23 results about "Polyoxyethylene lauryl ether" patented technology

The invention relates to the technical field of rice seed germination accelerating systems and methods. Seed selection is conducted, specifically, rice seeds which are full and free of damage are screened, and impurities are removed; the rice seeds are soaked in a plant growth regulator mixed solution to be subjected to oscillation treatment, the mixed solution is composed of gibberellin with the concentration being 20-50 mg / L, pimacol with the concentration being 5-15 mg / L and polyoxyethylene lauryl ether with the concentration being 0.01-0.03%, the liquid temperature is kept at 30 + / -2 DEG C, and the treatment time is 2-4 hours; gradient disinfection: primary disinfection: putting the pretreated seeds into a 0.3-0.5% hydrogen peroxide solution at the temperature of 40-50 DEG C, and stirring for 15-20 minutes; secondary disinfection: transferring to a 0.8-1.2% sodium hypochlorite solution at the temperature of 25-30 DEG C, adding a 0.05-0.1 mol / L phosphate buffer solution to adjust the pH value to 6.8-7.2, and standing for 40-60 minutes; the disinfected seeds are put into magnetized water containing 0.1%-0.3% of chitosan derivatives and 0.05%-0.15% of sodium alginate, the magnetic field intensity ranges from 300 gauss to 500 gauss, and ultrasonic waves of 30 kHz to 50 kHz are adopted for assisting permeation for 1 h to 2 h; the rice seed germination accelerating system and method are high in germination accelerating efficiency.

The invention belongs to the technical field of blocking remover preparation, and particularly relates to a chelating blocking remover for an oil field and a preparation method of the chelating blocking remover. According to the chelating blocking remover for the oil field, calcium ions and magnesium ions are removed through the synergistic effect of 1, 2-bis (2-aminophenoxy)-ethane-N, N, N ', N'-tetraacetic acid and the nitrilotriacetic acid disodium salt, aluminum ions and iron ions are removed through the synergistic effect of 1, 2-dimethyl-3-hydroxy-4-pyridone and the N, N '-ethylenediamine disuccinic acid, and the chelating blocking remover for the oil field has the advantages that the chelating blocking remover for the oil field is environmentally friendly and free of pollution. According to the present invention, potassium dihydrogen phosphate is adopted as a stabilizer, and polyoxyethylene lauryl ether sodium sulfate and sodium ricinoleate are added so as to improve the mixed scale removing effect by changing the rock surface wettability, promoting crude oil stripping and interacting with other raw materials. Due to the synergistic effect of the raw materials, the prepared chelating agent for the oil field has a very good corrosion rate on inorganic scales.

The invention provides a preparation method of printing ink and a product thereof. According to the method, 2-(2-vinyloxyethoxy) ethyl acrylate and polyoxyethylene lauryl ether are adopted to improve the leakage resistance of the bottom-covering ink; the steady-state surface tension of the ink is set to be smaller than the surface tension of the ink holding part, and the ink use efficiency is improved by increasing the difference value between the two surfaces; the surface tension of the bottom layer ink is larger than that of the surface layer ink, so that the spreading capacity of the surface layer ink during superposition printing is improved; through deoxidation treatment, the jet stability of the ink is improved; 1, 2, 2, 6, 6-pentamethyl-4-piperidyl methacrylate is adopted, so that the storage stability of the ink is improved; surface layer ink and a carbonyl-containing printing medium are isolated through bottom covering ink, black scales are peeled off through N-cyclohexyl-2-pyrrolidone, and the light resistance of surface layer ink printed matter is improved.

The present invention relates to a glass transition material for a circulating fluidized bed (CFB) and its preparation and use methods, belonging to the technical field of comprehensive utilization of CFB fly ash. The glass transition material is prepared from 85-100 parts by weight of manganese monoxide, 5-30 parts by weight of niobium nitride, 5-15 parts by weight of polyoxyethylene lauryl ether, and 15-40 parts by weight of water. During preparation, polyoxyethylene lauryl ether and water are first mixed, followed by the addition of manganese monoxide and niobium nitride, and vigorous stirring in a blender. The present invention utilizes polyoxyethylene lauryl ether to uniformly disperse manganese monoxide and niobium nitride in a coal sample. The mineralization effect of manganese monoxide and niobium nitride reduces the liquid phase formation temperature and liquid phase viscosity, increases the liquid phase ratio, and promotes the glass transition of CFB fly ash. Furthermore, nitrogen generated by the high temperature of niobium nitride creates pores, increasing the content of hollow microspheres in the CFB fly ash.

