35 results about "N-hexadecane" patented technology

The invention provides novel waterproof phase change thermal insulation mortar and a preparation method thereof, and relates to the technical field of mortar building materials, the novel waterproof phase change thermal insulation mortar is prepared from the following raw materials by weight: 500 parts of ordinary Portland cement, 150 parts of water, 250-450 parts of fine sand, 50-200 parts of a shape-stabilized phase change material, 5-15 parts of a polycarboxylic acid water reducer, and 1-5 parts of polysorbate. The diatomite is treated by adopting a three-step method of calcination, acid pickling and hydrophobic modification, so that on the basis of reducing impurities and increasing the pore volume, the diatomite is modified from hydrophilicity to hydrophobicity and lipophilicity, the adsorption capacity of the diatomite to n-hexadecane is further enhanced, and the enthalpy and volume stability of the shape-stabilized phase change material can be remarkably improved.

The invention discloses a Gordonia ovorans YDY-4 strain and an application of the Gordonia ovorans YDY-4 strain in degradation of n-hexadecane. The cholesterol-eating Gordonia sp. YDY-4 is named as the cholesterol-eating Gordonia sp. YDY-4, is preserved in the China Center for Type Culture Collection (CCTCC), and has the preservation number of CCTCC M 20251290, and the cholesterol-eating Gordonia sp. YDY-4 is named as the cholesterol-eating Gordonia sp. YDY-4 and is preserved in the China Center for Type Culture Collection (CCTCC). The Gordonia ovorans YDY-4 provided by the invention has the capability of degrading n-hexadecane under the condition that the pH (Potential of Hydrogen) is 7.0 to 9.0, and can grow at 28 to 32 DEG C. The Gordonia ovorans YDY-4 provided by the invention has relatively strong environmental adaptability and n-hexadecane degradation capability, and provides a basis for bioremediation of petroleum polluted environment and application of a microbial enhanced treatment technology.

The present invention provides a fluororesin film having high uniformity of adhesive strength of the film. A fluororesin film comprising a composition containing a fluororesin, the fluororesin film being characterized in that: the average value of contact angles with water, measured at 5 locations at intervals of 100 mm with respect to the direction of travel, is 105 DEG or less in at least one surface, at the center and at locations 100 mm from each of the left and right ends; the average value of the contact angles with n-hexadecane measured at five positions every 100 mm with respect to the direction of travel is 45 DEG or less.

The invention relates to the technical field of microcapsule essence, in particular to rapid phase change microcapsule essence and a preparation method thereof. The rapid phase change microcapsule essence is prepared from the following raw materials in parts by mass: 10 to 20 parts of n-hexadecane, 1 to 5 parts of essence, 1 to 3 parts of lauryl sodium sulfate, 3 to 6 parts of mesoporous silicon dioxide, 0.1 to 0.2 part of hexadecyl triethoxysilane, 1 to 2 parts of hydroxylated hexagonal boron nitride, 0.05 to 0.15 part of polyvinylpyrrolidone, 0.1 to 1 part of glycidyl methacrylate and 5 to 15 parts of methyl methacrylate. The invention relates to a UV (ultraviolet) photoinitiator, which is prepared from the following components in parts by weight: 1 to 3 parts of epoxy soybean oil acrylate, 0.08 to 0.6 part of citric acid, 0.05 to 0.15 part of photoinitiator and 0.08 to 0.6 part of persulfate initiator. The microcapsule disclosed by the invention has the characteristics of storing energy and regulating ambient temperature and has aromatic smell, and the preparation method is mild in condition, simple and easy to control in process and suitable for large-scale popularization and application.

