2616 results about "Dodecyl sulfate" patented technology

A system for delivering a chemical agent in the form of a spray or foam, which in a preferred embodiment involves the use of an aerosol dispenser to deliver a formulation containing both an anionic surface active agent such as sodium lauryl sulfate as a foaming agent and a chemical agent such as either hydrogen peroxide as a disinfecting chemical agent or natural sea water.

The invention discloses a preparation method of a graphene-carbon nanotube compound film based on a three-dimensional network appearance. The method comprises the step of: transferring and stamping graphene and a carbon nanotube onto glass, a tantalum sheet, a silicon chip, a stainless steel plate or a polyethylene glycol terephthalate substrate in the mass ratio (1-10):1 through spraying deposition or vacuum suction filtration, wherein the grapheme is graphene oxide prepared by using an improved Hummers method; and a preparation method of a carbon nanotube solution comprises the following steps of: mixing acids; dispersing surfactants such as sodium lauryl sulfate, sodium dodecyl benzene sulfonate and hexadecyl trimethyl ammonium bromide in an auxiliary way, and the like. The graphene-carbon nanotube compound film prepared by adopting the method has the advantages of adjustable transmission and surface resistance, high uniformity, high stability, simple preparation method process and the like, and can be loaded on a rigid substrate as well as a flexible substrate.

The invention relates to a preparation method and an application of a selenium-enriched foliar fertilizer. The preparation method comprises the steps as follows: the selenium-enriched foliar fertilizer is prepared by sodium selenate, sodium selenite, fulvic acid, urea, compound sodium nitrophenolate, SDS (sodium dodecyl sulfate) and the balance water; and the sodium selenate and the sodium selenite are taken as donors of selenium, the fulvic acid is taken as a chelating agent, the compound sodium nitrophenolate is taken as a plant growth regulator, and the fertilizer is compounded by adding the plant growth regulator compound sodium nitrophenolate and the urea and the SDS. The selenium-enriched foliar fertilizer is mainly used for crops such as wheat, corn, tomatoes, muskmelons, sugar beet, red dates, walnuts, apples, bergamot pears and the like, and can provide the selenium element for the crops and improve the selenium contents in the crops. The selenium contents of the crops are improved by 128.6-275.0% while compared with those of crops without using the selenium-enriched foliar fertilizer.

The invention belongs to the technical field of conducting adhesive preparation and particularly relates to a preparation method of a graphene filling isotropic high-performance conducting adhesive. Graphene prepared in a ball-milling mode is adopted as a conducting filler, surface active agents including sodium dodecyl sulfate or silane coupling agent KH550 and the like are adopted to process the graphene to enable the dispersion degree of the graphene in the conducting adhesive to be increased, and the prepared high-performance conducting adhesive can be widely applied to the electronic packaging industry and has extremely remarkable effects.

A detergent composition is provided, which contains a) anionic surfactant which is 0.1%-20% of total weight of the composition, wherein the mentioned anionic surfactant is selected from fatty alcohol - polyoxyethyleneether sulfate series, dodecyl sulfate series, secondary alkane sulphonate series and group formed by their mixture; b) nonionic surfactant which is 0.1%-30% of total weight of the composition; c) citrus essential oil which is 0.01%-3% of the total weight of the composition; and d) equilibrium amount of water. The other aspect of the invention is to provides a dirt cleaning method from substrate, which includes a step of contacting substrate with mentioned detergent composition in liquid and/or gaseous phase (or putting the substrate into the composition).

The invention relates to a textile water-based pigment printing binding agent and a preparation method. The textile water-based pigment printing binding agent is prepared in a way that acrylonitrile, ethyl acrylate, butyl acrylate, crylic acid, hydroxyethyl methacrylate, acrylamide, sodium dodecyl sulfate, alcohol dodecyl polyoxyethylene (10) ether, deionized water, ammonium persulfate and sodiumhydrogen sulfite are subjected to emulsion polymerization and then are mixed with pyrolysis closed polyurethane crosslinking agent according to proportion. The product is cured in low temperature condition, has remarkable advantages in the aspects of dry rubbing fastness, wet rubbing fastness, soaping fastness and the like, is simple and easily-controllable in production operation, and is energy-saving and environment-friendly.

