39results about How to "Not easy to oxidize and decompose" patented technology

The invention discloses a water soluble polyurethane associative thickener, and an inverse polymerization method and use thereof. The method comprises: dehydrating polyethylene glycol by using an organic solvent with a boiling point below 110 DEG C; adding diisocyanate in the protection of an inert gas to perform a reaction; adding fatty alcohol of which the chain is 8 to 22 carbon atoms long as a capping agent for further reaction; adding polyol containing at least three hydroxys as a chain extender to perform an reaction till there are no free isocyanate groups; and adding water, and removing the organic solvent by an azeotropic process to obtain the water soluble polyurethane associative thickener which is white, transparent and sticky fluid. The dehydration temperature of water soluble associative polyurethane is low, so the side reactions are inhibited effectively; and reaction is performed in the organic solvent and catalyst is not required, so cost is reduced and the hydrolysis side reaction of the product due to the catalyst is avoided. Because the polyol is used as a chain extender, the thickener of the invention has a branch structure and high thickening performance.

The invention discloses an extracting method of mango seed essential oil and application thereof in refreshment of pitaya. The extracting method of the mango seed essential oil comprises the following steps: drying, pulverizing, microwave pretreatment, super-critical CO2 extraction and two-stage molecular distillation. Mango seed crude essential oil obtained by super-critical CO2 extraction is subjected to second-stage molecular distillation to obtain mango seed essential oil, and the mango seed essential oil extracted by the extracting method of the mango seed essential oil is high in purity and small in purity. The mango seed essential oil is applied to refreshment of the pitaya, bacteria on the surface of the pitaya, inside the pitaya and in a storage environment can be killed, bacteria attack is prevented effectively, meanwhile, the mango seed essential oil has effects of resisting oxidation and clearing free radicals of the pitaya, brown stain of the pitaya is inhibited, melanin is inhibited, meanwhile, procyanidine in the pitaya can protect a fresh-keeping film of the pitaya against being decomposed, by the fresh-keeping film, the consumption speed of nutrients of the pitaya is reduced, rot and deterioration of the pitaya is slowed down, and the shelf life of the pitaya is prolonged.

The invention relates to a method for preparing bio lubricants through catalytic hydrogenation of biodiesel. The method comprises the following steps of enabling the biodiesel to be in contact with a catalytic hydrogenation catalyst under the condition of a catalytic hydrogenation reaction so as to generate a hydrogenation saturation reaction and an ester-interchange reaction, and enabling reaction effluents to be subjected to reduced pressure distillation, so as to obtain bio lubricant components. The catalytic hydrogenation catalyst contains a copper compound, a zinc compound and aid components which can be selectively added, wherein the aid components are selected from one or more of aluminum compounds, zirconium compounds, magnesium compounds, and chromium compounds. Through the adoption of the method provided by the invention, the bio lubricant components with stable performance can be obtained. The method provided by the invention is simple in technology, and target products are good in selectivity and high in yield. In addition, the bio lubricant components are from the biodiesel prepared from animal and vegetable fat or waste fat and have favorable biodegradability.

The invention aims to disclose a processing method of dry noodles, in which eucommea leaves are capable of being effectively utilized and reducing eucommea rubber, and the dry noodles are low in cost and rich in active substances such as geniposidic acid, and aucubin and nutrient substances such as amino acid, and glucose; the dry noodles can be widely applied to the diet for preventing and treating the high blood pressure. The eucommea leaves are extracted by using an ethanol solution and acid water to obtain an eucommea ethanol extract and an eucommea water extract, then, dry flour is dissolved by using water to form a flour emulsion, and finally, the dry eucommea noodles are obtained through the steps of embedding, vacuum degassing, curing, tabletting and the like. The dry eucommea noodles produced by the invention contain part of chlorogenic acid which is beneficial to the antivirus and diuresis of human bodies and is also beneficial to the storage of the dry noodles; the ultrasonic treatment is adopted so as to be beneficial to the rapid permeability of effective ingredients in the eucommea leaves into a reticular structure of starch and relatively beneficial to the reservation of the effective ingredients; an eucommea leaf extract is added into the flour, so that the influence of the eucommea rubber in eucommea barks to the dry noodles can be completely eliminated.

The invention discloses a novel amoxicillin sodium compound. The purity of the amoxicillin sodium compound is more than 99%, the specific rotation of the amoxicillin sodium compound is between +260 degrees and +280 degrees. The invention also discloses a composition of the amoxicillin sodium compound and the sulbactam sodium compound, which comprises the following components in parts by weight: 50-100 parts of amoxicillin sodium, 25-50 parts of sulbactam sodium, 3-9 parts of vitamin C, 1-6 parts of proline, and 2-8 parts of nicotinamide. According to the composition of the amoxicillin sodium compound and the sulbactam sodium compound, the vitamin C, the proline and the nicotinamide are taken as stabilizers and play synergistic effect so as to improve the stability of the composition of the amoxicillin sodium compound and the sulbactam sodium compound effectively, the composition can be prepared into stable injection which is not easy to deteriorate due to oxygenolysis after being laid for a period, and the injection does not need to be prepared when being used, thus being convenient to use.

