190 results about "Cetyltrimethylammonium chloride" patented technology

Disclosed is a hair conditioning composition comprising: (a) a cationic surfactant being cetyltrimethylammonium chloride; (b) a high melting point fatty compound; and (c) an aqueous carrier; wherein the composition has a yield point of at least 9 Pa, and the yield point meeting the following mathematical expression: Y≧3.50X−7.80, wherein Y is yield point of the composition, X is a total amount (percentage by weigh of the composition) of the cationic surfactant and the high melting point fatty compound; and wherein the composition is substantially free of thickening polymers. The composition of the present invention effectively delivers conditioning benefits to hair.

The invention provides a release agent for an aluminum alloy mold and a preparation method of the release agent. The release agent comprises, by weight, 10-20 parts of polyethylene wax, 1-5 parts of polyving akohol, 4-9 parts of silicone oil, 2-6 parts of boraxes, 19-27 parts of talcum powder, 6-14 parts of sodium dodecyl benzene sulfonate, 0.2-1.3 parts of cetyltrimethylammonium chloride, 5-10 parts of compound emulsifiers, 0.05-0.2 part of dichlorophen, 0.1-0.25 part of oxygen propylene ethylene oxide glyceryl ether, 0.2-1.4 parts of inhibiters, and 60-90 parts of water. The preparation method of the release agent comprises the steps that the raw materials are weighed according to the formula, and then stirred and cooled, and thus the release agent for the aluminum alloy mold is obtained. The release agent prepared through the method is safer, clean and free of pollution; compared with a traditional oil-based release agent, the release agent has the advantages that the cooling effect is good, accumulation is avoided, and the surface quality of castings is good; and compared with a powdery release agent, the release agent has the advantage of being low in cost.

The invention discloses a hydrophobic high-elasticity methylsilsesquioxane aerogel block and a preparation method thereof. The aerogel block is a compound with methyltrimethoxysilane and dimethoxydimethylsilane as a co-precursor, a hydrochloric acid solution HCl as a solvent and a catalyst and cetyltrimethylammonium chloride as a dispersant. The preparation method includes the following steps: adding cetyltrimethylammonium chloride into the hydrochloric acid solution, then adding the precursor, carrying out magnetic stirring under a closed condition, adding a gel accelerator, then stirring again, placing in a drying oven, gelling and aging; carrying out solvent replacement of the gel formed in the step 1) with isopropanol for at least two times, to obtain a gel after solvent replacement; and placing the gel after solvent replacement in a drying oven, and drying to obtain the complete hydrophobic high-elasticity methylsilsesquioxane aerogel block. Through the way, the methylsilsesquioxane aerogel block with good hydrophobicity and high elasticity can be obtained under the condition of ambient pressure drying.

The invention discloses an organic montmorillonite-aqueous polyurethane compound leather finishing agent and a method for preparing the same. The method comprises the following steps: firstly using quaternary ammonium salt such as cetyl trimethyl ammonium chloride, octadecyl dihydroxyethyl methyl ammonium bromide and the like, organic amine such as ethylene diamine, octadecylamine and the like, or a silane coupler, polyisocyanate and the like to organically modify montmorillonite to prepare organic montmorillonite; and secondly, performing intercalation reaction of emulsion of a polyurethane resin finishing agent and the organic montmorillonite to obtain the finished product of the organic montmorillonite-aqueous polyurethane compound leather finishing agent. In the method, the quaternary ammonium salt, the organic amine, the silane coupler or the polyisocyanate are used for organically modifying the montmorillonite, so that the interlamellar spacing of the montmorillonite is increased, the micro environment among the lamellas is improved, the compatibility of the montmorillonite and the organic phase is improved, and the intercalation reaction of the polyurethane molecules and the montmorillonite is easily performed; moreover, due to the interlamellar compound of the organic montmorillonite on the polyurethane resin finishing agent, the mechanical property, the thermal resistant stability, the water resistance and the water vapor permeability of the finishing material are improved. When the leather finishing material is applied to leather finishing, the leather finishing material has the advantages of greatly improving the mechanical strength and thermal resistant stability of the coating and having active effects on water resistance, sanitary property and the like of the coating.

The invention relates to an earth pressure balance shield foaming agent and a preparation technology thereof. The earth pressure balance shield foaming agent is prepared from 4-15% by weight of sodium dodecyl sulfate, 1-10% by weight of cetyltrimethylammonium chloride, 2-8% by weight of cocamidopropyl betaine, 1-5% by weight of dodecyldimethylamine oxide, 0.1-0.5% by weight of disodium ethylene diamine tetraacetate, 0.1-2.0% by weight of a tackifier and the balance water. The earth pressure balance shield foaming agent has a simple formula and high effects, and utilizes cetyltrimethylammonium chloride with excellent permeability, flexibility, emulsification effects and sterilization performances as a cationic surfactant which can be mixed with other surfactants. The earth pressure balance shield foaming agent is environmentally friendly, has excellent permeability and lubricity and can effectively improve excavated soil fluidity and watertightness.