The invention discloses a bacterial endotoxin detection method of lipid nanoparticles and a demulsifier, and the detection method comprises the following steps: firstly preparing the demulsifier comprising polyoxyethylene lauryl ether, dimethyl sulfoxide and ethanol, then demulsifying a sample containing the lipid nanoparticles by using the demulsifier, and finally diluting the demulsified sample by using a diluent to obtain the bacterial endotoxin detection product. And determining the content of bacterial endotoxin. According to the invention, the solution containing polyoxyethylene lauryl ether, dimethyl sulfoxide and ethanol is used as the demulsifier of the lipid nanoparticles, the demulsification effect is good, the intracellular toxin wrapped in the demulsifier can be fully released, and the demulsifier does not influence the detection of the intracellular toxin; after the diluent is diluted, when the toxin in the cells is determined, the determination result meets the methodological requirements, and the accuracy of the detection result is ensured; in addition, the method provided by the invention is suitable for detecting different types of lipid nanoparticles.

The invention belongs to the technical field of imbibition oil extraction, and provides a water-based nano-emulsion imbibition oil displacement agent and a preparation method thereof. According to the preparation method of the water-based nano-emulsion imbibition oil displacement agent, polyoxyethylene lauryl ether, sorbitan monopalmitate, mahogany petroleum sulfonate, an oily solvent, nano silicon oxide and water are uniformly mixed through a phase transition component method to prepare the water-based nano-emulsion imbibition oil displacement agent. The preparation method of the water-based nano-emulsion imbibition oil-displacing agent can effectively improve the crude oil recovery rate of unconventional oil reservoirs.

The present invention relates to an adiponectin latex immunoturbidimetric assay kit and a preparation method thereof, comprising reagent R1, reagent R2, a calibrator, and a quality control product. Reagent R1 contains an anti-interference agent comprising polyoxyethylene lauryl ether sulfate sodium salt, with a mass content of 0.1%-0.5%; an emulsifier, with a mass content of 0.2%-1%; and triaton, with a mass content of 0.2%-1%. Compared with the prior art, the kit of the present invention has strong anti-interference ability and is applicable to testing blood samples of patients with different physical conditions, particularly capable of accurately measuring special blood samples containing a large number of interfering factors.

The invention discloses a freeze-drying protective agent for a quick one-step qPCR reagent, a freeze-drying process and application of the freeze-drying protective agent, and belongs to the technical field of molecular diagnosis. The technical problems to be solved are as follows: 1, the CT value is shifted backwards, the fluorescence signal value is reduced, and the activity and detection performance are degraded after the freeze-drying process of the existing product; 2, due to the adoption of high-content glycerol, a freeze-dried product is poor in form, easy to absorb moisture and poor in inter-batch and intra-batch stability; thirdly, a part of the protective agent inhibits the PCR reaction, and the detection performance is influenced; and 4, the conventional detection time is shortened from more than 60 minutes to 30 minutes. According to the key point of the technical scheme, the freeze-drying protective agent for the rapid one-step method qPCR reagent is provided, and the freeze-drying protective agent is prepared from the following components in parts by weight: 0.8 to 1.5 parts of polyoxyethylene lauryl ether, 2.5 to 20 parts of trehalose, 6 to 7 parts of mannitol, 0.4 to 1 part of bovine serum albumin and 0.3 to 1 part of GP32 protein.

The application belongs to the technical field of surface treatment of magnetic materials, and particularly relates to a nitric acid-free pickling solution for neodymium iron boron materials and a preparation method and application thereof, which comprises square acid, pararosolic acid, ethylenediaminetetraacetic acid, sodium polyoxyethylene lauryl ether sulfate, decyl polyoxyethylene lauryl ammonium bromide and water. The nitric acid-free pickling solution for neodymium iron boron materials provided by the application does not contain strong-smoke acid and phosphorus components, is friendly to the environment, will not produce corrosive acid mist in production and use, and is safe to operate under mild conditions. The operation process is simple, has no obvious corrosion or discoloration on the metal substrate, can effectively remove oxides, grease and impurities on the surface of the neodymium iron boron material, and maintains the quality and performance of the material.