This invention belongs to the field of diesel additive technology, and particularly relates to a diesel cetane number improver and its preparation process, comprising the following steps: mixing isooctyl nitrate, n-hexadecane, n-eicosane, oleic acid, and 2,6-di-tert-butyl-p-cresol to obtain a premix; mixing anhydrous ethanol, glycerol, and an emulsifier, adding the premix, reacting, and drying to obtain microparticles; mixing ethyl acetate, isopropanol, n-butanol, and an emulsifier, adding hexadecyl alcohol and EVA-210 to dissolve, to obtain a film-forming solution; mixing ethyl acetate and isopropanol, adding the microparticles and the film-forming solution, removing ethyl acetate, isopropanol, and n-butanol, adding the solution to liquid paraffin and mixing to obtain the diesel cetane number improver. The diesel cetane number improver prepared by this invention can prevent isooctyl nitrate from directly contacting the external environment, slow down the generation rate of free radicals, effectively improve and stabilize the cetane number of diesel, and maintain the cetane number of diesel at a high level for a longer period of time.

The application provides a preparation method of a porous material loaded with mixed microorganisms, comprising the following steps: S1, preparation of a mixed bacteria suspension; S2, preparation of an activated sludge porous material; and S3, preparation of a porous material loaded with mixed microorganisms. The application also provides a preparation method of an oil-wetting and water-repellent activated sludge porous material loaded with microorganisms, which comprises spraying a hydrophobic silica particle suspension on the porous material loaded with mixed microorganisms to obtain a modified material which is oil-wetting and water-repellent. The porous material loaded with mixed microorganisms and the oil-wetting and water-repellent activated sludge porous material loaded with microorganisms can effectively degrade medium and long chain alkanes in oil, especially n-hexadecane.

The invention belongs to the technical field of organic synthesis, and particularly relates to a melamine monoenamine ester derivative and a preparation method thereof. The structural general formula of the melamine monoenamine ester derivative is as shown in formula I: # imgabs0 # R is methyl, ethyl, n-propyl, n-butyl, isobutyl, tertiary butyl, n-hexyl, 1-methylheptyl, n-octyl, 3, 7-dimethyl octyl, n-decyl, n-dodecyl, n-tetradecyl, n-hexadecyl and the like. In the method, melamine and propiolic acid ester are used as raw materials, one-step synthesis is performed under the action of a catalyst and a solvent, and the method has the advantages that the operation is simple, the raw materials are cheap and easy to obtain, the yield is relatively high, the selectivity is good, the substrate adaptability is wide, the industrial production is convenient, and the like.

The invention discloses a Pandoraea sp. YDY-3 strain and an application of the Pandoraea sp. YDY-3 strain in degradation of n-hexadecane. The Pandoraea pandurata YDY-3 is named as Pandoraea pandurata YDY-3, and is preserved in the China Center for Type Culture Collection (CCTCC), and the preservation number is CCTCC M 20251289. The Pandoraea pandurata YDY-3 is named as Pandoraea pandurata YDY-3. The Pandoraea sp. YDY-3 has the capability of degrading n-hexadecane under the condition that the pH value is 7.0-10.0, and can grow at 28-32 DEG C. The Pandoraea sp. YDY-3 has the advantages that the Pandoraea sp. The Pandoraea sp. YDY-3 provided by the invention has relatively strong environmental adaptability and n-hexadecane degradation capability, and provides a foundation for bioremediation of petroleum polluted environment and application of a microbial enhanced treatment technology.

The invention provides a preparation method of an anti-icing and anti-frost super-lubricating surface, and belongs to the technical field of anti-icing and anti-frost of power transmission lines, and the preparation method comprises the following steps: preparing an alumina substrate of a porous structure with the pore diameter of 100-150 nm and the porosity of 60-70% by adopting an anodic oxidation method; immersing the alumina substrate into an ethanol solution of n-hexadecyl trimethoxysilane for modification to obtain a modified alumina substrate; the preparation method comprises the following steps: stirring and mixing silicone oil and n-hexadecyl trimethoxy silane to obtain modified silicone oil; the anti-icing frost-resistant super-lubricating surface is prepared from the modified silicone oil and the modified aluminum oxide substrate through a vacuum impregnation method. The preparation method of the anti-icing frost-resistant super-lubricating surface is simple, easy to implement, economical and effective, and the prepared super-lubricating surface has good anti-icing frost-resistant performance.

