31 results about "Nonadecane" patented technology

The invention discloses a Gordonia alkanivorans and application in oil degradation, and belongs to the field of biotechnology. The Gordonia alkanivorans S104 is separated from a sea mud sample in Dalian area, and was collected in the Chinese General Microbial Culture Collection (CGMCC) on October 12th, 2010, wherein the collection number is 4224. The Gordonia alkanivorans is gram positive bacteria, has a rodlike shape, is determined by 16SrDNA sequence, and has high similarity (99.7 percent) with Gordonia alkanivorans, so the Gordonia alkanivorans is named Gordonia alkanivorans; however, the colonial morphology and the physiological and biochemical characters of the Gordonia alkanivorans are different from those of the model strains of the Gordonia alkanivorans. A plurality of hydrocarbons and aromatic compounds can be used by the Gordonia alkanivorans as sole carbon source, which comprises decane, undecane, hexadecane, nonadecane, docosane, octacosane, naphthalene, anthracene, phenanthrene, fluorene and terphenyl; the Gordonia alkanivorans can degrade oil, such as crude oil, diesel oil, soybean oil, olive oil and the like; and the Gordonia alkanivorans grows better in the diesel oil at 2 percent concentration, can degrade the crude oil, and has a promising application prospect in bioremediation of pollution of the crude oil and the diesel oil.

The invention discloses a pavement material with a wide phase change temperature zone and a preparation method thereof. The pavement material comprises a shape-stabilized phase change material and asphalt, wherein a mass ratio of the shape-stabilized phase change material to the asphalt is 1:(5-20); the shape-stabilized phase change material is prepared by mixing tetradecane/carrier, pentadecane/carrier, hexadecane/carrier, heptadecane/carrier, octodecane/carrier, nonadecane/carrier, eicosane/carrier and polyethylene glycol/carrier; and a mass ratio is 1:1:(1-3):(1-3):(1-3):(1-3):1:1. The shape-stabilized phase change material of different phase change temperatures is doped into the asphalt, so that the asphalt concrete pavement temperature is regulated, the adaptability on the outside temperature change is enhanced, the temperature rise rate inside large-volume asphalt concrete is effectively reduced, time-to-peak force is delayed, the influence of freezing-thawing cycle and extremely high or low temperature on the concrete pavement performance is reduced, thermal cracks occurring in the asphalt concrete can be prevented, the durability of the material is improved, and the service life is prolonged.

The invention discloses a preparation method for a fiber having functions of thermal storage and temperature regulation. The method comprises the following steps: 1, preparation of a master batch having the functions of thermal storage and temperature regulation: blending a thermal-storage and temperature-regulation agent and polyvinyl, drying, pouring into a screw type extruder for smelting, blending and extruding, and performing granulation to obtain the master batch having the functions of thermal storage and temperature regulation; 2, production of the fiber having the functions of thermal storage and temperature regulation: blending and slicing the obtained master batch and a fiber, and performing spinning, reeling and stretching to form the fiber having functions of thermal storage and temperature regulation, wherein the thermal-storage and temperature-regulation agent comprises the following components by weight: 75-90 parts of nonadecane, 30-50 parts of molybdenum oxide, 15-25 parts of titanium dioxide, 2-5 parts of aluminium-zirconium acid ester couplint agent, and 0.5-1.2 parts of polyacrylate sodium dispersant. According to the method, the thermal-storage and temperature-regulation agent and the fabric fibers can be firmly combined, so that the durability is high, and the superior thermal-storage and temperature-regulation function for the fabric fiber is achieved.

The invention discloses a composite energy storage building material with an inflaming retarding function, comprising the mixture of nonadecane and gypsum powder. The tripolycyanamide inflaming retarding material with quality concentration of 1-8% is added in the mixture, wherein, the weight ratio of nonadecane to gypsum powder in the mixture is 1: (1-5). The composite energy storage building material of the invention compounds the organic phase change energy storage materials and proper building materials, adds proper amount of the inflaming retarding material, increases the temperature regulation capacity of buildings, strengthens heat transmission in heat storage and releasing, solves the problems of liquid phase leakage and corrosion of the energy storage materials, simultaneously has inflaming retarding function, and is especially suitable for energy saving field of buildings.