The invention discloses an adsorptive carrier attachment separating agent for sewage treatment as well as a preparation method and application thereof, and belongs to the field of a sewage treatment process using an adsorptive carrier or solid waste treatment for adsorptive carrier treatment. The cleaning agent is prepared from the following raw materials in percentage by mass: 3.5 to 6.5 percent of polyacrylic acid, 13.2 to 17.4 percent of citric acid, 1.5 to 2.5 percent of ethylenediamine tetraacetic acid, 3.5 to 5.0 percent of polyoxyethylene lauryl ether sodium sulfate, 10.5 to 14.5 percent of N, N, N-trimethylene triphosphonic acid-ethylenediamine-N-hydroxypropanesulfonic acid, 4.0 to 9.7 percent of zinc chloride and 2.5 to 6.5 percent of fatty alcohol-polyoxyethylene ether. And the balance of solvent. The problem that an outer layer attachment is difficult to separate from an adsorption carrier in a recycling regeneration mode of biochemical sludge formed by the adsorption carrier is solved. According to the invention, green organic degradable components are adopted to construct the separating agent, and the separated liquid has corresponding biodegradability after cleaning, so that the biochemical treatment performance of various types of sewage is improved.

The application provides a hemostatic liquid auxiliary material and preparation and application thereof. The components of the hemostatic liquid dressing include phosphatidylcholine, polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer (Soluplus), polyoxyethylene lauryl ether, polyglycerol ester and an organic solvent, the weight ratio of the phosphatidylcholine, the polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer, the polyoxyethylene lauryl ether and the polyglycerol ester in the hemostatic liquid dressing is 35:(5-20):(5-20):(10-30), and the weight percentage of the organic solvent is 10%-20%. Compared with the traditional hemostatic dressing, the application does not rely on the self blood coagulation, and the physical and chemical reactions of the components are synergistically caused with the blood, so that the rapid in-situ gelation at the bleeding site is promoted, the hemostatic effect is obvious, the liquid dressing has the advantages of simple process, low cost and clear effect, and has a good market application prospect.

The invention discloses a composite protective material for a GH2132 silver-plated fastener, the composite protective material comprises a coordination agent and a sealing agent, the coordination agent comprises the following components in percentage by weight: 1.5%-3.0% of benzotriazole, 25%-40% of isopropanol, 0.08%-0.18% of sodium dodecyl sulfate, 0.3%-0.8% of sodium citrate, 0.8%-2.0% of a boric acid-borax buffer agent and the balance of deionized water; the sealing agent is prepared from the following components in percentage by weight: 6 percent to 10 percent of fatty alcohol ether, 5 percent to 9 percent of barium petroleum sulfonate, 5 percent to 15 percent of N-octadecylamine oleoyl sarcosinate, 0.5 percent to 2 percent of polyoxyethylene lauryl ether, 0.1 percent to 0.5 percent of benzotriazole sodium salt, 0.2 percent to 0.8 percent of sodium gluconate and the balance of deionized water. The protection method of the composite protection material comprises the following steps that S1, raw materials are prepared; s2, performing pretreatment; s3, carrying out coordination treatment; s4, primary water washing; s5, carrying out sealing treatment; s6, secondary water washing; and S7, drying treatment. Through double treatment of coordination and sealing, the neutral salt mist resistance time of the GH2132 silver-plated fastener is prolonged from 48 hours to 192 hours or above.

The invention provides a PEG400 composite system and a method for softening, removing and curing phenolic resin, and the PEG400 composite system comprises the following components by mass: 65-75% of PEG400, 8-12% of polyoxyethylene lauryl ether, 5-8% of hydroxyapatite nanorods, 2-3% of a pH buffer system and 5-12% of a phase change temperature control agent. According to the invention, the PEG400 composite system comprising the components is adopted to remove the cured phenolic resin of the pressing plate of the hot press, so that the three-in-one technical effect of rapid softening, lossless removal and surface protection is realized.

The invention relates to the technical field of medical examination, in particular to a lactic dehydrogenase pretreatment method and application of the lactic dehydrogenase pretreatment method in an aspartate transaminase determination reagent, purified water is added into a mixing container, a biological buffer solution, polyethylene glycol, disodium ethylene diamine tetraacetate, polyoxyethylene lauryl ether and sodium cholate are weighed and stirred to be dissolved into the mixing container, and the mixture is stirred to be uniform; adjusting the pH value to obtain a pretreatment solution; the NAD dependent-D-lactic dehydrogenase is dissolved in the pretreatment solution, after stirring and standing balancing are conducted for 15 minutes through a magnetic stirrer, insoluble substances are filtered out, the lactic dehydrogenase solution treated through the method can stably coexist with a high-salt solution, the price is low, the production cost of manufacturers is greatly reduced, and the method is suitable for industrial production. The problems that under the alkaline condition, the activity of lactic dehydrogenase is low, the enzyme dosage has to be increased, and the production cost is too high due to the fact that more expensive NAD dependent type-L-lactic dehydrogenase is used are solved.