The invention belongs to the field of preparation of thermochromic films, and particularly relates to a VO2-based thermochromic composite film with gradient regulation and control of visible and near-infrared dual wavebands and a preparation method of the VO2-based thermochromic composite film with gradient regulation and control of visible and near-infrared dual wavebands. In order to solve the problem that visibility is sacrificed when an existing thermochromic material co-modulates a visible-near-infrared band, the visible-near-infrared dual-band gradient regulation thermochromic composite film based on VO2 is provided and comprises a film forming substrate, a phase change material and a phase change latent heat material, wherein the phase change material and the phase change latent heat material are distributed in the film forming substrate; the phase change material is tungsten-doped vanadium dioxide nano powder; the phase change latent heat material comprises at least one of n-hexadecane, n-octadecane, stearic acid, palmitic acid and paraffin. According to the invention, visible-near infrared dual-band temperature gradient regulation and control can be realized.

The present invention provides a modified n-hexadecane hydrocarbon fuel and a control method. The modified n-hexadecane hydrocarbon fuel comprises n-hexadecane and an additive, wherein the additive is triethylboron, triethylamine, or a triethylboron-triethylamine complex generated by a complexation reaction. The modified hydrocarbon fuel obtained by the method of the present invention has the advantages of stable physical form, no stratification, and good stability when in contact with air at room temperature. By controlling the chemical properties of hexadecane, the low-temperature ignition characteristics of the modified liquid hydrocarbon fuel can be efficiently regulated, and the operation is simple and practical. This invention solves the problem of difficult low-temperature ignition control of hydrocarbon fuels and can provide a solution to the ignition problem of advanced aircraft engines under harsh operating conditions.

The present application provides a naphtha directional adsorption separation method, and relates to the technical field of petroleum chemical industry.The present application adopts a double desorption agent process flow, uses stronger adsorption force between high carbon alkanes (n-dodecane, n-tetradecane or n-hexadecane) and adsorbents, solves the problems of incomplete desorption of low carbon alkanes desorption agent and low separation yield, and thus significantly improves the separation efficiency of the process.Meanwhile, the use of low carbon alkanes (n-pentane or n-hexane) to replace high carbon alkanes on the adsorbents can avoid the residue of high carbon alkanes on the adsorbents, and affect the recycling of the adsorbents.The present application adopts the double desorption agent process flow, which can ensure high separation efficiency and improve the utilization rate of the adsorbents at the same time.The present application can efficiently separate n-alkanes in naphtha, and the separated n-alkanes can be used as high-quality cracking ethylene (propylene) raw materials;the adsorption residual oil rich in isomeric alkanes, naphthenes and aromatic hydrocarbons can be used as high-quality catalytic reforming aromatic hydrocarbon raw materials.

The invention discloses a parsley fungus YDY-1 strain and an application of the parsley fungus YDY-1 strain in degradation of n-hexadecane. According to the present invention, the apiotrichum cotoxinovorans YDY-1 is named as the apiotrichum cotoxinovorans YDY-1, and is preserved in the China Center for Type Culture Collection (CCTCC) with the preservation number of CCTCC M 20251287, and the preservation number of the apiotrichum cotoxinovorans YDY-1 is CCTCC M 20251287; the parvibrio molitor YDY-1 provided by the invention has the capability of degrading n-hexadecane under the condition that the pH (Potential of Hydrogen) is 7.0 to 9.0, and can grow at 28 to 32 DEG C. The parvibrio molitor YDY-1 provided by the invention has relatively strong environmental adaptability and n-hexadecane degradation capability, and provides a basis for bioremediation of petroleum polluted environment and application of a microbial enhanced treatment technology.

