88 results about "Dodecyl methacrylate" patented technology

The invention discloses a methanol diesel fuel complex additive and a preparation method thereof. The complex additive is prepared from the following raw materials in parts by volume: 1-4 parts of diethyl phthalate, 1-8 parts of n-butylamine, 1-9 parts of isooctanol, 1-6 parts of cyclohexanone, 13-42 parts of lauryl methacrylate, 7-30 parts of mixed fatty glyceride, 1-5 parts of phenyl propargyl ether, 1-8 parts of dihexadecyl dimethyl ammonium chloride, 2-12 parts of ethyl formate, 2-14 parts of isooctyl nitrate and 1-6 parts of polyoxyethylene hexadeeylalkyl ether selies. The methanol diesel fuel complex additive can enable methanol diesel fuel to be evenly mixed and to be stably stored for more than 6 months, which effectively improves the fire behaviour of the methanol diesel fuel and inhibits the volatilization when the methanol content is higher; moreover, the production process is simple and the use is convenient, thereby being beneficial to the popularization and application of the methanol diesel fuel.

The invention discloses a micro-extraction monolithic column of an ionic liquid polymer capillary tube and a preparation method thereof. The method comprises the following steps: by adopting imidazolium ionic liquids and dodecyl methacrylate as functional monomers, taking ethylene glycol dimethyl acrylic ester as a cross-linking agent, taking normal propyl alcohol and butanediol as pore-foaming agents and taking azodiisobutyronitrile as an initiator, evenly mixing the raw materials at room temperature in an oscillating manner, and injecting into a vinyl-modified quartz capillary tube; sealing, and carrying out thermal initiation one-step polymerization, so as to obtain the micro-extraction monolithic column of the ionic liquid polymer capillary tube in manners of cleaning and drying. The micro-extraction monolithic column is simple and convenient in synthetic process, controllable in reaction, and low in cost. The prepared micro-extraction column for the capillary tube has good permeability, porosity, and chemical and mechanical stability; a plurality of interaction sites such as an imidazole ring with positive electricity and different lengths of carbon chains and the like are formed on the surface; the micro-extraction monolithic column has good extraction ability on the substances such as phenolic environmental hormone and the like, and is quick to extract, and easy to build an analysis method with high sensitivity by combining with capillary electrochromatography.

The invention belongs to the field of fuel oil additives and in particular relates to a preparation method of a biodiesel composite additive. The preparation method of the biodiesel composite additive comprises the following steps: adding dodecyl methacrylate, steary methacrylate, isooctyl nitrate and dicthyl ortho-phthalate into a raw material mixing tank and stirring evenly; adding maleic anhydride and isooctanol and stirring evenly; and then adding tert-butylamine and double hexadecyl dimethyl ammonium chloride and stirring for 30-35 minutes; adding polyoxyethylene hexadecy phenolic ether and phenyl propargyl ether into a solution, heating to 45-50 DEG C, stirring for 20-30 minutes at 0.5-1.0MP, standing for 24 hours and filtering to remove sediment. The biodiesel composite additive prepared by the preparation method is good in cold filtering point reducing effect; and meanwhile, the problem of reversion of the cold filtering point can be avoided; the effects of other diesel additives are not influenced; and the biodiesel composite additive is efficient and stable in dispersion capability and good in oil solubility.