The invention discloses a disposable thermometer, which is mainly used for measuring body temperature. The thermometer is totally made of organic matters, and can be disposed through incineration after use. Phase-change material powders are placed in a container made of plastics, and body temperature is represented through the feature that different phase-change materials have phase change under different temperatures. The phase-change materials comprise aliphatic hydrocarbons, fatty alcohol, fatty acid and fatty acid ester. The aliphatic hydrocarbons comprise n-nonadecane-n-tetracosane; the fatty alcohol comprises n-tridecanol-n-hexadecanol; the fatty acid comprises n-capric acid-n-octadecanoic acid; and the fatty acid ester comprises methyl stearate, ethyl stearate, methyl nonadecanoate, ethyl nonadecanoate, eicosanoic acid methyl ester and eicosanoic acid ethyl ester. The phase-change materials having different phase-change temperatures are mixture of two or three kinds of different phase-change materials. The disposable thermometer is cheap, does not need disinfection and is easy to dispose.

The invention discloses a high performance synthesis composite material and a manufacturing method thereof, the high performance synthesis composite material comprises the following raw materials by weight: 15-20 parts of recovered waste and old plastic, 4-6 parts of a mixture of nonadecane and gesso with mass ratio being 1: 3, 4-6 parts of gesso, 20-25 parts of plant crushing object, 0.5-0.7 parts of coagulating agent, 12-15 parts of bentonite, 20-30 parts of waste residue from aluminium manufacturer, and 5-8 parts of flame retardation material. Addition of the plant rod and the coagulating agent realizes good sound-absorbing effect of the building material, a proper amount of flame retardation material is added for enhancing heat transfer in heat storage and release processes, addition of the waste and old plastic realizes aging resistance performance, the synthesis composite material has good waterproof and anticorrosion performances. According to the synthesis composite material, the making cost is low, during the practical production process, no waste water and waste residue can be discharged, and requirements of energy saving and environmental protection can be realized.

The invention discloses a preparation method of a CNTs (Carbon Nanotubes) modified PAN (Polyacrylonitrile) phase change material microcapsule composite thin film. The preparation method is carried out in sequence according to the following steps: firstly, grinding enough PAN powder and drying at constant temperature; secondly, pouring 1-methyl-2-pyrrolidinone and an n-nonadecane phase change microcapsule into a beaker and carrying out ultrasonic dispersion; then adding carboxylated CNTs and carrying out the ultrasonic dispersion; thirdly, raising the temperature of a water-bath pot and adding polyvinylpyrrolidone and the PAN; fourthly, stirring; fifthly, standing and de-foaming; sixthly, carrying out film preparation. According to the preparation method disclosed by the invention, a proper amount of the carboxylated CNTs are added; compared with the utilization of other types of the CNTs or the CNTs with other content, the carboxylated CNTs can realize maximization of the enthalpy efficiency or porosity of the thin film and a corresponding thin film material with the optimal performance is obtained. The carboxylated CNTs are added so that the water flux and porosity of the prepared thin film material are improved and the prepared thin film has good specific surface area, pore volume and pore diameter.

The invention relates to a method for preparing n-tetradecane and n-nonadecane in one time, which comprises the following steps of: preparing for the raw materials of bromoalkane and metal sodium for later use; adding bromoalkane mixed liquor and the metal sodium into a reaction kettle, stirring, heating to 80 DEG C, maintaining the temperature at 120-140 DEG C, adding the rest raw materials, then controlling the temperature at 140-160 DEG C, and maintaining the temperature for 2 hours; adding alcohol and water in sequence, separating out organic matters, washing to be neutral with water, drying by using anhydrous magnesium sulfate, then distilling and collecting distillates, and collecting the finished products of the n-tetradecane and the n-nonadecane through a water distillate column according to different boiling points. In the method for preparing the n-tetradecane and the n-nonadecane, the difference in carbon chains of the raw materials is not less than 3, the problem of difficult purification of the finished products is overcome, and the production efficiency is improved.