The invention relates to a warm-keeping spandex fabric prepared from hollow fibers and a preparation method of the warm-keeping spandex fabric. The fabric can be prepared by the following method: firstly, preparing n-hexadecane and n-octadecane / polyurethane microcapsule phase change materials; secondly, dissolving n-hexadecane and an n-octadecane / polyurethane microcapsule phase change material into a spinning solution to prepare a spinning solution; thirdly, spinning is conducted on the spinning solution, and hollow polyurethane fibers are prepared; and finally, spinning the hollow polyurethane fibers into yarns, and weaving the yarns into the warm-keeping spandex fabric. The range of the air permeability of the spandex fabric prepared by the method is between 928.1 mm / s and 956.3 mm / s, and the range of the crow value of the spandex fabric prepared by the method is between 1.03 and 1.06; therefore, the spandex fabric prepared by the method disclosed by the invention has better warm-keeping performance on the premise of not influencing the air permeability.

The invention provides a quantitative detection method for solvent electrons induced by hydrocarbon-water interface microdroplets under high-temperature and high-pressure conditions, and belongs to the technical field of in-situ analysis of electrons in mixed fluid. The quantitative detection method comprises the following steps: mixing a silicomolybdic acid stock solution, a stannous chloride solution and water to obtain a standard heteropolyblue solution, testing the absorbance under the wavelength of 973nm, and drawing a standard curve of solvent electron quantity and absorbance; respectively adding the silicomolybdic acid reaction liquid and n-hexadecane into a quartz sample bottle to construct a hydrocarbon-water interface system; and heating the sealed quartz sample bottle at constant temperature, testing the absorbance of the silicomolybdic acid reaction liquid under the wavelength of 973nm after the reaction is completed, and substituting the absorbance into the standard curve to obtain the solvent electron amount. According to the method, the electron quantitation limit can reach 0.2 mmol / L, the electron content of the solvent can be accurately measured in a wide concentration range, and a reliable tool is provided for fine research of electron behaviors in micro-interface reaction.

The invention belongs to the technical field of diesel additives, and particularly relates to a diesel cetane number improver and a preparation process thereof, and the preparation process comprises the following steps: uniformly mixing isooctyl nitrate, n-hexadecane, n-eicosane, oleic acid and 2, 6-di-tert-butyl p-cresol to obtain a premixed solution; uniformly mixing absolute ethyl alcohol, glycerol and an emulsifier, adding the premixed solution, reacting, and drying to obtain particles; uniformly mixing ethyl acetate, isopropanol, n-butyl alcohol and an emulsifier, adding hexadecanol and EVA (Ethylene Vinyl Acetate)-210, and dissolving to obtain a film forming solution; and uniformly mixing ethyl acetate and isopropanol, adding the particles and the film-forming liquid, removing ethyl acetate, isopropanol and n-butyl alcohol, adding into liquid paraffin, and uniformly mixing to obtain the diesel cetane number improver. The prepared diesel oil cetane number improver can prevent isooctyl nitrate from being in direct contact with the external environment, slow down the generation speed of free radicals, effectively improve and stabilize the cetane number of diesel oil, and enable the cetane number of the diesel oil to be maintained at a high level in a long time.

The application discloses a kind of polyethylene composite materials for hot-melt butt joint polyethylene structural wall double-flat winding pipe, belong to high polymer material technical field. Including following component: polyethylene resin 100 parts;Carbon black master batch 2~4 parts;Polydopamine coated zinc oxide nanowire 0.5~2 parts;Phase change microcapsule 0.2~1 parts;The phase change microcapsule has with phenolic resin as shell, with n-hexadecane as core material structure.The polyethylene structural wall double-flat winding pipe prepared by the synergistic effect of polydopamine coated zinc oxide nanowire and phase change microcapsule in the application is not easy to produce bubble and pore when port hot-melt butt joint, can also shorten the pipe length that needs to be cut off, reduce cooling demoulding time, improve joint tensile strength and ring stiffness, improve hot-melt welding joint quality.

