymer containing free reactive hydroxyl groups which can react. The ratio of methyl dimethoxy to triethoxy is between 2:8 and 8:2. By controlling quantity of carbamic acid ester to minimize hydrogen bonds, viscosity of the polymer at 25 DEG C is within 20000-30000. In comparison with a trimethoxy silane gamma-silane-terminated polymer, the novel alkoxy silane-terminiated polymer has higher mechanical strength. The problem that a trimethoxy silane-terminated product is sensitive to moisture and has short shelf life is solved.

The invention discloses an emulsified explosive with long-term storage stability, belongs to the technical field of explosives, and relates to an emulsified explosive. The problem that an existing emulsified explosive is short in storage period is solved. The emulsified explosive with the long-term storage stability is prepared from, by weight, 72.23 parts of ammonium nitrate, 9.85 parts of sodiumnitrate, 11.71 parts of water, 1.46 parts of paraffin, 1.46 parts of microcrystalline wax, 0.31-0.96 part of base oil, 0.62-1 part of Span-80 and 0.93-2.36 parts of LZ2820. Accordingly, two emulsifiers of Span-80 and LZ2820 are mixed to prepare the emulsion explosive, and the emulsion explosive is high in detonation speed and brisance, better in storage stability and good in water resistance.

The invention relates to a thermally activated polyurethane hot melt adhesive and a preparation method thereof, wherein the thermally activated polyurethane hot melt adhesive is obtained by reacting polyurethane with the NCO mass content of 2-5% and an oxazine small molecule compound containing reactive hydrogen, and the molar ratio of the reactive hydrogen in the oxazine small molecule compound containing reactive hydrogen to the NCO of the polyurethane is 1:1-1:0.5. The preparation method comprises the steps: in the presence of protective gas, mixing and reacting the oxazine small molecule compound containing reactive hydrogen and the molten polyurethane to obtain the thermally activated polyurethane hot melt adhesive. The invention provides the thermally activated polyurethane hot melt adhesive and the preparation method thereof. NCO at the tail end of a common moisture-curing polyurethane hot melt adhesive is modified, so that the hot melt adhesive is prevented from being sensitive to water vapor, the problem that the moisture-curing polyurethane hot melt adhesive is short in storage period is solved, no sealing agent needs to be added, and the phenylproxazine small-molecule compound plays a role of a conventional sealing agent.

The invention relates to a hydrophobic silica sol precursor composition and a preparation method thereof. The composition comprises following components in parts by weight: 5-10 parts of monofunctional group silane component A, 30-50 parts of bifunctional group silane component B, 5-10 parts of silane coupling agent C, 10-20 parts of solvent D, 5-15 parts of organic alkali E, 10-20 parts of inorganic alkali F, 0.4-0.6 part of organosiloxane polyether G, 0.1-0.3 part of long-chain alkylbenzene sulfonate H, 0.1-0.3 part of organosilicone phosphate I and 10-40 parts of 40 parts of water glass J. According to the hydrophobic silica sol precursor composition prepared by the invention and the waterproof agent prepared from the hydrophobic silica sol precursor composition, the hydrophobicity is improved, and the sufficient waterproofness of the material is ensured.

The invention relates to the technical field of food processing, and particularly relates to fructus hibiscus coccineus buffalo milk yogurt and a preparation method thereof. The fructus hibiscus coccineus buffalo milk yogurt disclosed by the application is prepared from the following raw materials in parts by weight: 10 to 20 parts of fructus hibiscus coccineus juice, 3 to 7 parts of white sugar, 80 to 150 parts of buffalo milk, and 7 to 10 parts of a yogurt leavening agent, wherein the leavening agent is prepared from lactobacillus delbrueckii subspecies bulgaricus, streptococcus thermophilus, bifidobacterium pseudolongum and lactobacillus plantarum in a mass ratio of 2 to 1 to 1 to 1; the lactobacillus plantarum in the leavening agent is obtained by carrying out separation from three-way crossbred buffalo milk of self-breeding variety by an inventor, macromolecular substances such as proteins, cellulose and pectin can be converted into small molecule substances which are easily absorbed by a human body, and lactase and the like also can be produced so as to be beneficial for the human body to digest lactose; moreover, the buffalo milk yogurt has a plurality of physiological functions of protecting the stomach and the liver, preventing aging, increasing the endurance, resisting cancers and the like.

The invention relates to a dyke-dam leak stoppage device and belongs to the technical field of emergency treatment of dykes and dams in water conservancy projects. The IPC class number of the dyke-dam leak stoppage device is E02B 1/00, E02B 3/02. The dyke-dam leak stoppage device is composed of seven portions of a leak water inlet position indicator, a duckweed-shaped floating object, a conical connecting rope, high-water-absorbing-quality resin balls, a series connection rope, a counter weight and a traction rope. When the dyke-dam leak stoppage device is moved to a leak water inlet, the water pressure and the suction force of water flow enable the counter weight and the high-water-absorbing-quality resin balls connected through the series connection rope to be sucked into the leak. Water-soluble bags are dissolved through dipping in the water flow in the leak, high-water-absorbing-quality resin rapidly expands after absorbing water and is tightly combined with the wall of the leak, and a series connection type closed space is formed in the leak; and in this way, the effects of step-by-step stoppage and step-by-step sealing in the leak are achieved, and the seepage line of a dyke-dam body cannot greatly rise.