The invention relates to a method for preparing an adhesive abamectin polydopamine microcapsule by employing an emulsion interface polymerization method, and aims at solving the problems that abamectin is easy to decompose in light, and most of dosage forms cannot effectively remain on a plant leaf surface. The method comprises the following steps: with a Tris-HCl buffer liquid containing cetyltrimethylammonium chloride (1.5%m / v of water phase) as a water solution, and an n-butyl alcohol solution containing abamectin as an oil phase, carrying out oxidizing auto-polymerization on an emulsion interface through polydopamine (the density is 1mg / mL); carrying out mechanical agitation at room temperature for 24 hours; and centrifugally washing to obtain the abamectin polydopamine microcapsule with stickiness and light stability, wherein the microcapsule has temperature and pH control-release property. The abamectin polydopamine microcapsule which is uniform in size, high in loading capacity and high in stickiness can be prepared by the method disclosed by the invention; and the method is high in yield and simple in steps, and can be applied to industrialization.

The invention relates to a preparation method of quaternized zinc oxide sol as a textile finishing agent. In the preparation method, the quaternized zinc oxide sol is respectively prepared by taking diallyl dimethyl ammonium chloride, diallyl methyl dodecyl, myristyl, hexadecyl, octadecylselyl ammonium bromide and cetyltrimethyl ammonium chloride as additives and taking diallyl methyl alkyl quaternary ammonium as an additive, the monomers not only have a certain regulating function for the shape of the zinc oxide sol, but also can be used for remarkably improving the dispersion degree of the nano ZnO and reducing the grain size of the nano ZnO and can also be used for improving the performance of a finished textile; meanwhile, the quaternized zinc oxide sol can be subjected to cyclopolymerization with other monomers because of containing non-conjugated diene bonds. The quaternized zinc oxide sol has the bacteriostasis rate of 62-83% and the strength loss rate of 22-29% when being applied to the antimicrobial finishing of a cotton textile, and meanwhile, the quaternized zinc oxide sol has certain ultraviolet resistance.

The invention discloses a preparation method for a near-infrared light switch fluorescent polymer nanoparticle, and application thereof. A FRET (Fluorescence Resonance Energy Transfer) principle is used, MMA (Methyl MethAcrylate) is taken as a polymerizable monomer, polymerizable near infrared fluorescent dye (TEGTPPDI-Aly) is taken as an energy donor, a polymerizable photochromic compound (STPMA) is taken as an energy receptor, hexadecane (HD) is taken as a hydrophobic substance, CTAC (Cetyltrimethylammonium Chloride) is taken as surfactant, and a one-step simple miniemulsion polymerization method is adopted to prepare the near-infrared light switch fluorescent polymer nanoparticle. The near-infrared light switch fluorescent polymer nanoparticle prepared with the predation method has the advantages of near-infrared light switch ability, low cytotoxicity, good water dispersibility, low input cost, simple synthetic route and the like, is suitable for amplification synthesis and practical production and application, and has a huge application prospect in technical field including super-resolution imaging, life science and the like.

The invention relates to a spheroidal gold particle and a step-by-step rapid synthesis method thereof. The method includes the following steps: soluble gold salt, surfactant and reducer are prepared into mixed solution, and gold particle seeds are added in the process of rapid agitation, and thereby react to grow into spheroidal gold particles, the grain size of which is 5nm to 100nm; the surfactant is the mixed surfactant of cetyltrimethylammonium bromide or cetyltrimethylammonium chloride and cetyltrimethylammonium bromide, the reducer is ascorbic acid, and the gold particle seeds are spheroidal gold particles, the grain size of which is 2nm to 60nm. The gold particle seeds can be monocrystalline or polycrystalline, and the synthesized spheroidal gold particles have the same crystal form as the gold particle seeds. Since the invention adopts the surfactant and the reducer and the gold particle seeds are added in the process of rapid agitation, reaction is rapid enough, consequently, the gold salt can rapidly and uniformly grow on the surfaces of the gold particle seeds, and the obtained spheroidal gold particles is narrow in grain size and has a good degree of sphericity.

The invention discloses a method for preparing hydrophobic white carbon black. The method comprises the steps of drying precipitated white carbon black to constant weight, then mixing with a modifier solution, adjusting a pH value to 8; and at a temperature of 30-90 DEG C, stirring for a reaction for 20-100 min with a stirring speed of 250-450 rpm, then filtering, and drying to obtain the hydrophobic white carbon black. The modifier is selected from one or more of cetyltrimethylammonium chloride, hexadecyltrimethylammonium bromide, dodecyltrimethylammonium chloride, and dodecyltrimethylammonium bromide. The activation degree of the modified white carbon black is obviously improved and can reach 95% or more, and the modified white carbon black is the hydrophobic white carbon black. The method of the invention is simple in process, has the solvent with cleanliness and no pollution; and the modified white carbon black has the hydrophobic property improved significantly, and thereby being beneficial to improving compatibility when adding into rubber and plastics.

