31results about How to "Not prone to degradation" patented technology

The invention relates to a fabric non-water dyeing method. The method comprises the following steps: pre-mixing a nonionic surfactant and a co-surfactant, dissolving the mixture into an organic solvent to prepare a reversed micelle solution; slowly adding an active dye solution into the reversed micelle solution, at the same time, stirring the solution until the turbid reversed micelle solution becomes clear to obtain a reversed micelle encapsulated active dye solution; soaking fabrics in the reversed micelle encapsulated active dye solution, vibrating the dye solution continuously to carry out adsorption dyeing at a constant temperature until a balance of adsorption dyeing is reached; adding a color fastening agent solution to obtain reversed micelle encapsulated fastening agent solution; and vibrating the solution continuously so as to fix the color of fabrics at a constant temperature. The fabrics are dyed by a one bath method based on a nonionic surfactant. The cost is reduced, and the dyeing effect is guaranteed. At the same time, an organic solvent is taken as the medium; the using amount of water is reduced, moreover, the organic solvent can be recovered effectively, and the environmental pollution is reduced.

The invention discloses a method for preparing insect-proof nets. The method includes mixing polyethylene, polylactic acid, PET (polyethylene terephthalate), coupling agents and compatilizers with one another, melting the polyethylene, the polylactic acid, the PET, the coupling agents and the compatilizers at the temperatures of 170-210 DEG C to obtain mixtures, placing the obtained mixtures in an extruder and heating, extruding and smashing the mixtures to obtain mixture powder; heating the obtained mixture powder, photosensitive color-changing agents, insect repellent agents, nanometer titanium dioxide and magnesium stearate until the temperatures of the mixture powder, the photosensitive color-changing agents, the insect repellent agents, the nanometer titanium dioxide and the magnesium stearate reach 160-180 DEG C, shearing the mixture powder, the photosensitive color-changing agents, the insect repellent agents, the nanometer titanium dioxide and the magnesium stearate at the high speeds of 2000-3000 rpm for 20-30 min to obtain mixtures, cooling the mixtures, then feeding the mixtures into the extruder and heating and extruding the mixtures to obtain master batch; carrying out wire drawing on the master batch to obtain the insect-proof nets. The method has the advantages that the insect repellent rates of the insect-proof nets prepared by the aid of the method can reach 91%, the insect killing rates of the insect-proof nets can reach 83%, the repellent rates can reach 62% after the insect-proof nets are washed by 50 times, and the killing rates can reach 37% after the insect-proof nets are washed by 50 times; the light transmittance of the insect-proof nets is 78%, and the flexibility of the insect-proof nets can reach 80.2 Mpa.

The invention discloses a doxycycline long-acting injection which has the formula as follows: 5g to 20g of doxycycline, 10g to 60g of propylene glycol, 2g to 4g of MgCl2, 0.2g to 0.5g of Na2S2O5, and water used for injection. The preparation method comprises the following steps: 1. the doxycycline is added into the propylene glycol to obtain a solution (1); 2. the doxycycline hydrochloride, the MgCl2 and the Na2S2O5 are taken and dissolved in the water used for injection to obtain a solution (2); 3. the solution (2) is slowly added into the solution (1) and stirred while being added, and ethylene diamine is used for regulating the pH value to be 7.5 to 8.5; and 4. the water used for injection is added till the total volume reaches 100ml, and filtering, encapsulation and flowing steam sterilization at the temperature of 100 DEG C for 30min are carried out to obtain the finished product. The doxycycline long-acting injection has the advantages of less dosage, long half-life period, less adverse reaction, and the like.

The invention provides a solar rear panel, which comprises a base layer, a weather-proof layer and a coating layer, wherein the weather-proof layer is compounded on one side of the base layer, the coating layer is composited on the other side of the base layer, and the base layer is obtained by means of cross-linking and curing polyolefin under the action of curing accelerators. The invention further provides a production method for the solar rear panel, and the polyolefin and the curing accelerators are cured into a film and then cross-linked to obtain the solar rear panel. The solar rear panel has fine aging resistance and chemical stability, and is not easy to hydrolyze or degrade, so that the obtained solar rear panel is not easy to crack, fine insulating property, humidity and heat resistance and aging resistance can be constantly kept, and the risk of component failure is reduced. Performance testing results indicate that the breaking strength retention rate of the solar rear panel is higher than 70% when the solar rear panel produced by the production method is exposed in an ultraviolet condition for 2000 hours, and the breaking strength retention rate of the solar rear panel is higher than 80% when the solar rear panel is exposed in an accelerated aging environment for 2000 hours.

The health-care product using vitamins and mineral components as main raw material for middle-aged and old people contains the following components (wt%):vitamin B6: beta-carotene:folic acid: calcium, iron:zinc:selenium=0.05-0.2:25-100:0.00125-0.005: S-12: 0.25-1:0.25-1:0.25-1:0.05-0.6:0.03-0.15:100-400:2-8: 2-8:0.006-0.025. Its preparation method includes the following steps: embedding, mixing, granulating, tabletting, checking and packaging, etc.