The invention discloses a plant antibacterial liquid and a preparation method thereof, and relates to the technical field of plant antibiosis, the plant antibacterial liquid comprises the following raw materials by mass: 3-4% of a gardenia extract nano-emulsion, 3-4% of a myrobalan extract nano-emulsion, 3-4% of a scutellaria baicalensis extract nano-emulsion, 20-30% of a bio-based surfactant, 2-4% of a preservative, and the balance of water; the bio-based surfactant is an itaconic acid gemini surfactant, and is prepared from the following raw materials in parts by weight: 12 to 18 parts of polyoxyethylene lauryl ether, 0.145 to 0.218 part of p-toluenesulfonic acid, 0.011 to 0.022 part of hydroquinone, 1.12 to 1.68 parts of itaconic anhydride, 2.4 to 3.6 parts of lauric acid monoethanolamide, 5.2 to 7.8 parts of a 20 percent sodium hydrogen sulfite aqueous solution and 0.017 to 0.034 part of a phase transfer catalyst. The plant antibacterial liquid provided by the invention has excellent antibacterial activity and performance stability.

The invention belongs to the technical field of coatings, and discloses a high-temperature-resistant corrosion-resistant environment-friendly coating as well as a preparation method and application thereof. The coating comprises the following components in percentage by mass: 32%-38% of sodium silicate, 1.2%-1.8% of epoxy modified phenolic resin, 1.8%-2.3% of polyethylene glycol, 36%-41% of filler, 0.12%-0.18% of sodium polyacrylate, 0.12%-0.18% of hydroxymethyl cellulose, 0.12%-0.18% of polyoxyethylene lauryl ether, 2%-4% of a composite silane coupling agent and 32%-36% of deionized water. The filler is a composite modified filler, and after being treated by a specific composite modifier, the filler has a synergistic effect with the epoxy modified phenolic resin and the composite silane coupling agent, so that the compatibility, compactness and interface bonding force of the coating are remarkably improved. The coating has excellent high temperature resistance, corrosion resistance, thermal shock resistance and adhesive force, the preparation process is stable and controllable, and a coating prepared from the coating can stably play a protective role in a severe environment for a long time.

The invention relates to the technical field of coatings, and provides a wear-resistant and resistance-reducing coating for a pipe bracket and a preparation method thereof.The wear-resistant and resistance-reducing coating for the pipe bracket comprises a component A and a component B, and the mass ratio of the component A to the component B is (3-6): 1; the component A is prepared from the following raw materials in parts by weight: 100 parts of epoxy resin, 35 to 45 parts of diluent, 3 to 5 parts of polytetrafluoroethylene micro powder, 6 to 10 parts of modified zinc borate, 0.2 to 0.5 part of flatting agent and 0.2 to 0.5 part of defoaming agent; wherein the modified zinc borate is obtained by modifying zinc borate modified by polyoxyethylene lauryl ether carboxylic acid with epoxy group silane; the modified zinc borate is prepared from the following raw materials in parts by weight: 50 to 60 parts of zinc nitrate, 60 to 70 parts of borax, 1 to 2 parts of polyoxyethylene lauryl ether carboxylic acid and 0.5 to 0.8 part of epoxy group silane; and the component B is polyamide resin. According to the technical scheme, the problems of insufficient wear resistance and resistance reduction of the coating for the pipe bracket in the related technology are solved.

Provided are a body fluid absorbent article that absorbs body fluids that seep onto a surface material in a spot-like manner and a body fluid absorbent article whose surface material is not easily damaged during use. The body fluid absorbent article comprises a surface material (1), an absorbent body (3), and a leak-proof material (4) arranged in order from the body fluid seepage side. The surface material (1) is composed of a non-woven fabric having cotton fibers as constituent fibers and the cotton fibers interwoven with each other. The non-woven fabric is provided with an oil containing lipophilic monostearate glyceryl and polyoxyethylene lauryl ether, an oil containing stearic acid amide and hardened beef tallow, or an oil containing stearic acid amide and palm oil. The non-woven fabric is provided with cationic starch. The oil content is 0.05 to 1.5 weight % relative to the weight of the non-woven fabric. The cationic starch content is 3 to 5 weight % relative to the weight of the non-woven fabric. A fluffy non-woven fabric (2) is inserted between the surface material (1) and the absorbent body (3). The absorbent body (3) is composed of an aggregate of pulp fibers. The leak-proof material (4) is composed of a synthetic resin film.