The invention provides a linolenic acid-carnosine composite. The structural general formula of the composite molecule is His-Ala-C(0)(CH2)6(CH=CHCH2)3CH2CH3. By utilizing the linolenic acid-carnosine composite prepared by the scheme of the invention, the problem that carnosine and linolenic acid are unstable can be effectively solved, linolenic acid has less possibility of losing efficacy caused by oxidization and decomposition; and carnosine has less possibility of being degraded and separated by carnosinase and the biological stability of carnosine can be increased.

The invention discloses a high-simulation decorative board and a production process thereof, belonging to the field of building boards. High simulation decorative board, including substrate, first primer layer, putty powder layer, second primer layer, sub-film adhesive layer, intermediate paint layer and fluorocarbon coating; first primer layer, putty powder layer, second A primer layer, an undercoat layer, an intermediate paint layer and a fluorocarbon coating are sequentially arranged on the base plate; the undercoat layer has a desired pattern for transfer printing. The production process of high-simulation decorative boards, the steps include: a. rolling primer on the surface of the substrate to form a primer layer; b. rolling putty powder to form a putty powder layer; c. rolling a second primer to form a second Primer layer; d, roll coat the film under glue to form the film under the glue layer, and then transfer the pattern on the transfer film to the film under the glue layer by thermal transfer method; e, roll coat the intermediate paint to form the middle Paint layer; f, roll coating fluorocarbon coating to form a fluorocarbon coating. The high-simulation decorative board and its production process produce a high-simulation decorative board with high-simulation patterns, low manufacturing cost and environmental protection.

The invention provides a vacuum oil filtering method of natural ester insulating oil for a transformer, belonging to the technical field of transformer manufacturing processes. The method comprises the following steps that: a first container and a second container are arranged, and realizes mutual communication through gas pipes; an oil filtering mechanism for heating and filtering the natural ester insulating oil is arranged; a nitrogen mechanism for filling nitrogen into the gas pipes and discharging nitrogen is arranged; the pressure of nitrogen in the first container and the second container is kept stable; and the oil filtering mechanism and the nitrogen mechanism are started so as to allow the natural ester insulating oil in the first container or the second container to flow to theoil filtering mechanism and the temperature of the natural ester insulating oil to meet oil filtering requirements. The vacuum oil filtering method of the natural ester insulating oil for the transformer, provided by the invention, has the technical effects of high heating temperature and difficult oxygenolysis of the natural ester insulating oil, oxygen isolation and high oil filtering efficiency.

The invention discloses a novel cefmetazole compound, which has the purity greater than 99.5%. The invention further discloses a medicine composition of the cefmetazole compound. The medicine composition comprises the following components in part by weight: 60 to 90 parts of cefmetazole, 0.5 to 2 parts of mannitol, 2 to 7 parts of citrulline, and 1 to 5 parts of sodium citrate. The mannitol, the citrulline, and the sodium citrate contained in the medicine composition can work together to greatly improve light stability and heat stability of cefmetazole medicine composition, the cefmetazole medicine composition is less susceptible to oxygenolysis, and the probability of side effect of cefmetazole is effectively reduced.

The invention relates to the field of lithium batteries, and discloses a carbamate compound for a non-aqueous electrolyte and application of the carbamate compound. The carbamate compound according to the present invention has the following advantages: (i) excellent electrochemical stability, which is not oxidized even at a high voltage; (ii) the conductivity of the electrolyte can be improved, the affinity of molecules to the metal oxide positive electrode material can be enhanced, and the infiltration efficiency of the electrolyte can be further improved; (iii) the contact angle of molecules on the surface of a positive electrode or a negative electrode is reduced, and the wetting effect is improved.

The invention discloses a composite metal cysteamine chelate and a preparation method and application thereof. The preparation method comprises the steps of enabling cysteamine hydrochloride to dissolve in water, adding metal salt or a metallic compound, performing uniform stirring, adjusting pH value to be 10-11, performing a heating reaction, and performing filtration so as to obtain a cysteamine metal chelate; and enabling the cysteamine metal chelate to be dispersed in ethanol, adding ethyl orthosilicate, performing stirring until a system is turbid, adding N,N-dimethyldodecylamine and (3-chloropropyl)trimethoxysilane, performing a heating reaction, performing filtration, performing washing, and performing drying so as to obtain the composite metal cysteamine chelate. A trace metal element is chelated with cysteamine, an SiO2 coating layer is subjected to in situ deposition at the outer layer of the chelate, and through cooperation with modification of quaternary ammonium salt at the surface, stability and bacterial inhibition are increased, the storage life of a feed is prolonged, mildew and rot of the feed are prevented, and the composite metal cysteamine chelate has equivalent application value.