The invention discloses concrete with the functions of crack resistance and infiltration resistance. The concrete comprises the following raw materials in part by weight: 70-100 parts of cement, 400-500 parts of macadam, 50-70 parts of river sand, 40-50 parts of fly ash, 30-60 parts of mine residues, 5-20 parts of coal slack, 20-50 parts of basalt fibers, 5-15 parts of polypropylene fibers, 5-20 parts of glass fibers, 6-13 parts of expanded perlite, 20-80 parts of nanometer silicon dioxide, 5-15 parts of nano calcium carbonate, 1-3 parts of sodium dodecyl sulfate, 3-6 parts of zinc stearate, 2-5 parts of zinc borate, 3-7 parts of sodium citrate, 0.5-1.4 parts of acetyl tributyl citrate, 0.7-1.3 parts of diethylenetriamine, 3-10 parts of a water reducing agent, and 80-100 parts of water. The concrete disclosed by the invention has the advantages of good crack resistance, excellent infiltration resistance and good durability.

The invention discloses a textile deepening agent and a preparation method thereof. The textile deepening agent comprises the following steps of: 1) mixing nano silica, a silicane coupler and alcohol, and reacting for 16-30 hours at a temperature of 10 DEG C to 35 DEG C to obtain silicane coupler modified nano silica solution; 2) using methyl methacrylate to displace alcohol, adding butyl acrylate, hexadecane and water, after uniformly mixing, mixing with dodecy sodium sulfate water solution, and obtaining emulsion after the mixture is dispersed; and 3) under the protection of protective gas, increasing a temperature of the emulsion to 50 DEG C to 90 DEG C, adding potassium peroxydisulfate water solution, initiating a polymerization reaction, and obtaining the textile deepening agent after reacting for 2-4 hours at the temperature of 50 DEGC to 90 DEG C. The preparation method is simple, is easy to implement, and is easy to be applied in the industrialized large-scale production. The invention further discloses a textile deepening agent, a silica particle is connected with a polymer through the surface silicane coupler, so that the coloring efficiency of a dye is increased, a color of dyeing textile is deepened, and the textile is provided with a remarkable washing resistant property.

The invention discloses foam concrete and a method for preparing the same. The foam concrete comprises, by weight, 80 parts of cement, 20 parts of fly ash, 1.25 parts of coagulants, 0.35 part of waterreducing agents, 0.4 part of fibers, 3.5 parts of admixtures, 0.025 part of foam stabilizers, 10 parts of foaming agent solution and 50 parts of water. SDS (sodium dodecyl sulfate), APFA (animal protein foaming agents) and water with certain proportions are mixed with one another to obtain the foaming agent solution, foam is prefabricated by the aid of air compressors, then the foam and cement slurry are mixed with one another, and the foam concrete can be prepared under the conditions of the stirring water temperature of 22.5-45 DEG C, the secondary stirring time of 10-75 s and the foam mixing amount of 2250-2875 ml. The foam concrete and the method have the advantages that the foaming agents of the novel foam concrete are easy to manufacture and operate and low in manufacturing cost, and accordingly the foam concrete is low in input and energy consumption and reliable in quality and can be applied to energy-saving buildings and prefabricated buildings.

The invention relates to an equipment cleaning agent which is used in the field of petroleum and chemical industry, in particular to a ferrous sulfide dirt neutral complexing cleaning agent which is used for washing a synthesized ammonia low-temperature methanol washing unit system in the petroleum chemical industry and the coal chemical industry. The ferrous sulfide dirt neutral complexing cleaning agent is prepared from the following raw materials in parts by weight: 5 to 8 parts of sodium gluconate, 7 to 11 parts of sodium salicylate, 20 to 26 parts of gadoliniam diethylene triamine pentaacetic acid, 20 to 26 parts of sodium ethylene diamine tetracetate, 40 to 46 parts of propenoic acid-itaconic acid copolymer, 25 to 32 parts of disodium polyepoxysuccinicate, 12 to 15 parts of sodium hydroxyphenylace, 3 to 7 parts of triethanolamine, 3 to 7 parts of hydrogen peroxide, 0.1 to 0.3 part of lauryl sodium sulfate, 0.1 to 0.3 part of polydimethyl siloxane fluid and 40 to 45 parts of water. The ferrous sulfide dirt neutral complexing cleaning agent is free from generating hydrogen sulfide when cleaning the ferrous sulfide dirt and corroding the equipment and has strong capacity for complexing the iron ions, the removal speed is fast, the decontamination rate is more than 98 percent, the neutralization and passivation are unnecessary to carry out after the chemical washing, and the equipment can be put into operation immediately.