The invention relates to the technical field of daily chemical industry, and discloses a micro-emulsified essence and a preparation method thereof, the micro-emulsified essence comprises the following components by weight: 15-35% of an oily component, 8-22% of an emulsifier, 3-12% of a co-emulsifier, and the balance of deionized water; the oily component comprises at least two components selected from citrus essential oil, peppermint oil and rose absolute oil; the emulsifying agent is prepared by compounding polyoxyethylene sorbitan monooleate and polyoxyethylene lauryl ether according to the mass ratio of (3 to 1) to (5 to 1). The stability and aroma durability of the emulsion are remarkably improved through the synergistic effect of specific oily component compounding and an emulsifier, citrus essential oil, peppermint oil and rose absolute oil in the oily component are combined in proportion, the natural polarity difference forms a complementary effect, and the emulsifying agent compounded from polyoxyethylene sorbitan monooleate and lauryl alcohol polyoxyethylene ether is combined, so that the stability and aroma durability of the emulsion are remarkably improved. The system is still kept stable under high-temperature and high-shear conditions.

The invention discloses a high-transparency antistatic polyethylene film master batch and a preparation method thereof. The master batch comprises the following components in parts by mass: 50-70 parts of a low-density polyethylene carrier, 15-25 parts of a composite antistatic agent, 5-10 parts of a compatilizer, 3-8 parts of a dispersing agent, 0.5-2 parts of an antioxidant, 1-3 parts of a lubricant and 2-5 parts of a nano reinforcing agent, the composite antistatic agent is formed by compounding glycerol monostearate and polyoxyethylene lauryl ether according to a specific proportion. The preparation method comprises the steps of raw material pretreatment, carrier pretreatment, primary mixing, melt extrusion, underwater pelletizing, centrifugal drying and screening packaging. According to the invention, the LDPE carrier is adopted to ensure perfect compatibility with a matrix, and through the synergistic effect of the composite antistatic agent and the nano reinforcing agent, the problems of poor compatibility, insufficient antistatic durability, influence on transparency and the like of the traditional master batch are solved. The film with high light transmittance and small haze can be prepared by adding 5% of the master batch into a polyethylene base material, and the film is durable and stable in antistatic effect and suitable for the field of high-end packaging.

The invention discloses reinforced universal type degreased powder and a preparation process thereof, the reinforced universal type degreased powder comprises a basic carrier material and a functional component material, the basic carrier material comprises anhydrous sodium sulfate and sodium bicarbonate, and the functional component material comprises a surface active material, an enzymolysis degreasing material, an alkaline slow-release material, an oxidation carbon deposition treatment material and an auxiliary additive, the surface active material is prepared from rhamnolipid, APG (alkyl polyglucoside), PFBS (perfluorooctane sulfonate), polyether modified trisiloxane, cocamidopropyl betaine and polyoxyethylene lauryl ether. The whole degreasing powder can achieve targeted cracking of the pain point that stubborn oil stains are difficult to decompose, raw materials for sensitive characteristics of aluminum alloy / titanium alloy are optimized, and the degreasing powder which is thorough in stubborn oil stain degreasing, free of damage to sensitive materials, stable in long-term storage, environmentally friendly and compliant is achieved; through the preparation process of double-enzyme coating, silicon-based cooperation and double-cavity isolation, an efficient, safe and stable brand-new solution is provided for degreasing of the metal precision component.

The invention relates to the technical field of scribing cleaning fluid, in particular to efficient and stable semiconductor wafer scribing cleaning fluid and a preparation method thereof.The efficient and stable semiconductor wafer scribing cleaning fluid is prepared from, by weight, 1-5% of polyethylene glycol, 1-5% of sodium hydroxide, 1-5% of sodium hydroxide, 1-5% of sodium hydroxide and the balance water. 8 to 10% of polyoxyethylene lauryl ether; 1.5 to 2% of a nonionic surfactant; 0.5-1% of a pH regulator; 0.05 to 0.08% of a preservative; and the balance of ultrapure water.

The invention relates to the technical field of polyester fibers, and discloses a preparation method of flame-retardant hydrophilic polyester fibers, which comprises the following steps: S1, preparing flame-retardant hydrophilic master batch; s2, under the protection of nitrogen, carrying out melt blending, extrusion and granulation at 245-255 DEG C; s3, mixing the master batch with conventional polyester chips according to the mass ratio of 1: (5-8), melting by a screw extruder, and controlling the temperature of three areas; s4, spinning the melt through a composite spinneret plate; s5, the fibers are soaked in a sulfonic acid group surfactant aqueous solution; and S6, drying and shaping. Through dynamic adsorption regulation and control of a sulfonic acid group surfactant compound system and in combination with the diffusion enhancement effect of polyoxyethylene lauryl ether, the lasting effects that the flame-retardant retention rate is larger than or equal to 95% and the grafting density attenuation rate is smaller than or equal to 5% after 50 times of washing are finally achieved, synchronous enhancement of flame retardance and hydrophilicity is achieved, and the service life of the product is prolonged.