The invention provides a method for producing lactone sophorolipid by fermentation, which comprises the following steps: inoculating candida tropicalis strain into a seed culture medium for seed culture to obtain a seed solution; inoculating the seed solution into a fermentation culture medium for fermentation, and supplementing a carbon source and a nitrogen source in the fermentation process to obtain the microbial secondary metabolite lactone type sophorolipid, carbon sources of the seed culture medium and the fermentation culture medium comprise n-hexadecane, and ricinoleic acid and oleic hydroxylase are supplemented in the fermentation process to serve as precursor substances and reaction enzymes for synthesizing sophorolipid. Through mutual compounding of specific materials and processes, the growth rate of the thalli and the synthesis rate of the lactone type sophorolipid are effectively improved, so that the method can realize fermentation growth of the thalli and efficient synthesis of the lactone type sophorolipid in a short time.

The invention discloses a self-assembly microsphere reactor for dairy product processing and a preparation method and application thereof. The preparation method comprises the following steps: preparing silicon dioxide colloid nanoparticles as a water phase and n-hexadecane as an oil phase, and preparing a receiving solution containing a surfactant; preparing a water-in-oil emulsion from the prepared oil phase and water phase, shearing the water-in-oil emulsion into liquid drops, and collecting the liquid drops into a receiving liquid containing a surfactant; evaporating a water phase in the formed liquid drops to obtain self-assembled silicon dioxide microspheres; and finally, filling the obtained self-assembled silicon dioxide microspheres into a quartz column to obtain the self-assembled silicon dioxide microspheres. The self-assembly microsphere reactor provides an efficient reactor model for lactase hydrolysis reaction, and has a promoting effect on improving lactase hydrolysis efficiency and stability; meanwhile, the risk of activity loss caused by lactase falling is reduced, and the reusability of a catalytic system is greatly enhanced.

The invention relates to the technical field of protein modification intervention, and discloses application of polyphenol substances in intervention of cod protein modification, and cod protein is cod protein induced and modified by alpha, beta-unsaturated aldehyde in a multi-interface system. According to the method, a cod protein (CP) solution and n-hexadecane are used for constructing a multi-interface model system, a clickable probe yne-ACR is added to simulate the modification effect of alpha, beta-unsaturated aldehyde substances on cod protein, meanwhile, six polyphenols are added to interfere the modification process, and it is verified that the polyphenols interfere the alpha, beta-unsaturated aldehyde substances in the multi-interface system. The unique effect of beta, beta-unsaturated aldehyde substance modified protein provides a potential strategy for regulation and control of protein quality in a multi-interface food system.

The application provides a cloth structure with a radiation refrigeration coating and a preparation method thereof, the cloth structure comprising a cloth layer, a microsphere layer and a composite material layer, the cloth layer, the microsphere layer and the composite material layer being sequentially arranged from bottom to top, the thickness of the microsphere layer being 0.05-0.2 microns, and the thickness of the composite material layer being 0.05-0.15 microns; the component and the usage ratio of the microsphere layer being white PU glue:microsphere = 1:(0.01-0.04), and the microsphere being azodicarbonamide; the component and the usage ratio of the composite material layer being transparent PU glue:ATO tin antimony oxide powder:phase change material powder = 1:(0.01-0.09):(0.01-0.09), and the component of the phase change material powder comprising polyformaldehyde melamine, styrene-maleic anhydride and n-hexadecane. The application has the characteristics of good cooling effect, fast cooling speed, fast process speed, good comfort and washing resistance.