The invention provides a heavy metal cadmium, lead and arsenic compound contaminated soil restorative agent. The heavy metal cadmium, lead and arsenic compound contaminated soil restorative agent is prepared from the following components in percentage by weight: 30-50 percent of biomass charcoal, 5-10 percent of diatomite, 5-10 percent of sodium bentonite, 5-10 percent of activated aluminum oxide, 10-20 percent of dithiocar-bamate, 5-10 percent of ethylenediaminetetraacetic acid, 5-10 percent of tartaric acid, 5-10 percent of polyacrylamide and 5-10 percent of sodium dodecyl sulfate. A preparation method for the heavy metal cadmium, lead and arsenic compound contaminated soil restorative agent comprises the following steps: mixing the biomass charcoal, diatomite, sodium bentonite, activated aluminum oxide, ethylenediaminetetraacetic acid, tartaric acid, polyacrylamide and sodium dodecyl sulfate in mass proportion to obtain a mixture; and adding the dithiocar-bamate into the mixture in corresponding mass proportion to sufficiently mix uniformly, thereby obtaining the prepared soil restorative agent. The prepared soil restorative agent has good effect in restoring the cadmium, lead and arsenic compound contaminated soil.

Novel methods and compositions for treating aged and environmentally damaged skin are disclosed which provide improvements in the skin's visual appearance, function and clinical/biophysical properties by activating at least one proteolytic enzyme in the skin's stratum corneum. The disclosed treatment methods involve topical application of a novel cosmetic composition containing a combination of a cationic surfactant such as N,N,-dimethyldodecyl amine oxide (DMDAO), an anionic surfactant such as sodium dodecyl sulfate (SDS), or monoalkyl phosphate (MAP) and a chelating agent such as ethylene diamine tetraacetate (EDTA) to stimulate a chronic increase in the replacement rate of the skin's stratum corneum by means of corneum protease activation. This chronic, low level stimulation is effective to induce repair and replacement of the stratum corneum, epidermis, and dermis of the skin and improvements in the appearance, function, and anti-aging properties of the skin.

The invention discloses a wet type dust-laying agent composition and a use method thereof. According to the percentage by weight, 0.04-0.06% of sodium dodecyl sulfate, 0.04-0.06% of sodium dodecyl benzene sulfonate, 99.547-99.91% of water and 0.111-0.333% of calcium chloride are fully mixed; and the mixed liquid is pressed into a spraying dust-laying system of a working face in the coal mine for spraying. The sodium dodecyl sulfate and the sodium dodecyl benzene sulfonate are the substances with surface activities and the molecules of the two substances are formed by hydrophilic groups and hydrophobic groups. The hydrophobic groups are generally formed by longer carbon chains, have the characteristics close to the characteristics of the molecules on the surface of coal dust and are easierto carry out absorption than water molecules, thereby improving the dust seizing efficiency of water, ensuring the dust-laying rate of the dust-laying agent to exceed 90% and saving the water consumption for dust laying.

The invention provides a wet-mixed mortar modifier. Every 1,000 parts of the wet-mixed mortar modifier comprises 15-20 parts of sodium tripolyphosphate, 1-2 parts of sodium hexametaphosphate, 4-5 parts of phosphonobutane tricarboxylic acid, 32-44 parts of glucose, 24-33 parts of citric acid, 50-80 parts of zeolite powder, 80-100 parts of silica fume, 200 parts of heavy calcium carbonate, 10-15 parts of starch ether, 20-40 parts of hydroxyethyl methyl cellulose ether, 1-2 parts of sodium dodecyl sulfate, 28-50 parts of a polycarboxylate superplasticizer, 20-25 parts of a polycarboxylate slump retaining agent, 40-80 parts of a naphthalene-based superplasticizer, 20-25 parts of redispersible latex powder, 8-10 parts of beta-cyclodextrin and the balance of fly ash. The plasticity-maintaining time of the wet-mixed mortar modifier is prolonged to 36 h, the later strength and bondability of the wet-mixed mortar are improved simultaneously, the mortar durability is improved, the problems of high probability of hollowing, cracking, leaking and the like of plastering mortar are solved, and the wet-mixed mortar modifier has low energy consumption and is free of chemical and radioactive contamination.