The invention provides a brewing method of raspberry liqueur and belongs to the technical field of wines and brewing methods thereof. The raspberry liqueur adopts full-juice fermentation, after fermentation is completed, grape spirit and sucrose are added, then aging is carried out, and after aging is finished, the raspberry liqueur is subjected to process treatment, filled and bottled. The raspberry liqueur has a ruby red color, the fruit fragrance is rich, the wine fragrance is mellow, the fragrance is complex and changeable, the liqueur has the fruit fragrance of raspberry and the mellow fragrance of the alcohol, the taste is mellow and full, the wine body structure is strong, and the aftertaste is lasting. The grape spirit and the sucrose are added in the brewing process, on one hand,the defects of too high acidity and poor wine body of traditional raspberry wine are overcome, on the other hand, the nutritional ingredients and beneficial substances contained in grapes are supplemented, and the drinking value of the raspberry liqueur is improved.

The invention relates to a method for preparing ethyl silicate hydrolysate capable of being stored for a long time. By means of the technical scheme, ethyl silicate and anhydrous ethanol are sequentially added into a four-mouth glass reaction flask which is provided with a mechanical stirring device, a backflow condensation pipe and a thermometer and is heated through a water bath, stirring is started, and the temperature is raised; then, concentrated sulfuric acid is added into deionized water, evenly stirred and added into the four-mouth flask dropwise for a hydrolysis reaction, and dropwise adding time is controlled to be 1-2 hours; after dropwise adding, the temperature is raised to 60-80 DEG C, the reaction continues for 2-3 hours, when the temperature is reduced to 30 DEG C or below after the reaction is finished, the mixture is filtered into a container, and is the contained is covered with a cover for sealing. The ethyl silicate hydrolysate prepared through the method can be stored for as long as 12 months at normal temperature. When the ethyl silicate hydrolysate prepared through the method serves as an adhesive and is used for solvent type inorganic zinc-rich paint, a painting film is high in drying speed, good in adhesion force and excellent in corrosion resistance.

The invention relates to the technical field of food processing, in particular to a production method of Chinese yam slice, which mainly comprises the following steps: S1, selecting materials, namelyselecting fresh Chinese yams which are not rotten and mildew-free as the materials, and washing away soil and sand grains on the outer surfaces by using flowing clear water; S2, peeling: peeling the Chinese yams by using a cutter, and cutting the Chinese yams into sections; S3, grinding the cut Chinese yams into powder, adding water and sodium polyacrylate into the powder, and performing rolling and kneading to obtain dough; S4, extruding the dough into strips, and then cutting the strips into slices; S5, flatly laying the sheet-shaped wrappers on a tray with holes, and drying the sheet-shapedwrappers in a dryer; and S6, taking out the dried Chinese yam slices, removing the crushed Chinese yam slices, naturally cooling, and quickly sealing with a food packaging bag to obtain a finished product.

The invention belongs to the technical field of adhesives, and particularly relates to a corrosion-inhibiting primer for structural bonding and a preparation method of the corrosion-inhibiting primer. The corrosion-inhibiting primer is prepared by uniformly mixing epoxy resin, a toughening agent, a curing agent, an accelerant/chromate/graphene compound, a solvent and the like. In an accelerant/chromate/graphene compound, an accelerant and chromate are simultaneously loaded on a graphene sheet layer through a hydrothermal reaction. On the premise of not influencing other properties, water molecules are prevented from invading epoxy resin and corrosion of a metal substrate is inhibited by utilizing a lamellar structure of graphene and chromate on the surface of a lamellar layer; the reaction activity of the substituted urea accelerant is reduced by utilizing the steric effect and ionic bond complexing action of graphene. The corrosion-inhibiting primer solves the problems that the primer of an epoxy resin system is poor in humidity and heat resistance and short in storage period, also has good corrosion resistance and applicability, meets the requirements of large aviation aircrafts on corrosion-inhibiting primers, and is suitable for cementing of medium-temperature curing metal bearing structures.

The invention relates to a high-modulus epoxy resin adhesive for a vehicle-mounted laser radar, which is prepared from the following raw materials in parts by weight: 5 to 15 parts of epoxy resin, 10 to 30 parts of alicyclic epoxy resin, 5 to 20 parts of toughening resin, 30 to 60 parts of filler, 0.1 to 5 parts of thixotropic agent, 0.1 to 1 part of coupling agent, 0.1 to 5 parts of photoinitiator, 0.1 to 5 parts of thermal initiator and 3 to 10 parts of fluorinated graphene. The adhesive is small in shrinkage rate, low in thermal expansion system, high in modulus, high in adhesive strength to various metal alloy materials, good in environmental reliability and capable of being subjected to UV heating dual curing, and the problem of coupling and bonding between structural parts in the field of vehicle-mounted laser radars is solved.

The invention discloses a preparation method of desertliving cistanche health wine. The preparation method comprises the following steps that desertliving cistanche, astragalus membranaceus, hawthorn,red jujube, enzyme preparation and distilled wine are mixed according to a mass and volume ratio of (9-11)kg:(4-6)kg:(2-4)kg:(1-3)kg:(0.1-0.2)kg:(12-14)L, a wine body is continuously stirred for 60-120 min, standing is carried out under a sealed state for 12 hours, and a sample is tested and identified after aseptically sampling from the wine body; the tested and qualified wine body is filtered through a diatomite filter; and the filtered wine body is subjected to filling after standing of the wine body for 12 hours is carried out. The desertliving cistanche health wine well solves the problem of short preservation period of traditional health care products, is prepared into medicated liquor to improve the drug effect, is prepared through a reasonable proportion, and has a good taste through sensory, clarification and transparent inspection.