The invention discloses a permafrost region pile foundation and a construction method thereof, and relates to the technical field of permafrost region construction.The permafrost region pile foundation is characterized in that a reinforcement cage is arranged in a cast-in-place pile body, and the reinforcement cage and the cast-in-place pile body are coaxially arranged; the first temperature control structure is arranged at one end in the reinforcement cage, the first temperature control structure comprises a plurality of first pipe bodies, the two ends of each first pipe body are fixed to the reinforcement cage, the central axis of each first pipe body is perpendicular to the central axis of the reinforcement cage, and the first pipe bodies are filled with n-hexadecane; the second temperature control structure is arranged at the other end in the reinforcement cage, the second temperature control structure comprises a plurality of second pipe bodies, the two ends of the second pipe bodies are fixed to the reinforcement cage, the central axis of the second pipe bodies is perpendicular to the central axis of the reinforcement cage, and the second pipe bodies are filled with n-tetradecane. The method has the advantages that structural damage caused by frozen soil layer collapse due to temperature influence can be avoided, and structural safety is guaranteed.

To provide a fluororesin film having high uniformity of adhesive strength of a film.SOLUTION: A fluororesin film is a film composed of a composition containing a fluororesin, wherein an average value of contact angles to water measured at 5 positions, at intervals of 100 mm in a travel direction, in a place separated from a center, a right end and a left end in at least one surface by 100 mm is 105° or less, an average value of contact angles to n-hexadecane measured at 5 positions, at intervals of 100 mm in the travel direction, is 45° or less, and the film is long.SELECTED DRAWING: None

The invention belongs to the technical field of plant pest control, and discloses application of verticillium lecanii to cabbage pest control. According to the method, verticillium lecanii JMC-01 (the preservation number is CCTCC NO: M2018303) is colonized in a cabbage plant through foliar spraying, and the verticillium lecanii-cabbage symbiont is formed. After the green peach aphid infects the verticillium lecanii-cabbage symbiont, the green peach aphid shows obvious infection symptoms and finally causes death of the green peach aphid; besides, the verticillium lecanii-cabbage symbiont can generate specific volatile metabolites including n-hexadecane and 3-methyl-2-hydroxyindole, and has a repelling effect on green peach aphids, so that a biological barrier is constructed, and the insect resistance of cabbages is enhanced. According to the method, efficient and green prevention and control of the cabbage pests are achieved, and a new thought and method are provided for sustainable treatment of the cabbage pests.

The invention provides an air slow-release microbe control microsphere composite material and a preparation method thereof. The slow-release air microorganism control microsphere composite material comprises a phase change material, sodium chlorite gel microspheres, an acidifying agent, a penetrating agent and a water channel construction material, the phase change material is selected from at least one of n-hexadecane, n-octadecane, paraffin, stearic acid and palmitic acid; the penetrating agent is selected from at least one of fatty alcohol-polyoxyethylene ether, sodium sulfamate, alkylphenol polyoxyethylene ether and sulfated castor oil; the water channel construction material comprises sodium bicarbonate, cellulose and magnesium sulfate. The slow-release air microorganism control microsphere composite material provided by the invention is moderate in speed of releasing chlorine dioxide in air, so that overlarge concentration of chlorine dioxide in air is avoided, and meanwhile, the slow-release air microorganism control microsphere composite material is long in chlorine dioxide release period, and a disinfectant does not need to be frequently replaced.

The invention discloses a salt-tolerant petroleum hydrocarbon degrading bacterium and application thereof. The salt-tolerant petroleum hydrocarbon degrading bacterium disclosed by the invention is Acinetobacter junii H1, and the preservation number of the salt-tolerant petroleum hydrocarbon degrading bacterium in the China General Microbiological Culture Collection Center is CGMCC (China General Microbiological Culture Collection Center) No. 27582. The Acinetobacter junii H1 disclosed by the invention can grow by utilizing C10-C32 alkanes (such as n-hexadecane, n-octadecane, n-eicosane, n-tetracosane, n-octacosane and n-tridodecane) and solid paraffin containing more than n-uncosane as carbon sources, can also be used for degrading the alkanes, and can also be used for degrading the alkanes under high salt concentration. The strain disclosed by the invention has a good application prospect in pollution remediation of petroleum and components thereof in water and soil.