The invention relates to the field of nanometer materials, and particularly relates to nano-silver-containing adhesive and a using method of the adhesive in technical wood. The nano-silver-containing adhesive is characterized in that nano-silver is uniformly applied to an environmentally friendly glue solution, and flour is used as an additive of glue. A preparation method of the nano-silver comprises the following steps: adding a sodium dodecyl sulfate solution and a hydrazine hydrate solution to a silver nitrate solution so as to obtain mixed liquid, and adding crown ether and an alkali metal-containing reducing agent to the mixed liquid, wherein the molar ratio of the crown ether to the silver nitrate is (1-2): 1, the molar ratio of the alkali metal-containing reducing agent to the silver nitrate is (0.5-1): 1; and controlling a pH value to 8-9, thus obtaining the nano-silver. The using method of the adhesive comprises the following steps: bonding decorative veneer and a base material through the nano-silver-containing adhesive, then feeding into a vacuum tank, and vacuumizing; then carrying out pressurizing treatment; carrying out microwave treatment; and finally taking out, and carrying out cold pressing and hot pressing. The nano-silver-containing adhesive provided by the invention has good stability, dispersity and adhesiveness.

The invention provides a simple method for directly extracting microorganism macrogenome from an oil/gas pool environment sample, which comprises the following steps: an organic phase/water phase is extracted to obtain an microbe component in an oil sample/oil-water sample, vacuum filtering is carried out on the water phase enrichment microbes, cells are cracked by lysozyme, protease, sodium dodecyl sulfate (SDS) and the like, passes through the cetyl trimethyl ammonium bromide (CTAB) under high salt condition to remove organic macro-molecule components like protein and polysaccharide, extraction is carried out through nucleic acid and deposition is carried out, thereby the unbiased oil/gas pool microorganism macrogenome component can be obtained. The method of the invention has the advantages that the process is fast and simple, the cost is low, the whole extraction process can be completed in 10 hours; the obtained genome enables high purity, the ratio of OD260nm to OD280nm is between 1.7 and 2.0, the electrophoresis result detects that the integral genome possesses no degradation condition. The method of the invention aims at the oil/gas pool complex environments, and is suitable for extraction of other microbe genome in the soil and water body polluted by petroleum.

The invention relates to a method for preparing a high-solid-content graphene oxide grafted polyacrylate composite emulsion by using an in-situ method. The method comprises the following steps: carrying out ultrasonic treatment on mixed graphene oxide, sulfoxide chloride and N,N-dimethyl formamide; refluxing, raising temperature, carrying out heat preservation and cooling; adding N,N-dimethyl formamide to perform rotary evaporation; adding triethylamine and hydroxyethyl acrylate, and dissolving black powder which is obtained by suction filtration and washing into distilled water; adding sodium lauryl sulfate to carry out ultrasonic treatment, thereby obtaining double-bonded graphene oxide; mixing the double-bonded graphene oxide with sodium lauryl sulfate and distilled water to perform ultrasonic treatment; raising temperature and adding ammonium persulfate and distilled water; and dropwise adding acrylic acid, methyl methacrylate, butyl acrylate and an initiator solution, carrying out heat preservation and discharging. By introducing the double-bonded graphene oxide into the preparation process of the polyacrylate emulsion, the obtained composite emulsion is high in solid content, high in film breaking strength, basically invariable in elongation at break, and high in water absorption rate.

The invention provides a purpose of modified hydrotalcite based on dodecyl benzene sulfonate and lauryl sulfate, and particularly relates to an adsorbing agent used for adsorbing 2, 4, 6-trichlorophenol in a wastewater solution. According to modified hydrotalcite, with sodium dodecyl benzene sulfonate (SDBS) and sodium dodecyl sulfate (SDS) as a modifying agent, modified Zn2Al-LDHs is prepared and obtained by a co-precipitation method, the adsorbing agent has larger laminated plate spacing compared with the adsorbing agent before modification, and the hydrophilic surface becomes hydrophobic after modified. The adsorbing agent adsorbs 2, 4, 6-trichlorophenol and reaches adsorbing balance after 2-3 hours under the conditions that the pH value is 3-5 and the temperature is 25-35 DEG C; the adsorbing capacity reaches 100-160mg/g, and the adsorption rate reaches 70-83%. The adsorbing agent is applicable to 30-300mg/L wastewater solution containing 2, 4, 6-trichlorophenol and has the characteristics that the price is low, the adsorbing capacity is large and the adsorbing process is simple and convenient and is easy to operate and the like.

The invention discloses SDS-PAGE (sodium dodecyl sulfate polyacrylamide gel electrophoresis) coomassie brilliant blue R250 fast staining solution, which includes from 20 to 40% of ethanol by volume percentage, from 5 to 10% of carbinol by volume percentage, from 0.5 to 1.25g/L of CBB (coomassie brilliant blue) R250 by mass concentration, from 2.5 to 5% of phosphoric acid by volume percentage and from 100 to 200g/L of ammonium sulfate by mass concentration. A fixing step and a sensitization step before staining are omitted, protein staining time can be shortened, and the possibility that protein samples are polluted is greatly reduced. The invention further discloses a method for staining SDS-PAGE gel by the aid of the staining solution and application of the staining solution in a protein two-dimensional gel electrophoresis and protein western blot qualitative diagnosis and/or quantification process.