The invention discloses a method of curing nanometer resveratrol through gellan gum microspheres and belongs to the field of resveratrol. According to the method, the gellan gum microspheres are made first, the surfaces of the gellan gum microspheres are treated, an emulsification method is used for making nanometer resveratrol particles with stable physicochemical properties, and the surfaces of the gellan gum microspheres are loaded with the nanometer resveratrol particles. As a result, resveratrol has a hydrophilic function and is not prone to oxygenolysis, the loading rate of resveratrol on the surfaces of the gellan gum microspheres is high, and agglomeration will not occur.

The invention discloses a novel amoxicillin sodium compound. The purity of the amoxicillin sodium compound is more than 99%, the specific rotation of the amoxicillin sodium compound is between +260 degrees and +280 degrees. The invention also discloses a composition of the amoxicillin sodium compound and the sulbactam sodium compound, which comprises the following components in parts by weight: 50-100 parts of amoxicillin sodium, 25-50 parts of sulbactam sodium, 3-9 parts of vitamin C, 1-6 parts of proline, and 2-8 parts of nicotinamide. According to the composition of the amoxicillin sodium compound and the sulbactam sodium compound, the vitamin C, the proline and the nicotinamide are taken as stabilizers and play synergistic effect so as to improve the stability of the composition of the amoxicillin sodium compound and the sulbactam sodium compound effectively, the composition can be prepared into stable injection which is not easy to deteriorate due to oxygenolysis after being laid for a period, and the injection does not need to be prepared when being used, thus being convenient to use.

The invention aims to disclose a processing method of dry noodles, in which eucommea leaves are capable of being effectively utilized and reducing eucommea rubber, and the dry noodles are low in cost and rich in active substances such as geniposidic acid, and aucubin and nutrient substances such as amino acid, and glucose; the dry noodles can be widely applied to the diet for preventing and treating the high blood pressure. The eucommea leaves are extracted by using an ethanol solution and acid water to obtain an eucommea ethanol extract and an eucommea water extract, then, dry flour is dissolved by using water to form a flour emulsion, and finally, the dry eucommea noodles are obtained through the steps of embedding, vacuum degassing, curing, tabletting and the like. The dry eucommea noodles produced by the invention contain part of chlorogenic acid which is beneficial to the antivirus and diuresis of human bodies and is also beneficial to the storage of the dry noodles; the ultrasonic treatment is adopted so as to be beneficial to the rapid permeability of effective ingredients in the eucommea leaves into a reticular structure of starch and relatively beneficial to the reservation of the effective ingredients; an eucommea leaf extract is added into the flour, so that the influence of the eucommea rubber in eucommea barks to the dry noodles can be completely eliminated.

The invention discloses a synthesis method of rhodium(triphenylphosphine)carbonylacetylacetonate.The method includes the steps of conducting backflow reaction on rhodium chloride trihydrate and a triphenylphosphine solution to prepare triphenylphosphine rhodium chloride, mixing prepared triphenylphosphine rhodium chloride with N,N-dimethylformamide under the protection of nitrogen, then adding acetylacetone, conducting backflow heating reaction, cooling to the room temperature, concentrating a solution, adding icy water, standing, separating out crystals, conducting filtering, washing filter cakes with water, and conducting vacuum drying to obtain rhodium(triphenylphosphine)carbonylacetylacetonate.By means of the new synthesis method, intermediates are replaced with triphenylphosphine rhodium chloride capable of being stably stored in air, the step-by-step yield and once through yield of the product are increased, and benzene and alkane type toxic solvent are not used; by means of environment-friendly type solvent ethyl alcohol, production cost is reduced, and remarkable economic and environment advantages are achieved.

The invention discloses a method of curing nanometer resveratrol through gellan gum microspheres and belongs to the field of resveratrol. According to the method, the gellan gum microspheres are made first, the surfaces of the gellan gum microspheres are treated, an emulsification method is used for making nanometer resveratrol particles with stable physicochemical properties, and the surfaces of the gellan gum microspheres are loaded with the nanometer resveratrol particles. As a result, resveratrol has a hydrophilic function and is not prone to oxygenolysis, the loading rate of resveratrol on the surfaces of the gellan gum microspheres is high, and agglomeration will not occur.

The invention relates to the technical field of ramie treatment after degumming and discloses nonionic emulsified oil. The nonionic emulsified oil comprises, in percentage by weight, the raw materialsof 5%-15% of vegetable oil, 6%-12% of polyethylene isobutene ether, 4%-10% of polyether, 3%-8% of ester oil, 2%-6% of an antioxidant, 2%-5% of an emulsifying agent, 1%-3% of a dispersing agent, 1%-3%of a penetrating agent, 0.5%-1% of a softening agent, 0.5%-1% of an antistatic agent and the balance of deionized water. A preparation method of the nonionic emulsified oil comprises the steps of (1)preparing a first solution; (2) preparing a second solution; and (3) preparing the nonionic emulsified oil. According to the preparation method, the emulsified oil which has high thermal oxidation stability and is easy to dry can be prepared according to a corresponding raw material ratio and a corresponding preparation technology.