The invention belongs to the technical field of high polymer materials and microcapsules, and provides a continuous microcapsule film forming system and a preparation method of the continuous microcapsule film forming system. The preparation method comprises the following steps: by taking a four-monomer copolymer emulsion of methyl methacrylate, n-butyl acrylate, acrylic acid and glycidyl methacrylate as a free film-forming component, taking n-hexadecane as a core material and taking polyurea as a shell layer, self-assembling and coating the outer side of the shell layer with a free reaction type film-forming intermediate to form a core-shell-outer coating layer three-layer structure microcapsule; cooperative unification of low-viscosity stable dispersion and long-acting sealing of the core material under the high solid content condition is achieved, the triple contradictions of sealing performance of a continuous coating rheological window and the core material, low-temperature film forming, heat resistance and adhesion resistance and shell layer densification and core material release response are solved, and the phase change energy storage film has wide application value in the field of phase change energy storage films and functional coatings.

The invention provides a density-adjustable high-temperature-resistant pure oil-based completion fluid and a preparation method thereof.The preparation method comprises the following steps that high-density chlorinated paraffin and n-hexadecane are selected and mixed to serve as a base oil phase, after mixing is conducted according to different proportions, a main emulsifier and an auxiliary emulsifier are added, and high-speed shearing dispersion is conducted; the defoaming agent, the high-temperature organic soil and the auxiliary additive are sequentially added, and all the components are uniformly mixed through high-speed shearing and stirring. By optimizing the synergistic effect of the base oil phase and the emulsifier component, the stability of the completion fluid in the high-temperature environment of 150 DEG C or above is remarkably improved, meanwhile, it is ensured that the density can be adjusted between 0.9 g / cm < 2 > and 1.2 g / cm < 2 >, and the well control requirements of deep wells and ultra-deep wells are met. The prepared pure oil-based completion fluid has the advantages of no free water phase, small damage to the reservoir, excellent chip carrying capacity and lubricating property, solves the problems of high-temperature sedimentation, out-of-control rheological property and the like of the traditional oil-based completion fluid, and provides reliable technical support for efficient development of high-temperature and high-pressure oil and gas reservoirs.

Embodiments allow for forming a friction-modified touch-sensitive surface on a touch screen panel. In particular, the touch-sensitive surface is enhanced with two friction-modifying materials that are interspersed with each other as a monolayer according to a predetermined pattern on the surface of the touch screen panel. In one embodiment, the refractive indices of the materials differ from each other by more than 0.10. In another embodiment, the materials have a dynamic coefficient of friction that is within one range or the other of 0.01 and 0.05, respectively, measured relative to printed paper that has a dynamic coefficient of friction of 0.17 by itself. In another embodiment, the materials have a water contact angle that is greater than 90 degrees and an oil contact angle that is greater than 30 degrees, the oil contact angle being measured with n-hexadecane.

The application discloses a strain with high emulsification activity and anti-plant disease function, and the strain is Bacillus subtilis (CY-57) which is preserved in the China General Microbiological Culture Collection Center with a preservation number of CGMCC NO.28223. Bacillus subtilis The strain can produce a biological surfactant at a high yield, has excellent emulsification performance on a plurality of hydrocarbon compounds such as cyclohexane, n-hexadecane, liquid paraffin, kerosene and diesel oil, and can significantly inhibit the growth and invasion of a plurality of plant pathogenic bacteria (such as tomato early blight, wheat root rot, wheat scab, soybean root rot and rice seedling disease). The application further discloses a fermentation culture process of the strain, emulsification activity and application in biological control of plant diseases, and application of the strain and metabolites, so that the strain has ecological safety and industrial practicability, and has a wide application prospect.