The invention relates to an environmentally-friendly multifunctional cleanser formula, and belongs to the field of producing daily products. The environmentally-friendly multifunctional cleanser formula comprises the following components in parts by weight: 15-20 parts of citrus plant essential oil, 20-30 parts of sodium dodecyl sulfate, 5-8 parts of alkyl polyglycoside, 1.2-1.8 parts of natural glucoside surfactant, 1.2-1.8 parts of propylene glycol, 1.2-1.8 parts of citric acid, 1.2-1.8 parts of sodium citrate, 10-15 parts of ethanol, and 20-25 parts of deionized water. The cleanser formula is wide in application range, strong in cleansing power, non-toxic and pollution-free, and capable of meeting the development trend of the market.

The invention relates to a plating assistant agent for zinc-aluminum-magnesium alloy hot dipping for a steel wire and belongs to the technical field of steel and iron material surface plating processes. The plating assistant agent is composed of 35-45 percent of ZnCl2, 2-10 percent of NaF2, 0.5-3.5 percent of CeCl2, 4.5-8.5 percent of SnCl2, 0.5-2 percent of H2O2, 0.1-05 percent of a surfactant and water in balancing amount. The surfactant is fatty alcohol ether sodium sulfate and/or sodium dodecyl sulfate. According to the invention, through a reasonable plating assistant agent formula, zinc-aluminum-magnesium alloy plating is obtained on the surface of the steel wire through hot dipping. The plating and the steel wire keep original performance respectively, more than 99.9 percent of a metallurgical bonding interface is obtained, the plating is compact in structure, plating leakage is avoided, and a zinc-aluminum-magnesium ternary eutectic with excellent corrosion resistance is formed. The corrosion resistance performance of the alloy plating is 2-4 times than that of normal hot-dipped pure zinc plating. The plating assistant agent is low in cost, can be used repeatedly and facilitates industrial production.

The invention relates to the porous ceramics material field, and concretely relates to a method for manufacturing high porosity and high strength yttrium-silicon-oxygen porous ceramics material through a foaming injection coagution process. According to the method, yttrium oxide and silicon oxide mixed power can be taken as a raw material, water is taken as a disperse medium, polyethyleneimine or ammonium citrate is selected as a dispersant, acrylamide or N-methylolacrylamide is taken as a monomer, a cross-linking agent N,N'-methylene bisacrylamide is added, a foaming agent sodium dodecyl sulfate, a peeling inhibitor polyoxyethylene, a catalyst N, N, N',N'-tetramethyl ethylenediamine and an initiator ammonium persulfate are added after stirring, and then injection mold solidification is carried out, drying is carried out for 24-48 hours at room temperature after demoulding, and then drying is carried out for 24-36 hours under the temperature of 60-90 DEG C, high temperature reaction sintering is carried out for 1.5-2.5 hours under the temperature of 1500-1550 DEG C finally, and the gamma-Y2Si2O7 porous ceramics can be finally manufactured. The manufactured gamma-Y2Si2O7 porous ceramics material having a multi-layer pore structure has controllable porosity with high porosity (75-85%) and high strength (3-8MPa).

An improved method of preserving a molecule in a bodily fluid comprises: (1) providing a preservative solution comprising: (a) an amount of a divalent metal chelator selected from the group consisting of ethylenediaminetetraacetic acid (EDTA), (ethylenebis(oxyethylenenitrilo))tetraacetic acid (EGTA), and 1,2-bis(2-aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid (BAPTA) and salts thereof in the range of from about 0.001 M to about 2 M; and (b) an amount of at least one chelator enhancing component selected from the group consisting of lithium chloride, guanidinium chloride, guanidinium thiocyanate, sodium salicylate, sodium perchlorate, and sodium thiocyanate in the range of from about 0.1 M to about 10 M; and (2) adding the preservative solution to the bodily fluid, thus preserving the molecule. The molecule can be a protein or a small molecule, such as a steroid. The invention also encompasses preservative compositions suitable for preserving proteins or small molecules, and kits. Preservative compositions can further include at least one enzyme inactivating component selected from the group consisting of manganese chloride, sarkosyl, and sodium dodecyl sulfate in the range of up to about 5% molar concentration. Compositions and methods according to the present invention have many diagnostic and forensic uses, in addition to being suitable for preparing compositions usable by hunters for attracting animals.