The invention relates to the field of medicines, and particularly discloses an ultrasonic contrast agent with ultra-long duration time and a preparation method of the ultrasonic contrast agent. The contrast agent has the advantage that the contrast duration time for the organs such as the liver, the kidney and the spleen reaches 2 hours or a longer time, the longest duration time can reach 6 hours or a longer time, and the ultrasonic contrast agent belongs to the contrast agent with the longest ultrasonic contrast duration time in the micro-bubble type ultrasonic contrast agents reported at present. In addition, the preparation process of the contrast agent is simple and controllable, the large-scale production can be easily realized, the production raw materials are injectable medicinal auxiliary materials which are approved at present, and thus the clinical application prospect is broad.

The invention relates to a humidifying and oxygen-generating device. The humidifying and oxygen-generating device comprises a machine frame and an electrostatic negative-high-voltage line coil installed inside the machine frame. The machine frame is in a cuboid shape. The top face of the machine frame is provided with an air inlet. Indoor air enters the humidifying and oxygen-generating device from the air inlet. A metal filtering net is arranged on one side of the air inlet. An electrostatic dust collector is arranged below the metal filtering net. A negative ion generator and an ozone generator are sequentially arranged below the electrostatic dust collector. The oxygen distributing instrument is easy to operate, environmentally friendly, removes calcium ions and magnesium ions in water through a molecular sieve evaporating technology, washes air through a water curtain and can conduct humidification, filter off germs, dust and particles in the air and purify the air at the same time; and then, wet and clean air is fed into a room through an air drive device, and therefore the environmental humidity and cleanness degree are improved.

The invention relates to an inorganic salt type carbon dioxide absorbent and belongs to the field of gas separation and purification. The absorbent is prepared from amino acid salt, ionic liquid, ammonia water and a stabilizer, wherein the amino acid salt is potassium salt or sodium salt of amino acid, the melting point of the ionic liquid is greater than 5 DEC below zero, guarant viscosity is (40DEG C) is smaller than 20 centipoise and the mass content is 10 to 45 percent. By utilizing the ultralow vapor pressure of the inorganic salt absorbent, volatile loss in the operation of the inorganic salt absorbent is greatly reduced, and further the operating cost is greatly reduced. In addition, the absorbent has the advantages of environment friendliness, low possibility of degradation and capability of greatly prolonging the service life; the absorbent is suitable for a variety of gas sources, and is equally effective for a carbon dioxide gas source with higher oxygen content.

The invention relates to a strengthened fusion protein of an anticancer drug lidamycin, i.e. mIL3-LDM from mutated I131L and F132L, and a coding gene thereof. The invention also relates to a genetic engineering construction method of the fusion protein and application of the strengthened fusion protein.

The invention relates to a vitamin and mineral nutrient supplement for middle-aged and elderly people, in particular to a nutrient supplement using various vitamins and minerals as main components, solving the problem that various nutrients can not be mutually promoted to be absorbed and utilized because of unreasonable composition, matching proportion and use dosage of various nutrients in the traditional nutrient supplement. The vitamin and mineral nutrient supplement contains various nutrients and minerals in percentage by mass: 0.075 percent of vitamin A, 30 percent of vitamin C, 0.00125 percent of vitamin D, 5 percent of vitamin E, 0.3 percent of vitamin B1, 0.3 percent of vitamin B2, 0.3 percent of vitamin B6, 0.075 percent of beta-carotene, 0.05 percent of folate, 150 percent of calcium, 2 percent of iron, 2 percent of zinc and 0-0.015 percent of selenium. The nutrient supplement is prepared by the steps of embedding, mixing, pelletizing, tableting, detecting and packaging. The invention is mainly used as the micro nutrient supplement for the middle-aged and elderly people.

The invention belongs to the technical field of photovoltaic cells and relates to a packaged photovoltaic cell component and a preparation method thereof. The component sequentially comprises a covering layer, a transparent conductive film layer, an adhesive upper layer, a photovoltaic cell, an adhesive lower layer and a substrate layer from top to bottom; and the adhesive upper layer is an improved ethylene-vinyl acetate copolymer thin film layer. The preparation method comprises the following steps: fully and uniformly mixing aluminum oxide and a coupling agent according to the part by weight, drying at a temperature of 80 DEG C, grinding and dispersing and adding in a mixture of a curing agent and EVA pellets; then adding anthriscus sylvestris ethyl ether and uniformly mixing; and pouring the mixture into an extruder for blending extrusion. Compared with the prior art, the packaged photovoltaic cell component provided by the invention has the benefits that through mixing the anthriscus sylvestris ethyl ether into a vinyl-vinyl acetate copolymer, the adhesive upper layer is not easy to degrade when meeting with light with a wavelength of more than 280 nm, so that the degradationwavelength range of the vinyl-vinyl acetate copolymer is shortened; and moreover, the anthriscus sylvestris ethyl ether can also improve the initial adhesive strength of an adhesive.

The present invention relates to the crystal form of the salt of compound (I) and its preparation method and application. The new crystal forms CS7, CS9, CS1 and CS3 provided by the present invention have low hygroscopicity, good stability, high purity, low degradation, high solubility and good mechanical stability. It provides new and better options for the preparation of drugs containing compound (I), and is of great significance for drug development.