The invention discloses a building environment-friendly flame-retarding wall composite material, which is characterized by comprising the following components in percentage by weight: 20 to 80 percent of gypsum powder, 5 to 20 percent of low-calcium fly ash, 5 to 10 percent of water and 10 to 40 percent of nonadecane. The mixture formed by mixing the components in the range of a mixing ratio is added with a tripolycyanamide environment-friendly flame-retarding material at a mass concentration of 1 to 7 percent. In the invention, organic phase-change energy-storage material and a proper building material are combined, and a proper amount of environment-friendly flame-retarding material is added into the composite material; therefore, the heat transfer in the heat storage and release process is reinforced, the liquid leakage and corrosion problems of the energy-storage material are solved, and the composite material has environment-protection and flame-retarding functions.

The invention discloses a telescopic rod which comprises a movable rod, a guide sleeve, a pipe body and a bottom cover. Wherein the guide sleeve is embedded in the top of the pipe body; the bottom cover is arranged at the bottom of the pipe body; a cavity is formed in the pipe body, and a mixing agent is arranged in the cavity; the movable rod penetrates through the guide sleeve and is movably connected with the cavity; when the mixture expands with heat and contracts with cold, the movable rod is driven to linearly move back and forth relative to the pipe body, so that the telescopic function is realized; the mixing agent is prepared from the following components in percentage by mass: 0.3 to 0.8 percent of hexadecane, 7 to 8 percent of heptadecane, 37 to 42 percent of octadecane, 23.2 to 26 percent of nonadecane, 16 to 19 percent of twenty-alkane, 5 to 7.2 percent of heneicosane, 0.5 to 2 percent of docosane and 2 to 4 percent of C16-22 branched-chain alkane. The device has the advantages of being simple in structure, capable of automatically stretching and retracting and the like.

The invention relates to synthesis of eribulin mesylate, in particular to a method for preparing an intermediate compound II ((1R, 2S, 3S, 4S, 5S, 6R, 11S, 14S, 17S, 19R, 21R, 23S, 25R, 26R, 27S, 31R, 34S)-25-[(2S)-2, 3-dihydroxy]-2, 5-dihydroxy-26-methoxy-19-methyl-13, 20-dimethylene-24, 35, 36, 37, 38, 39-hexaoxaheptacyclo [29.3.1.13, 6.14, 34.111, 14.117, 21.023, 27] nonatriacontane-8, 29-diketone) of eribulin mesylate, which aims to solve the problem of low reaction yield of a traditional synthesis route.

An embodiment of the invention discloses a novel tarnished plant bug attractant, a preparation method thereof and an application of the attractant. Raw materials for preparing the novel tarnished plant bug attractant include nonadecane, beta-pinene and dodecane, the volume ratio of the nonadecane, the beta-pinene to the dodecane is 1:(1-5):(5-1), and the nonadecane, the beta-pinene and the dodecane are diluted into 1:1000 time solution, 1:10000 time solution and 1:1000 time solution before use. The novel tarnished plant bug attractant takes the nonadecane, the beta-pinene and the dodecane as main components, has good trapping effects and can achieve the purpose of pest control by field adult trapping and killing.

The invention discloses a diesel family boundary substance mixed standard solution. The solution is characterized in that the boundary substances comprise n-decane, n-undecane, n-dodecane, n-tridecane, n-tetradecane, n-pentadecane, n-hexadecane, n-heptadecane, n-octadecane, n-nondecane, n-eicosane, n-hendecane, n-docosane, n-tricosane, n-tetradecane and n-pentadecane. A brand-new analysis means isprovided for appearance of a comprehensive two-dimensional gas chromatography technology, comprehensive ethnic analysis can be carried out on diesel oil, accurate measurement can be carried out on some specific compounds, and a boundary substance standard solution and a preparation method play one of key roles.

The invention discloses a high-strength plasticizer which is formed by mixing the following components in weight percent: 13% to 14% of polyvinyl chloride, 0.2% to 0.3% of glycerine, 10% to 20% of diethylene glycol, 10% to 20% of octyl ethylene epoxide, 0.5% to 0.7% of methene nonadecane and the balance of trimethylene ether. The high-strength plasticizer has the advantages of reasonable formula, low cost, low plasticization temperature, good tackiness, low sticky residue and stronger weather resistance.

The invention relates to a preparation method of 10-oxononadecanedioic acid. Compared with a corresponding synthesis method in the prior art, the preparation method disclosed by the invention is high in conversion rate, few in side reaction, simple in process, easy to control, high in safety, low in equipment requirement and suitable for industrial application, and has huge economic potential.