The invention relates to a novel preparation method of a schiff base oil well acidification corrosion inhibitor and application of the preparation method. The corrosion inhibitor comprises the following components in percentage by weight: 5-20 percent of schiff base compound, 0.5-2 percent of cyclohexylamine, 1-3 percent of methoxy amine, 3-5 percent of hexadecyl trimethyl ammonium chloride, 15-20 percent of N'N-dimethyl formamide and 50-75.5 percent of solvent. The corrosion inhibitor has extremely strong adsorption, can form a compact protective film on a metal surface and is extremely suitable for corrosion resistance of different oil pipe steel in acid fracturing construction of petroleum exploitation industry. The acidification corrosion inhibitor used for the oil pipe steel can also be promoted and used in pipeline acid washing of industries of chemical industry, water supply and drainage, boilers, steel mill and the like. The application temperature of the corrosion inhibitor in an acidification process can reach 140 DEG C; and the corrosion inhibitor is suitable for hydrochloric acid with concentration of reaching up to 25 percent, and has the characteristics of less using amount, high efficiency, wide application temperature range, suitability for oil pipes of different materials, good dispersion in acid solution, easiness and convenience for production and the like.

The invention relates to a method for detecting residual disinfecting Cetyltrimethylammonium Chloride (CTAC) used in the production process of sodium hyaluronate. The method comprises the following steps: preparing a CTAC standard solution to structure a linear regression equation; preparing a sample solution, using an improved bismuth potassium iodide test solution for developing and measuring the absorbency value; and calculating the content of the CTAC with the linear regression equation. The structuring method of the linear regression equation is as follows: after using the improved bismuth potassium iodide test solution for developing of the prepared 2 Mug / ml, 4 Mug / ml, 8 Mug / ml, 10 Mug / ml and 20 Mug / ml standard solutions, measuring the absorbency under 290nm. By adopting the method to detect the content of the CTAC, the shortcoming that the content and the residue of the CTAC serving as a disinfectant or a reaction agent can not be monitored at present can be overcome, the detection time is greatly shortened, and the detection cost is lowered. The method provided by the invention is particularly suitable for detecting CTAC in labs.

The invention discloses recycled aggregate pervious concrete and a preparation method thereof, and belongs to the technical field of concrete. The pervious concrete is prepared from the following raw materials: cement, pretreated recycled aggregate, superfine slag powder, fly ash, toughened modified polypropylene fibers, redispersible latex powder, a silane coupling agent, hydroxypropyl methyl cellulose, a water reducing agent and water. According to the invention, the recycled aggregate is pretreated by chitosan, and then the toughening modified polypropylene fiber is modified by nano silicon dioxide and cetyltrimethylammonium chloride, so that the bonding force between the fiber and recycled aggregate particles is improved, and the strength of the material is greatly improved on the whole. The raw materials are scientifically proportioned, recycled aggregate is used for preparing the pervious concrete, recycling of waste resources is achieved, and the obtained recycled aggregate pervious concrete is high in compressive strength, high in water permeability, high in frost resistance and high in adaptability to the environment and has wide economic benefits and social benefits.

The invention discloses a preparation method of dandruff removing and itching relieving plant shampoo. Effective components of the shampoo consist of the following components in percentage by mass: 5-8 percent of a cacumen biotae extracting solution, 3-5 percent of a herba andrographitis extracting solution, 5-8 percent of wheat protein subjected to quaternization, 2.0-5.0 percent of N-hexadecyltrimethylammonium chloride, 7.0-15.0 percent of sodium alcohol ether sulphate, 0.5-1.5 percent of coconut monoethanol amide, 0.5-1.5 percent of hexadecanol, 0.5-1.5 percent of glyceryl monostearate, 0.5-1 percent of a preservative and the balance of deionized water. According to the preparation method, the plant extracting solutions are good in compounding and cooperating effect with a hair washing system, so that the dandruff removing and itching relieving plant shampoo has obvious dandruff removing and itching relieving effects; furthermore, by the adoption of pure natural additives, the dandruff removing and itching relieving plant shampoo does not have dependency or side effects; moreover, the wet combing property of hair and the softness, the brightness and the smoothness of dried hair can be obviously improved. In addition, as the compounded system has other effects, the shampoo has rich foam, glossiness, high flexibility and higher anti-static electricity capacity.

The invention discloses an easy-to-foam shield foam additive. The easy-to-foam shield foam additive specifically comprises the following components in parts by mass: 15-20 parts of sodium dodecyl sulfate, 10-18 parts of cetyltrimethylammonium chloride, 8-15 parts of fatty alcohol polyoxyethylene ether sulfate, 5-8 parts of an amphiphilic polymer, 25-40 parts of expanded polystyrene, 4-12 parts ofmodified cellulose, 80-90 parts of water, 3-6 parts of polyethylene glycol, 3-5 parts of a blowing promoter, 10-26 parts of a foaming additive, 3-7 parts of a foam stabilizer, 5-8 parts of a dispersant, 3-8 parts of an acid catalyst, 10-25 parts of a coagulant and 2-8 parts of a hydrophilic additive.